HDR1012000130021229971500HOGS AND PIGS National Agricultural Statistics Service USDA Washington, D.C. Released December 29, 1997, by the National Agricultural Statistics Service (NASS), Agricultural Statistics Board, U.S. Department of Agriculture. For information on "Hogs and Pigs" call Mike Pallesen at (202) 720-3106, office hours 7:00 a.m. to 4:30 p.m. ET. U.S. Hog Inventory Up 7 Percent U.S. inventory of all hogs and pigs on December 1, 1997, was 59.9 million head. This was 7 percent above December 1996 but 1 percent below September 1, 1997. Breeding inventory, at 6.98 million head, is up 5 percent from December 1, 1996 and up 1 percent from September 1, 1997. Market hog inventory, at 52.9 million head was 7 percent above last year but 1 percent below last quarter. The September-November 1997 U.S. pig crop, at 25.3 million head, was 9 percent more than 1996 and 8 percent more than 1995. Sows farrowing during this period totaled 2.93 million head, 8 percent above last year. The sows farrowed during this quarter represented 42 percent of the breeding herd. The average pigs per litter continues to increase at a rapid pace, with an average of 8.63 pigs saved per litter for the September-November period. Last year the litter rate averaged 8.52 pigs per litter. Pigs saved per litter by size of operation ranged from 7.40 for operations with 1-99 hogs to 8.90 for operations with more than 5,000 hogs and pigs. U.S. hog producers intend to have 2.91 million sows farrow during the December 1997-February 1998 quarter, 9 percent above the actual farrowings during the same period last year, and 6 percent higher than 1996. Intended farrowings for March-May 1998, at 3.04 million sows, are 3 percent above both the 1997 and the 1996 period. The number of hog operations with hogs totaled 138,690 during 1997, down 11 percent from last year and 24 percent below 1995. Places with 2,000 or more hogs on hand accounted for 4 percent of the operations and 55 percent of the inventory. This is the second time operations with inventories over 2,000 head have controlled over 50 percent of the total inventory. The number of operations with over 5,000 head of inventory, at 1,520, accounted for 35 percent of the total inventory. The total number of hogs under contract, owned by these over 5,000 head operations, but raised by contractees, accounted for 25 percent of the total U.S. hog inventory. Revisions All inventory and pig crop estimates for 1996 were reviewed using final pig crop, official slaughter, import, and export data in U.S. level balance sheets. Based on the findings of this review, small adjustments to the previous quarters estimates were necessary . This report was approved on December 29, 1997. Acting Secretary ofAgricultureRichard E. Rominger Agricultural Statistics BoardChairpersonRich Allen Hogs and Pigs: Inventory Number by Class, Weight Group, and Quarter, United States, 1995-97 -------------------------------------------------------------------------------- : : : :1997 as % of Item : 1995 : 1996 : 1997 :------------- : : : : 1995 : 1996 -------------------------------------------------------------------------------- : ----------- 1,000 Head ----------- Percent : March 1 Inventory : All Hogs and Pigs : 58,465 56,340 55,810 95 99 Kept for Breeding : 6,998 6,765 6,838 98 101 Market : 51,467 49,575 48,972 95 99 : Market Hogs and Pigs : by Weight Groups : Under 60 Pounds : 19,251 18,790 18,564 96 99 60-119 Pounds : 12,498 11,980 11,714 94 98 120-179 Pounds : 10,594 10,095 10,026 95 99 180 Pounds and Over : 9,124 8,710 8,668 95 100 : June 1 Inventory : All Hogs and Pigs : 59,560 57,150 58,100 98 102 Kept for Breeding : 7,180 6,860 6,945 97 101 Market : 52,380 50,290 51,155 98 102 : Market Hogs and Pigs : by Weight Groups : Under 60 Pounds : 21,270 20,245 20,585 97 102 60-119 Pounds : 13,060 12,690 12,870 99 101 120-179 Pounds : 9,865 9,795 9,925 101 101 180 Pounds and Over : 8,185 7,560 7,775 95 103 : September 1 Inventory : All Hogs and Pigs : 60,540 58,150 60,384 100 104 Kept for Breeding : 6,898 6,765 6,943 101 103 Market : 53,642 51,385 53,441 100 104 : Market Hogs and Pigs : by Weight Groups : Under 60 Pounds : 20,235 19,320 20,349 101 105 60-119 Pounds : 13,532 12,780 13,255 98 104 120-179 Pounds : 10,985 10,590 10,831 99 102 180 Pounds and Over : 8,890 8,695 9,006 101 104 : December 1 Inventory : All Hogs and Pigs : 58,264 56,141 59,920 103 107 Kept for Breeding : 6,839 6,667 6,979 102 105 Market : 51,425 49,474 52,941 103 107 : Market Hogs and Pigs : by Weight Groups : Under 60 Pounds : 18,881 18,439 19,922 106 108 60-119 Pounds : 12,808 12,221 13,028 102 107 120-179 Pounds : 10,702 10,291 10,884 102 106 180 Pounds and Over : 9,034 8,522 9,107 101 107 -------------------------------------------------------------------------------- Farrowings: Number of Sows, Pig Crop, and Pigs per Litter, United States, 1995-98 -------------------------------------------------------------------------------- : : : : : 1997 as % of :1998 as Item : 1995 : 1996 : 1997 : 1998 :---------------:Percent : : : : : 1995 : 1996 :of 1997 -------------------------------------------------------------------------------- : ------------ 1,000 Head ------------ ----- Percent ----- : Sows Farrowing : Dec-Feb 1/ 2/ : 2,886 2,757 2,669 2,914 92 97 109 Mar-May 2/ : 3,170 2,955 2,941 3,043 93 100 103 Dec-May 1/ 2/ : 6,056 5,712 5,610 5,957 93 98 106 : Jun-Aug : 2,976 2,758 2,899 97 105 Sep-Nov : 2,815 2,717 2,931 104 108 Jun-Nov : 5,791 5,475 5,830 101 106 : Pig Crop : Dec-Feb 1/ : 23,851 23,160 22,990 96 99 Mar-May : 26,373 25,040 25,460 97 102 Dec-May 1/ : 50,224 48,200 48,450 96 101 : Jun-Aug : 24,813 23,597 25,220 102 107 Sep-Nov : 23,479 23,159 25,302 108 109 Jun-Nov : 48,292 46,756 50,522 105 108 : : ------------- Number ------------- Pigs per Litter : Dec-Feb 1/ : 8.27 8.40 8.61 104 103 Mar-May : 8.32 8.47 8.66 104 102 Dec-May 1/ : 8.29 8.44 8.64 104 102 : Jun-Aug : 8.34 8.56 8.70 104 102 Sep-Nov : 8.34 8.52 8.63 103 101 Jun-Nov : 8.34 8.54 8.67 104 102 -------------------------------------------------------------------------------- 1/ December preceding year. 2/ Intentions for 1998. Pigs per Litter: By Size of Operation, United States, 1996-97 -------------------------------------------------------------------------------- : Pigs per Litter on Operations Having :----------------------------------------------------------------- Pig Crop : 1-99 : 100-499 : 500-999 :1,000-1,999:2,000-4,999: 5,000+ : Head : Head : Head : Head : Head : Head -------------------------------------------------------------------------------- : Number : 1996 : Sep-Nov : 7.30 8.00 8.20 8.40 8.60 8.90 : 1997 : Dec-Feb 1/ : 7.20 7.70 8.10 8.40 8.60 8.90 Mar-May : 7.60 7.90 8.20 8.40 8.60 9.00 Jun-Aug : 7.50 7.90 8.10 8.50 8.60 9.00 Sep-Nov : 7.40 8.00 8.30 8.60 8.70 8.90 -------------------------------------------------------------------------------- 1/ December preceding year. Hogs and Pigs: Breeding, Market, and Total Inventory by State and United States, December 1, 1996-97 -------------------------------------------------------------------------------- : Breeding : Market : Total :----------------------------------------------------------------------- : : 1997 : : 1997 : : 1997 State : :---------------: :---------------: :--------------- : 1996 : :as % of: 1996 : :as % of: 1996 : :as % of : :Number : 1996 : :Number : 1996 : :Number : 1996 -------------------------------------------------------------------------------- : 1,000 Head Percent 1,000 Head Percent 1,000 Head Percent : AL : 25 20 80 175 170 97 200 190 95 AK : 0.40 0.50 125 1.2 1.5 125 1.6 2.0 125 AZ : 20 15 75 130 130 100 150 145 97 AR : 110 110 100 715 740 104 825 850 103 CA : 27 25 93 183 165 90 210 190 91 CO : 135 160 119 495 630 127 630 790 125 CT : 0.9 0.8 89 3.1 2.2 71 4 3 75 DE : 3 2 67 22 16 73 25 18 72 FL : 10 10 100 55 50 91 65 60 92 GA : 110 100 91 690 620 90 800 720 90 HI : 5 5 100 22 22 100 28 27 96 ID : 4 5 125 29 33 114 33 38 115 IL : 520 560 108 3,880 4,190 108 4,400 4,750 108 IN : 460 460 100 3,290 3,340 102 3,750 3,800 101 IA : 1,250 1,350 108 10,950 12,650 116 12,200 14,000 115 KS : 190 190 100 1,260 1,240 98 1,450 1,430 99 KY : 85 70 82 540 520 96 625 590 94 LA : 7 5 71 33 27 82 40 32 80 ME : 1.1 1.2 109 3.9 4.3 110 5.0 6 110 MD : 10 11 110 54 62 115 65 73 112 MA : 2.5 2.5 100 12 13 108 14.5 15.5 107 MI : 125 130 104 875 900 103 1,000 1,030 103 MN : 540 620 115 4,310 4,780 111 4,850 5,400 111 MS : 39 35 90 201 205 102 240 240 100 MO : 450 440 98 3,000 3,060 102 3,450 3,500 101 MT : 16 25 156 134 150 112 150 175 117 NE : 450 440 98 3,150 3,110 99 3,600 3,550 99 NV : 1.0 1.0 100 7.0 7.0 100 8 8 100 NH : 0.5 0.5 100 1.5 2.0 133 2.0 2.5 125 NJ : 2 2 100 19 14 74 21 16 76 NM : 1.7 1.9 112 3.3 3.1 94 5 5 100 NY : 13 11 85 59 56 95 70 67 96 NC : 1,000 1,050 105 8,300 8,650 104 9,300 9,700 104 ND : 20 18 90 180 147 82 200 165 83 OH : 210 200 95 1,290 1,420 110 1,500 1,620 108 OK : 170 230 135 1,150 1,410 123 1,320 1,640 124 OR : 5 4 80 35 31 89 40 35 88 PA : 105 120 114 845 880 104 950 1,000 105 RI : 0.5 0.5 100 2.3 2.1 91 2.8 2.6 93 SC : 35 33 94 265 257 97 300 290 97 SD : 155 160 103 1,045 1,090 104 1,200 1,250 104 TN : 51 45 88 349 295 85 400 340 85 TX : 66 75 114 444 485 109 510 560 110 UT : 40 55 138 123 240 195 163 295 181 VT : 0.3 0.5 167 1.3 1.7 131 1.6 2.2 138 VA : 51 45 88 349 375 107 400 420 105 WA : 8 8 100 27 31 115 35 39 111 WV : 3 2 67 16 12 75 19 14 74 WI : 120 105 88 680 625 92 800 730 91 WY : 13 19 146 69 76 110 82 95 116 : US : 6,667 6,979 105 49,474 52,941 107 56,141 59,920 107 -------------------------------------------------------------------------------- Market Hogs and Pigs: Inventory Number by Weight Group, State, and United States, December 1, 1996-97 -------------------------------------------------------------------------------- : Under : 60-119 : 120-179 : 180 Lbs. : 60 Lbs. : Lbs. : Lbs. : and Over State :----------------------------------------------------------------------- : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 -------------------------------------------------------------------------------- : 1,000 Head : AL : 52 60 45 40 39 40 39 30 AK : 0.6 0.6 0.3 0.3 0.2 0.2 0.1 0.4 AZ : 65 42 24 33 21 28 20 27 AR : 255 290 170 165 150 150 140 135 CA : 57 65 51 43 40 35 35 22 CO : 220 300 95 115 90 105 90 110 CT : 1.3 0.7 0.4 0.5 0.4 0.5 1.0 0.5 DE : 8 6 6 4 5 3 3 3 FL : 30 25 10 10 10 10 5 5 GA : 250 235 195 170 145 130 100 85 HI : 9 10 6 6 5 4 2 2 ID : 10 12 8 9 7 7 4 5 IL : 1,380 1,630 960 980 840 850 700 730 IN : 1,150 1,120 840 870 725 750 575 600 IA : 3,850 4,200 2,900 3,500 2,300 2,700 1,900 2,250 KS : 510 530 280 240 250 250 220 220 KY : 215 215 135 125 105 105 85 75 LA : 15 11 7 6 6 5 5 5 ME : 1.2 1.5 1.4 1.3 1.0 1.1 0.3 0.4 MD : 23 27 12 14 10 11 9 10 MA : 3.0 4.5 4.5 4.0 2.5 2.5 2.0 2.0 MI : 285 320 200 200 210 205 180 175 MN : 1,590 1,910 1,070 1,190 890 930 760 750 MS : 59 65 54 48 44 47 44 45 MO : 1,280 1,360 670 630 550 600 500 470 MT : 47 54 35 39 30 33 22 24 NE : 1,200 1,200 830 820 650 640 470 450 NV : 2.0 2.0 2.0 2.0 2.0 2.0 1.0 1.0 NH : 0.7 0.8 0.5 0.6 0.2 0.4 0.1 0.2 NJ : 4 4 2 3 7 4 6 4 NM : 1.3 1.2 0.8 0.9 0.7 0.5 0.5 0.5 NY : 23 23 14 13 11 11 11 9 NC : 3,250 3,400 1,950 2,020 1,750 1,820 1,350 1,410 ND : 60 60 40 30 40 32 40 25 OH : 570 630 300 320 280 300 140 170 OK : 420 480 220 260 210 200 300 470 OR : 15 12 8 8 5 6 7 5 PA : 290 340 220 230 175 170 160 140 RI : 1.0 0.9 0.8 0.8 0.4 0.3 0.1 0.1 SC : 100 90 68 65 53 55 44 47 SD : 375 380 280 310 210 220 180 180 TN : 129 115 85 75 71 60 64 45 TX : 143 145 99 115 96 110 106 115 UT : 48 100 32 42 30 38 13 60 VT : 0.2 1.0 0.6 0.4 0.2 0.1 0.3 0.2 VA : 129 141 85 89 71 77 64 68 WA : 11 9 8 10 5 7 3 5 WV : 7 4 3 2 3 3 4 3 WI : 270 260 175 150 130 110 105 105 WY : 24 29 18 19 15 15 12 13 : US : 18,439 19,922 12,221 13,028 10,291 10,884 8,522 9,107 -------------------------------------------------------------------------------- Hogs and Pigs: Breeding, Market, and Total Inventory by State and United States, March 1, 1996-97 -------------------------------------------------------------------------------- : Breeding : Market : Total :----------------------------------------------------------------------- : : 1997 : : 1997 : : 1997 State : :---------------: :---------------: :--------------- : 1996 : :as % of: 1996 : :as % of: 1996 : :as % of : :Number : 1996 : :Number : 1996 : :Number : 1996 -------------------------------------------------------------------------------- : 1,000 Head Percent 1,000 Head Percent 1,000 Head Percent : AR : 115 110 96 675 750 111 790 860 109 GA : 130 105 81 770 695 90 900 800 89 IL : 580 550 95 4,170 3,850 92 4,750 4,400 93 IN : 470 450 96 3,430 3,150 92 3,900 3,600 92 IA : 1,270 1,300 102 11,230 10,800 96 12,500 12,100 97 KS : 160 180 113 1,040 1,180 113 1,200 1,360 113 KY : 95 80 84 635 520 82 730 600 82 MI : 150 130 87 850 820 96 1,000 950 95 MN : 550 600 109 4,250 4,400 104 4,800 5,000 104 MO : 480 450 94 2,870 2,800 98 3,350 3,250 97 NE : 440 450 102 3,260 3,100 95 3,700 3,550 96 NC : 935 1,050 112 7,465 8,450 113 8,400 9,500 113 OH : 230 200 87 1,420 1,250 88 1,650 1,450 88 OK : 160 180 113 890 1,190 134 1,050 1,370 130 PA : 110 120 109 930 850 91 1,040 970 93 SD : 170 160 94 1,150 970 84 1,320 1,130 86 WI : 120 115 96 740 675 91 860 790 92 : Oth : Sts 1/ : 600 608 101 3,800 3,522 93 4,400 4,130 94 : US : 6,765 6,838 101 49,575 48,972 99 56,340 55,810 99 -------------------------------------------------------------------------------- 1/ Individual State estimates not available for the 33 other States. Market Hogs and Pigs: Inventory Number by Weight Group, State, and United States, March 1, 1996-97 -------------------------------------------------------------------------------- : Under : 60-119 : 120-179 : 180 Lbs. : 60 Lbs. : Lbs. : Lbs. : and Over State :----------------------------------------------------------------------- : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 -------------------------------------------------------------------------------- : 1,000 Head : AR : 310 260 145 175 135 170 85 145 GA : 305 275 200 180 170 150 95 90 IL : 1,520 1,400 980 900 900 870 770 680 IN : 1,250 1,170 880 790 680 640 620 550 IA : 3,800 3,700 2,830 2,820 2,450 2,280 2,150 2,000 KS : 405 490 240 235 210 210 185 245 KY : 245 205 160 130 125 105 105 80 MI : 275 270 210 205 190 190 175 155 MN : 1,660 1,640 1,020 1,080 870 910 700 770 MO : 1,210 1,240 650 620 570 540 440 400 NE : 1,280 1,250 800 760 630 590 550 500 NC : 3,050 3,400 1,680 1,920 1,400 1,680 1,335 1,450 OH : 590 560 340 260 300 290 190 140 OK : 380 410 155 200 135 190 220 390 PA : 345 330 225 220 195 170 165 130 SD : 430 375 275 220 240 200 205 175 WI : 285 265 190 165 145 125 120 120 : Oth : Sts 1/ : 1,450 1,324 1,000 834 750 716 600 648 : US : 18,790 18,564 11,980 11,714 10,095 10,026 8,710 8,668 -------------------------------------------------------------------------------- 1/ Individual State estimates not available for the 33 other States. Hogs and Pigs: Breeding, Market, and Total Inventory by State and United States, June 1, 1996-97 -------------------------------------------------------------------------------- : Breeding : Market : Total :----------------------------------------------------------------------- : : 1997 : : 1997 : : 1997 State : :---------------: :---------------: :--------------- : 1996 : :as % of: 1996 : :as % of: 1996 : :as % of : :Number : 1996 : :Number : 1996 : :Number : 1996 -------------------------------------------------------------------------------- : 1,000 Head Percent 1,000 Head Percent 1,000 Head Percent : AR : 110 115 105 660 795 120 770 910 118 GA : 110 105 95 760 695 91 870 800 92 IL : 580 560 97 4,120 3,940 96 4,700 4,500 96 IN : 460 440 96 3,390 3,210 95 3,850 3,650 95 IA : 1,300 1,340 103 11,500 11,360 99 12,800 12,700 99 KS : 180 180 100 1,140 1,200 105 1,320 1,380 105 KY : 85 75 88 565 525 93 650 600 92 MI : 140 150 107 960 950 99 1,100 1,100 100 MN : 550 610 111 4,200 4,590 109 4,750 5,200 109 MO : 560 455 81 2,940 3,095 105 3,500 3,550 101 NE : 450 450 100 3,350 3,250 97 3,800 3,700 97 NC : 950 1,050 111 7,950 8,750 110 8,900 9,800 110 OH : 210 210 100 1,290 1,390 108 1,500 1,600 107 OK : 160 210 131 990 1,290 130 1,150 1,500 130 PA : 110 115 105 910 875 96 1,020 990 97 SD : 140 165 118 1,060 1,025 97 1,200 1,190 99 WI : 115 115 100 705 695 99 820 810 99 : Oth : Sts 1/ : 650 600 92 3,800 3,520 93 4,450 4,120 93 : US : 6,860 6,945 101 50,290 51,155 102 57,150 58,100 102 -------------------------------------------------------------------------------- 1/ Individual State estimates not available for the the 33 other States. Market Hogs and Pigs: Inventory Number by Weight Group, State, and United States, June 1, 1996-97 -------------------------------------------------------------------------------- : Under : 60-119 : 120-179 : 180 Lbs. : 60 Lbs. : Lbs. : Lbs. : and Over State :----------------------------------------------------------------------- : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 -------------------------------------------------------------------------------- : 1,000 Head : AR : 300 250 150 190 110 205 100 150 GA : 310 270 200 185 160 150 90 90 IL : 1,600 1,580 1,070 980 860 790 590 590 IN : 1,270 1,220 870 780 670 640 580 570 IA : 4,450 4,350 3,080 3,130 2,290 2,200 1,680 1,680 KS : 450 495 290 290 230 235 170 180 KY : 230 210 145 130 110 105 80 80 MI : 475 430 195 200 165 190 125 130 MN : 1,640 1,780 1,040 1,160 840 950 680 700 MO : 1,350 1,450 680 680 525 565 385 400 NE : 1,420 1,350 840 830 600 590 490 480 NC : 3,070 3,400 1,920 2,170 1,630 1,830 1,330 1,350 OH : 600 640 310 340 240 260 140 150 OK : 420 470 190 210 150 200 230 410 PA : 330 320 230 220 190 180 160 155 SD : 430 430 260 255 200 180 170 160 WI : 280 290 180 170 135 125 110 110 : Oth : Sts 1/ : 1,620 1,650 1,040 950 690 530 450 390 : US : 20,245 20,585 12,690 12,870 9,795 9,925 7,560 7,775 -------------------------------------------------------------------------------- 1/ Individual State estimates not available for the 33 other States. Hogs and Pigs: Breeding, Market, and Total Inventory by State and United States, September 1, 1996-97 -------------------------------------------------------------------------------- : Breeding : Market : Total :----------------------------------------------------------------------- : : 1997 : : 1997 : : 1997 State : :---------------: :---------------: :--------------- : 1996 : :as % of: 1996 : :as % of: 1996 : :as % of : :Number : 1996 : :Number : 1996 : :Number : 1996 -------------------------------------------------------------------------------- : 1,000 Head Percent 1,000 Head Percent 1,000 Head Percent : AR : 110 115 105 725 785 108 835 900 108 GA : 115 100 87 755 690 91 870 790 91 IL : 560 530 95 4,140 4,070 98 4,700 4,600 98 IN : 450 450 100 3,350 3,400 101 3,800 3,850 101 IA : 1,250 1,350 108 11,750 12,650 108 13,000 14,000 108 KS : 185 190 103 1,365 1,240 91 1,550 1,430 92 KY : 85 75 88 550 525 95 635 600 94 MI : 125 140 112 1,005 1,010 100 1,130 1,150 102 MN : 560 620 111 4,340 4,780 110 4,900 5,400 110 MO : 515 435 84 2,985 3,115 104 3,500 3,550 101 NE : 450 450 100 3,250 3,200 98 3,700 3,650 99 NC : 980 1,050 107 8,320 8,950 108 9,300 10,000 108 OH : 220 200 91 1,330 1,300 98 1,550 1,500 97 OK : 160 210 131 1,070 1,370 128 1,230 1,580 128 PA : 105 120 114 895 880 98 1,000 1,000 100 SD : 130 160 123 1,010 1,030 102 1,140 1,190 104 WI : 115 120 104 695 710 102 810 830 102 : Oth : Sts 1/ : 650 628 97 3,850 3,736 97 4,500 4,364 97 : US : 6,765 6,943 103 51,385 53,441 104 58,150 60,384 104 -------------------------------------------------------------------------------- 1/ Individual State estimates not available for the 33 other States. Market Hogs and Pigs: Inventory Number by Weight Group, State, and United States, September 1, 1996-97 -------------------------------------------------------------------------------- : Under : 60-119 : 120-179 : 180 Lbs. : 60 Lbs. : Lbs. : Lbs. : and Over State :----------------------------------------------------------------------- : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 -------------------------------------------------------------------------------- : 1,000 Head : AR : 270 260 175 185 145 195 135 145 GA : 300 270 185 175 150 150 120 95 IL : 1,450 1,430 1,020 980 890 860 780 800 IN : 1,190 1,190 870 850 730 740 560 620 IA : 3,750 4,220 3,350 3,650 2,550 2,630 2,100 2,150 KS : 575 530 285 240 275 230 230 240 KY : 225 215 145 130 100 100 80 80 MI : 325 350 290 275 210 205 180 180 MN : 1,700 1,920 1,060 1,200 840 920 740 740 MO : 1,320 1,440 640 640 590 550 435 485 NE : 1,350 1,330 790 780 660 650 450 440 NC : 3,280 3,560 1,910 2,080 1,730 1,870 1,400 1,440 OH : 560 580 320 320 250 240 200 160 OK : 440 490 190 240 185 230 255 410 PA : 325 350 220 220 190 165 160 145 SD : 375 405 260 255 210 200 165 170 WI : 275 290 170 175 135 135 115 110 : Oth : Sts 1/ : 1,610 1,519 900 860 750 761 590 596 : US : 19,320 20,349 12,780 13,255 10,590 10,831 8,695 9,006 -------------------------------------------------------------------------------- 1/ Individual State estimates not available for the 33 other States. Annual Farrowings: Number of Sows, Pigs per Litter, and Pig Crop by State and United States, December-November 1996-97 1/ -------------------------------------------------------------------------------- : Sows Farrowing : : Pig Crop :--------------------------: Pigs :-------------------------- : : 1997 : Per Litter : : 1997 State : :-----------------------------------: :----------------- : 1996 : :as % of : : : 1996 : :as % of : : Number : 1996 : 1996 : 1997 : : Number : 1996 -------------------------------------------------------------------------------- : 1,000 Head Percent --- Number -- 1,000 Head Percent : AL : 40 37 93 7.78 7.76 311 287 92 AK : 0.43 0.48 112 7.67 7.71 3.3 3.7 112 AZ : 35 36 103 8.46 8.53 296 307 104 AR : 217 226 104 8.63 8.45 1,872 1,909 102 CA : 42 42 100 9.29 9.00 390 378 97 CO : 167 200 120 8.59 8.50 1,434 1,700 119 CT : 0.70 0.55 79 8.14 7.45 6 4 72 DE : 4.7 2.7 57 8.30 8.52 39 23 59 FL : 23 18 76 7.00 7.49 161 131 81 GA : 165 148 90 8.29 8.28 1,368 1,226 90 HI : 6.8 5.5 81 6.62 6.91 45 38 84 ID : 8.3 8.0 96 7.59 7.88 63 63 100 IL : 900 900 100 8.37 8.40 7,529 7,556 100 IN : 760 730 96 8.29 8.45 6,298 6,169 98 IA : 2,085 2,020 97 8.40 8.58 17,508 17,326 99 KS : 298 350 117 8.64 9.20 2,574 3,221 125 KY : 137 124 91 8.23 8.36 1,127 1,037 92 LA : 11.0 8.8 80 7.64 7.05 84 62 74 ME : 1.4 1.6 114 6.43 7.50 9.0 12.0 133 MD : 14 18 129 8.57 8.39 120 151 126 MA : 3.0 2.5 83 6.67 7.20 20 18 90 MI : 202 202 100 8.22 8.55 1,661 1,728 104 MN : 945 995 105 8.75 8.83 8,268 8,785 106 MS : 51.0 54.0 106 7.73 8.54 394 461 117 MO : 745 765 103 8.35 8.75 6,222 6,695 108 MT : 37 36 97 8.73 8.75 323 315 98 NE : 705 695 99 8.49 8.50 5,985 5,908 99 NV : 1.9 2.4 126 7.89 8.33 15 20 133 NH : 0.5 0.6 110 7.00 8.18 4 5 129 NJ : 2.2 2.4 109 7.27 7.10 16 17 107 NM : 1.5 1.4 93 7.33 7.14 11.0 10.0 91 NY : 16 16 100 7.50 7.50 120 120 100 NC : 1,855 2,040 110 8.74 8.89 16,209 18,132 112 ND : 43 34 79 8.35 8.50 359 289 81 OH : 333 335 101 8.24 8.41 2,743 2,817 103 OK : 295 362 123 9.38 9.42 2,768 3,410 123 OR : 7.5 9.5 127 8.40 8.32 63 79 125 PA : 171 181 106 8.47 8.62 1,449 1,561 108 RI : 0.66 0.59 89 6.52 7.12 4.3 4.2 98 SC : 78 72 92 8.29 8.32 647 599 93 SD : 260 262 101 8.38 8.45 2,178 2,214 102 TN : 97 73 75 7.88 8.16 764 596 78 TX : 96 74 77 8.49 8.36 815 619 76 UT : 28 51 180 8.36 8.67 234 438 187 VT : 0.36 0.40 111 9.17 9.25 3.3 3.7 112 VA : 81 77 95 8.33 8.66 675 667 99 WA : 10.0 8.0 80 8.80 8.63 88 69 78 WV : 4.6 4.0 87 8.04 7.75 37.0 31.0 84 WI : 183 181 99 8.17 8.43 1,495 1,526 102 WY : 17.0 28.0 165 8.82 8.70 150 244 162 : US : 11,187 11,440 102 8.49 8.65 94,957 98,984 104 -------------------------------------------------------------------------------- 1/ December preceding year. Farrowings: Number of Sows, Pigs Per Litter, and Pig Crop by State and United States, December-February 1996-98 1/ -------------------------------------------------------------------------------- : Sows Farrowing : : Pig Crop 2/ :-------------------------------: Pigs :----------------------- : : : 1998 3/ : Per Litter : : 1997 State : : :-------------------------------: :--------------- : 1996 : 1997 : :as % of: : : 1996 : :as % of : : :Number : 1997 : 1996 : 1997 : :Number : 1996 -------------------------------------------------------------------------------- : ----- 1,000 Head ---- Percent -- Number -- 1,000 Head Percent : AR : 54 52 55 106 9.10 8.50 491 442 90 GA : 42 38 35 92 8.00 8.05 336 306 91 IL : 210 200 215 108 8.20 8.50 1,722 1,700 99 IN : 200 180 185 103 8.20 8.50 1,640 1,530 93 IA : 535 460 540 117 8.25 8.50 4,414 3,910 89 KS : 62 80 90 113 8.20 9.10 508 728 143 KY : 38 31 31 100 8.10 8.30 308 257 83 MI : 40 40 50 125 8.20 8.40 328 336 102 MN : 240 230 260 113 8.80 8.70 2,112 2,001 95 MO : 180 180 180 100 8.00 8.60 1,440 1,548 108 NE : 175 175 175 100 8.50 8.45 1,488 1,479 99 NC : 450 500 525 105 8.75 8.90 3,938 4,450 113 OH : 80 75 90 120 8.20 8.30 656 623 95 OK : 62 78 110 141 9.20 9.50 570 741 130 PA : 44 44 48 109 8.60 8.50 378 374 99 SD : 65 60 65 108 8.60 8.50 559 510 91 WI : 48 44 40 91 8.00 8.40 384 370 96 : Oth : Sts 4/ : 232 202 220 109 8.15 8.34 1,888 1,685 89 : US : 2,757 2,669 2,914 109 8.40 8.61 23,160 22,990 99 -------------------------------------------------------------------------------- 1/ December preceding year. 2/ Number of pigs born December-February that were still on hand March 1, or had been sold. 3/ Intentions. 4/ Individual State estimates not available for the 33 other States. Farrowings: Number of Sows, Pigs per Litter, and Pig Crop by State and United States, March-May 1996-98 -------------------------------------------------------------------------------- : Sows Farrowing : : Pig Crop 1/ :-------------------------------: Pigs :----------------------- : : : 1998 2/ : per Litter : : 1997 State : : :-------------------------------: :--------------- : 1996 : 1997 : :as % of: : : 1996 : :as % of : : :Number : 1997 : 1996 : 1997 : :Number : 1996 -------------------------------------------------------------------------------- : ----- 1,000 Head ---- Percent -- Number -- ----- 1,000 Head ---- : AR : 57 60 56 93 8.50 8.30 485 498 103 GA : 45 38 35 92 8.45 8.35 380 317 83 IL : 250 240 240 100 8.40 8.40 2,100 2,016 96 IN : 195 180 190 106 8.30 8.40 1,619 1,512 93 IA : 570 520 570 110 8.40 8.60 4,788 4,472 93 KS : 70 90 90 100 8.40 9.20 588 828 141 KY : 34 31 31 100 8.25 8.50 281 264 94 MI : 65 60 60 100 8.10 8.40 527 504 96 MN : 245 250 260 104 8.70 8.85 2,132 2,213 104 MO : 200 200 200 100 8.40 8.80 1,680 1,760 105 NE : 195 185 175 95 8.50 8.50 1,658 1,573 95 NC : 460 515 540 105 8.70 8.90 4,002 4,584 115 OH : 88 85 90 106 8.25 8.40 726 714 98 OK : 76 87 110 126 9.50 9.50 722 827 115 PA : 44 45 47 104 8.40 8.60 370 387 105 SD : 74 70 75 107 8.20 8.40 607 588 97 WI : 46 46 39 85 8.20 8.50 377 391 104 : Oth : Sts 3/ : 241 239 235 98 8.30 8.42 1,998 2,012 101 : US : 2,955 2,941 3,043 103 8.47 8.66 25,040 25,460 102 -------------------------------------------------------------------------------- 1/ Number of pigs born March-May that were still on hand June 1, or had been sold. 2/ Intentions. 3/ Individual State estimates not available for the 33 other States. Farrowings: Number of Sows, Pigs per Litter, and Pig Crop by State and United States, June-August 1996-97 -------------------------------------------------------------------------------- : Sows Farrowing : : Pig Crop 1/ :--------------------------: Pigs :-------------------------- : : 1997 : per Litter : : 1997 State : :-----------------------------------: :----------------- : 1996 : :as % of : : : 1996 : :as % of : : Number : 1996 : 1996 : 1997 : : Number : 1996 -------------------------------------------------------------------------------- : 1,000 Head Percent --- Number -- 1,000 Head Percent : AR : 54 58 107 8.50 8.60 459 499 109 GA : 43 37 86 8.40 8.40 361 311 86 IL : 220 220 100 8.50 8.40 1,870 1,848 99 IN : 185 185 100 8.30 8.40 1,536 1,554 101 IA : 500 520 104 8.50 8.70 4,250 4,524 106 KS : 81 90 111 8.80 9.20 713 828 116 KY : 33 31 94 8.25 8.30 272 257 94 MI : 52 54 104 8.30 8.70 432 470 109 MN : 235 255 109 8.70 8.85 2,044 2,257 110 MO : 180 190 106 8.60 8.90 1,548 1,691 109 NE : 165 165 100 8.55 8.55 1,411 1,411 100 NC : 470 515 110 8.75 8.90 4,113 4,584 111 OH : 85 85 100 8.20 8.30 697 706 101 OK : 79 98 124 9.30 9.40 735 921 125 PA : 42 46 110 8.50 8.70 357 400 112 SD : 56 65 116 8.50 8.40 476 546 115 WI : 45 47 104 8.40 8.50 378 400 106 : Oth : Sts 2/ : 233 238 102 8.35 8.45 1,945 2,013 103 : US : 2,758 2,899 105 8.56 8.70 23,597 25,220 107 -------------------------------------------------------------------------------- 1/ Number of pigs born June-August that were still on hand September 1, or had been sold. 2/ Individual State estimates not available for the 33 other States. Farrowings: Number of Sows, Pigs per Litter, and Pig Crop by State and United States, September-November 1996-97 -------------------------------------------------------------------------------- : Sows Farrowing : : Pig Crop 1/ :--------------------------: Pigs :-------------------------- : : 1997 : per Litter : : 1997 State : :-----------------------------------: :----------------- : 1996 : :as % of : : : 1996 : :as % of : : Number : 1996 : 1996 : 1997 : : Number : 1996 -------------------------------------------------------------------------------- : 1,000 Head Percent --- Number -- 1,000 Head Percent : AR : 52 56 108 8.40 8.40 437 470 108 GA : 35 35 100 8.30 8.30 291 292 100 IL : 220 240 109 8.35 8.30 1,837 1,992 108 IN : 180 185 103 8.35 8.50 1,503 1,573 105 IA : 480 520 108 8.45 8.50 4,056 4,420 109 KS : 85 90 106 9.00 9.30 765 837 109 KY : 32 31 97 8.30 8.35 266 259 97 MI : 45 48 107 8.30 8.70 374 418 112 MN : 225 260 116 8.80 8.90 1,980 2,314 117 MO : 185 195 105 8.40 8.70 1,554 1,696 109 NE : 170 170 100 8.40 8.50 1,428 1,445 101 NC : 475 510 107 8.75 8.85 4,156 4,514 109 OH : 80 90 113 8.30 8.60 664 774 117 OK : 78 99 127 9.50 9.30 741 921 124 PA : 41 46 112 8.40 8.70 344 400 116 SD : 65 67 103 8.25 8.50 536 570 106 WI : 44 44 100 8.10 8.30 356 365 103 : Oth : Sts 2/ : 225 245 109 8.32 8.63 1,871 2,042 109 : US : 2,717 2,931 108 8.52 8.63 23,159 25,302 109 -------------------------------------------------------------------------------- 1/ Number of pigs born September-November that were still on hand December 1 or had been sold. 2/ Individual State estimates not available for the 33 other States. Monthly Farrowings: Number of Sows, Pigs per Litter, and Pig Crop, United States December-November 1996-97 1/ -------------------------------------------------------------------------------- : Sows Farrowing : Pigs per Litter : Pig Crop Month :----------------------------------------------------------------------- : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 -------------------------------------------------------------------------------- : --- 1,000 Head --- ---- Number ---- --- 1,000 Head --- : Dec 1/ : 925 880 8.31 8.55 7,690 7,520 Jan : 870 873 8.37 8.64 7,280 7,540 Feb : 962 916 8.51 8.66 8,190 7,930 Mar : 970 950 8.49 8.43 8,240 8,010 Apr : 965 996 8.44 8.63 8,140 8,600 May : 1,020 995 8.49 8.89 8,660 8,850 Jun : 920 979 8.48 8.35 7,800 8,171 Jul : 908 968 8.63 8.73 7,840 8,450 Aug : 930 952 8.56 9.03 7,957 8,601 Sep : 890 965 8.37 8.39 7,450 8,100 Oct : 920 988 8.50 8.81 7,819 8,700 Nov : 907 978 8.70 8.69 7,890 8,502 : Total : 11,187 11,440 8.49 8.65 94,957 98,984 -------------------------------------------------------------------------------- 1/ December preceding year. Hogs and Pigs: Number of Operations with Hogs, by State and United States, 1996-97 1/ -------------------------------------------------------------------------------- : Operation With Hogs State :----------------------------------------------------------------------- : 1996 : 1997 -------------------------------------------------------------------------------- : Number : AL : 1,600 1,200 AK : 50 50 AZ : 400 400 AR : 2,600 2,400 CA : 3,400 3,000 CO : 1,100 1,000 CT : 300 200 DE : 130 110 FL : 2,400 2,400 GA : 3,500 2,800 HI : 350 350 ID : 1,100 900 IL : 8,800 7,500 IN : 8,000 7,000 IA : 21,000 18,000 KS : 4,100 3,600 KY : 2,500 1,500 LA : 1,000 950 ME : 1,600 1,200 MD : 580 540 MA : 500 500 MI : 4,400 4,100 MN : 11,000 10,800 MS : 3,000 3,000 MO : 7,000 5,500 MT : 750 650 NE : 8,000 7,000 NV : 140 140 NH : 300 250 NJ : 700 700 NM : 500 500 NY : 1,600 1,500 NC : 6,000 5,800 ND : 1,300 1,000 OH : 10,000 9,000 OK : 3,400 2,800 OR : 1,400 1,200 PA : 5,100 4,500 RI : 50 50 SC : 1,600 1,600 SD : 3,500 2,800 TN : 3,400 3,000 TX : 6,700 6,500 UT : 600 500 VT : 400 400 VA : 2,200 2,100 WA : 1,800 1,800 WV : 1,300 1,100 WI : 4,700 4,400 WY : 400 400 : US : 156,250 138,690 -------------------------------------------------------------------------------- 1/ An operation is any place having one or more hogs and pigs on hand at any time during the year. Totals may not add due to rounding. Hogs and Pigs: Number of Operations by Size Group, Selected States, Region, and United States, 1996-97 1/ -------------------------------------------------------------------------------- : Operations Having :----------------------------------------------------------------------- State : 1-99 Head : 100-499 Head : 500-999 Head :----------------------------------------------------------------------- : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 -------------------------------------------------------------------------------- : Number : AR : 2,100 1,900 230 240 60 60 GA : 2,700 2,100 500 450 160 120 IL : 2,900 2,600 3,300 2,600 1,300 1,200 IN : 3,700 2,900 2,400 2,400 1,000 800 IA : 4,600 4,500 8,900 6,800 4,300 3,500 KS : 2,400 2,300 1,200 750 310 360 KY : 1,800 950 400 270 180 170 MI : 3,200 2,800 750 820 170 180 MN : 5,000 4,900 3,300 3,100 1,400 1,400 MO : 3,600 2,600 2,300 1,900 670 530 NE : 2,600 2,300 3,500 2,900 1,100 1,100 NC : 4,000 3,700 310 280 190 180 OH : 7,000 6,500 2,200 1,700 490 490 OK : 3,200 2,600 80 50 20 40 PA : 3,800 3,400 800 600 220 200 SD : 1,200 950 1,600 1,200 450 400 WI : 3,300 3,100 1,000 930 220 210 : Oth : Sts 2/ : 37,700 34,800 3,500 3,000 780 730 : US : 94,800 84,900 36,270 29,990 13,020 11,670 -------------------------------------------------------------------------------- See footnotes at end of table. --continued Hogs and Pigs: Number of Operations by Size Group, Selected States, Region, and United States, 1996-97 1/ (continued) -------------------------------------------------------------------------------- : Operations Having :----------------------------------------------------------------------- State : 1,000-1,999 Head : 2,000-4,999 Head : 5,000+ Head :----------------------------------------------------------------------- : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 -------------------------------------------------------------------------------- : Number : AR : 100 90 70 70 40 40 GA : 80 60 30 40 30 30 IL : 830 660 370 340 100 100 IN : 500 500 300 300 100 100 IA : 2,300 2,000 700 980 200 220 KS : 90 90 70 70 30 30 KY : 70 60 35 35 15 15 MI : 150 150 100 120 30 30 MN : 800 850 350 400 150 150 MO : 260 260 130 160 40 50 NE : 550 470 200 170 50 60 NC : 350 340 700 820 450 480 OH : 200 200 90 90 20 20 OK : 10 20 80 80 10 10 PA : 180 160 80 115 20 25 SD : 150 150 60 60 40 40 WI : 130 110 40 40 10 10 : Oth : Sts 2/ : 450 420 115 130 105 110 : US : 7,200 6,590 3,520 4,020 1,440 1,520 -------------------------------------------------------------------------------- 1/ An operation is any place having one or more hogs and pigs on hand any time during the year. 2/ Individual State estimates not available for the 33 other States. Hogs and Pigs: Percent of Inventory by Size Group, Selected States, Region, and United States, 1996-97 1/ -------------------------------------------------------------------------------- : Inventory on Operations Having :----------------------------------------------------------------------- State : 1-99 Head : 100-499 Head : 500-999 Head :----------------------------------------------------------------------- : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 -------------------------------------------------------------------------------- : Percent : AR : 4.0 4.0 7.0 7.0 6.0 6.0 GA : 9.0 7.0 16.0 13.0 12.0 10.0 IL : 2.0 2.0 18.0 14.0 18.0 19.0 IN : 3.0 2.0 16.0 16.0 17.0 14.0 IA : 1.3 1.0 18.0 16.0 23.0 20.0 KS : 4.5 3.5 18.0 9.5 15.0 15.0 KY : 5.0 3.0 16.0 11.0 18.0 21.0 MI : 5.5 5.0 14.0 13.0 9.5 11.0 MN : 3.0 3.0 15.0 13.0 18.0 16.0 MO : 2.5 2.0 12.0 10.0 12.0 9.5 NE : 3.0 2.8 23.0 21.0 20.0 22.0 NC : 0.5 0.4 1.0 0.6 1.5 1.2 OH : 10.0 8.0 30.0 26.0 20.0 23.0 OK : 2.0 1.5 2.0 1.0 1.0 3.0 PA : 6.0 4.0 17.0 12.0 14.0 13.0 SD : 3.5 3.0 31.5 27.0 23.0 23.0 WI : 9.0 10.0 28.0 27.0 18.0 19.0 : Oth : Sts 2/ : 9.0 8.0 12.0 10.0 10.0 9.0 : US : 3.0 3.0 15.0 12.0 15.0 14.0 -------------------------------------------------------------------------------- See footnotes at end of table. --continued Hogs and Pigs: Percent of Inventory by Size Group, Selected States, Region, and United States, 1996-97 1/ (continued) -------------------------------------------------------------------------------- : Inventory on Operations Having :----------------------------------------------------------------------- State : 1,000-1,999 Head : 2,000-4,999 Head : 5,000+ Head :----------------------------------------------------------------------- : 1996 : 1997 : 1996 : 1997 : 1996 : 1997 -------------------------------------------------------------------------------- : Percent : AR : 18.0 17.0 30.0 29.0 35.0 37.0 GA : 12.0 11.0 16.0 23.0 35.0 36.0 IL : 21.0 20.0 21.0 23.0 20.0 22.0 IN : 18.0 19.0 21.0 24.0 25.0 25.0 IA : 23.0 23.0 15.7 21.0 19.0 19.0 KS : 9.5 9.0 14.0 14.0 39.0 49.0 KY : 16.0 16.0 19.0 21.0 26.0 28.0 MI : 18.0 16.0 23.0 25.0 30.0 30.0 MN : 22.0 23.0 18.0 20.0 24.0 25.0 MO : 9.5 9.5 11.0 17.0 53.0 52.0 NE : 19.0 18.0 14.0 13.2 21.0 23.0 NC : 6.0 4.8 25.0 25.0 66.0 68.0 OH : 14.0 17.0 17.0 17.0 9.0 9.0 OK : 1.0 2.0 24.0 22.5 70.0 70.0 PA : 22.0 18.0 23.0 36.0 18.0 17.0 SD : 15.0 15.0 9.0 10.0 18.0 22.0 WI : 21.0 19.0 13.0 14.0 11.0 11.0 : Oth : Sts 2/ : 12.0 11.0 10.0 12.0 47.0 50.0 : US : 16.0 16.0 18.0 20.0 33.0 35.0 -------------------------------------------------------------------------------- 1/ An operation is any place having one or more hogs and pigs on hand any time during the year. Percent reflect average distributions based primarily on mid-year surveys. 2/ Individual State estimates not available for the 33 other States. Reliability of December 1 Hogs and Pigs Estimates Survey Procedures: A random sample of 17,854 U.S. producers was surveyed to provide data for these estimates. Survey procedures ensured that all hog and pig producers, regardless of size, had a chance to be included in the survey. Large producers were sampled more heavily than small operations. Data were collected from about 15,181 operations, 85.1 percent of the total sample, during the first-half of December by mail, telephone, and face-to-face personal interviews. Regardless of when operations responded, they were asked to report inventories as of December 1. Estimation Procedures: These hogs and pigs estimates were prepared by the Agricultural Statistics Board after reviewing recommendations and analysis submitted by each State office. National and State survey data were reviewed for reasonableness with each other and with estimates from past years using a balance sheet. The balance sheet begins with the previous inventory estimate, adds to it estimates of births and imports, and subtracts estimates of slaughter, exports, and deaths. This indicated ending inventory level is compared to the Agricultural Statistics Board estimate for reasonableness. Revision Policy: Revisions to previous estimates are made to improve quarter to quarter relationships. Estimates for the previous four quarters are subject to revision when current estimates are made. In December, estimates for all quarters of the current and previous year are reviewed. The reviews are primarily based on hog check-off receipts and slaughter. Estimates will also be reviewed after data from the Department of Agriculture five-year Census of Agriculture are available. No revisions will be made after that date. Reliability: Since all operations raising hogs are not included in the sample, survey estimates are subject to sampling variability. Survey results are also subject to non-sampling errors such as omissions, duplication, and mistakes in reporting, recording, and processing the data. The affects of these errors cannot be measured directly. They are minimized through rigid quality controls in the data collection process and through a careful review of all reported data for consistency and reasonableness. To assist users in evaluating the reliability of the estimates in this report, the "Root Mean Square Error" is shown for selected items in the following table. The "Root Mean Square Error" is a statistical measure based on past performance and is computed using the difference between first and final estimates. The "Root Mean Square Error" for hog inventory estimates over the past 20 quarters is 1.9 percent. This means that chances are 2 out of 3 that the final estimate will not be above or below the current estimate of 59.9 million head by more than 1.9 percent, or about 1,138,000 head. Chances are 9 out of 10 that the difference will not exceed 3.2 percent, or about 1,920,000 head (the 90 percent confidence level). Reliability of December 1 Hog Estimates 1/ -------------------------------------------------------------------------------- : : 90% : Difference Between : : : Confidence : First and Final : Number of : Root : Level : Estimates 1/ : Quarters Item : Mean :--------------------------------------------------------- : Square : : : : : : First : First : Error :Percent: (000) :Average:Smallest:Largest: Above : Below : : : Head : : : : Final : Final -------------------------------------------------------------------------------- : Percent ---------- 1,000 Head --------- Number : All Hogs & : 1.9 3.2 1,926 822 0 2,220 10 7 Pigs 2/ : : Pig Crop : 2.9 5.0 1,260 547 0 1,428 9 9 : Expected : Farrowings : : Next : 3.9 6.7 195 96 0 237 14 5 Quarter : : Following : 5.7 9.8 284 138 16 346 16 4 -------------------------------------------------------------------------------- 1/ Based on quarterly records for the past 20 quarters. 2/ No change was recorded in some quarters. Index Page Annual Farrowings, Number of Sows, Pig Crop, and Pigs Per Litter, December-November, 1996-1997, US. . . . . . . . . . . . . . 14 Farrowings, Number of Sows, Pigs Per Litter, and Pig Crop, September-November, Quarterly States. . . . . . . . . . . . 19 Farrowings, Number of Sows, Pigs Per Litter, and Pig Crop, March-May, Quarterly States . . . . . . . . . . . . . . . . 17 Farrowings, Number of Sows, Pig Crop, and Pigs Per Litter, US. . .5 Farrowings, Number of Sows, Pigs Per Litter, and Pig Crop, December-February, Quarterly States . . . . . . . . . . . . 16 Farrowings, Number of Sows, Pigs Per Litter, and Pig Crop, June-August, Quarterly States . . . . . . . . . . . . . . . 18 Hogs and Pigs Inventory Number, by Quarter, US. . . . . . . . . .4 Inventory, Total and Breeding, Market Hogs, and Market Hogs, by Weight Groups, Quarterly States, September 1 . . . . . . 12 Inventory, Total and Breeding, Market Hogs, and Market Hogs, by Weight Groups, Quarterly States, December 1. . . . . . . .6 Inventory, Total and Breeding, Market Hogs, and Market Hogs, by Weight Groups, Quarterly States, June 1. . . . . . . . . 10 Inventory, Total and Breeding, Market Hogs, and Market Hogs, by Weight Groups, Quarterly States, March 1 . . . . . . . . .8 Monthly Farrowings, Number of Sows, Pig Crop, and Pigs Per Litter, December-November, 1996-1997, US. . . . . . . . . . . . . . 20 Number of Operations with Hogs . . . . . . . . . . . . . . . . . 21 Number of Operations by Size Group, Quarterly States . . . . . . 22 Percent of Inventory by Size Group, Quarterly States . . . . . . 24 Pigs per Litter by Size of Operation, US . . . . . . . . . . . . .5 Survey and Estimation Procedures, Revision Policy and Reliability . . . . . . . . . . . . . . . . . . . . . . 26 The next "Hogs and Pigs" report will be released at 3 p.m. ET on March 27, 1998. 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