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Kansas Agricultural Experiment Station Research Reports

1997

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Articles 1 - 30 of 61

Full-Text Articles in Life Sciences

Effects Of Sorghum Genotype And Processing Method On Production Characteristics And Growth Performance Of Nursery Pigs (1997), J R. Froeschner, Z J. Cheng, Joe D. Hancock, Keith C. Behnke Jan 1997

Effects Of Sorghum Genotype And Processing Method On Production Characteristics And Growth Performance Of Nursery Pigs (1997), J R. Froeschner, Z J. Cheng, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Three sorghum varieties that varied in starch composition were fed to Phase II and Phase III pigs to determine if feeding sorghum high in waxiness provided a benefit. In addition, each variety was fed as a meal, standard pellet, and an expanded pellet. As level of waxiness increased, pellet durability index increased numerically and the amount of fines produced decreased numerically. In addition, thermal processing of the diets increased the feeding value. Sorghum genotype had little effect on pig performance.; Swine Day, Manhattan, KS, November 20, 1997

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Milking Twice Daily In The Presence Of A Cow’S Own Calf Fails To Prolong Postpartum Anestrus (1997), G.C. Lamb, J.M. Lynch, B.L. Miller, David M. Grieger, Jeffrey S. Stevenson Jan 1997

Milking Twice Daily In The Presence Of A Cow’S Own Calf Fails To Prolong Postpartum Anestrus (1997), G.C. Lamb, J.M. Lynch, B.L. Miller, David M. Grieger, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Six treatment s were initiated approximately 15 days after calving: 1) calf was weaned permanently from its dam (calf weaned; CW); 2) calf was present continuously with its dam but contact with the udder was prohibited (calf restricted; CR); 3) calf was present continuously with its dam (calf present; CP); 4) CR dam was suckled twice daily by her own calf (CR+S2x); 5) CW dam was milked twice daily (CW+M2x); 6) CR dam was milked twice daily (CR+ M2x). During the 4-week treatment period , cows in the CR+M2x treatment had twofold greater yield milk and milk components than CW+M2x …

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Use Of Video Image Analysis, Ribeye Grids, And Linear Ribeye Measurements To Predict And Compare Ribeye Areas From Carcass Left And Right Sides (1997), A.T. Waylan, R.E. Campbell, John A. Unruh Jan 1997

Use Of Video Image Analysis, Ribeye Grids, And Linear Ribeye Measurements To Predict And Compare Ribeye Areas From Carcass Left And Right Sides (1997), A.T. Waylan, R.E. Campbell, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

Ribeye tracings from 265 beef carcasses were used to compare ribeye areas from right and left sides. When video image analysis (VIA) was used to determine ribeye area, no difference (P=.48) was observed between right and left sides. However, when ribeye area was determine d by using USDA grids, those on the left side were slightly larger (P<.01) than those on right side. This difference is negligible considering the wide rang e in variation (SD=.68 in2) between right and left side ribeye areas. Ribeye area correlations between VIA and grid result s were high for both right (.96) and left (.95) sides. Linear measures (length, midwidth, and widest width) of ribeyes predicted ribeye area with reasonable accuracy ( R2=.90 and .91). These methods provide several options to determine ribeye area. However, data collectors need to realize that the difference between right and left side ribeye areas may be a greater variable than the sensitivity of the method used.

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Economic Impact Of Preweaning Vaccinations On Health And Performance Of Weaned Feeder Cattle (1997), J.M. Lynch, P.L. Houghton, L.R. Corah, Gerald L. Stokka Jan 1997

Economic Impact Of Preweaning Vaccinations On Health And Performance Of Weaned Feeder Cattle (1997), J.M. Lynch, P.L. Houghton, L.R. Corah, Gerald L. Stokka

Kansas Agricultural Experiment Station Research Reports

In October, 1995, 3,565 head of freshly weaned, British-breed calves were received into a weaning facility in southwest Nebraska. Calves were determined to be preconditioned if they had received both viral an d Pasteurella vaccines prior to weaning (PREWEAN; n = 2,315), and all other calves were considered to have no preconditioning (CRTL; n = 1,250). Cattle were processed within 24 hours of arrival, and booster vaccinations were given when appropriate. Average days on feed at the weaning facility were similar between PREWEAN and CTRL calves (52.4 and 50.3 days, respectively), but average daily gain (2.24 vs 1.87 kb) and …

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Effects Of Dietary Energy Density And Lysine:Calorie Ratio On The Growth Performance Of Growing Pigs And Subsequent Finishing Performance (1997), J W. Smith Ii, P R. O'Quinn, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1997

Effects Of Dietary Energy Density And Lysine:Calorie Ratio On The Growth Performance Of Growing Pigs And Subsequent Finishing Performance (1997), J W. Smith Ii, P R. O'Quinn, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

One hundred twenty crossbred gilts were used in a growth trial to evaluate the effects of increasing dietary energy density and lysine:calorie ratio on growing pig growth performance and subsequent finishing performance. Feeding 3% choice white grease and 3.45 g lysine:Mcal ME maximized growth performance of growing gilts. Choice white grease additions and increasing lysine:calorie ratio during growing (65 to 160 lb) did not affect carcass back fat or loin depth at 235 lb.; Swine Day, Manhattan, KS, November 20, 1997

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Determining The Optimal Tryptophan:Lysine Ratio For The Segregated Early-Weaned Pigs (25 To 50 Lb) (1997), J A. Loughmiller, D A. Knabe, K Hongtrakul, S Moser, C Civis, P R. O'Quinn, J W. Smith Ii, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband Jan 1997

Determining The Optimal Tryptophan:Lysine Ratio For The Segregated Early-Weaned Pigs (25 To 50 Lb) (1997), J A. Loughmiller, D A. Knabe, K Hongtrakul, S Moser, C Civis, P R. O'Quinn, J W. Smith Ii, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A 21 d growth trial was conducted to evaluate the effects of increasing the apparent digestible tryptophan:lysine ratio on growth performance of the 25 to 50 lb pig raised in a high-health, segregated early-weaning (SEW) system. Ten diets were fed with two levels of lysine (.75% and 1.10% apparent digestible lysine) and five apparent digestible tryptophan levels (13, 16, 19, 22, or 25% of lysine). Feeding the high dietary lysine consistently improved ADG and FIG and reduced ADFI. Increasing the tryptophan: lysine ratio did not improve overall performance. Based upon our results, the dietary tryptophan level to maximize growth performance …

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Roundup 1997 Jan 1997

Roundup 1997

Kansas Agricultural Experiment Station Research Reports

Roundup is the major beef cattle education and outreach event sponsored by the Agricultural Research Center-Hays. The purpose is to communicate timely, applicable research information to producers and extension personnel. The research program of the Agricultural Research Center-Hays is dedicated to serving the people of Kansas by developing new knowledge and technology to stabilize and sustain long-term production of food and fiber in a manner consistent with conservation of natural resources, protection of the environment, and assurance of food safety. Primary emphasis is on production efficiency through optimization of inputs in order to increase profit margins for producers in the …

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Influence Of Dietary Tryptophan Levels On The Growth Performance Of Segregated Early-Weaned Pigs (10 To 20 Lb) (1997), J A. Loughmiller, D A. Knabe, K Hongtrakul, P R. O'Quinn, S Moser, J W. Smith Ii, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach Jan 1997

Influence Of Dietary Tryptophan Levels On The Growth Performance Of Segregated Early-Weaned Pigs (10 To 20 Lb) (1997), J A. Loughmiller, D A. Knabe, K Hongtrakul, P R. O'Quinn, S Moser, J W. Smith Ii, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

A total of 360 pigs (averaging 13 d of age and 9.4 lb) was used to determine the effects of increasing dietary tryptophan:lysine ratio on the growth performance of segregated early-weaned (SEW) pigs. Two apparent digestible lysine levels (1. 15 and 1.50 %) and six apparent digestible tryptophan: lysine ratios (12.5, 15, 17.5, 20, 22.5 and 25%) were fed from d 0 to 16 after weaning. Lysine x tryptophan interactions were observed for ADG and F/G. Increasing the tryptophan: lysine ratio in the low lysine diets improved ADG and F/G in a quadratic manner. Increasing the tryptophan level had no …

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Liquid Smoke Effects On Escherichia Coli O157:H7 In Beef Trimmings And Ground Beef Patties (1997), R. Estrada-Munoz, Elizabeth A.E. Boyle, James L. Marsden Jan 1997

Liquid Smoke Effects On Escherichia Coli O157:H7 In Beef Trimmings And Ground Beef Patties (1997), R. Estrada-Munoz, Elizabeth A.E. Boyle, James L. Marsden

Kansas Agricultural Experiment Station Research Reports

Liquid smoke (LS) reduce d Escherichia coli O157:H7 counts in inoculated beef trimmings and ground beef patties. The counts were reduced (P<.05) by .5 log 10 cfu/g immediately after beef trimmings were treated with 8% LS and by 1.2, 2.0, 1.6, and 2.3 log 10 cfu/g after the trimmings were formed into patties and tested or stored under refrigeration for 1, 2, and 3 days, respectively (2 log10 reduction represents 99%) Thus, LS could make beef-containing products safer with respect to foodborne pathogens.

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Antioxidant Properties Of Liquid Smoke In Precooked Beef Patties (1997), R. Estrada-Munoz, Elizabeth A.E. Boyle, James L. Marsden Jan 1997

Antioxidant Properties Of Liquid Smoke In Precooked Beef Patties (1997), R. Estrada-Munoz, Elizabeth A.E. Boyle, James L. Marsden

Kansas Agricultural Experiment Station Research Reports

Liquid smoke (LS) effectiveness in controlling lipid oxidation and warmed-over flavor (WOF) in beef was investigated. Aroma scores, "α-thiobarbituri c acid (TBA) numbers, and pH values were lower (P<.05) in LS-treated beef patties than in patties without LS. LS has useful antioxidative properties in precooked ground beef patties at the normally recommended percentage of 1.5%. That should reduce undesirable flavor development and product loss.

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Delineation Of Geographic Markets For Fed Cattle (1997), Ted C. Schroeder Jan 1997

Delineation Of Geographic Markets For Fed Cattle (1997), Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Determining the extent of geographic markets for fed cattle is important for monitoring performance of the industry. The ability of packing plants to influence prices is determined in part by their ability to segment the market for fed cattle and isolate themselves from plants in other regions. This study analyzed transaction data from 43 U.S. steer and heifer slaughter plants collected by the Grain Inspection Packers and Stockyards Program for approximately a 1-year period during 1992-93. Beef packers procured an average of 64% of their cattle within 75 miles of packing plants, 82 % within 150 miles, and 92% within …

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A Survey Of Purchasers Of Wheat Middlings: Storage, Feeding Practices, And Problems (1997), G.W. Warmann, Keith C. Behnke, Dale A. Blasi Jan 1997

A Survey Of Purchasers Of Wheat Middlings: Storage, Feeding Practices, And Problems (1997), G.W. Warmann, Keith C. Behnke, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

We surveyed 290 purchasers of wheat middlings (WM) from a single flour mill located in central Kansas to characterize the incidence of transport and storage problems and to determine intended animal us e and method of feeding. Over 30% of the 106 respondents had encountered storage problems with WM; mold, spoilage, and bridging in the storage structure were the most common. Over 75% of the respondents who reported no storage problems purchased WM during the winter months and avoided WM purchases at other times, especially during the summer.

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Agronomic And Silage Quality Traits Of Forage Sorghum Cultivars In 1995 (1997), M.K. Siefers, J.E. Turner, G.L. Huck, S.A. Anderson, K.K. Bolsen, Matthew A. Young, Ronald V. Pope Jan 1997

Agronomic And Silage Quality Traits Of Forage Sorghum Cultivars In 1995 (1997), M.K. Siefers, J.E. Turner, G.L. Huck, S.A. Anderson, K.K. Bolsen, Matthew A. Young, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Agronomic and silage quality traits were measure d for 37 forage sorghum cultivars and three grain sorghum hybrids. The 1995 growing season was characterized by above average rainfall in the spring and early summer, and a hard freeze on September 22. At the time of the freeze, 20 cultivars had reached the early-milk to early-dough stage, 12 were in the bloom stage, and the remaining eight were still in the early- to late-boot stage . The late planting date and low plant populations resulted in below-normal whole-plant D M and grain yields. Plant height s for the grain sorghums were …

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Reproductive Performance Of Replacement Heifers Implanted As Young Calves Or At Weaning (1997), L.R. Corah, A.R. Spell, D.L. Cook, M.D. Butine, K. Anderson, David M. Grieger Jan 1997

Reproductive Performance Of Replacement Heifers Implanted As Young Calves Or At Weaning (1997), L.R. Corah, A.R. Spell, D.L. Cook, M.D. Butine, K. Anderson, David M. Grieger

Kansas Agricultural Experiment Station Research Reports

This study evaluated the effect of implanting potential replacement heifers (n=548) with Component E-C® (10 mg of estradiol and 100 mg of progesterone) between 45 and 120 days of age or at weaning (200 days of age) on future reproductive performance. Trials were conducted at five ranches in Kansas and one in Nebraska. At each location, heifers were allotted to three treatments: no implant (Control), one implant at 45 to 120 days of age (Early- IMP), or one implant at 2 00 days of age (Wean- IMP). No differences were detected among treatments for first service conception rate (55%), overall …

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Effects Of Poultry Fat And Choice White Grease On Finishing Pig Growth Performance, General Carcass Characteristics, And Pork Longissimus Muscle Quality (1997), J J. Engel, J W. Smith Ii, Robert D. Goodband, John A. Unruh, Michael D. Tokach, Jim L. Nelssen Jan 1997

Effects Of Poultry Fat And Choice White Grease On Finishing Pig Growth Performance, General Carcass Characteristics, And Pork Longissimus Muscle Quality (1997), J J. Engel, J W. Smith Ii, Robert D. Goodband, John A. Unruh, Michael D. Tokach, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Eighty-four crossbred gilts were used to exan1ine the effects of increasing dietary additions of poultry fat (PF) or choice white grease (CWG) on finishing pig growth performance, standard carcass characteristics, and longissimus muscle quality. Increasing CWG or PF improved feed efficiency. Increasing CWG tended to increase then decrease longissimus muscle visual color compared with longissimus muscles from those animals fed PF. Pigs fed CWG had firmer, less exudative, and more purplish-red (measured by a Minolta chronometer) longissimus muscles compared with pigs fed PF. Feeding CWG or PF did not affect standard carcass traits and had minimal effects on longissimus muscle …

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Effects Of Low-Protein, Amino Acid-Fortified Diets, Formulated On A Net Energy Basis, On The Growth Performance And Carcass Characteristics Of Finishing Pigs (1996), J W. Smith Ii, P R. O'Quinn, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1997

Effects Of Low-Protein, Amino Acid-Fortified Diets, Formulated On A Net Energy Basis, On The Growth Performance And Carcass Characteristics Of Finishing Pigs (1996), J W. Smith Ii, P R. O'Quinn, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Two hundred eighty-eight gilts were used to determine the effects of corn-soybean meal or low-protein, amino acid-fortified diets, formulated on a net energy (NE) basis on growth perforn1ance and carcass characteristics. Pigs fed high NE grew faster from 105 to 165 lb. However, pigs fed diets with intact protein grew faster and more efficiently during the finishing period and for the entire trial than those fed low protein, amino acidfortified diets. Carcass data revealed that pigs consuming high NE were fatter and had lower percentage lean than pigs consuming low NE. Additionally, longissimus muscle area tended to be greater in …

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Effects Of A High Protein, Whey Protein Concentrate And Spray-Dried Animal Plasma On Growth Performance Of Weanling Pigs (1997), G S. Grinstead, J C. Woodworth, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1997

Effects Of A High Protein, Whey Protein Concentrate And Spray-Dried Animal Plasma On Growth Performance Of Weanling Pigs (1997), G S. Grinstead, J C. Woodworth, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

A 35-d experiment was conducted to compare the effects of increasing spray-dried animal plasma and a high protein whey concentrate (73% CP) on starter pig performance. Spray-dried animal plasma and whey protein concentrate replaced dried skin1 milk on an equal lysine basis. Pigs fed increasing spray-dried animal plasma protein had increased ADG and ADFI from d 0 to 7 after weaning, but not for any other period in the study. Increasing whey protein concentrate had no effect on growth perforn1ance in relation to the pigs fed dried skim milk.; Swine Day, Manhattan, KS, November 20, 1997

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Effects Of Starch Gelatinization On Weanling Pig Performance (1997), K Hongtrakul, J R. Bergstrom, W B. Nessmith Jr, I H. Kim, Robert D. Goodband, Keith C. Behnke, Jim L. Nelssen, Michael D. Tokach Jan 1997

Effects Of Starch Gelatinization On Weanling Pig Performance (1997), K Hongtrakul, J R. Bergstrom, W B. Nessmith Jr, I H. Kim, Robert D. Goodband, Keith C. Behnke, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Two hundred and ten weanling pigs were fed diets containing nonextruded corn (14.5% gelatinization; control) or corn that was extruded to provide 38.7%, 52.7%, 64.4%, or 89.3% starch gelatinization in the complete diet. With increasing gelatinization, ADG and ADFI decreased and then increased. but apparent digestibility of DM, CP, and energy increased then decreased. These results suggest that the degree of starch gelatinization has an inconsistent effect on weanling pig performance.; Swine Day, Manhattan, KS, November 20, 1997

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Effects Of Source And Level Of Added Chromium On Growth Performance Of Starter Pigs (1997), P R. O'Quinn, R E. Musser, K Q. Owen, S A. Blum, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband Jan 1997

Effects Of Source And Level Of Added Chromium On Growth Performance Of Starter Pigs (1997), P R. O'Quinn, R E. Musser, K Q. Owen, S A. Blum, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A 35-d growth trial was conducted with conventionally weaned nursery pigs to evaluate the efficacy of supplemental chromium (Cr) as either chromium nieotinate (CrNic) or chromium picolinate (CrPic). Neither source nor level of supplemental Cr had any effect on weanling pig growth performance or immune status. Equal levels of CrNic and CrPic produced similar results, except that pigs fed CrPic had higher serum Cr concentrations than pigs fed CrNic. These data suggest no beneficial responses to supplemental CrNic or CrPic in nursery pig diets.; Swine Day, Manhattan, KS, November 20, 1997

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Pyridoxine, But Not Thiamin, Improves Growth Performance Of Weanling Pigs (1997), J C. Woodworth, R E. Musser, J A. Loughmiller, S A. Moser, G S. Grinstead, P R. O'Quinn, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1997

Pyridoxine, But Not Thiamin, Improves Growth Performance Of Weanling Pigs (1997), J C. Woodworth, R E. Musser, J A. Loughmiller, S A. Moser, G S. Grinstead, P R. O'Quinn, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to determine whether pyridoxine or thiamine needs to be added to the diet for weanling pigs. In the first trial, weanling pigs were fed either a control diet or diets containing added thiamin (2.5 or 5.0 g/ton) or pyridoxine (3.5 or 7.0 g/ton). From d 0 to 14 after weaning, pigs fed added pyridoxine had increased ADG and ADFI, with pigs fed 3.5 g/ton of added pyridoxine having the greatest response. Growth performance was not improved by added thiamin. In a second trial, weanling pigs were fed a control diet or diets containing 1, 2, 3, …

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Effects Of Tetracycline On Shedding Of Susceptible And Resistant Salmonella Spp. Experimentally Inoculated Into Pigs (1997), K M. Claussen, D R. Hyatt, J C. Galland, Jerome C. Nietfeld, J M. Sargeant, Steven S. Dritz Jan 1997

Effects Of Tetracycline On Shedding Of Susceptible And Resistant Salmonella Spp. Experimentally Inoculated Into Pigs (1997), K M. Claussen, D R. Hyatt, J C. Galland, Jerome C. Nietfeld, J M. Sargeant, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

The objective of this experiment was to study the influence of tetracycline on the transfer of antibiotic resistance in an in vivo swine model experimentally infected with antibiotic-resistant and antibiotic susceptible Salmonella spp. Tetracycline reduced the amount and duration of shedding of tetracycline- susceptible Salmonella. However, tetracycline had no effect on shedding of resistant Salmonella. We also have evidence that resistance was transferred from the resistant to the susceptible strain of Salmonella.; Swine Day, Manhattan, KS, November 20, 1997

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Effects Of Time Of Introduction And Level Of Soybean Meal On Performance Of Segregated Early-Weaned Pigs (1997), P R. O'Quinn, J R. Bergstrom, J A. Loughmiller, K Hongtrackul, R E. Musser, C A. Civis, C J. Maxwell, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband Jan 1997

Effects Of Time Of Introduction And Level Of Soybean Meal On Performance Of Segregated Early-Weaned Pigs (1997), P R. O'Quinn, J R. Bergstrom, J A. Loughmiller, K Hongtrackul, R E. Musser, C A. Civis, C J. Maxwell, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A growth trial was conducted utilizing segregated early weaned (SEW) pigs to evaluate the effects of time of introduction and level of soybean meal on growth performance. Few differences were observed in growth performance indicating that including up to 40% soybean meal in the diet will not adversely affect growth of high-health status, SEW-reared pigs.; Swine Day, Manhattan, KS, November 20, 1997

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Puberty Induction In Young Gilts: Ovarian, Uterine, And Pregnancy Responses (1997), J Guo, David M. Grieger, Duane L. Davis Jan 1997

Puberty Induction In Young Gilts: Ovarian, Uterine, And Pregnancy Responses (1997), J Guo, David M. Grieger, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

The age of gilts when their first litter is produced affects reproductive efficiency and the applications of biotechnologies such as in vitro fertilization and genetic engineering. Therefore, we evaluated the effect of age on response to puberty induction in gilts. Gilts were injected with PG600® followed 96 h later with human chorionic gonadotropin to induce follicular growth and ovulation, respectively. In the first experiment, 84-, 104-,124-, 144-, and 164-d-old gilts were used. For treated gilts, uterine weight, uterine length, number of corpora lutea (CL), peripheral progesterone (P4), and estradiol (~) increased (P<.05) linearly with age. Uterine luminal prostaglandins (PGs) PGE and PGF decreased for gilts treated at 124 d of age or older. The second experiment evaluated pregnancy success for gilts induced to ovulate at 116 vs 151 d of age. The effects of induction of two consecutive estrous cycles also were evaluated. Two of seven (28.6%) and four of nine (44.4%) gilts first treated when 116 and 151 d old but none of seven gilts treated at both 96 and 116 d of age were pregnant 60 d postinseillination. Results indicated that induction of a prior cycle did not inlprove pregnancy rates. However, some gilts in this population maintained pregnancies to 60 d when induced to ovulate and inseminated at 120 d of age.; Swine Day, Manhattan, KS, November 20, 1997

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Effects Of Additional L-Carnitine During Lactation On Sow And Litter Performance Of First Parity Gilts (1997), R E. Musser, C A. Civis, S A. Blum, K Q. Owen, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen Jan 1997

Effects Of Additional L-Carnitine During Lactation On Sow And Litter Performance Of First Parity Gilts (1997), R E. Musser, C A. Civis, S A. Blum, K Q. Owen, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of 107 first parity gilts was used to determine the effects of 50 ppm of added L-carnitine during lactation on sow and litter performance. At farrowing, gilts were fed a milo-soybean meal diet with or without 50 ppm of added L-carnitine. No differences were observed in litter weaning weight or weight gain or changes in sow weight and last rib fat depth during lactation. Although sows fed additional L-carnitine had lower average daily feed intake the first week of lactation, no differences were observed during the second week or in overall average daily feed intake. These results suggest …

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Effects Of L-Carnitine On Performance Of Gestating And Lactating Sows (1997), R E. Musser, K Q. Owen, S A. Blum, C A. Civis, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 1997

Effects Of L-Carnitine On Performance Of Gestating And Lactating Sows (1997), R E. Musser, K Q. Owen, S A. Blum, C A. Civis, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 307 sows was used to determine the effects of adding 50 ppm of L-carnitine in gestation and lactation diets on sow and litter performance. Addition of 50 ppm L-carnitine in gestation increased both total litter (34.1 vs 32.1 lb) and pig (3.48 vs 3.27 lb) birth weight. Litter weaning weights increased (99.03 vs 90.71 lb) when sows were fed added L-carnitine during gestation. Sows fed added L-carnitine in gestation had increased IGF-I concentrations on d 60 and 90 (71.3 vs 38.0, and 33.0 vs 25.0 ng/ml, respectively). These results suggest that feeding 50 ppm of added L-carnitine …

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Effects Of Increased Feed Intake Or Additional Corn From Day 30 To 50 Of Gestation On Performance Of Sows And Growth Performance And Carcass Characteristics Of Offspring (1997), R E. Musser, J S. Bauman, M Heintz, Robert D. Goodband, Duane L. Davis, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 1997

Effects Of Increased Feed Intake Or Additional Corn From Day 30 To 50 Of Gestation On Performance Of Sows And Growth Performance And Carcass Characteristics Of Offspring (1997), R E. Musser, J S. Bauman, M Heintz, Robert D. Goodband, Duane L. Davis, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 321 PIC sows was used to determine the effects of either increased feed (8 Ib/d of complete feed) or added corn (4 Ib/d of complete feed plus 4 Ib/d of ground corn) from d 30 to 50 of gestation on sow and offspring performance. Sows fed increased feed intake from d 30 to 50 of gestation had fewer pigs born live than control sows; however this decrease was not observed for sows fed ground corn. Increased complete diet feed intake from d 30 to 50 of gestation resulted in heavier offspring at slaughter, with offspring from sows …

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Fetal And Maternal Responses To High Feed Intake From Day 29 To 45 Of Gestation (1997), R E. Musser, J W. Smith Ii, L L. Burum, C J. Samland, Duane L. Davis, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Theresa J. Rathbun, Steven S. Dritz Jan 1997

Fetal And Maternal Responses To High Feed Intake From Day 29 To 45 Of Gestation (1997), R E. Musser, J W. Smith Ii, L L. Burum, C J. Samland, Duane L. Davis, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Theresa J. Rathbun, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Parity-four sows were fed either 4.0 Ib/d (control, n = 6) or 14.0 Ib/d (high, n = 9) of feed from d 29 to 45 of gestation. On d 45 of ges~tion, sows were slaughtered and uteri collected for fetal and placental measurements. High-feed-intake sows gained more weight from. d 29 to 45 compared to control sows. Providing feed in excess of established requirements to gestating sows from d 29 to 45 of gestation increased IGF-I concentrations in maternal plasma and decreased crown-rump length variation of the fetus. Increased feed intake resulted in a removal of the correlation between average …

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Summary Of Kansas State University Swine Enterprise Record 1997, Michael R. Langemeier, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen Jan 1997

Summary Of Kansas State University Swine Enterprise Record 1997, Michael R. Langemeier, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

The Kansas Swine Enterprise Record Program evaluates biological and economic performance and is part of a cooperative record- keeping project with Extension personnel and swine producers in Kansas. Nebraska, and South Dakota. From January 1 to December 31, 1996, profit per cwt of pork produced by these producers (13 semiannual and 18 annual data) averaged $10.62 for the last 6 months of 1996 and $8.08 for the entire year. Producers in the top one-third in terms of profitability had average profits of $15.11 per cwt, whereas producers in the bottom one-third had average profits of $.73 per cwt for the …

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Trends In The Swine Industry: Productivity Measures (1997), Kevin C. Dhuyvetter, J L. Parcell Jan 1997

Trends In The Swine Industry: Productivity Measures (1997), Kevin C. Dhuyvetter, J L. Parcell

Kansas Agricultural Experiment Station Research Reports

Productivity has been trending up in the swine industry over the last 15 years. Much of the increased productivity is due to increased pigs/litter and increased market weights. The efficiency of the breeding herd (litters/sow/year) has been trending up in the U.S. but has remained relatively constant in Kansas.; Swine Day, Manhattan, KS, November 20, 1997

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Trends In The Swine Industry: Operations And Marketings (1997), J L. Parcell, Kevin C. Dhuyvetter Jan 1997

Trends In The Swine Industry: Operations And Marketings (1997), J L. Parcell, Kevin C. Dhuyvetter

Kansas Agricultural Experiment Station Research Reports

Trends in the size of swine operations in Kansas and the V. S. are toward fewer and larger operations. The number of operations in Kansas and the U.S. continues to decline; however, the number of hogs marketed has increased because of an increase in operation size. Kansas producers have increased operation size at a slower rate compared to U.S. producers. Kansas ranks tenth nationally in hogs marketed. A migration of swine production from eastern, central, and northern Kansas to southwest Kansas has occurred in the past 5 years.; Swine Day, Manhattan, KS, November 20, 1997

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