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Browsing Academic Colleges and Departments by Author "Usry, J.L."

Now showing items 1-19 of 19

Determining the effect of the ratio of tryptophan to large neutral amino acids on the growth performance of finishing pigs

Nitikanchana, S.; Tokach, M.D.; Dritz, S.S.; Usry, J.L.; DeRouchey, J.M.; Goodband, R.D.; Bergstrom, J.R.; Nelssen, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2011)

A total of 96 pigs (PIC TR4 × 1050; initially 77.4 lb) were used in 2 14-d studies to determine the effect of standardized ileal digestible (SID) tryptophan to large neutral amino acids (LNAA) ratio on growth performance ...
Determining the effects of standardized ileal digestible tryptophan:lysine ratio and tryptophan source in diets containing dried distillers grains with solubles on growth performance and carcass characteristics of finishing pigs

Nitikanchana, S.; Tokach, M.D.; Dritz, S.S.; Usry, J.L.; Goodband, R.D.; DeRouchey, J.M.; Nelssen, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2012)

A total of 2,290 pigs (PIC 1050 × 337; initially 157 lb) were used to determine the effect of tryptophan source (L-tryptophan vs. soybean meal) and increasing SID tryptophan:lysine ratio in diets containing 30% dried ...
Determining the effects of tryptophan:lysine ratio in diets containing dried distillers grains with solubles on growth performance of finishing pigs

Nitikanchana, S.; Tokach, M.D.; Dritz, S.S.; Usry, J.L.; Goodband, R.D.; DeRouchey, J.M.; Nelssen, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2011)

A total of 1,235 pigs (PIC 1050 × 337; initially 149 lb) were used in a 71-d study to determine the effects of tryptophan:lysine ratio in diets containing 0, 20, or 40% dried distillers grains with solubles (DDGS) on ...
Determining the effects of tryptophan:lysine ratios in diets containing 30% dried distillers grains with solubles on growth performance of 157- to 285-lb pigs

Nitikanchana, S.; Tokach, M.D.; Usry, J.L.; Dritz, S.S.; Boyd, R.D.; Zier-Rush, C.E.; McGrath, M. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2011)

A total of 2,298 pigs (half gilts and half barrows, PIC TR4 × 1050; initially 157 lb) were used in a 52-d study to determine the effects of increasing tryptophan:lysine ratios in diets containing 30% dried distillers ...
Effect of increased dietary lysine on growth performance of gilts fed ractopamine HCL (paylean1) in a commercial facility

Neill, C.R.; Dritz, S.S.; Tokach, M.D.; Goodband, R.D.; Nelssen, J.L.; DeRouchey, J.M.; Hastad, C.W.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2006)

A total of 1,915 gilts (PIC L337 × C22) were used in two 21-d experiments in a commercial research barn to evaluate the effects of lysine rates on pig growth and carcass performance when fed ractopamine HCl. There were 7 ...
Effects of increasing crystalline amino acids and the subsequent change in diet net energy on growing pig performance

Tokach, M.D.; Steidinger, M.U.; Dritz, S.S.; DeRouchey, J.M.; Goodband, R.D.; Nelssen, J.L.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2003)

Three individual trials were conducted to evaluate the effect of increasing the amount of crystalline amino acids (L-lysine, L threonine, and DL-methionine) as a replacement for soybean meal in the diet on pig growth ...
Effects of increasing crystalline lysine and dietary fat on finishing pig growth performance

Tokach, M.D.; Main, R.G.; Dritz, S.S.; DeRouchey, J.M.; Goodband, R.D.; Nelssen, J.L.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2003)

A total of 1,024 barrows (each initially 157 lb, PIC L337 x C22) were used in a 28-d study to evaluate the effects of increased crystalline amino acids (none versus 4.5 lb/ton of L-lysine HCl plus L-threonine to maintain ...
Effects of increasing dietary lysine in phase ii diets (15- to 25-lb) on nursery pig growth performance

Tokach, M.D.; Dritz, S.S.; DeRouchey, J.M.; Goodband, R.D.; Nelssen, J.L.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2003)

A total of 1,260 weanling pigs (initially 18.6 lb) was used in a 19 d growth assay (d 10 to 29 after weaning) to determine the effects of increasing lysine in Phase II diets on nursery pig growth performance. All pigs were ...
Effects of increasing dietary lysine in transition diets on nursery pig growth performance

DeRouchey, J.M.; Dritz, S.S.; Tokach, M.D.; Goodband, R.D.; Nelssen, J.L.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2003)

A total of 1,400 weanling pigs (initially 13.6 lb) was used in a 9 d growth assay (d 4 to 13 postweaning) to determine the effects of increasing lysine in the transition diet on nursery pig growth performance. All pigs ...
Effects of increasing dietary lysine on growth performance of pigs fed ractopamine HCl (paylean®)

Neill, C.R.; Dritz, S.S.; Tokach, M.D.; Goodband, R.D.; Nelssen, J.L.; DeRouchey, J.M.; Hastad, C.W.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2005)

A total of 919 gilts (PIC L337 × C22) were used in a 21-d trial conducted in a commercial research facility to determine growth and carcass effects of ractopamine HCl (Paylean®; 6.5 g/ton) and different levels of lysine. ...
Effects of porcine circovirus type 2 vaccination on nursery and finishing pig performance under a PRRS challenge

Shelton, N.W.; Tokach, M.D.; Dritz, S.S.; Goodband, R.D.; Nelssen, J.L.; DeRouchey, J.M.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2009)

A total of 2,571 barrows and gilts (PIC 337 × 1050) were used to determine the effects of porcine circovirus type 2 vaccine (PCV2) on nursery and finishing pigs that were challenged with porcine respiratory and reproductive ...
Effects of porcine circovirus type 2 vaccine and increasing standardized ileal digestible lysine:calorie ratio on growth performance and carcass composition of growing and finishing pigs

Shelton, N.W.; Tokach, M.D.; Dritz, S.S.; Goodband, R.D.; Nelssen, J.L.; DeRouchey, J.M.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2009)

A series of 4 experiments was conducted to determine the effect of porcine circovirus type 2 (PCV2) vaccination on the lysine requirement of growing and finishing pigs. Experiments 1 and 2 evaluated the requirement for 85- ...
Effects of replacing soybean meal with high- protein dried distillers grains with solubles on growth performance, carcass characteristics, and carcass fat quality in finishing pigs

Goehring, D.L.; Tokach, M.D.; Nelssen, J.L.; DeRouchey, J.M.; Goodband, R.D.; Dritz, S.S.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2012)

A total of 204 barrows and gilts (PIC, 337 × 1050, initially 129.6 lb) were used in a 73-d study to determine the effects of replacing soybean meal (SBM) with high-protein dried distillers grains with solubles (HPDDGS) ...
Evaluation of the optimal true-ileal-digestible lysine and threonine requirement for nursery pigs

Lenehan, N.A.; Tokach, M.D.; Dritz, S.S.; Usry, J.L.; Goodband, R.D.; DeRouchey, J.M.; Nelssen, J.L.; Hastad, C.W. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2004)

A total of 1800 pigs (Exp 1, 360; Exp. 2, 1440) were used in two experiments to evaluate the true ileal digestible (TID) lysine and threonine requirement for 24- to 44-lb pigs. In Exp. 1, there were eight pens per treatment, ...
The optimal true ileal digestible lysine and threonine requirement for nursery pigs between 25 and 55 lb

Lenehan, N.A.; Tokach, M.D.; Goodband, R.D.; Nelssen, J.L.; Dritz, S.S.; DeRouchey, J.M.; Usry, J.L.; Hastad, C.W.; Barker, M.R.; Frantz, N.Z.; Groesbeck, C.N.; James, B.W.; Keegan, T.P.; Lawrence, K.R.; Young, M.G. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2003)

A total of 360 pigs (initially 22.2 lb and 31 d of age) was used in a 21-d growth assay. This trial was conducted as a combination of two separate trials in order to simultaneously examine both the true ileal digestible ...
The optimal true ileal digestible lysine requirement for 22 to 45 lb pigs

Lenehan, N.A.; Dritz, S.S.; Tokach, M.D.; Goodband, R.D.; Nelssen, J.L.; DeRouchey, J.M.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2003)

A total of 1,440 pigs (initially 22.5 lb and 21 d after weaning) was used in a 21-d growth assay to determine the optimal lysine level to maximize growth performance of 22- to 45-lb pigs. Pigs were fed one of five dietary ...
The optimal true ileal digestible lysine requirement for nursery pigs between 27 to 44 lb

James, B.W.; Tokach, M.D.; Goodband, R.D.; Nelssen, J.L.; Dritz, S.S.; Hastad, C.W.; Lawrence, K.R.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2002)

A 20-d growth assay was conducted to determine the appropriate true ileal digestible lysine requirement to maximize growth performance of pigs between 27 to 44 lb. The basal diet (1.0% true ileal digestible lysine; 20.1% ...
The optimal true ileal digestible threonine requirement for nursery pigs between 24 to 49 lb

James, B.W.; Tokach, M.D.; Goodband, R.D.; Dritz, S.S.; Nelssen, J.L.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2002)

A 22-d growth assay was conducted to determine the appropriate true ileal digestible threonine requirement to maximize growth performance of pigs between 24 and 49 lb. The 10 experimental treatments consisted of two basal ...
The optimal true-ileal-digestible lysine and threonine requirements for growing-finishing pigs from 80 to 130 and 170 to 230 pounds

Frantz, N.Z.; Tokach, M.D.; Goodband, R.D.; Nelssen, J.L.; Dritz, S.S.; DeRouchey, J.M.; Usry, J.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2004)

A total of 4388 pigs (PIC 337 × C22; Exp. 1: 1070 gilts, initially 79 lb BW; Exp. 2: 3318 pigs, initially 170 lb BW) were used in 28-d growth assays to examine both the true-ileal-digestible (TID) lysine and threonine ...

Now showing items 1-19 of 19

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Browsing Academic Colleges and Departments by Author "Usry, J.L."

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