The effect of dietary threonine on growing pig growth performance
dc.citation.epage | 90 | en_US |
dc.citation.spage | 88 | en_US |
dc.contributor.author | Friesen, K.G. | |
dc.contributor.author | Richert, B.T. | |
dc.contributor.author | Laurin, J.L. | |
dc.contributor.author | Weeden, T.L. | |
dc.contributor.author | Nelssen, Jim L. | |
dc.contributor.author | Goodband, Robert D. | |
dc.contributor.authoreid | jnelssen | en_US |
dc.contributor.authoreid | goodband | en_US |
dc.date.accessioned | 2010-02-11T22:34:28Z | |
dc.date.available | 2010-02-11T22:34:28Z | |
dc.date.issued | 2010-02-11T22:34:28Z | |
dc.date.published | 1992 | en_US |
dc.description.abstract | Sixty pigs (initially 68.57 lb BW) were used in a 28-d growth trial to determine the effect of increased dietary threonine on growth performance for the grower pig. The basal diet was formulated with corn and peanut meal to contain 1.00% dietary lysine and .40% dietary threonine. Sucrose was replaced by synthetic threonine to give dietary threonine levels of .50, .60, .70, and .80%. Two pigs were housed per pen for a total of six pens per treatment (12 pigs per treatment). Pig weights and feeder weights were recorded weekly to determine ADG, ADFI, and feed efficiency. On d 14 and 28 of the eXPeriment, serum samples were collected to determine serum urea N concentrations. From d 0 to 14, ADG increased quadratically and feed efficiency improved linearly and quadratically as dietary threonine increased. Average daily feed intake was not affected by dietary treatment. From d 14 to 28, ADG, ADFI, and feed efficiency were not affected by increased dietary threonine. Cumulative (d 0 to 28) ADG and ADFI were not significantly influenced by dietary treatment. However, ADG improve by 17% when dietary threonine was increased from .40 to .50%. Feed efficiency improved linearly and quadratically when dietary threonine was increased and was optimized between .50 and .60% dietary threonine (approximately 10 to 12 g/d) from d 0 to 28. Serum urea N was decreased as dietary threonine increased. Pigs fed .60% dietary threonine had the lowest serum urea N concentrations compared to the other treatments. These data suggest that the grower pig requires dietary threonine at approximately .50 to .60% (10 to 11 g/d) to optimize growth performance. | en_US |
dc.description.conference | Swine Day, Manhattan, KS, November 19, 1992 | en_US |
dc.identifier.uri | http://hdl.handle.net/2097/2545 | |
dc.publisher | Kansas State University. Agricultural Experiment Station and Cooperative Extension Service | en_US |
dc.relation.isPartOf | Swine day, 1992 | en_US |
dc.relation.isPartOf | Kansas Agricultural Experiment Station contribution; no. 93-142-S | en_US |
dc.relation.isPartOf | Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 667 | en_US |
dc.subject | Swine | en_US |
dc.subject | Threonine | en_US |
dc.subject | Pig | en_US |
dc.title | The effect of dietary threonine on growing pig growth performance | en_US |
dc.type | Conference paper | en_US |