Effects of daily porcine somatotropin administration on tile performance and carcass characteristics of finishing swine

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dc.contributor.author Fitzner, G.E.
dc.contributor.author Nichols, David A.
dc.contributor.author Schricker, B.R.
dc.contributor.author Darden, D.E.
dc.contributor.author Weeden, T.L.
dc.contributor.author Goodband, Robert D.
dc.contributor.author Hines, Robert H.
dc.contributor.author Nelssen, Jim L.
dc.contributor.author Kropf, Donald H.
dc.date.accessioned 2010-04-09T15:32:19Z
dc.date.available 2010-04-09T15:32:19Z
dc.date.issued 2010-04-09T15:32:19Z
dc.identifier.uri http://hdl.handle.net/2097/3560
dc.description.abstract One hundred forty-four pigs (72 barrows and 72 gilts) were utilized in six treatments with six pens each to evaluate four levels of daily porcine somatotropin (pST) injections (0, 1, 3, or 5 mg/d) in combination with diets containing 13 or 16% crude protein (CP). One randomly selected pig from each pen was slaughtered when it reached a weight between 230 and 240 lb. Daily feed intake (ADFI), tenth rib backfat, and estimated percentage of lean pork were reduced in pigs fed the 13% CP diet and injected with 3 mg/d pST compared to pigs fed the same diet and injected daily with a placebo. Feed intake was reduced in pigs fed the 16% CP diet and injected daily with 3 and 5 mg/d pST. Improvement in feed conversion (F/G), tenth rib backfat, and estimated percentage lean pork occurred when pigs fed the 16% CP diet were injected with 1 mg/d, with greater improvements occurring at the 3 and 5 mg/d levels of pST. The improvement in F/G and the greater magnitude of response observed in pigs fed 16% CP diets compared to the response of pigs fed the 13% CP diet indicate that both the performance and carcass characteristics of pigs injected with pST are dependent on the dietary CP content. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine day, 1989 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 90-163-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 581 en_US
dc.subject Swine en_US
dc.subject Porcine somatotropin en_US
dc.subject Finishing pigs en_US
dc.subject Crude protein en_US
dc.title Effects of daily porcine somatotropin administration on tile performance and carcass characteristics of finishing swine en_US
dc.type Conference paper en_US
dc.date.published 1989 en_US
dc.citation.epage 131 en_US
dc.citation.spage 128 en_US
dc.description.conference Swine Day, Manhattan, KS, November 16, 1989 en_US
dc.contributor.authoreid goodband en_US
dc.contributor.authoreid jnelssen en_US
dc.contributor.authoreid dnichols en_US


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