Growth, carcass and boar-odor traits in male pigs fed altrenogest


Show simple item record Stevenson, Jeffrey S. Kluber, E.F. III Minton, J. Ernest Davis, Duane L. Hunt, Melvin C. Pollmann, D.S. Nelssen, Jim L. 2010-04-22T21:54:39Z 2010-04-22T21:54:39Z 2010-04-22T21:54:39Z
dc.description.abstract Two experiments were conducted to examine the effects of a synthetic progestogen (altrenogest) on growth and carcass characteristics of boars. Altrenogest inhibited both the growth of the testes and the pubertal rise in testosterone that is associated with maleness. Growth rate, feed intake, and feed/gain were unaffected by feeding altrenogest in both experiments; however, in Exp. 2. growth rate and feed intake during the 4-wk withdrawal of altrenogest were less than those in the control boar or barrow groups. These changes appeared to be related to marked mounting activity of boars beginning 5 days after withdrawal of altrenogest from the feed. Feeding altrenogest to growing boars had no negative effects on carcass qualitative traits, but intensity of boar odor in fat was not diminished in treated boars. It is possible that altrenogest would have to be fed until about 1 wk before slaughter or later to allow marketing of boars without significant boar odor. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine day, 1986 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 87-133-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 507 en_US
dc.subject Swine en_US
dc.subject Growth en_US
dc.subject Carcass en_US
dc.subject Boar-odor en_US
dc.subject Altrenogest en_US
dc.title Growth, carcass and boar-odor traits in male pigs fed altrenogest en_US
dc.type Conference paper en_US 1986 en_US
dc.citation.epage 88 en_US
dc.citation.spage 84 en_US
dc.description.conference Swine Day, Manhattan, KS, November 20, 1986 en_US
dc.contributor.authoreid jss en_US
dc.contributor.authoreid eminton en_US
dc.contributor.authoreid davis en_US
dc.contributor.authoreid hhunt en_US
dc.contributor.authoreid jnelssen en_US

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