Selection response for feed conversion and growth traits in polled Hereford cattle

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dc.contributor.author Glaze, J.B. Jr.
dc.contributor.author Schalles, R.R.
dc.date 1999 en
dc.date.accessioned 2010-08-23T19:34:40Z
dc.date.available 2010-08-23T19:34:40Z
dc.date.issued 2010-08-23T19:34:40Z
dc.identifier.uri http://hdl.handle.net/2097/4713
dc.description.abstract Direct and correlated responses to selection for improved feed conversion were estimated from performance records of 1459 Polled Hereford cattle born from the spring of 1967 through the spring of 1979. Data were analyzed using a multiple-trait, derivative-free, restricted maximum likelihood (MTDFREML) procedure. A full animal model was used to calculate genetic and phenotypic (co)variances. The withinherd breeding values that resulted from the solution of the mixed model equations were regressed on year to create selection response curves. Feed conversion was shown to respond favorably to direct selection, with feed/gain changing -.005 per year. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen’s Day, 1999 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 99-339-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 831 en_US
dc.subject Beef en_US
dc.subject Selection en_US
dc.subject Response en_US
dc.subject Feed conversion en_US
dc.subject Polled Hereford en_US
dc.title Selection response for feed conversion and growth traits in polled Hereford cattle en_US
dc.type Conference paper en_US
dc.date.published 1999 en_US
dc.citation.epage 80 en_US
dc.citation.spage 77 en_US
dc.description.conference Cattlemen's Day, 1999, Kansas State University, Manhattan, KS, March 5, 1999 en_US


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