Effect of heifer source on reproductive performance, culling, marketing and profitability for a commercial heifer development program

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dc.contributor.author Lynch, J.M.
dc.contributor.author Lamb, G.C.
dc.contributor.author Corah, L.R.
dc.contributor.author Grieger, David M.
dc.date.accessioned 2010-09-02T21:13:01Z
dc.date.available 2010-09-02T21:13:01Z
dc.date.issued 2010-09-02T21:13:01Z
dc.identifier.uri http://hdl.handle.net/2097/4833
dc.description.abstract A commercial heifer development operation purchased 483 weanling Angus × Hereford heifers from 11 sources. Heifers were fed a common silage-based diet through an initial developmental period and retained or culled based on average daily gain, pelvic area, and disposition . The percentage of heifers culled from each source ranged from 18.1% to 94.7% and were either sold directly through a local sale barn or sent to a feedlot with retained ownership . Estrus was synchronized, and heifers were artificially inseminated (AI) for 30 days followed by 15 days of natural mating. First service conception rates for each source ranged from 0% to 92.3%, whereas overall pregnancy rates for the 45-day breeding season ranged from 81.3% to 100%. When expressed as a percentage of the original heifers purchased from each source, overall pregnancy rates ranged from 5.3% to 80%. Heifers that lost their fetuses were sold for a net loss of $213 per head. Heifers sold as first service AI bred, second service AI bred, and naturally mated netted $160, $129, and $89 per head, respectively. With accurate records, stringent culling practices, and evaluation of cost and performance, producers can optimize profit potential of replacement heifers. Early culling and pregnancy diagnosis also will decrease costs while increasing opportunities to minimize the financial risks. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen’s Day, 1997 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 97-309-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 783 en_US
dc.subject Beef en_US
dc.subject Replacement heifers en_US
dc.subject Culling en_US
dc.subject Artificial insemination en_US
dc.subject Economics en_US
dc.title Effect of heifer source on reproductive performance, culling, marketing and profitability for a commercial heifer development program en_US
dc.type Conference paper en_US
dc.date.published 1997 en_US
dc.citation.epage 107 en_US
dc.citation.spage 105 en_US
dc.description.conference Cattlemen's Day, 1997, Kansas State University, Manhattan, KS, March 7, 1997 en_US
dc.contributor.authoreid dgrieger en_US

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