Reproductive performance of Angus x Hereford and Brahman x Hereford heifers fed to prebeeding target weights

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dc.contributor.author Patterson, D.J.
dc.contributor.author Corah, L.R.
dc.contributor.author Simms, D.D.
dc.contributor.author Brethour, J.R.
dc.contributor.author Negus, W.R.
dc.date.accessioned 2010-12-03T20:59:25Z
dc.date.available 2010-12-03T20:59:25Z
dc.date.issued 2010-12-03
dc.identifier.uri http://hdl.handle.net/2097/6770
dc.description.abstract Heifer development as effected by nutrition was evaluated in 148 F Angus x Hereford (A x H) and 148 F Brahman x Hereford (B x H) heifers. Heifers within each breed cross were assigned to one of two energy levels and weight groups. Heifers on the low and high energy-level diets were fed to reach 55 or 65%, respectively, of their projected mature body weights by the start of spring breeding. A higher (P<.05) percentage of A x H heifers had reached puberty by the start of spring breeding; however, their average age at puberty was greater (P<.05) than that of B x H heifers. Weight at puberty, for heifers that cycled prior to the start of spring breeding, did not differ between breed groups. Weight of heifers at puberty was greater with the high-energy than with the low-energy diets. Prebreeding body condition scores of heifers on the two energy levels differed (P<.05) more among the A x H females. The A x H heifers had higher (P<.05) fall pregnancy rates than the B x H heifers (89.2 vs 71.9%). Energy level has no significant effect on fall pregnancy rate of A x H heifers, but B x H heifers on the high-energy level had a higher (P<.05) pregnancy rate than those on the low-energy diet. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen’s Day, 1986 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 86-320-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 494 en_US
dc.subject Beef en_US
dc.subject Reproductive performance en_US
dc.subject Target weight en_US
dc.subject Pregnancy rate en_US
dc.title Reproductive performance of Angus x Hereford and Brahman x Hereford heifers fed to prebeeding target weights en_US
dc.type Conference paper en_US
dc.date.published 1986 en_US
dc.citation.epage 38 en_US
dc.citation.spage 35 en_US
dc.description.conference Cattlemen's Day, 1986, Kansas State University, Manhattan, KS, March, 1986 en_US


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