PMID: 11325185Apr 28, 2001Paper

Production performance of beef cows raised on three different nutritionally controlled heifer development programs

Journal of Animal Science
H C FreetlyT G Jenkins

Abstract

The objective of this study was to determine primiparous heifer performance following three different heifer development strategies that were the result of timed nutrient limitation. Two hundred eighty-two spring-born MARC III heifers were weaned at 203+/-1 d of age and 205+/-1 kg BW. The experiment was conducted on two calf crops with 120 heifers born in 1996 and 162 heifers born in 1997. Treatments consisted of different quantities of the same diet being offered for a 205-d period. Heifers in the HIGH treatment were offered 263 kcal ME/(BWkg)0.75 daily. Heifers in the MEDIUM treatment were offered 238 kcal ME/(BWkg)0.75 daily. Heifers in the LOW-HIGH treatment were offered 157 kcal ME/(BWkg)0.75 daily the first 83 d and 277 kcal ME/(BWkg)0.75 daily for the remainder of the 205 d. Treatments differed in total ME intake (P < 0.001); heifers on the HIGH treatment consumed 3,072+/-59 Mcal/heifer, those on the MEDIUM treatment consumed 2,854+/-21 Mcal/heifer, and those on the LOW-HIGH treatment consumed 2,652+/-19 Mcal/ heifer. At the beginning of breeding, heifers on the HIGH treatment were taller at the hips (P = 0.01) and weighed more (P < 0.001) than heifers in the other two treatments. The percentage of heifers that calved ex...Continue Reading

Citations

Apr 5, 2014·Animal : an International Journal of Animal Bioscience·D C WathesJ S Cooke
May 1, 2007·Journal of Animal Science·E E GringsM D MacNeil
Oct 4, 2011·Journal of Animal Science·R N FunstonA J Roberts
Dec 8, 2015·Journal of Animal Science·O L AmundsonH C Freetly
Nov 19, 2014·Journal of Animal Science·H C FreetlyR A Cushman
Jul 9, 2011·The British Journal of Nutrition·Richard C WatermanMichael D MacNeil
Jan 1, 2013·Annual Review of Animal Biosciences·R N Funston, A F Summers
Aug 19, 2020·Domestic Animal Endocrinology·A A MiszuraA V Pires
Jan 1, 2021·Translational Animal Science·Shelby L RosascoAdam F Summers
Jan 29, 2021·Translational Animal Science·Parker A HenleyDaniel W Shike
Jul 13, 2021·Translational Animal Science·Harvey C FreetlyGary L Bennett

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