Post-weaning feed efficiency decreased in progeny of higher milk yielding beef cows
| Autor: | J. T. Mulliniks, E. R. Cope, S. R. Edwards, J. D. Hobbs, Z. D. McFarlane |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Offspring Ice calving Weaning Biology Beef cattle Weight Gain post-weaning growth Feed conversion ratio SF1-1100 Milking 03 medical and health sciences Animal science beef cattle feed efficiency Backgrounding Animals Dry matter milk production Body Weight 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences 040201 dairy & animal science Animal Feed Diet Animal culture 030104 developmental biology Milk feed intake Animal Science and Zoology Cattle Female Residual feed intake |
| Zdroj: | Animal, Vol 12, Iss 2, Pp 275-279 (2018) |
| ISSN: | 1751-7311 |
| Popis: | Current trends in the beef industry focus on selecting production traits with the purpose of maximizing calf weaning weight; however, such traits may ultimately decrease overall post-weaning productivity. Therefore, the objective of this study was to evaluate the effects of actual milk yield in mature beef cows on their offspring's dry matter intake (DMI), BW, average daily gain, feed conversion ratio (FCR) and residual feed intake (RFI) during a ~75-day backgrounding feeding trial. A period of 24-h milk production was measured with a modified weigh-suckle-weigh technique using a milking machine. After milking, cows were retrospectively classified as one of three milk yield groups: Lower (6.57±1.21 kg), Moderate (9.02±0.60 kg) or Higher (11.97±1.46 kg). Calves from Moderate and Higher milk yielding dams had greater (P |
| Databáze: | OpenAIRE |
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