Variations of net requirements for cattle growth with liveweight, liveweight gain, breed and sex
نویسندگان
چکیده
منابع مشابه
Rumen fermentation and liveweight gain in beef cattle treated with monensin and grazing lush forage.
OBJECTIVE To determine the prevalence of subacute rumen acidosis (SARA) in beef cattle grazing lush pasture and the effect of monensin on reducing SARA and improving animal performance. DESIGN Commercial Angus and Murray Grey steers received a monensin slow-release capsule (n = 19) or remained untreated (n = 19). Cattle grazed an oats crop or tetraploid ryegrass pasture for a total of 91 days...
متن کاملModelling the effect of nematode parasites on the liveweight gain of lambs grazing alternately with cattle
A dynamic model for nematode parasites in lambs which links their adult parasite burden with liveweight gain was extended to investigate alternate grazing with cattle to provide relatively larval-free pasture for finishing lambs. Liveweight performance of weaned lambs was tracked fortnightly under rotational grazing using three cattle:sheep ratios, with three initial parasite burdens and two in...
متن کاملThe Effects of Urea-mineral Lick Blocks on the Liveweight Gain of Local Yellow Cattle and Goats in Grazing Conditions
متن کامل
Estimation of genetic parameters for body measurements and their association with yearling liveweight in the Makuie sheep breed
Copyright resides with the authors in terms of the Creative Commons Attribution 2.5 South African Licence. See: http://creativecommons.org/licenses/by/2.5/za Condition of use: The user may copy, distribute, transmit and adapt the work, but must recognise the authors and the South African Journal of Animal Science. _______________________________________________________________________________...
متن کاملProliferation Rates of Bovine Primary Muscle Cells Relate to Liveweight and Carcase Weight in Cattle
Muscling in cattle is largely influenced by genetic background, ultimately affecting beef yield and is of major interest to the beef industry. This investigation aimed to determine whether primary skeletal muscle cells isolated from different breeds of cattle with a varying genetic potential for muscling differ in their myogenic proliferative capacity. Primary skeletal muscle cells were isolate...
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ژورنال
عنوان ژورنال: Annales de Zootechnie
سال: 1980
ISSN: 0003-424X
DOI: 10.1051/animres:19800506