Compensatory growth in cattle. 1. Influence of feeding level during the first winter (9 to 14 months of age) on subsequent performance and carcass composition

Drennan, M.J.

Irish Journal of Agricultural Research 18(2): 131-143

1979


ISSN/ISBN: 0578-7483
DOI: 10.2307/25555937
Accession: 000619618

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Abstract
1. For 149 days in winter, 24 single-suckled newly weaned cattle, mean weight 286 kg and 24 pail-fed cattle of 191 kg were given low, moderate or high planes of nutrition. The low plane was provided by giving silage only to both groups; the moderate or high planes were provided by giving 1.84 or 3.96 kg concentrate daily to suckled cattle and 1.52 or 3.31 kg to pail-fed cattle. Animals getting low, moderate or high planes of nutrition had total liveweight gains in winter of -2, 58 or 97 kg for suckled cattle and 15, 65, or 109 kg for pail-fed cattle. All animals were subsequently grazed together and gains of suckled cattle previously getting low, moderate or high planes of nutrition were 103, 69 or 55 kg during the first 82 days at pasture. Corresponding gains of pail-fed animals were 94, 86 or 75 kg. Cattle were slaughtered at 453 kg and those not reaching this weight after grazing were given silage and 2.72 kg of barley daily. Plane of nutrition during the first winter did not affect the overall carcass composition or distribution of lean meat, fat or bone in carcasses.