Evaluation of pelleted dried grass as a supplement to grass silage for fattening steers
| Autor: | M. J. Lawlor, M. J. Drennan |
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| Rok vydání: | 1976 |
| Předmět: | |
| Zdroj: | Animal Science. 22:97-103 |
| ISSN: | 1748-748X 1357-7298 |
| Popis: | SummaryTwo experiments were carried out using 130 Friesian-type castrated males (steers) to compare pelleted dried grass with rolled barley as supplements to high quality grass silage for fattening steers. There were six treatments in each experiment and, in addition, Experiment 1 had a pre-experimental slaughter group. The animals on each treatment were group-fed grass silage ad libitum for 98 and 112 days in Experiments 1 and 2 respectively. The treatments were (1) no supplement, (2) 1·5 kg dried grass, (3) 3·0 kg dried grass, (4) 4·5 kg dried grass, (5) 1·5 kg barley and (6) 3·0 kg barley per head daily. Each increase in the level of supplement depressed silage DM intake but there was no difference between dried grass and rolled barley. At each level of supplementation, live-weight and carcass-weight gain for animals fed dried grass and barley were similar. Responses in terms of live weight and carcass weight to increasing increments of supplementary feed declined as the level of supplementation was increased. |
| Databáze: | OpenAIRE |
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