Abstract
SUMMARYThe effect of herbage allowance and milk intake upon herbage intake and performance was investigated using 48 Hereford × Friesian calves purchased at 10–12 days of age and reared on reconstituted milk substitute. Groups of 24 calves were fed low (L) or high (H) daily quantities of milk normally associated with 240-day lactation yields of 1000 or 2000 kg. Six calves on each milk treatment were allocated to four daily herbage allowances during the grazing season. These were 20, 40, 60 or 80 g/kg herbage dry matter/kg live weight.There was no effect of herbage allowance before day 95; thereafter both herbage intake and live-weight gain of the L20 and H20 groups were depressed. The effect was greatest for the L calves. Additional milk consumption reduced herbage intake at all herbage allowances. Milk intake influenced the extent to which calves were buffered from the effects of a low herbage allowance.
Publisher
Cambridge University Press (CUP)
Subject
Genetics,Agronomy and Crop Science,Animal Science and Zoology
Reference17 articles.
1. Beef production from grass and silage with autumn-born calves. 1. The influence of grazing intensity on efficiency of herbage utilization and live-weight gain of cattle
2. Tayler J. C. (1966). Relationships between the herbage consumption or carcass energy increment of grazing beef cattle and the quantity of herbage on offer. Proceedings of 10th International Grassland Congress, pp. 463–70.
3. Greenhalgh J. F. D. (1970). The effects of grazing intense on herbage production and consumption and on milk production in strip-grazed dairy cows. Proceedings of 11th International Grassland Congress, pp. 856–60.
4. Evaluation of five Mediterranean annual pasture species during early growth
5. Milk-fed calves: 1. The effect of milk intake upon the herbage intake and performance of grazing calves
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