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The performance of early-weaned calves offered concentrates or artificially dried grasses

Published online by Cambridge University Press:  02 September 2010

R. Marsh
R. Marsh
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down
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Summary

In two experiments dried grass cobs or concentrate were offered to calves for 20 weeks after weaning. In Experiment 1 the grasses were harvested in the autumn and in Experiment 2 in the spring. Within each experiment three grasses differing in quality and two levels of concentrate were compared.

Dry-matter intake of the dried grasses highest in digestibility was lower than that of medium digestibility grass, and hardness of package, palatability and mould infestation were implicated as possible causal factors.

Live-weight gains by calves were closely correlated with digestible organic matter (DOM) intake. There was no significant difference between spring harvested grasses and concentrate in efficiency of utilization of DOM for live-weight gain but autumn grasses were used less efficiently than concentrate. At similar rates of gain the replacement value (dry-matter basis) of dried grass for concentrate averaged 142: 1.

Type
Research Article
Information
Animal Production , Volume 18 , Issue 2 , April 1974 , pp. 201 - 210
Copyright
Copyright © British Society of Animal Science 1974

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References

REFERENCES

Blaxter, K. L., Wainman, F. W., Dewey, P. J. S., Davidson, J., Denerley, H. and Gunn, J. B. 1971. The effects of nitrogenous fertilizer on the nutritive value of artificially dried grass. J. agric. Sci., Camb. 76: 307–319.CrossRefGoogle Scholar
Blaxter, K. L., Wainman, F. W. and Wilson, R. S. 1961. The regulation of food intake by sheep. Anim. Prod. 3: 51–61.Google Scholar
Connell, J. and Jones, J. G. W. 1968. The dried grass cube as a production concentrate for the dairy cow. Anim. Prod. 10: 231 (Abstr.).Google Scholar
Gordon, F. J. and Kormos, J. 1973. The effect of level of feeding of dried grass on milk production and the value of dried grass as a replacement for conventional dairy concentrates. Anim. Prod. 16: 235–243.Google Scholar
Hodgson, J. 1968. The relationship between the digestibility of a sward and the herbage consumption of grazing calves. J. agric. Sci., Camb. 70: 47–51.CrossRefGoogle Scholar
Lonsdale, C. R. and Tayler, J. C. 1971. The artificial rearing of calves and their growth on grass diets. III. The effect of length of period of feeding cold milk substitute to calves given dried grass in different physical forms. J. agric. Sci., Camb. 76: 495–505.CrossRefGoogle Scholar
Marsh, R., Mccullough, T. A. and Mckeown, J. B. 1973. The feasibility of replacing part or all of a concentrate ration for calves with dried grass. Rec. agric. Res. Minist. Agric. Nth. Ir. 21: 31–36.Google Scholar
Mccullough, T. A. 1972. The effect on fattening steers of supplementing silage with dried grass or rolled barley. J. Br. Grassld Soc. 27: 115–118.Google Scholar
Meat and Livestock Commission. 1971. Beef Production: An Intensive Grassland System Using Autumn-Born Calves. Handbook No. 1. Meat and Livestock Commission, Bletchley, Bucks.Google Scholar
Milne, J. A. and Campling, R. C. 1972. Intake and digestibility by sheep of artificially dried forages in several physical forms. J. agric. Sci., Camb. 78: 79–86.Google Scholar
Minson, D. J. 1963. The effect of pelleting and wafering on the feeding value of roughage—a review. J. Br. Grassld Soc. 18: 39–44.Google Scholar
Minson, D. J., Raymond, W. F. and Harris, C. E. 1960. Studies in the digestibility of herbage. 8. The digestibility of S37 cocksfoot, S23 ryegrass and S24 ryegrass. J. Br. Grassld Soc. 15: 174–180.Google Scholar
Roy, J. H. B. 1970. The Calf. Vol. 2. Nutrition and Health. Iliffe, London.Google Scholar
Steel, R. G. D. and Torrie, J. H. 1960. Principles and Procedures of Statistics. McGraw-Hill, London.Google Scholar
Tayler, J. C. 1970. Dried forages and beef production. J. Br. Grassld Soc. 25: 180–190.CrossRefGoogle Scholar
Wilkins, R. J. 1970. The ad libitum intake and digestibility of dried grass pellets and silage by sheep. J. Br. Grassld Soc. 25: 125–130.Google Scholar
Wilkins, R. J., Lonsdale, C. R., Tetlow, R. M. and Forrest, T. J. 1972. The voluntary intake and digestibility by cattle and sheep of dried grass wafers containing particles of different size. Anim. Prod. 14: 177–188.Google Scholar
American Society of Agricultural Engineers, 1967. Recommendation A.S.A.E.R. 2461. Method of determining modulus of uniformity and modulus of fineness of ground feed. Yb. Am. Soc. agric. Engrs, 1967, p. 301.Google Scholar