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The size of dairy heifers

Published online by Cambridge University Press:  01 September 1960

John Hodges ,
L. K. O'Connor  and
W. M. Clark
John Hodges
Affiliation:
Milk Marketing Board, Thames Ditton, Surrey
L. K. O'Connor
Affiliation:
Milk Marketing Board, Thames Ditton, Surrey
W. M. Clark
Affiliation:
Milk Marketing Board, Thames Ditton, Surrey
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Extract

1. A field investigation to estimate the mean weight and chest girth of unserved Friesian, Ayrshire and Dairy Shorthorn heifers of between 3 and 24 months of age was carried out.

2. Data from 1,620 Friesians, 725 Ayrshires and 455 Dairy Shorthorns in the North of England were obtained, with a mobile weighbridge and a. spring-loaded steel tape in the winter 1958–59.

3. It was found that on average the Friesians were heavier and had a greater chest girth than the Ayrshires and Dairy Shorthorns, which did not differ significantly.

4. These heifers were apparently reared on planes of nutrition which, judged by conventional feeding standards, may be described as ‘low’.

5. After eliminating the linear effect of age by covariance analysis, highly significant differences between herds and between sires in weight and chest girth were found.

6. The investigation demonstrated the feasibility and value of collecting field data on body size.

Type
Research Article
Information
Animal Production , Volume 2 , Issue 2 , September 1960 , pp. 187 - 195
Copyright
Copyright © British Society of Animal Science 1960

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References

REFERENCES

Crichton, J. A, Aitken, J. N, & Boyne, A. W, 1959. The effect of plane of nutrition during rearing on growth, production, reproduction and health of dairy cattle. I. Growth to 24 months. Anim. Prod., 1: 145.Google Scholar
Crichton, J. A, Aitken, J. N, & Boyne, A. W, 1960. The effect of nutrition during rearing on growth, production, reproduction and health of dairy cattle. III. Milk production during the first three lactations. Anim. Prod., 2: 159.CrossRefGoogle Scholar
Hansson, A., 1956. Influence of rearing intensity on body development and milk production. Proc. Brit. Soc. Anim. Prod., 1956: 51.CrossRefGoogle Scholar
Joubert, D. M, 1954a. The influence of winter nutritional depressions on the growth, reproduction and production of cattle. J. agric. Sci., 44: 5.CrossRefGoogle Scholar
Joubert, D. M, 1954b. The influence of high and low nutritional planes on the oestrus cycle and conception rate of heifers. J. agric. Sci., 45: 164.CrossRefGoogle Scholar
Morrison, F. B, 1956. Feeds and Feeding. The Morrison Publishing Co., Ithaca, N.Y.Google Scholar
Ragsdale, A. C, 1934. Growth standards for dairy cattle. Bull Mo. agric. Exp. Sta., No. 336.Google Scholar
Wiener, G., 1959. Growth of cattle twins on dairy farms with high and low yielding herds. Anim. Prod., 1: 61.Google Scholar
Woodman, H. E, 1948. Rations for livestock. Bull. Minist. Agric. (Lond.), No. 48.Google Scholar