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The relationship between the month of calving and milk production

Published online by Cambridge University Press:  02 September 2010

P. D. P. Wood
P. D. P. Wood
Affiliation:
Milk Marketing Board, Thames Ditton, Surrey
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Summary

A sample of 6846 Friesian heifers recorded in 672 herds during the year ending 30 September 1968, taken from two areas of England and Wales, has been used to estimate the effect of the calving month on total lactation yield. In both areas, the North and the South-West, a variation amounting to nearly 12% of the mean yield was estab-lished, with lactations resulting from October-December calvings the highest and those from May-June calvings the lowest. There was no evidence of association with particular levels of management, or management systems, as exemplified by a seasonal calving pattern.

Information

Type
Research Article
Information
Animal Production , Volume 12 , Issue 2 , May 1970 , pp. 253 - 259
Copyright
Copyright © British Society of Animal Science 1970

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References

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