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The length of the interval between calvings

Published online by Cambridge University Press:  27 March 2009

H. G. Sanders
H. G. Sanders
Affiliation:
(Animal Nutrition Institute, School of Agriculture, Cambridge.)
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Extract

An attempt has been made to ascertain the best interval between calvings, so that the cow's average weekly yield over a long period may be at a maximum. It was only possible to consider the case of the “average cow,” but it is claimed that the general principle has been established, that cows should calve at intervals of not less than a year, and not more than thirteen months; this optimum will probably be subject to a slight variation in particular cases. This is approximately the state of affairs in practice—though Norfolk farmers appear to err on the side of serving too early in the lactation, rather than too late.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 17 , Issue 1 , January 1927 , pp. 21 - 32
Copyright
Copyright © Cambridge University Press 1927

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References

REFERENCES

(1)Hammond, (1925). Fertility and Sterility in Domestic Animals. Journ. of the Farmers’ Club, pt 6.Google Scholar
(2)Hammond, and Sanders, (1923). Some Factors Affecting Milk Yield. Journ. Agric. Sci. 13, pt 1.CrossRefGoogle Scholar
(3)Mackintosh, (1923). Successful Farming Series. Dairy Cattle.Google Scholar
(4)Sanders, . (Not yet published.)Google Scholar
(5)Venn, and Carslaw, . An Economic and Financial Analysis of Fifteen East Anglian Farms in 1924–1925. Report No. 3, of the Farm Economics Branch, School of Agriculture, Cambridge.Google Scholar
(6)Wing, (1917). Milk and its Products. Page 37. New York.Google Scholar