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The effect of pregnancy on the live weight of dairy cows

Published online by Cambridge University Press:  27 March 2009

Stephen Bartlett
Stephen Bartlett
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading.
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Extract

The figures analysed in the subsequent pages were obtained (by the kind permission and help of Prof. S. Pennington) during the five years, May 1920 to May 1925, from the College Farm dairy cows at University College, Reading, and before proceeding, a few notes on the herd and its management are desirable.

The herd is small (14–18 animals), and was established in 1908 by purchasing non-pedigree Dairy Shorthorn heifers which have since been “graded up” by the use of Pedigree Dairy Shorthorn bulls. The cows are typical Dairy Shorthorns, of a fairly large size, and the degree of fatness normally maintained might be described as good thriving condition, and probably better condition than average dairy cows.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 16 , Issue 3 , July 1926 , pp. 392 - 405
Copyright
Copyright © Cambridge University Press 1926

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References

REFERENCES

(1)Eckles, (1916). Research Bulletin, 26, Univ. Missouri, pp. 7 and 8.Google Scholar
(2)Hammond, and Sanders, (Jan. 1923). Journal of Agricultural Science, 13, part I.Google Scholar
(3)Marshall, (1922). Physiology of Reproduction, 2nd edition, p. 523.Google Scholar
(4)Marshall, (1922). Physiology of Reproduction, 2nd edition, p. 555.Google Scholar