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A note on the relationship between the rate of machine-milking and milk production of Ayrshire heifers

Published online by Cambridge University Press:  02 September 2010

M. E. Castle  and
R. Henderson
M. E. Castle
Affiliation:
Hannah Dairy Research Institute, Ayr
R. Henderson
Affiliation:
A.R.C. Unit of Statistics, University of Edinburgh
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Summary

Records of milking rate, milk yield and milk composition were collected over 12 yr from 123 Ayrshire heifers in their first lactation in one herd. Three direct measures of milking rate, i.e. peak flow rate, machine rate and overall rate were closely correlated and each was also correlated with total lactation yield of milk. Milking rate accounted for only a very small part of the variation in fat and total solids percentages. The mean yield of milk per milking in early lactation was a better predictor of total lactation yield than was milking rate but, among animals giving the same early lactation yield of milk, the faster milkers gave higher lactation yields than the slower milkers.

Type
Research Article
Information
Animal Production , Volume 13 , Issue 2 , May 1971 , pp. 353 - 356
Copyright
Copyright © British Society of Animal Science 1971

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References

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