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A note on the concentration of energy in the milk of Friesian and Jersey cows

Published online by Cambridge University Press:  02 September 2010

C. Grainger ,
C. W. Holmes ,
A. M. Bryant  and
Y. Moore
C. Grainger
Affiliation:
Department of Dairy Husbandry, Massey University, Palmerston, North, New Zealand
C. W. Holmes
Affiliation:
Department of Dairy Husbandry, Massey University, Palmerston, North, New Zealand
A. M. Bryant
Affiliation:
Ruakura Research Station, Hamilton, New Zealand
Y. Moore
Affiliation:
Department of Dairy Husbandry, Massey University, Palmerston, North, New Zealand
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Abstract

The relations between the gross energy concentration of milk and its concentration of fat and protein were calculated for samples of Jersey and Friesian milk. Stage of lactation and level of feeding had no consistent effects on the relations.

The calculated equations can be used to predict the energy concentrations of milk from Jersey or Friesian cows fed on pasture, from the concentrations of fat alone or from the concentrations of fat and protein. The predicted values agree with those predicted by earlier published equations.

Type
Research Article
Information
Animal Production , Volume 36 , Issue 2 , April 1983 , pp. 307 - 308
Copyright
Copyright © British Society of Animal Science 1983

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References

REFERENCES

Gaines, W. L. and Davidson, F. A. 1923. Relation between percentage fat content and yield of milk. Correction of milk for fat content. Bull. III. agric. Exp. Stn, No. 245.Google Scholar
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Tyrrell, H. F. and Reid, J. T. 1965. Prediction of the energy value of cow's milk. J. Dairy Sci. 48: 1215–1223.CrossRefGoogle ScholarPubMed