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414. Experiments on milking technique: 7. The effect of subjecting dairy cows, for a complete lactation, to a rigid control of the duration of milking

Published online by Cambridge University Press:  01 June 2009

F. H. Dodd ,
A. S. Foot ,
Ettie Henriques  and
F. K. Neave
F. H. Dodd
Affiliation:
National Institute for Research in Dairying, University of Reading
A. S. Foot
Affiliation:
National Institute for Research in Dairying, University of Reading
Ettie Henriques
Affiliation:
National Institute for Research in Dairying, University of Reading
F. K. Neave
Affiliation:
National Institute for Research in Dairying, University of Reading
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Extract

1. Thirty-eight first-calf heifers in two equal groups were subjected for complete lactations to a rigid control of the duration of milking to either 4 or 8 min.

2. The treatment had no major effect on the milking rates of either group.

3. Whilst 4 min. was insufficient time to milk out completely the udders of about half the animals on this treatment, the machines on the 8 min. treatment were generally left on for a period after milk flow had stopped.

4. There was no significant difference between the 305-day lactation yields of the two groups or in the persistency. The 4 min. treatment did, however, decrease the yield of milk and fat in early lactation.

5. The 8 min. cows had more clinical and subclinical mastitis, though they did not have a higher proportion of eroded teats nor higher Whiteside test readings.

6. Teat erosion appeared to be correlated with slow milking.

Type
Original Articles
Information
Journal of Dairy Research , Volume 17 , Issue 2 , June 1950 , pp. 107 - 116
Copyright
Copyright © Proprietors of Journal of Dairy Research 1950

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References

REFERENCES

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