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Artificial cooling of buffaloes (Bubalus bubalis) in a hot environment, and plasma oxytocin concentration

Published online by Cambridge University Press:  27 March 2009

A. K. Sharma ,
P. C. Gangwar ,
R. K. Srivastava  and
D. P. Dhingra
A. K. Sharma
Affiliation:
Department of Animal Sciences
P. C. Gangwar
Affiliation:
Department of Animal Sciences
R. K. Srivastava
Affiliation:
Department of Processing and Agricultural Strtictures, Punjab Agricultural University, Ludhiana-141 004, India
D. P. Dhingra
Affiliation:
Department of Processing and Agricultural Strtictures, Punjab Agricultural University, Ludhiana-141 004, India
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Summary

Nine normal lactating Murrah buffaloes from the Punjab Agricultural University Dairy herd were used to assess the effect of showers and evaporative cooling on plasma oxytocin concentration, let-down time, milking time and milk yield in buffaloes. The animals were showered four times daily between 10.30 and 16.30 h or provided with evaporative cooling from 07.00 to 21.00 h. In the hot and dry period the oxytocin concentration in buffaloes given a shower was significantly greater than that of the buffaloes of the control group. In the hot and humid period there was a similar trend.

It is concluded from these studies, that cooling may increase the effective milk ejection reflex because the milk-ejection response to a given blood oxytocin concentration is different when the animal is heat stressed from when it is cooled.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 98 , Issue 2 , April 1982 , pp. 421 - 423
Copyright
Copyright © Cambridge University Press 1982

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References

REFERENCES

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