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A note on seasonal changes in litter size of Finn × Awassi ewes

Published online by Cambridge University Press:  02 September 2010

D. Amir ,
H. Schindler  and
A. Genizi
D. Amir
Affiliation:
Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
H. Schindler
Affiliation:
Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
A. Genizi
Affiliation:
Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
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Abstract

The twinning rate of Finn × Awassi ewes in a breeding management system which included three breeding periods a year, namely, June, September and December-January, was studied in animals mated at their natural or induced oestrus.

A similar number of lambs per ewe lambing was obtained from the ewes mated either at the induced oestrus in June or September, or at their natural oestrus in December. A significant decrease was found in the twinning rate of the ewes mated in January after hormone treatment. The conception rate was highest in the ewes mated in December-January.

Type
Research Article
Information
Animal Production , Volume 32 , Issue 1 , February 1981 , pp. 121 - 123
Copyright
Copyright © British Society of Animal Science 1981

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References

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