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Post-partum intervals to oestrus and conception in Yankasa sheep

Published online by Cambridge University Press:  27 March 2009

O. A. Osinowo
Affiliation:
Department of Animal Reproduction and A.I., National Animal Production Research Institute, Ahmadu Bello University, Zaria, Nigeria
Grace A. Ekpe
Affiliation:
Department of Animal Reproduction and A.I., National Animal Production Research Institute, Ahmadu Bello University, Zaria, Nigeria

Extract

The potential for twice-yearly lambings by tropical sheep is well recognized (Brown, Cameron & Ngere, 1972; Goode, Linnerud & Tugman, 1980; Osinowo, 1982). In order for ewes to lamb every 6 months the rebreeding interval must be 33 days or less. Factors affecting rebreeding in post-partum ewes have been reviewed (Hunter, 1968a, b Van Niekerk, 1979).

Type
Short Notes
Copyright
Copyright © Cambridge University Press 1985

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