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The effects of live weight on the ovarian response to pregnant mare serum gonadotrophin and on embryo mortality in the ewe

Published online by Cambridge University Press:  27 March 2009

J. C. Guerra
Affiliation:
Department of Livestock Husbandry, University of New England, Armidale, N.S.W., Australia
C. J. Thwaites
Affiliation:
Department of Livestock Husbandry, University of New England, Armidale, N.S.W., Australia
T. N. Edey
Affiliation:
Department of Livestock Husbandry, University of New England, Armidale, N.S.W., Australia

Extract

Despite the fact that early embryo mortality commonly leads to the loss of 25% of fertilized ova in ewes (Edey, 1969), little is known of factors associated with this loss. Severe, acute undernutrition (Edey, 1966) and high ambient temperatures (Dutt, Ellington & Carlton, 1959) are specific factors which are known to cause embryo death, but these do not normally occur in most sheep producing areas.

Type
Short Note
Copyright
Copyright © Cambridge University Press 1971

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References

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