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RESEARCH ARTICLE

The effect of nutritive status on oestrus, ovulation, and Graafian follicles in Merino ewes

DR Lamond

Australian Journal of Agricultural Research 14(4) 483 - 491
Published: 1963

Abstract

Progesterone suppression of ovarian cycles and the subsequent "release" phenomena following cessation of injections were examined in three groups of ewes under different nutritional regimens. A significant delay in the period from the final progesterone injection to onset of oestrus occurred in ewes on a restricted diet compared with ewes on a maintenance diet. A strong relationship existed within the restricted group between body weight and the period to onset of oestrus. Gonadotrophin appeared to compensate for the effect of undernutrition.

https://doi.org/10.1071/AR9630483

© CSIRO 1963

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