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These studies were undertaken to establish whether there are gene-specific differences in FSH and LH concentrations in the plasma of ovariectomized ewes that are crosses between local breeds (German Mutton Merino, Texel or Suffolk) and carriers and non-carriers of Booroola (FecB) or Cambridge (FecC) genes for prolificacy. The relationships of FSH or LH levels to ovulation rates, predetermined over...
Terminal follicular dynamics and ovulation rates (OR) were compared in different local breeds after introducing fecundity genes of different origin. Crossbred ewes which were carriers (F+) or non-carriers (++) of Booroola ( B Fec) or Cambridge genes ( C Fec) were included: Cambridge×Cambridge (CC), Cambridge×Suffolk (CS), Cambridge×Texel (CT), Booroola×Texel (BT) and Booroola×German...
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