Publications by authors named "Jane P N Brennan"

Article Synopsis
  • Anti-Müllerian hormone (AMH) is linked to ovarian reserve, with maternal and environmental factors influencing its levels during early fetal development in dairy heifers.
  • This study aimed to investigate if maternal growth before conception and early gestation affects AMH concentrations in female offspring, with a hypothesis that excessive growth would lead to lower AMH levels.
  • Results indicated that increasing maternal growth linked to an initial pregnancy diagnosis correlated with reduced AMH in calves, though this accounted for only a small portion of variability in AMH levels.
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Heifers that conceive early in the breeding season are key to the maintenance of a compact calving pattern in seasonal dairy herds. The purpose of this prospective observational study was to determine whether a single pre-breeding examination is useful in predicting future reproductive and calving performance in dairy heifers. This evaluation was based on a matrix of easily measurable variables which could be applied to seasonal, pasture-based dairy heifers.

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