期刊
BIOLOGY OF REPRODUCTION
卷 79, 期 6, 页码 1219-1225出版社
SOC STUDY REPRODUCTION
DOI: 10.1095/biolreprod.108.071670
关键词
anti-Mullerian hormone; antral follicle count; bovine; follicle waves; ovarian reserve; ovary size; reproductive longevity; total number of healthy oocytes; variation in oocyte numbers
资金
- National Research Initiative Competitive [2001002255, 2004-01697, 2007-01289]
- U. S. Department of Agriculture Cooperative State Research, Education, and Extension Service
- Michigan Agriculture Experiment Station
- Science Foundation Ireland [02/IN1/B78]
Methods to predict numbers of healthy oocytes in the ovaries of young adults could have important diagnostic relevance in family planning and animal agriculture. We have observed that peak antral follicle count (AFC) determined by serial ovarian ultrasonography during follicular waves is very highly reproducible within individual young adult cattle, despite 7-fold variation among animals. Herein, we tested the hypothesis that AFC is positively associated with the number of morphologically healthy oocytes and follicles in ovaries and with serum concentrations of anti-Mullerian hormone (AMH), an indirect marker for number of healthy follicles and oocytes in ovaries. In the present study, age-matched young adult cattle (12 -18 mo old) were subjected to serial ultrasonography to identify animals with a consistently high (>= 25 follicles that were >= 3 mm in diameter) or low (<= 15 follicles) AFC during follicular waves. Differences in serum AMH concentrations, ovary weight, and number of morphologically healthy and atretic follicles and oocytes were determined. The phenotypic classifications of cattle based on AFC during follicular waves or AMH concentrations both predict reliably the relative number of morphologically healthy follicles and oocytes in ovaries of age-matched young adult cattle.
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