Using Anti-Müllerian Hormone (AMH) as a Predictor of Ova Production for Bovine Embryo Transfer

Abstract

The objective of this study was to determine the relationship of anti-Müllerian hormone (AMH) to ova production in various breeds of cattle in an embryo transfer program. Various factors that were evaluated included breed type, age, weight, body condition and flush history as to their influence on total ova recovery. The superovulation regimen called for CIDR (Controlled Internal Drug Release) insertion and a 2 cc injection of Combo (25 mg progesterone and 1.25 mg of estradiol per mL (2 cc IM injection)) on day 0. Day 4, FSH treatments were initiated in both AM and PM with decreasing amounts over the next four days. Day 6, along with FSH, prostaglandin was given in the AM and PM. On Day 7, a final FSH injection and CIDR removal were done in the AM. This resulted in estrus and AI on day 8 and collection of ova on day 15. Results were drawn from analyzing 369 animals;

Relationship between the concentration of anti-Müllerian hormone and antral follicle count in pasture-managed Holstein cows in the high tropics

“…The recommended cut-off for AMH levels to identify animals with high AFC differs across subspecies; for example, they are 0.70 ng/ml for Bos indicus (Brahaman breed) and 0.25 ng/ml for Bos taurus (Angus breed; Jaques et al ., 2020). The levels of AMH considered low or high can differ between breeds of the same B. taurus subspecies, and even in the same breed.…”