Postpartum acyclicity in suckled beef cows: A review
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Considerations for Using Natural Service with Estrous Synchronization Programs
2024, Veterinary Clinics of North America - Food Animal PracticeEvaluation of hCG as gonadotropic support to timed embryo transfer protocol in beef cattle
2023, TheriogenologyCitation Excerpt :However, under the management conditions of most tropical herds, postpartum anestrus is a major fertility limiter in both TAI and timed embryo transfer (TET) programs. This is due to the low amount of luteinizing hormone (LH) stored in the pituitary, which limits the restoration of ovarian activity during the postpartum period [20] and that is intensified under inadequate nutritional conditions or suckling frequency [21]. Therefore, most timed hormonal protocols use equine chorionic gonadotropin (eCG) as an additional gonadotropic stimulus at the end of P4 treatment to increase follicular growth, ovulation rate, corpus luteum (CL), luteotrophic activity and improve conception [22–24].
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