The effectiveness of intravaginal progesterone inserts in Ovsynch and resynchronization protocols in cyclic and non-cyclic Holstein heifers
Author:
Publisher
Veterinary Journal of Ankara University
Subject
General Veterinary,Animal Science and Zoology
Reference32 articles.
1. Referans1 Ambrose JD, Kastelic JP, Rajamahendran R, et al (2005): Progesterone (CIDR)-based timed AI protocols using GnRH, porcine LH or estradiol cypionate for dairy heifers: Ovarian and endocrine responses and pregnancy rates. Theriogenology, 64, 1457-1474.
2. Referans2 Bartolome JA, Sozzi A, McHale J, et al (2005): Resynchronization of ovulation and timed insemination in lactating dairy cows, I: use of the Ovsynch and Heatsynch protocols after non-pregnancy diagnosis by ultrasonography. Theriogenology, 63, 1617-1627.
3. Referans3 Bartolome JA, Sozzi A, McHale J, et al (2005): Resynchronization of ovulation and timed insemination in lactating dairy cows, II: assigning protocols according to stages of the estrous cycle, or presence of ovarian cysts or anestrus. Theriogenology, 63, 1628-1642.
4. Referans4 Bisinotto RS, Castro LO, Pansani MB et al (2015): Progesterone supplementation to lactating dairy cows without a corpus luteum at initiation of the Ovsynch protocol. J Dairy Sci, 98, 2515–2528.
5. Referans5 Cavalieri J (2018): Absence of a corpus luteum and relatively lesser concentrations of progesterone during the period of pre-ovulatory follicle emergence results in lesser pregnancy rates in Bos indicus cattle. Anim Reprod Sci, 204, 39-49.
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