Articles | Volume 67, issue 4
https://doi.org/10.5194/aab-67-533-2024
https://doi.org/10.5194/aab-67-533-2024
Original study
 | 
08 Nov 2024
Original study |  | 08 Nov 2024

The effect of different doses of estradiol benzoate on follicle development and twin birth in beef cattle with induced superovulation

Weibin Zeng, Lei An, Yanping Wang, Xinli Gu, Yusheng Qin, and Jianhui Tian

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Cited articles

Bergfelt, D. R., Kulick, L. J, Kot, K., and Ginther, O. J.: Follicular and hormonal response to experimental suppression of FSH during follicle deviation in cattle, Theriogenology, 54, 1191–1206, 2000. 
Bodensteiner, K. J., Kot, K., Wiltbank, M. C., and Ginther, O. J.: Synchronization of emergence of follicular waves in cattle, Theriogenology, 45, 1115–1128, 1996. 
Burke, C. R., Day, M. L., Bunt, C. R., and Macmillan, K. L.: Use of a small dose of estradiol benzoate during diestrus to synchronize development of the ovulatory follicle in cattle, J. Anim. Sci., 78, 145–151, 2000. 
Burke, C. R., Mussard, M. L., Gasser, C. L., Grum, D. E., and Day, M, L.: Estradiol benzoate delays new follicular wave emergence in a dose-dependent manner after ablation of the dominant ovarian follicle in cattle, Theriogenology, 60, 647–658, 2003. 
Burke, C. R., Cárdenas, H. L., Mussard, M., Gasser, C. L., and Day, M. L.: Steroidogenic changes and steady state amount of messenger RNA encoding steroidogenic enzymes, gonadotropin receptors and cell-death signalling in the dominant ovarian follicle during estradiol-induced atresia in cattle, Anim. Reprod. Sci., 99, 244–257, 2007. 
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Short summary
Cattle are monovular and naturally single-birth animals, producing only one calf per year. In this work, we evaluated the effect of inducing twin calves in beef heifers using different hormone treatment regimes. Animals were randomly selected for the procedure that induced double/triple ovulation via hormone treatment. This method may serve to promote twin production in beef cattle.