Improving the efficiency of estrus synchronization in cows

Authors

  • Mardan Julanov Kazakh National Agrarian Research University, Almaty, Kazakhstan
  • Kumis Jumatayeva Kazakh National Agrarian Research University, Almaty, Kazakhstan
  • Kanat Koibagarov Kazakh National Agrarian Research University, Almaty, Kazakhstan
  • Orynbay Tagayev Zhangir Khan University, Uralsk, Kazakhstan
  • Yerbulat Baitlessov
  • Nursulu Julanova Kazakh National Agrarian Research University, Almaty, Kazakhstan

Keywords:

Fertility; cows; ASD-2f; electrostimulation; estradiol-17β; estrus.

Abstract

Objective: This study aimed to determine the effects of biologically active substances and electrical stimulation of the uterus in cows on the effectiveness of estrus synchronization. Materials and Methods: Ninety (n = 90) Kazakh white-headed cows were synchronized with two injections of gonadotropin-releasing hormone on days 0 and 9 and prostaglandin F2α on day 7. The cows were divided into six groups and, during the protocol, treated with biologically active substances (Tetramag, Selevetum, antiseptic-stimulator Dorogov 2 fraction, groups 2, 3, and 4). Cows in groups 5 and 6 were treated with the same substances but additionally had electrical stimulation of the uterus, while cows in group 1 were left untreated and served as a control. Results: The results have shown that on Day 0, no differences were observed in E2 concentrations between the groups. However, on the 10th day, a significant disparity was noted in the E2 level among cows in group 6 compared to groups 2, 3, 4, and the control group. Conversely, no significant differences were observed between groups 5 and 6. Likewise, the fertility rate in cows from group 6 was significantly higher compared to groups 2, 3, 4, and the control group, with no significant differences between groups 5 and 6. Conclusion: It can be concluded that the utilization of electrical stimulation of the uterus and the inclusion of certain biological substances during the estrus synchronization protocol demonstrate a positive effect on the reproductive performance of beef cattle in Kazakhstan.

Adv. Vet. Anim. Res., 11(1): 100-106, March 2024

http://doi.org/10.5455/javar.2024.k753

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Published

2024-03-31

How to Cite

Julanov, M., Jumatayeva, K., Koibagarov, K., Tagayev, O., Baitlessov, Y., & Julanova, N. (2024). Improving the efficiency of estrus synchronization in cows. Journal of Advanced Veterinary and Animal Research, 11(1), 100–106. Retrieved from https://banglajol.info/index.php/JAVAR/article/view/75985

Issue

Vol. 11 No. 1 (2024)

Section

Original Articles

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Copyright (c) 2024 Mardan Julanov

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