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© 2024. This work is published under https://creativecommons.org/licenses/by/2.0/ (the“License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

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 F2a 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.

Details

Title
Improving the efficiency of estrus synchronization in cows
Author
Julanov, Mardan 1 ; Jumatayeva, Kumis 1 ; Koibagarov, Kanat 1 ; Tagayev, Orynbay 2 ; Baitlessov, Yerbulat 3 ; Julanova, Nursulu

 Kazakh National Agrarian Research University, Almaty, Kazakhstan 
 Zhangir Khan University, Uralsk, Kazakhstan 
 Faculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Skopje, Republic of North Macedonia 
Pages
100-106
Section
ORIGINAL ARTICLE
Publication year
2024
Publication date
Mar 2024
Publisher
Network for the Veterinarians of Bangladesh Bangladesh Agricultural Universityת Faculty of Veterinary Science
e-ISSN
23117710
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3034493021
Copyright
© 2024. This work is published under https://creativecommons.org/licenses/by/2.0/ (the“License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.