Vet World   Vol.13   December-2020  Article-4

Factors affecting conception rate after the first artificial insemination in a private dairy cattle farm in North Algeria

Background and Aim: This study analyzed risk factors influencing the conception rate at the first artificial insemination (CR1) in dairy cows reared in the plain of Mitidja, which is considered a major dairy region in North Algeria.

Materials and Methods: A total of 1054 lactations were used in the relational study of fertility conducted using the multivariable logistic regression model using the odds ratio (OR).

Results: The breeding season had a specific effect on fertility; the first service was often followed by pregnancy when performed during autumn (AUT) (OR=1.67, p<0.05) and spring (SPR) (OR=1.65, p<0.05). The chances of obtaining conception during the first service increased significantly for a waiting period (WP) (interval between calving and time to first service) of 50-100 days postpartum (DPP) (OR=1.67, p<0.05).

Conclusion: From this study, it can be concluded that no specific effect was observed relative to the breed and parity. Furthermore, CR1 significantly increased after summer calving when the first services were performed during SPR and AUT and a WP after 50 DPP. Keywords: artificial insemination, calving to conception interval, conception rate, dairy cow, season, waiting period.

Keywords: artificial insemination, calving to conception interval, conception rate, dairy cow, season, waiting period.

How to cite this article: Souames S, Berrama Z (2020) Factors affecting conception rate after the first artificial insemination in a private dairy cattle farm in North Algeria, Veterinary World, 13(12): 2608-2611.

Received: 26-03-2020  Accepted: 23-10-2020     Published online: 09-12-2020

Corresponding author: Samir Souames   E-mail: s.souames@ensv.dz

DOI: 10.14202/vetworld.2020.2608-2611

Copyright: Souames and Berrama, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.