Back to Search Start Over

The Study on Days Open and Some Reproductive Variables in Traditional Dairy Farms in Miandoab, West Azerbaijan Province, Iran.

Authors :
Keshipour, Hadi
Bahonar, Alireza
Vodjgani, Mehdi
Anassor, Ehsan
Source :
Journal of Veterinary Research / Majallah-i Taḥqīqāt-i Dāmpizishkī University; Jun2024, Vol. 79 Issue 2, p61-69, 9p
Publication Year :
2024

Abstract

BACKGROUND: Traditional dairy farms produce low milk. Reproductive performance is very important for their economic viability. "Days open" is one of the reproductive performance measures, including the time between parturition and the next conception of a dairy cow. OBJECTIVES: This study aims to investigate days open and some reproductive characteristics, and examine the effect of these characteristics on days open in traditional dairy farms. METHODS: In this study, a questionnaire was used to collect data from 870 dairy cows belonging to 363 traditional dairy farms. This research was carried out in Miandoab County, in West Azerbaijan province, Iran. To determine the effects of ovarian cyst, dystocia, abortion, and parity of dam on days open, the multiple linear regression analysis in SPSS software was used. RESULTS: In the cows, the mean days open in the last calving was 132.28 days, and the mean insemination for each pregnancy was 2.27 inseminations. Prevalence of dystocia, abortion, and ovarian cysts was 78%, 1.26%, and 1.95%, respectively. The results of Cox regression showed that parity, abortion, ovarian cysts, and dystocia significantly increased days open. The dystocia in the cows was prevalent mostly due to unknown causes and the owner's hasty intervention during the natural parturition process. CONCLUSIONS: Dystocia, parity, abortion, and ovarian cysts have a significant effect on days open in traditional dairy farms. By training livestock farm workers on issues related to the reproductive management of dairy cows and their parturition period, we can expect an improvement in the reproductive performance of traditional dairy farms. [ABSTRACT FROM AUTHOR]

Details

Language :
Persian
ISSN :
20082525
Volume :
79
Issue :
2
Database :
Complementary Index
Journal :
Journal of Veterinary Research / Majallah-i Taḥqīqāt-i Dāmpizishkī University
Publication Type :
Academic Journal
Accession number :
178262908
Full Text :
https://doi.org/10.22059/jvr.2023.358975.3345