Status of On-Farm Artificial Insemination Services and Effectiveness of Oestrus Synchronization in Dairy Cattle Under Small-Scale Dairy Farming System.
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Abstract
Background: Hormonal synchronization of oestrous has been an available technology to improve the efficiency of field artificial insemination (AI) in the dairy sector.
Objective: This study was aimed at investigating the breeding practices, status of AI and effectiveness of oestrus synchronization (ES) on small-scale dairy farming in selected districts of the Wolaita Zone.
Methods: Cross-sectional survey and retrospective data on the oestrus synchronization were collected and analysed. Descriptive statistics, chi-square tests, and indexed ranking procedures were applied to summarize the study data.
Results: The predominant mating system practiced by dairy farmers was AI (55.6%), and 73.5% of farmers apply controlled mating. The highest response rate to PGF2α administration was obtained for cattle of Sodo town (89.5%), followed by Boloso Sore (78.8%). A 30%-45.2% pregnancy rate was obtained across the study districts. Crossbred cattle have shown significantly (p > 0.001) higher response (87.1%) and pregnancy rates (47.9%) than the local animals. Likewise, 9.6%-18.5% of the birth rate was obtained from this study. Farmers' overall perceptions and desire to continue using oestrus synchronization were improving as a result of their application experiences over time. Moreover, shortage of AI inputs and AI technicians, heat detection skills, and inconsistency of the AI service during festivals, holidays, and weekends were reported as the major challenges prevailing in the study districts.
Conclusions: The study provided insights on improving input supply, accurate heat detection and intensified cattle management are necessities to enhance field AI services and increase pregnancy rates in synchronized animals.
期刊介绍：
Veterinary Medicine and Science is the peer-reviewed journal for rapid dissemination of research in all areas of veterinary medicine and science. The journal aims to serve the research community by providing a vehicle for authors wishing to publish interesting and high quality work in both fundamental and clinical veterinary medicine and science.
Veterinary Medicine and Science publishes original research articles, systematic reviews, meta-analyses, and research methods papers, along with invited editorials and commentaries. Original research papers must report well-conducted research with conclusions supported by the data presented in the paper.
We aim to be a truly global forum for high-quality research in veterinary medicine and science, and believe that the best research should be published and made widely accessible as quickly as possible. Veterinary Medicine and Science publishes papers submitted directly to the journal and those referred from a select group of prestigious journals published by Wiley-Blackwell.
Veterinary Medicine and Science is a Wiley Open Access journal, one of a new series of peer-reviewed titles publishing quality research with speed and efficiency. For further information visit the Wiley Open Access website.
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