PMID- 35701792 OWN - NLM STAT- MEDLINE DCOM- 20220616 LR - 20220716 IS - 1746-6148 (Electronic) IS - 1746-6148 (Linking) VI - 18 IP - 1 DP - 2022 Jun 14 TI - Success rate of artificial insemination, reproductive performance and economic impact of failure of first service insemination: a retrospective study. PG - 226 LID - 10.1186/s12917-022-03325-1 [doi] LID - 226 AB - BACKGROUND: A retrospective cohort study using a 10 year artificial insemination (AI) and cow reproductive performance data was conducted to study the success rate of AI; associations between effectiveness of AI and breed, AI season and, number of service per conception, and economic impact of failure of FSC in Dessie town, Dessie zuria and Kutaber districts. A total of 3480 dairy cows' AI and reproductive performance records which were performed between 2003 and 2013 in the three selected districts of South Wollo were used. The economic losses and costs for cows that failed to conceive at their first AI associated with the larger number of days open were estimated. RESULT: The prevalence of conception has a statistically significant difference between breeds of cows (P = 0.019). The non-return rate for first service was 58.54%. The median days to first service (DFS), inter-service interval (ISI) and gestation length (GL) were 126, 30 and 278 days respectively. Whereas, the mean + SD days open, calving interval (CI), number of inseminations (NOI) and number of services per conception (NSPC) were 147.2 +/- 60.26, 424.5 +/- 60.55, 1.14 +/- 0.38 and 1.15 +/- 0.39 respectively. Based on AI season there was a significant difference in conception between winter and spring (P = 0.021). There is a 45.04 days extension in the mean calving to conception interval in cows that did not conceive at their first AI but conceived by 2nd and 3rd AI than in cows that did conceive at their first AI. A total of 21,665.3 ETB extra costs was spent on reproductive treatment and other management for cows that failed to conceive at their first AI but conceived by second and third service. In cows that did not conceive totally the owner losses on average 473.7 ETB per cow per day extra costs until the cows will be culled. CONCLUSION: Therefore to increase the conception rate and decrease the economic loss the owners of the dairy cows should supervise the cows regularly and should be trained on how to identify cows on estrous, the AI technicians should be trained to conduct the AI service accurately. CI - (c) 2022. The Author(s). FAU - Tadesse, Belege AU - Tadesse B AD - School of Veterinary Medicine, Wollo University, Dessie, Ethiopia. tadessebelege@gmail.com. FAU - Reda, Abadi Amare AU - Reda AA AD - School of Veterinary Medicine, Wollo University, Dessie, Ethiopia. FAU - Kassaw, Nuredin Teshale AU - Kassaw NT AD - School of Veterinary Medicine, Wollo University, Dessie, Ethiopia. FAU - Tadeg, Wedajo AU - Tadeg W AD - Kombolcha College of Agriculture Affiliated to Wollo University, Kombolcha, Ethiopia. LA - eng PT - Journal Article DEP - 20220614 PL - England TA - BMC Vet Res JT - BMC veterinary research JID - 101249759 SB - IM MH - Animals MH - Breeding MH - Cattle MH - *Dairying MH - Female MH - Humans MH - *Insemination, Artificial/veterinary MH - Lactation MH - Reproduction MH - Retrospective Studies PMC - PMC9199250 OTO - NOTNLM OT - AI OT - Cows OT - Dairy cattle OT - Economic loss OT - Herd management OT - Reproductive performance COIS- The authors declare that they have no competing interests. EDAT- 2022/06/15 06:00 MHDA- 2022/06/18 06:00 PMCR- 2022/06/14 CRDT- 2022/06/14 23:39 PHST- 2022/02/02 00:00 [received] PHST- 2022/05/26 00:00 [accepted] PHST- 2022/06/14 23:39 [entrez] PHST- 2022/06/15 06:00 [pubmed] PHST- 2022/06/18 06:00 [medline] PHST- 2022/06/14 00:00 [pmc-release] AID - 10.1186/s12917-022-03325-1 [pii] AID - 3325 [pii] AID - 10.1186/s12917-022-03325-1 [doi] PST - epublish SO - BMC Vet Res. 2022 Jun 14;18(1):226. doi: 10.1186/s12917-022-03325-1.