iarjalsIARJALSIARJALS2708-5104https://doi.org/10.47310/Iarjals.2021.v02i01.79Factors Affecting the First Service Pregnancy Rate in Cows at The Selected Coastal Region of BangladeshMd. ShifulIslamAshitKumarPaulMd.SelimAhmedHimangsuSarkerDipaRaniPalDepartment of Medicine, Surgery and Obstetrics, Faculty of Animal Science and Veterinary Medicine, Patuakhali Science and Technology University, Outer Campus, Babugonj, Barishal-8210, BangladeshDepartment of Clinical Courses, Faculty of Veterinary and Animal Sciences, Gono Bishwabidyalay, Savar, Dhaka, BangladeshThe aim of this study is to evaluate the first service pregnancy rate in cows at the selected coastal areas of Bangladesh. The study was conducted during the period from September 2015 to September 2016 in 10 Upazilas in Barisal district of Bangladesh. Data were recorded by checking their record book, collecting information from Upazila Livestock Office and asking the farmer. A total of 1431 cows were selected considering potential factors of, breed, age, parity, body weight, time of artificial insemination (AI) and feeding system. A descriptive analysis expressed as binary logistic regressions were done to measure the association and strength of association of different factors. The overall first AI pregnancy rate (PR/FAI) was 29.1%.  The PR/FAI of Local, Cross and Sahiwal breed were 28.3, 30.9 and 20.0%, respectively, In the experiment the PR/FAI of cows aged on 2.0 to 4.0, 4.1 to 8.0, 8.1 to 12 and, 12.1 to 16.0 were 32.5%, 27.2%, 26.2% and 33.3%, respectively the PR/FAI of 100-150, 151-200, 201-250 and >251 kg body weight was 28.5, 30.5, 29.4 and 31.7%, respectively. In this experiment, The PR/FAI of Parity-0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 were 29.3, 30.1, 28.1, 6.9, 27.4, 29.7, 29.4, 32.0, 50.0 and 20.0%, respectively. The PR/FAI at 0 to 8 hr, 8.1 to 16 hr and 16.1 to 24 hr were 39.1, 41.3 and 41.2%, respectively. The PR/FAI of good, moderate and poor feeding system of cows was 45.1, 33.5 and 21.1%, respectively. It may be concluded that the first service pregnancy rate is not significantly influenced by the breed, age and parity of cows. It is suggested that training on dairying with community veterinary care improves the PR/FAI in Bangladesh.