PRESENT STATUS OF ARTIFICIAL INSEMINATION (AI) AT BIRAL UPAZIL IN DINAJPUR DISTRICT

Abstract

Artificial insemination (AI) is an important reproduction and production performance of cow. The study was conducted in Biral upazila of Dinajpur district during January to June, 2019 employing questionnaire survey to evaluate the status and major constraints of AI service in cow. Data were collected either from directly the owners of cow from Upazila Livestock Office, a total numbers of 976 cows were artificially inseminated during study period and among them 580 cows were found to be conceived. The present study revealed that the overall conception rate in cow was 59.43%. It was found that breed, parity, insemination time, semen placement site and body conditional score (BCS) had significant (P<0.01) effect on conception rate in cow. The conception rate was higher in cross breed (62.40%) cow with good body condition score (69.35%), cow having parity number 3 (67.99%), inseminated between 11 to 16 hours (73.78%) after onset of estrous and cow where semen deposited in the body of uterus (63.44%). The present study also revealed that the major constraints of AI service in the study area were conception failure (27.02%), heat detection problem (22.98%), semen problem (19.19%), insufficiency support of concerned body (15.91%) and artificial insemination technical (AIT) problem (14.90%)