Assessment of factors affecting conception rate in cross bred cows following artificial insemination under field conditions
Keywords:
Artificial insemination, AIDA, Cross bred cows, Conception rateAbstract
Studies were conducted to identify the factors affecting fertility in cross bred cows following
artificial insemination (Al) under field conditions. A field survey was carried out on 446 crossbred cows of
89 farmers inseminated by 34 AI technicians. The data was analyzed by Artificial Insemination Database
Application (AIDA) a software provided by F AO/IAEA Vienna, Austria. The I•• service conception rate
(FSCR) and the overall conception rate (OCR) were 29.4% and 38%, respectively. The OCR was better
(48.8%) in cows inseminated 18-23 hours after the onset of estrus. Inseminations done by professional
degree holders yielded better conception rate (48.7%) as compared to those done by diploma holders
(20.4%) or by progressive dairy farmers (30.2%). The OCR was significantly (P<0.05) higher (51.6%) when
inseminations were done during "standing estrus". It is concluded that the quality of estrus, semen,
management and expertise of AI technician have a strong bearing on the success of AI in cross bred cows.