Context: Anestrus cow is big problem in worldwise, share the feed, fodder and water resources and colossal burden to the animal owner.
Objective: This study was carried out to evaluate the effect of individual cows factor on prevalence of anestrus in heifer and postpartum cows at Rajshahi region of Bangladesh.
Materials and Methods: Data were collected by interviewing the owner of the cows using questionnaires from selected private dairy farms at two districts namely Rajshahi and Natore. Total 294 dairy cows were selected for evaluating the prevalence of anestrus cows due to various risk factors such as age, breed, genetic composition, body weight, body condition score and parity during the period from July 2017 to June 2018. The raw data were then sorted, computed, coded and statistically analyzed with the help of latest version of SPSS statistical software package.
Results: The present findings revealed that, the overall prevalence of anestrus arts was 54.4%. The age, breed, genetic composition, body weight, body condition score and parity of cows influenced the prevalence of anestrus in cows. The highest prevalence of anestrus were 60%, 55.00%, 66.66%, 56.81% and 62.33% in <4 year’s age, crossbred, Local x Sahiwal genetic composition, poor body condition and heifer group of dairy cows respectively at Rajshahi region, Bangladesh. On the other hand the lowest prevalence of anstreus were recorded 39.39%, 50.00%, 50.00%, 51.21% and 42.10% in >6 years age, indigenous breed, local non descriptive genetic composition, good BCS and 3rd parity cows, respectively.
Conclusion: The prevalence of anestrus was higher in young, crossbreed, Local x Sahiwal, Poor body condition and heifer cows.