PREVALENCE AND THERAPEUTIC MANAGEMENT OF ANOESTRUS IN CATTLE AT SHERPUR UPAZILA OF BANGLADESH

Abstract

Reproductive and production disorders of dairy cattle significantly reduce their productivity which is of great concern of dairy producers worldwide because most reproductive disorders adversely affect the future fertility. Rural people of Bangladesh rear cow mainly for milk production. Milk production is related with parturition. There are many cows suffering from reproductive disturbance like anestrus that delayed conception and parturition. Therefore, it is necessary to reduce the factors those are affecting anestrus in dairy cows. The present study was conducted to determine the prevalence of anoestrus in cattle in relation with age, seasonal variation and breed along with evaluation of the therapeutic response of different commercially available nutritional drugs against anoestrus in cattle at Sherpur Upazila of Bangladesh. In this investigation, out of 977 dairy cattle, 109 were positive for anoestrus. Active surveillance system was used to collect data from the selected farms through questionnaire survey over a period of one year from January 2018 to December 2018. The investigation revealed that the overall prevalence of anoestrus in cattle was 11.16 %. The highest prevalence of anoestrus was 13.51% found in animals greater than 4 years of age and moderate 10.24% in heifer and lowest 8.90% in animals of 3-4 years age group. It was recorded that 15.8% prevalence was significantly (p<0.05) found higher in rainy season followed by 10.75% in winter season and 7.51% in summer season. Cross bred animals showed significantly (p<0.01) higher 12.61% anoestrus than local breed 8.20%. Animal under the study taken for nutritional therapeutic management reveal that combination therapy showed more effective result than the single one. Results indicated unsatisfactory feeding, housing, and health management practices are the main cause of low fertility of dairy cows. Lack of scientific knowledge, low access to breeding, and health services further contributed to low productivity and fertility.