Prevalence and risk factors of repeat breeding on household dairy farms of Hathazari in Chittagong

Abstract

Repeat breeding is one of the important problems in dairy sector in Bangladesh. This study was conducted to estimate the proportionate prevalence of repeat breeder cows and its frequency distribution in 120 cows from 15 selected household dairy farms in Hathazari Upazilla, Chittagong during the internship rotation of January to March 2018. A repeat breeding cow may be defined as cows failure to conceive from 3 or more regularly spaced services in the absence of detectable abnormalities. Data at different levels was collected through questionnaire interview. All farms had history of the current repeat breeding of one or more animals. Overall, the animal level proportionate prevalence of repeat breeder was 25 % (N=120). Cows aged with >6-8 years (33%) and having uterine infection (52%) had significantly higher prevalence of repeat breeding than that of the counter group whereas cows with parity 3 (22.39%) were more prone to breed breeder. Uterine fluid samples were collected from those 30 repeat breeder cows to know the distribution of organisms. Staphylococcus (76%) and E. coli (13%) were commonly found on bacteriological culture. It is concluded that the overall animal level prevalence of repeat breeder was high. Older animal and uterine infection were likely risk factors for repeat breeder. Staphylococcus was found common organism in uterine fluid.