Occurrence and risk factors of repeat breeding on household dairy cows of Hathazari in Chattogram

Abstract

Repeat breeding is one of the important problems in the dairy sector of Bangladesh causing economic loss due to reduced production and additional cost on the management of cows. This study was conducted to estimate the occurrences of repeat breeder and its frequency distribution in household dairy cows. Total 120 cows from 15 selected households in Hathazari Upazilla, Chattogram during January to March 2018 were considered for this study. Repeat breeding defined as cows less than 10 years old failure to conceive after 3 or more regularly successive services (AI/Natural) in the absence of detectable abnormalities. Households were selected with the history of cow(s) failure to concept even after three or more regular services without any detectable abnormality. Cow’s level factors, households level factors, and few organisms in uterine environment were studied as risk factors on repeat breeding. The results revealed 25% (N=120) repeat breeder cows in the household dairy. Cows level factors find out that aged with >6-8 years (33%) and having uterine infection (52%) had significantly influenced the occurrence of repeat breeding. In regards to household level factors, minimum level of farmer’s education, poor drainage system, and dirty cows were influenced (P≤0.05) repeat breeding cows. Uterine fluid bacteriological culture showed that Staphylococcus spp. (76%) and E. coli (13%) were commonly found in repeat breeder cows.