Risk factors for postpartum anestrus in crossbred cows in Bangladesh

Authors : Md Mostofa KAMAL, Md Musharraf Uddin BHUIYAN, Nasreen PARVEEN, Harry W MOMONT, Mohammed SHAMSUDDIN

Pages : 151-156

Doi:10.3906/kim-1208-10

View : 17 | Download : 12

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Ultrasonography and a structured questionnaire were used in a cross-sectional study to gather data on the prevalence and risk factors for anestrus in crossbred cows at =>60 days postpartum in 273 smallholder farms. The prevalence of anestrus was 18%. The odds ratio insert ignore into journalissuearticles values(OR); for true anestrus was 17.52 and 2.81 times higher insert ignore into journalissuearticles values(P < 0.05); in cows with poor insert ignore into journalissuearticles values(=3.5); body condition score insert ignore into journalissuearticles values(BCS);, respectively, compared to those with optimal BCS insert ignore into journalissuearticles values(2.5-3.5);, 2.82 times higher in suckled than in nonsuckled cows insert ignore into journalissuearticles values(P = 0.03);, and 2.53 times higher in cows that calved during the cold season than in those that calved during the hot season insert ignore into journalissuearticles values(P = 0.03);. The OR for anestrus was 1.62 times higher insert ignore into journalissuearticles values(P = 0.017); in cows managed by an employee than in those managed by the farmers themselves insert ignore into journalissuearticles values(P = 0.001);, and 2.66 times higher insert ignore into journalissuearticles values(P = 0.003); in small farms insert ignore into journalissuearticles values(=11 cows);. The OR was 0.71 to 0.46 times lower in farms having a guaranteed market to sell milk than those with an uncertain traditional milk market insert ignore into journalissuearticles values(P < 0.05);. Maintaining optimal BCS of cows, farmers` training on management of cattle reproduction, and development of a market linkage to sell milk would improve the number of cows for breeding by 60 days postpartum.
Keywords : Key words Postpartum, anestrus, risk factors, crossbred cows