Productive and Reproductive Performance and Reproductive Disorder of Cross-breed Cattle Under Farming Condition in Pekua, Cox’s bazar, Bangladesh

Abstract

The study was conducted to observe the productive and reproductive performances and disorders of dairy cattle in farming condition in rural area. The selected study area was Pekua sadar upazila and survey was performed from 1st February 2021 to 30 April 2021. The data reported that about 36.67% of farmers were landless, 30 %, 13.33 % & 20.00 % were small and medium sized and large farmers respectively. The data showed that most of the cattle farmers were poor, illiterate & had a high number of family members. For obtaining this goal, 100 cross-bred dairy cattle were observed. 75% Holstein Friesian(HF) × 25% Local Breed(LC), 50% Local Breed(LC) × 50% Sahiwal (SL) and 75% Holstein Friesian(HF) × 25% Sahiwal (SL) cows were investigated and evaluated for their productive and reproductive performance. In case of productive performance, the study found that the average milk production in HF×LC, LC× SL and HF×SL cross breeds were 12.28±1.5 liters, 7.6±1.2 and 10.61±1.44 liters respectively. The average lactation length in HF×LC, LC× SL and HF×SL cross breeds were found 265.45±.0.87days, 255.50±0.56days and 270.33±0.61days respectively during which the average peak lactation period was found 2.67±0.14, 2.33±0.15 and 2.56±0.08 months respectively. The reproductive performance found in the study showed that in HF× LC, the average age of puberty and age of first calving were 16.25±0.46 and 24.89±0.18 months, in LC×SL were 20.22±0.06 and 28.55±0.35 months and in HF×SL were 19.32±0.08 and 28.08±0.37 respectively. The average gestation period in HF×LC, LC× SL and HF×SL were found 278.38±0.15, 281.28±0.11 and 280±0.17 days in order and average inter-calving period were 18.55±0.04 and 18.45±0.05 and 18.42±0.05 months respectively. The average postpartum heat of the HF×LC, LC× SL and HF×SL was found 56.87±0.77, 85.33±1.24 and 70.53±1.12days in turn and the average service per conception were found 1.86±0.18days, 1.93±0.18 and 1.70±0.22 days respectively. Considering all parameters cross breed cattle can be reared in commercial farm condition in Bangladesh.