Abstract
The present study was to evaluate the reproductive and productive performance (RPP) of Indigenous (n=145) and Nili-Ravi cross-bred (n=55) dairy buffalo in relation to age, parity, body weight and body condition. A total of 200 buffalo cows were randomly selected and interviewed to collect data on reproductive and productive performance of buffalo cows of Rajshahi district by using pre-tested questionnaire during the period from January 2015 to December 2015. The average mean ± SD value of reproductive and productive performances were as age at puberty (AP), age at first calving (AFC), gestation length (GL), post-partum heat period (PPHP), milk yield per day (MYPD), lactation length (LL), birth weight of calf (BWC) and calving interval (CI) were recorded as 25.05±4.00 months, 35.26±4.14 months, 308.28±12.46 days, 84.00±25.95 days, 3.59±0.56 litre, 202.76±33.54 days, 28.79±4.23 kilogram and 461.36±15.41 days, respectively. Nili-Ravi cross-bred buffalo cow had shown better RPP than Indigenous. The genotype of buffalo cows had significant effect (p<0.05) on most of the RPP except AP, AFC and CI. Age of buffalo had also significant effect (p<0.05) on GL, PPHP and BWC and middle age (4 to < 7yrs) observed good RPP. The best RPP were recorded in 2nd parity than others and also significant effect (p<0.05) on GL, MYPD and BWC. Body weight and body condition of buffalo had significant effect (p<0.05) on PPHP, BWC and MYPD. The body weight of >350 kg and very good body condition groups were observed better reproductive performance. It could be concluded that the buffalo owners of these areas do not follow any scientific method of buffalo husbandry; they just follow traditional rearing systems. Very recently, a few farmers started farming of the mostly Indigenous buffalo cows for dairy purpose at Rajshahi region of Bangladesh.
 Asian J. Med. Biol. Res. September 2020, 6(3): 536-547
Highlights
Buffalo cow rearing is one of the most important occupations
Effects of genotypes on reproductive and productive performance of buffalo cows The effects of genotype on reproductive and productive performance of buffalo cows are summarized in Table 1 and Figure 2
The present study shown that the average age at puberty of buffalo cows were 25.05±4.00 months, which is lower than the other study
Summary
The success of any dairy farm depends upon efficient productive and reproductive performances of a dairy animal. Productive performance is determined to a great extent by the milk yield at first lactation and the farm, followed by the age at first calving (Ilieva and Peeva, 2007). The buffalo hold strategic place in overall livestock economy of Bangladesh and serve three important purposes viz. Milk production, meat and draught power (Ghaffar et al, 1991). Contribution of cattle to national economy is not static rather varies depending upon population size and location. The domestic buffalo is an important animal in the agricultural economy of many tropical and subtropical countries and being an integral part of farming system (Suhail et al, 2009). Buffalo is contributing 12.1% to the world, 38.0% in
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