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Journal of Biological Sciences
  Year: 2004 | Volume: 4 | Issue: 4 | Page No.: 452-455
DOI: 10.3923/jbs.2004.452.455
Genetic and Phenotypic Parameters of Milk Production Traits of Crossbred Cattle in a Selected Farm of Bangladesh
Ali Reza Ahmed , Sarder Safiqul Islam , Nargis Khanam and Ayesha Ashraf

Abstract:
The study was conducted in Milk and Cattle Improvement Farm, Bogra, Bangladesh from 1995 to 2003 with a view to estimate genetic and phenotypic parameters of milk production traits of crossbred cattle. The milk production traits considered in the study were lactation length, yield per lactation, pick yield per day and daily milk yield. Heritability was calculated from parental half-sib relationship. The average mean of lactation length, yield per lactation, pick yield per day and daily milk yield were 338.19 ± 9.98 days, 1336.88 ± 60.23, 6.02 ± 0.17 and 3.93 ± 0.12 kg, respectively. The heritability estimates of lactation length, yield per lactation, pick yield per day and daily milk yield were 0.028 ± 0.01, 0.44 ± 0.10, 0.24 ± 0.08 and 0.20 ± 0.07, respectively, where the repeatability estimates of those traits were 0.10 ± 0.09, 0.14 ± 0.09, 0.36 ± 0.10 and 0.35 ± 0.10, respectively. The effects of genetic groups on various traits were non-significant except lactation length (P<0.01). The effects of parity on all traits under consideration were non-significant.
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How to cite this article:

Ali Reza Ahmed , Sarder Safiqul Islam , Nargis Khanam and Ayesha Ashraf , 2004. Genetic and Phenotypic Parameters of Milk Production Traits of Crossbred Cattle in a Selected Farm of Bangladesh. Journal of Biological Sciences, 4: 452-455.

DOI: 10.3923/jbs.2004.452.455

URL: https://scialert.net/abstract/?doi=jbs.2004.452.455

 
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