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Original Article



Evaluation of semen parameters of Brahman graded bull compared to Holstein graded and Local bulls using Computer Assisted Sperm Analyzer

Md Rafikul Islam, Syed Sakhawat Husain, Md Kutub Uddin Talukder, Md Shahfiqur Rahman.




Abstract

An experiment was conducted to characterize, compare, estimate of heritability, and genetic and phenotypic correlations of semen parameters of three genetic groups of bulls. The study was carried out at the Central Cattle Breeding and Dairy Farm, Saver, Dhaka from April to November, 2015. A total of 16 bulls from three genetic groups namely Brahman graded (8), Friesian graded (5) and Local (3) bulls were selected. Motility and sperm concentration (×106/ml) were observed using Computer Assisted Sperm Analyzer (CASA). Data were analyzed using SAS Computer Package Program, version 9.1.3. Analysis of data showed that, individual genotypes had significant (p

Key words: Bull, semen, heritability, genetic and phenotypic correlation.






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