Effects of genetic and non-genetic factors on growth traits of high yielding dairy seed calves and genetic parameter estimates

  • Syed Mohammad Ashiqur Rahman Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh 2202
  • Mohammad Shamsul Alam Bhuiyan Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh 2202
  • Abul Kashem Fazlul Haque Bhuiyan Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh 2202
Keywords: Genetic, Growth Traits, Heritability, Non-genetic, Seed Calves

Abstract

The  study  was  conducted  to  know  the  effects  of
several  genetic  and  non-genetic  factors  like  season,
sex, year of birth, genotype of calves and milk yield
of  dam  associated  with  growth  performance  of
crossbred calves. Data were collected from registered
farmers during the period of May, 2011 to April, 2013.
Birth weight, three-month weight, six-month weight,
weaning  weight  and  heritability  estimates  of  those
growth performances were performed using a total of
82 registered calves which had pedigree information
having the genotypes of 25% Local - 75% Friesian and
37.5% Local - 62.5% Friesian. The average birth, three-
month, six-month and weaning weight of calves were
29.33,  64.32,  99.06  and  151.77  kg,  respectively.  The
effects of non-genetic factors like sex, season of birth
and  genotype  were  non-significant  (P>0.05)  for  the
traits  birth weight, three-month, six-month, weaning
weight  and  average  daily  gain  of  calves.  However,
year of birth was found significant on birth (P<0.01),
three-month and six-month (P<0.05) weight; but non-
significant  (P>0.05)  on  weaning  weight  and  average
daily  gain  of  calves.  The  heritability  estimates  were
0.40±0.09,  0.46±0.08,  0.39±0.12  and  0.50±0.12  for  the
traits  birth  weight,  three-month  weight,  six-month
weight  and  weaning  weight,  respectively.  Estimated
heritabilities  of  live  weights  suggest  that  individual
own  performance  basis  selection  would  be  more
effective for increasing growth and therefore, should
be  paid  more  emphasis  in  cattle  improvement
program.

 

http://dx.doi.org/10.5455/javar.2015.b116     

 

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Abstract
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PDF
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Published
2015-12-31
How to Cite
Rahman, S., Bhuiyan, M., & Bhuiyan, A. K. (2015). Effects of genetic and non-genetic factors on growth traits of high yielding dairy seed calves and genetic parameter estimates. Journal of Advanced Veterinary and Animal Research, 2(4), 450-457. Retrieved from https://www.banglajol.info/index.php/JAVAR/article/view/26093
Section
Original Articles