Int. J. Biosci.13(4), 444-449, October 2018
Growth traits and transmission of genetic potential of local rabbits were studied at Rabbitory unit of the University of Agriculture Peshawar. A total of 48 breeding rabbits (40 does and 8 bucks) were used in the study. General linear model (GLM) was used to study the effect of dam and sire on growth parameters. Average weaning weight and body weight gain was 0.449±0.04 and 0.615±0.15g, respectively. Mean heart girth and body length was found 15.33±2.21 and 15.74±2.09, respectively. Litter size was found 4.49±1.15. Dam and sire significantly (P < 0.0001) affected litter size, weaning weight, body weight gain, heart girth and body length. Positive and significant correlation (0.93, P < 0.0001) was found between body weight gain and heart girth followed by high positive correlation (0.90) between body weight gain and body length. Heritability estimate (h2) for weaning weight and body weight gain was 0.94 and 0.14, respectively, while (h2) for heart girth and body length was 0.15 and 0.08, respectively. It was concluded from the study that dam and sire had significant and linear affect on weaning weight, body weight gain and other morphometric traits. Weaning weight heritability estimates indicating it as a candidate trait for selection in local rabbits. Relationship between heart girth and body weight is much stronger and may be consider in selective breeding.
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