A Preliminary Estimate of the Heritability of Uterine Cervical Diameter in Tropically Adapted Beef Cattle
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چکیده
Mean uterine cervical diameter, parity and parentage information was recorded from 246 Santa Gertrudis females in southern Queensland. A linear model was fitted to estimate the effects of parity on cervical diameter. The sire variance component was also analysed to provide an estimate of the heritability of cervical size. The effect of parity on cervical size was found to be highly significant (α= 0.01). As level of parity increased so did cervical size. The sire variance component was significant resulting in a heritability of 0.6±0.27 This suggests that uterine cervical size is a moderate to highly heritable trait.
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تاریخ انتشار 2003