Abstract: Total lactation (Tolac-kg) and lactation days (Lacdays-days) were measured to assess the performance of Holstein Friesians, Bunaji and their Cross breds using records from 70 animals consisting of 18 pure bred Holstein-Friesians dams (HF dam), 18 pure bred Friesian daughters (HF daughters), 17 Bunaji dams (BB dams) and 17 Bunaji daughters (BB daughter-F1 cross bred). The natural logarithm procedure was applied to the original data to homogenize the variance and the mean. This was then analysed using the general linear model procedure in a model that considered the damís records as the independent and the daughterís records as the dependent variables. Result showed that Tolac for the 3 cattle genotype was significantly (p<0.05) different, while Lacdays showed no significant (p>0.05) difference, when their means were compared.
L.J. Isaac and O. Olutogun , 2007. The Performance of Holstein-Friesian, Bunaji and their Cross Breds in a Tropical Environment. Journal of Animal and Veterinary Advances, 6: 129-131.