Gilberto Aranda-Osorio - Academia.edu (original) (raw)
Related Authors
University of New England - Australia
Uploads
Papers by Gilberto Aranda-Osorio
The effect of six genotypes (Zebu = Z, European Brown Swiss = EBS, Holstein = H, Z · EBS, Zebu · ... more The effect of six genotypes (Zebu = Z, European Brown Swiss = EBS, Holstein = H, Z · EBS, Zebu · American Brown Swiss = ABS, Z · ABS, Z · H) on carcass and meat characteristics of young bullocks finished under feedlot conditions was tested. The Z · ABS bullocks had the highest (P = 0.001) average daily gain. The highest (P = 0.017) final liveweight was observed with Z · ABS > EBS > H genotypes. The ribeye area was larger (P = 0.012) for EBS bullocks. Both H and EBS bullocks had lowest (P = 0.001) physiological maturity; although the H bullocks had higher (P = 0.006) pelvis and heart fat values. The best (P = 0.014) conformation was obtained with the Z · ABS and Z · EBS genotypes. The greatest amount of marbling (P = 0.001) was obtained with the H genotype. In general, the crossbred genotypes showed better feedlot performance and carcass characteristics, and it seems that Holstein breed could have a an advantage from the marbling score point of view.
The effect of six genotypes (Zebu = Z, European Brown Swiss = EBS, Holstein = H, Z · EBS, Zebu · ... more The effect of six genotypes (Zebu = Z, European Brown Swiss = EBS, Holstein = H, Z · EBS, Zebu · American Brown Swiss = ABS, Z · ABS, Z · H) on carcass and meat characteristics of young bullocks finished under feedlot conditions was tested. The Z · ABS bullocks had the highest (P = 0.001) average daily gain. The highest (P = 0.017) final liveweight was observed with Z · ABS > EBS > H genotypes. The ribeye area was larger (P = 0.012) for EBS bullocks. Both H and EBS bullocks had lowest (P = 0.001) physiological maturity; although the H bullocks had higher (P = 0.006) pelvis and heart fat values. The best (P = 0.014) conformation was obtained with the Z · ABS and Z · EBS genotypes. The greatest amount of marbling (P = 0.001) was obtained with the H genotype. In general, the crossbred genotypes showed better feedlot performance and carcass characteristics, and it seems that Holstein breed could have a an advantage from the marbling score point of view.