Fattening and carcass value of young Black Pied bulls in relation to intensity of feeding. 2. Carcass value of young bulls at different intensities of feeding and slaughter weights

Neumann, W.; Baudisch, H.P.; Nicol, R.; Weiher, O.; Rohde, E.

Archiv fur Tierzucht 18(6): 355-365

1975


Accession: 000376876

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Abstract
2. The 88 young German Black Pied bulls with feeding of medium intensity throughout or an alternating pattern of intensity were killed at 420 or 520 kg bodyweight. At 520 kg the intensity of feeding did not affect at all, or only slightly, carcass yield, the proportions of cuts of different values or other characteristics or composition, except for total internal fat, which was influenced significantly. Increase of slaughter weight from 420 to 520 kg changed average values for nearly all the carcass criteria, although results varied between groups; on average, there was an increase in carcass yield and weight of fat, the fat content of carcass rose by 4.03% and those of crude protein and bone fell by 0.95 and 0.83%, the proportion of high-value cuts declined and that of low-value cuts increased. On the basis of equal slaughter weight, calculation of correlation coefficients showed that renal fat weight could be used for estimating total internal fat weight and the fat content of the half-carcass. Relations between renal fat weight and the proportions of cuts of different values were not significant, except, at 420 kg, for low-value cuts and the fat content of individual valuable cuts.