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| Nutritional Composition of Different Carcass Parts of Holstein Veal Calves and Adult Cattle |
| XU Haiquan, QU Junling, LI Jinghu, SUN Junmao* |
| Institute of Food and Nutrition Development, Ministry of Agriculture, Beijing 100081, China |
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Abstract In order to evaluate the nutritional quality of different parts of cattle carcasses of different ages, different carcass parts of Holstein veal calves and adult cattle slaughtered within 24 hours after birth and at 24 months of age, respectively, were selected for the determination of energy, protein, fat, carbohydrate, sodium, iron, zinc, ash, water and amino acids. The results showed that the energy, fat, iron and zinc contents in veal ((382.0 ± 16.6) kJ/100 g, (1.3 ± 0.4) g/100 g, (0.8 ± 0.1) mg/100 g, (25.0 ± 4.6) mg/100 g, respectively) were significantly lower than those in adult cattle beef ( (880.0 ± 463.0) kJ/100 g, (14.5 ± 14.1) g/100 g, (1.7 ± 0.7) mg/100 g, (47.0 ± 14.8) mg/100 g) (P < 0.05), but the protein and carbohydrate contents were very close to those in adult cattle beef. The essential amino acids content in veal (394.3 mg/g pro) was higher than that in adult cattle beef (365.2 mg/g pro). The nutritional composition was similar in different veal parts, while the contents of energy, fat and carbohydrate in different parts of adult cattle beef were different with coefficients of variation of 52.6%, 97.2% and 100.0%, respectively. In general, the nutrition quality of beef was different in cattle of different ages or different parts of adult cattle, and so different populations should choose the right beef according to their nutritional needs.
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