Effect of production system before the finishing period on carcass, meat and fat qualities of beef
2013
Guerrero, A. | Sañudo, C. | Albertí, P. | Ripoll, G. | Campo, M. M. | Olleta, J. L. | Panea, B. | Khliji, S. | Santolaria, P. | Indústries Alimentàries | Qualitat i Tecnologia Alimentària
Twenty Gascon young bulls that had been reared either in intensive conditions (INT) (n = 10) with early weaning at 3 to 4 months, or in a traditional extensive (EXT) system (n = 10) with weaning at 7 months, were subjected to the same conditions during the 145-day finishing period. Production system before the finishing period did not affect conformation, dressing percentage or morphology of the carcass; nevertheless, tissue composition differed somewhat between the two groups. Display had a stronger effect on meat colour than did production system. Percentage of myoglobin was highest in INT (P ⩽ 0.001), although meat texture and sensory quality did not differ between rearing conditions. EXT animals had darker, more yellow fat, a higher percentage of n-3 fatty acids (P ⩽ 0.001), a lower percentage of saturated fatty acids (P ⩽ 0.05) and a lower n-6/n-3 index (P ⩽ 0.001) than did the INT-reared animals. Production system before the fattening period might modify some of the characteristics of commercial beef, especially those associated with fat.
Show more [+] Less [-]This research was financed by European Project Programmes POCTEFA-OTRAC I 2009/010. The authors thank the OTRAC consortium members and the local government (DGA) for the PhD scholarship.
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