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Qualitative characteristics of meat from young bulls fed different levels of crude glycerin

2013; Elsevier BV; Volume: 96; Issue: 2 Linguagem: Inglês

10.1016/j.meatsci.2013.10.020

1873-4138

José Rodolfo Reis de Carvalho, M. L. Chizzotti, Eduardo Mendes Ramos, Otávio Rodrigues Machado Neto, Dante Pazzanese Duarte Lanna, Leandro Sâmia Lopes, Priscilla Dutra Teixeira, Márcio Machado Ladeira,

Aquaculture Nutrition and Growth

The objective was to evaluate the fatty acid profile and qualitative characteristics of meat from young bulls fed crude glycerin. Forty-four animals with an initial live weight of 368 ± 4 kg were used in a completely randomized design, with four treatments: no glycerin or addition of 6, 12 or 18% glycerin. The animals were slaughtered with 519.5 ± 14.9 kg of live weight. The meat characteristics assessed were chemical composition, shear force, fatty acid concentration, color and lipid oxidation. The addition of glycerin increased the content of ether extract (P<0.05) in the muscle. A linear increase was observed (P<0.05) in the oleic acid contents (C18:1 cis 9). The saturated fatty acid (SFA) contents linearly decreased in the muscle as a function of glycerin addition. The lightness (L*) and yellowness (b*) indices increased with the use of crude glycerin (P<0.05). The crude glycerin increased the intramuscular fat and oleic acid content in the longissimus dorsi muscle.