Influência da inclusão de glicerina em substituição ao farelo de mesocarpo de babaçu e milheto na qualidade da carne bovina
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2019-03-01
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Universidade Federal de Goiás
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The aim of this study was to evaluate the quality of the meat by means of the composition
analysis, myofibrillar fragmentation index, collagen, color, vitamin E, cholesterol, lipid
oxidation, minerals and fatty acid profile of samples of Longissimus dorsi obtained from non-
castrated crossbred cattle with an average age of 30 months, feeding with increasing levels of crude glycerin 0, 60, 120 and 240 g / kg, replacing the grain association of millet and babassu
mesocarp bran in the dry matter of concentrated diet. A completely randomized
experimental design was used with four treatments and six replicates. The data obtained
were submitted to linear regression analysis through the R program. Composition analyzes,
myofibrillar fragmentation index, collagen did not show significant difference (P <0.05) with
the addition of crude glycerin to the diet. The a*, chroma index, lipid oxidation and vitamin E
presented positive linear regression with the inclusion of crude glycerin (P <0.05). The values of K (P <0.05) decreased with the addition of crude glycerin, but being normal variations for beef. Saturated and unsaturated fatty acids levels did not show a significant difference between the evaluated treatments. Monounsaturated fatty acids increased while the polyinsatured fatty acids level decrease. Crude glycerin can be used in cattle, because it
favored vitamin E level, improved the n6: n3 ratio and did not increase the amount of
cholesterolemic fatty acids.
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SOUZA, M. I. A. Influência da inclusão de glicerina em substituição ao farelo de mesocarpo de babaçu e milheto na qualidade da carne bovina. 2019. 94 f. Tese (Doutorado em Ciência Animal) - Universidade Federal de Goiás, Goiânia, 2019.