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PLoS One ; 15(11): e0242822, 2020.
Article in English | MEDLINE | ID: mdl-33227032

ABSTRACT

The objective of this study was to evaluate the effects of the association of cottonseed processing method with chitosan on carcass traits and meat quality of lambs finished in feedlot. Eighty lambs with an average body weight of 20.6 kg, with 04 months of age, were distributed in a completely randomized design, in a 2 x 2 factorial arrangement. The factors were represented by two cottonseed processing method (whole or ground) and two levels of chitosan (0 and 136 mg/kg BW). The association of cottonseed processing method with chitosan in the lamb diet did not affect (P>0.05) carcasses traits. The pH, color, cooking losses, shear force, and proximate composition of meat were also not affected (P>0.05) by the processing method of cottonseed or its association with chitosan in the lamb diets. There was an increase in palmitoleic (c9-C16:1; P = 0.01) and conjugated linoleic (P = 0.02) fatty acids when ground cottonseed was associated with chitosan. Ground cottonseed associated with chitosan increases the concentration of unsaturated fatty acids in the meat of feedlot lambs.


Subject(s)
Animal Feed , Chitosan/chemistry , Cottonseed Oil/chemistry , Food Handling , Animals , Body Composition/drug effects , Body Weight , Fatty Acids, Unsaturated/chemistry , Humans , Meat/standards , Red Meat , Sheep/growth & development , Sheep, Domestic
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