Nutraceutical Effect of Trace Elements as Additional Injectable Doses to Modulate Oxidant and Antioxidant Status, and Improves the Quality of Lamb Meat
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Our study aimed to evaluate whether zinc, copper, selenium, and manganese subcutaneous mineral application (trace elements) reduced mortality, improved performance, and modulated oxidant and antioxidant balance in lamb meat, thereby improving its quality. We divided the 110 newborn Lacaune lambs into two groups: non-treated (control), and treated (application of minerals) with three doses of 0.33 mL/kg of body weight mineral complex on days of life 1, 30, and 60. All animals were weighed on day of life 1, 30, 60, 90, and 150. At the end of the experiment, 12 animals were slaughtered for physical and chemical analysis of meat, oxidant, and antioxidant status, and for allometric analysis. Mineral-application animals had greater live-weight (P < 0.05) on days of life 60 and 90. There was an increase in fat thickness (P = 0.004); pH levels (P = 0.002) were lower in mineral-application animal meat than in that of the control group. Meat was paler (according to lightness (L color)) in the control group (P = 0.04). Weight loss from cooking was greater in control animals (P = 0.004). Shear strength values were lower in the meat of treated lambs (P = 0.008) suggesting that mineral application was associated with increased meat tenderness. In addition, catalase and superoxide dismutase activities were higher (P = 0.01) in mineral-treated animals, associated with a reduction in reactive oxygen species levels (P < 0.01), and lipid peroxidation products (P = 0.02). These data suggest that mineral application modulated oxidant and antioxidant status, reflecting better meat quality.
KeywordsPerformance Lipid oxidation Reactive oxygen species Antioxidant system Mineral
We thank CAPES, CNPq, and UDESC (PROMOP) for the scholarship and research.
Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no conflict of interest.
This study was approved by the Ethics Committee of Use of Animals (CEUA) of Universidade do Estado de Santa Catarina (UDESC), protocol number 7398301116, as well as with the rules issued by the National Council for Control of Animal Experimentation (CONCEA).
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