Beneficial effects of antioxidants in improving health conditions of sheep infected with foot-and-mouth disease
The effect of multinutrient antioxidant treatment on sheep naturally infected with FMD virus was investigated in terms of general health conditions, serum proteins profile, and antioxidant/oxidant parameters. Twenty diseased sheep were divided into 4 equal groups (n = 5) and underwent certain therapeutic protocols for 8 weeks as follows: GI, infected not treated group; GII, infected and treated with the ideal and usual line of treatment against FMD virus infection; GIII, infected animals supplemented orally zinc methionine at a dose of 5 g/head/day and vitamin E with selenium-enriched yeast at the same dose level; GIV, infected animals received both the ideal treatment and antioxidants. The animals under experiment were clinically evaluated. Blood samples were obtained for the comet assay and biochemical examination at zero time and at the 8th week after treatment. Results revealed that DNA damage reduced in both GIII and GIV groups which received antioxidants. In the GI group, the activity of SOD and GPx and the level of total antioxidant capacity (TAC) markedly decreased. However, in both GIII and GIV groups treated with multinutrient antioxidants, GPx and TAC values significantly increased after treatment in comparison with the values of the same groups before treatment. After treatment with multinutrient antioxidants, α1-, β-, and γ-globulins levels markedly increased in GII and GIII groups while α2-globulin level decreased. The improvement in healing of clinical signs and general health conditions was clear in the GIV group. Finally, FMD infection in sheep was found to be associated with oxidative stress. The use of antioxidants as therapeutic approaches recovers and improves general health conditions and performance of affected animals.
KeywordsFoot-and-mouth disease Sheep Antioxidants Serum proteins Treatment
This study was financially supported by National Research Centre as a part of a project entitled “Recent Approaches in the Utilization of Natural Antioxidants as Therapy and Feed Additive in Small Ruminants” (the 11th Research Plan, No. 11020303) under the supervision of Prof. Dr. Hala A. Abou-Zeina.
Compliance with ethical standards
This study was conducted according to the guidelines of the Institutional Animal Care and Use Committee at the National Research Centre, Giza, Egypt, Approval Protocol No. 18/101. In this study, all procedures performed involving animals were in accordance with the ethical standards of the institution or practice at which the study was conducted.
Conflict of interest
The authors declare that they have no conflicts of interest.
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