ASSOCIATION OF ANTIOXIDANT STATUS WITH ENERGY LEVEL IN NON-DESCRIPT GOAT FROM ARID TRACTS DURING EXTREME ENVIRONMENTAL TEMPERATURE PERIODS
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Date
2017
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Rajasthan University of Veterinary and Animal Sciences, Bikaner
Abstract
The present investigation was planned to determine association of antioxidant status with energy level in non-descript goats from arid tracts during extreme environmental temperature periods (ETPs). Blood samples were collected to harvest serum during moderate, hot and cold ETPs. In each ETP, the male and female goats were categorized as 3-8 months; 8-13 months and 13-18 months of age groups. Association of antioxidant status with energy level were appraised by determining non-enzymatic and enzymatic antioxidants in the serum. Nonenzymatic antioxidants included vitamin A, vitamin C, vitamin E and glutathione and enzymatic antioxidants included superoxide dismutase, glutathione reductase, catalase and peroxidase. Indices of energy level included glucose, glucose-6-phosphatase and hexokinase. The mean overall values of serum vitamin A, vitamin C, vitamin E and glutathione of non-descript goats during moderate ETP (control) were 2.45±0.08; 23.90±0.10; 4.80±0.09 and 7.80±0.09 µmolL-1, respectively. The mean values were found to be significantly (p≤0.05) lower during hot and cold ETPs. Magnitude of decrement was observed to be greater during hot ETP than that in cold ETP. The mean overall values of serum superoxide dismutase, glutathione reductase, catalase and peroxidase of nondescript goats during moderate ETP (control) were 160.00±2.00 kU L-1; 9.00±0.18 kUL-1; 60.00±1.09 kUL-1and 45.00±0.10 mUL-1,respectively irrespective of sex and age. Significantly (p≤0.05) increased mean values of serum superoxide dismutase, glutathione reductase, catalase and peroxidase were observed during hot and cold ETPs as compared to moderate overall mean value. It was found that enhancement in the values during hot ETP was greater than that of cold ETP for each variable. The mean overall values of serum glucose, glucose-6-phosphatase and hexokinase of non-descript goats during moderate ETP (control) were 3.00±0.04 mmolL-1;10.00±0.14 UL-1 and 40.00±0.66 UL-1, respectively. The mean values were significantly (p≤0.05) higher during hot and cold ETPs as compared to moderate ETP overall mean value. Magnitude of increase was higher during cold ETP than in hot ETP. Significant (p≤0.05) effects of sex and age were encountered during moderate, extreme hot and cold ETPs for each variable investigated. Significantly (p≤0.05) higher mean values of enzymatic and non-enzymatic antioxidant indicators were found in male goats than in female goats. Significantly (p≤0.05) higher mean values of energy level indicators were found in female goats than in male goats. An increase in the mean
values was observed depicting a significant (p≤0.05) age effect. The values were observed to be highest in the goats of 13-18 months of age and lowest in the goats of 38 months of age for each indicator.
It can be concluded that extreme hot and cold ETPs affected the serum antioxidant status along with energy level indices.In a holistic manner, it can be deduced that energy level was positive in non-descript goats during extreme hot and cold ETPs. All groups of the goats were found to be affected due to radical changes in environmental temperatures during hot and cold ETPs. Among nonenzymatic antioxidants, maximum per cent variation was observed in vitamin E followed by glutathione, vitamin C and vitamin A. Among enzymatic antioxidants, maximum per cent variation was observed in SOD followed by GR, PO and CAT. Among indices of energy level, maximum per cent variation was observed in G6-Pase followed by HK and glucose. Accordingly, it can be proposed that appropriate antioxidants must be dispensed to the ration of non-descript goats in order to reinforce the antioxidant status along with proper energy level to protect the body from insensitive effects of extreme ETPs. Results have attempted to focus on the comparative significance of antioxidants. This is probably the first endeavour where indicators of serum antioxidant status and energy level have been determined at one pedestal in non-descript goats. Female goats and animals of 3-8 months of age were affected most due to extreme environmental temperatures. This was based upon the findings obtained on the basis of antioxidant status. In terms of both enzymatic and non-enzymatic indicators, antioxidant status was comparatively lowest in female non-descript goats and 3-8 months old non-descript goats during extreme hot and cold ETPs. Archetype of variations in the values of various antioxidants reflected the development of oxidative stress in all the goats during hot and cold ETPs, however, magnitude was greater in female animals and 3-8 months old animals. Brunt of hot ETP was greater than cold ETP on all the goats. The data congregated can be utilized in veterinary clinical physiology for imminent research in the theme of antioxidant and energy status and in categorizing protection gambits during harsh environmental conditions like extreme hot and cold periods. The selected parameters in the present study tried to peep into the underlying mechanisms involved with the fighting of endogenous antioxidants to override the possibly generated free radicals in large amounts. Such information is reasonably in requirement for non-descript goat raisers in arid tracts and for researchers engaged in scientific effecting of management tactics in non-descript goats from arid tracts. The outcome of the endeavour will give assistance in handling the contrivances for wellbeing and coziness of the non-descript goats in arid tracts reared in natural conditions. A strong association of antioxidant status with energy level in non-descript goat from arid tracts during extreme environmental temperature periods was observed by the upshots of the endeavour.
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