Effect of α-tocopherol supplementation on growth performance, antioxidant activity and nutrient digestibility of Labeo rohita (Hamilton 1822) fingerlings fed corn gluten meal-based diet
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Authors
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Muhammad Arshad
Fish Nutrition Lab, Department of Zoology, Government College University, Faisalabad, Pakistan
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Dr Syed Makhdoom Hussain
Fish Nutrition Lab, Department of Zoology, Government College University, Faisalabad, Pakistan
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Azhar Rafique
Fish Nutrition Lab, Department of Zoology, Government College University, Faisalabad, Pakistan
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Farooq Ahmad
Department of Zoology, The Islamia University of Bahawalpur, Pakistan
Assistant Professor
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Muhammad Mudassar Shahzad
Department of Zoology, Division of Science and Technology, University of Education, Lahore, Pakistan
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Ilknur Uçak
Department of Animal Production and Technologies, Faculty of Agricultural Sciences and Technologies, Nigde Omer Halisdemir University, 51240, Nigde/Turkey
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Arshad Javid
Department of Wildlife & Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan
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Hamda Azmat
Department of Fisheries & Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
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Abdullah Ijaz Hussain
Department of Chemistry, Government College University, Faisalabad, Pakistan
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Aqsa Sharif
Fish Nutrition Lab, Department of Zoology, Government College University, Faisalabad, Pakistan
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Muhammad Asrar
Fish Nutrition Lab, Department of Zoology, Government College University, Faisalabad, Pakistan
Abstract
A 70 days feeding trial was conducted to determine the effects of α-tocopherol (vitamin E) on the growth performance,
antioxidant activity and nutrient digestibility of Labeo rohita (Hamilton 1822) fingerlings fed corn gluten meal based diet.
Fingerlings (initial average weight: 6.35 g) were fed seven graded levels of α-tocopherol viz., 0, 100, 200, 300, 400, 500 and
600 mg kg-1. Triplicate tanks were used and each tank housed 15 fingerlings. Fish were fed at the rate of 5% of live wet weight.
Collected data was subjected to one-way analysis of variance (ANOVA). Results showed that fingerlings fed with 200 mg kg-1
of α-tocopherol showed significantly (p<0.05) higher weight gain (32.73 g), weight gain% (261%) and suitable feed
conversion ratio (2.49). Among other experimental and control diets, optimum apparent digestibility coefficient (ADC%)
of crude protein (CP) (73%), ether extract (EE) (74%) and gross energy (GE) (63%) was noted in the fish fed 200 mg kg-1
diet. Minimum oxidation (%) (7.66%) was observed at 600 mg kg-1 predicting that the antioxidant activity increased in a
dose-dependent manner.
Keywords: α-tocopherol, Antioxidant activity, Aquaculture, Corn gluten meal, Growth
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