Effect of herbal based micronutrients premix supplemented diet on growth and survival of post larvae of Cyprinus carpio haematopterus (Amur carp)
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Date
2019-07
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
A feeding trial was conducted to evaluate the effect of herbal based micronutrients premix on growth and survival of post larvae of Cyprinus carpio haematopterus (Amur Carp) and to assess the impact of micronutrients premix on physiochemical properties of water. The experiment consisted of four treatments (T1 to T4) in triplicate. Fifty post larvae of Cyprinus carpio haematopterus of uniform size (1.75 ± 0.01cm length,
0.175g±0.005 weight) were stocked in 12 Aquariums (1.2 0.3 0.3). Three isonitrogenous diets containing 28 ± 0.5 crude protein were prepared using deoiled rice polish (50%) and deoiled groundnut cake (50%). The post larvae of treatment T1 were fed with diet D1 (no supplementation). The post larvae in treatment T2 and T3 were fed with diet D2 (1% premix supplemented) and D3 (2% premix supplemented) respectively. Post
larvae of treatment T4 were fed with diet D1 and D3 on alternative days (i.e. 2% premix supplemented on alternative days). The larvae were fed @ 16% body weight divided into 3 equal portions. The water quality parameters were observed daily. The survival percentage of post larvae in T1, T2, T3 and T4 were recorded as 80, 94, 98 and 91.32% respectively. Rearing of post larvae with diet D3 (2% premix) achieved significantly
enhanced SGR (1.45), FCR (2.64) and FCE (0.38). The above research revealed that herbal based micronutrients premix has very good growth promoting potential in raising post larvae of carp and its supplementation has no adverse impact on the water quality parameters as well as on fish feeding behavior. Based on the study it is recommended that herbal based micronutrients premix be incorporated @2% daily in fish feed for enhancing growth and survival of post larvae of carp fishes up to fry stage.
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