International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 8, Issue:7, July, 2019

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(7): 1650-1657

Evaluation of Optimum Protein Requirement for Indian Spiny Loach (Lepidocephalus thermalis)
M. Renuhadevi1*, B. Ahilan1, C.B.T. Rajagopalsamy2, P. Padmavathy3, I. Jegan Michael Andro Jeevagan1 and E. Prabu1

1Department of Aquaculture
2Department of Fish Nutrition and Feed Technology
3Department of Aquatic Environment Management, Fisheries College and Research Institute, Tamil Nadu Fisheries University, Thoothukudi – 628008, Tamil Nadu, India

*Corresponding author

A 90 days growth trial was conducted to evaluate optimum protein requirement for Indian spiny loach (Lepidocephalus thermalis). Five different protein feeds viz., 20%, 25%, 30%, 35%, and 40% were prepared as experimental diets. This feeding trial was conducted in 40 L plastic troughs in triplicates using loaches with an average weight of 1.28 g - 1.55 g. During the experimental period, water quality parameters were measured and recorded daily. The mean value of water temperature, pH, dissolved oxygen, ammonia-N, nitrite-N, nitrate-N, hardness, alkalinity in the experimental system were 23.5-26.3°C, 8.5-8.7, 5-6 ppm, 0.01 ppm, 0.05 ppm, 10 ppm, 650 ppm, 165 ppm respectively. Among the experimental diets 35% protein diet yielded the best result in terms of average body weight gain, PER, SGR and ADG. The mean body weight gain recorded in the 35% protein diet was 0.67 ± 0.008 g. In this study, 35% protein feed performed well in terms of growth rate and PER hence it is recommended that the optimum protein requirement for the better growth of Indian spiny loach (Lepidocephalus thermalis) is 35%.

Keywords: Indian spiny loach, Protein feed, PER- Protein Efficiency Ratio, SGR-Specific Growth Rate

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How to cite this article:

Renuhadevi, M., B. Ahilan, C.B.T. Rajagopalsamy, P. Padmavathy, I. Jegan Michael Andro Jeevagan and Prabu, E. 2019. Evaluation of Optimum Protein Requirement for Indian Spiny Loach (Lepidocephalus thermalis).Int.J.Curr.Microbiol.App.Sci. 8(7): 1650-1657. doi:
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