Protein sparing capability of carbohydrate in fringed-lipped carp Labeo fimbriatus (Bloch, 1795)


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Authors

  • Y. M. Kathane College of Fisheries,Orissa University of Agriculture and Technology, Rangeilunda, Berhampur - 799 210, Odisha, India
  • B. Sahu ICAR-Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, Odisha, India
  • K. N. Mohanta ICAR-Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, Odisha, India
  • S. Nanda College of Fisheries,Orissa University of Agriculture and Technology, Rangeilunda, Berhampur - 799 210, Odisha India
  • S. K. Patra College of Fisheries,Orissa University of Agriculture and Technology, Rangeilunda, Berhampur - 799 210, Odisha, India
  • K. Samantaray College of Fisheries,Orissa University of Agriculture and Technology, Rangeilunda, Berhampur - 799 210, Odisha India

https://doi.org/10.21077/ijf.2017.64.special-issue.76271-30

Abstract

The study was undertaken to examine the capability of carbohydrate to spare protein in the diet of fringed lipped carp, Labeo fimbriatus (2.93 g±0.15). Three semi-purified experimental diets of iso-caloric nature were formulated having three graded levels of protein (27, 23 and 19% CP) and three levels of carbohydrate (26, 31.5 and 37% CHO). Accordingly, the treatments were designated as T1 (27% CP and 26% CHO), T2 (23% CP and 31.5% CHO) and T3 (19% CP and 37% CHO), where the experimental diet T1 served as the reference diet. The fish were reared in 200 l fibre reinforced plastic (FRP) tanks under continuous aeration with one third water exchanged daily. After 90-days of feeding trial, it was noticed that the percentage weight gain and specific growth rate (SGR) of 27% protein fed group (209.5±0.74% and 1.26±0.15%) and 23% protein fed group (204.8±0.52% and 1.24±0.13%) were not significantly different (p>0.05). Similarly, the results of feed performance like feed conversion ratio (FCR) among 27% protein fed group (2.24±0.11) and 23% protein fed group (2.29±0.14) did not vary significantly (p>0.05). On the other hand, the protein efficiency ratio (PER) and protein productive value (PPV) of 23% protein fed group (1.87±0.11 and 28.34±0.36) did not vary significantly (p>0.05) with the 19% protein fed group (1.93±0.12 and 27.65±0.32). The carcass protein (CP) and lipid (as ether extract,EE) content of 27% protein fed group and 23% protein fed group were not significantly different (p>0.05). Results of this study indicate that the CP level in the diet of fringed-lipped carp L. fimbriatus can be reduced from 27 to 23% by proportionately increasing carbohydrate level from 26 to 31.5% without compromising growth and also without any adverse physiological effect.

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Submitted

2017-12-04

Published

2018-03-14

How to Cite

Kathane, Y. M., Sahu, B., Mohanta, K. N., Nanda, S., Patra, S. K., & Samantaray, K. (2018). Protein sparing capability of carbohydrate in fringed-lipped carp Labeo fimbriatus (Bloch, 1795). Indian Journal of Fisheries, 64. https://doi.org/10.21077/ijf.2017.64.special-issue.76271-30