Effect of Feed Colour on the Growth Performance And Activity of Digestive Enzymes in Rohu (Labeo rohita) Fry

Authors

  • B. N. Paul Central Institute of Freshwater Aquaculture, Kausabyaganga, Bhubaneswar 751 002
  • P. V. Rangacharyulu Central Institute of Freshwater Aquaculture, Kausabyaganga, Bhubaneswar 751 002
  • S. Sarkar Central Institute of Freshwater Aquaculture, Kausabyaganga, Bhubaneswar 751 002
  • P. K. Mukhopadhyay Central Institute of Freshwater Aquaculture, Kausabyaganga, Bhubaneswar 751 002

DOI:

https://doi.org/10.61885/joa.v4.1996.171

Keywords:

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Abstract

An experiment was conducted on the effect of feed colour on growth, feed conversion and certain physiological changes in rohu (Labeo rolita) fry. The fishes (av. wt 2.17 ± 0.07 g) were reared in plastic containers and fed in triplicates with a concentrate mixture containing groundnut cake (35 parts), rice bran (38 parts), soybeanmeal (20 parts), fishmeal (5 parts) and vitamin-mineral mixture (2 parts ) on a rigid schedule for a period of five weeks. All the diets had identical composition and texture except for different colours, viz., orange, yellow, red, magenta and blue, with the natural colour as control. During the course of thc experiment, daily fecd intake and weekly changes in body weight were recorded. The threc major digestive enzymes, viz., protcase, lipase and amylase, were studied in the hepatopancreas of the fish. Results of this experiment indicated higher growth rate with the blue diet vis-a-vis other diets. The enzymatic changes were in close agreement with the observations on growth performance and response to associated nutritional parameters.

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Published

1996-09-27

How to Cite

Paul, B. N., Rangacharyulu, P. V., Sarkar, S., & Mukhopadhyay, P. K. (1996). Effect of Feed Colour on the Growth Performance And Activity of Digestive Enzymes in Rohu <I>(Labeo rohita)</I> Fry. JOURNAL OF AQUACULTURE, 4, 15–18. https://doi.org/10.61885/joa.v4.1996.171

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References

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