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Evaluation of specific growth rate (Sgr) in the rainbow Trout

By: Nadar Ali Shah, Hakim Khan, Hameed Ur Rehman, Sardar Azhar Mehmood, Inamullah, Abid Ur Rehman, Wahid Shah, Alamgir Shah

Key Words: Diet, Feed ingredients, Feed conversion ratio (FCR), Specific growth rate (SGR), Rainbow trout

Int. J. Biosci. 12(6), 367-374, June 2018.


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An experiment was conducted in “Trout Culture Training Centre” (TCTC) in Madyan district Swat to study the growth performance of Rainbow trout (O. mykiss) during 2014-15. The aim of this study was to evaluate the physical changes (weight and length), Feed Conversion Ratio (FCR) and Specific Growth Rate (SGR) on the basis of providing two different artificial feeding formulation Type-1 and Type-2. After six months of feeding procedure the body weight of the fingerlings was recorded and the length was measured. Body length and weight increased in Group-1 as compared to Group-2. In group-2 the FCR was significantly higher than in Group-1 (p=0.026). Similarly the specific growth rate was found lower in Group-2 than Group-1 (p=0.061). Whereas Type-1 artificial feeding formulation showed better growth rate in Rainbow trout fingerlings as compared to Type -2 artificial feeding formulations. It was observed that feed with higher protein level was better for the fish growth and the growth of fish was different significantly among the treatment. Thus animal protein containing artificial feed, on the basis of growth performance can be induced in the feed formulation of fry of Rainbow trout (O. mykiss).

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Evaluation of specific growth rate (Sgr) in the rainbow Trout

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Nadar Ali Shah, Hakim Khan, Hameed Ur Rehman, Sardar Azhar Mehmood, Inamullah, Abid Ur Rehman, Wahid Shah, Alamgir Shah.
Evaluation of specific growth rate (Sgr) in the rainbow Trout.
Int. J. Biosci. 12(6), 367-374, June 2018.
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