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Relationships between dietary sodium chloride, food intake and food conversion in the rainbow trout
Author(s) -
MacLeod M. G.
Publication year - 1978
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1978.tb03414.x
Subject(s) - rainbow trout , salmo , biology , sodium , food intake , zoology , feed conversion ratio , dry weight , trout , body weight , food science , fish <actinopterygii> , fishery , endocrinology , chemistry , botany , organic chemistry
The addition of up to 8.5 % sodium chloride to the diet of rainbow trout Salmo gairdneri had no significant effect on either food intake or food conversion efficiency. Over a range of rations from 4 % to 38 % of dry weight per week, there was a rectilinear relationship between ration and growth rate. The weight maintenance requirement and rate of weight loss during fasting were estimated from this relationship. Food conversion efficiency ( K ) increased from 0.00 at 4% dry weight per week food intake ( x ) to 0.19 at 38%, according to the equation K =0.21‐0.77/x.