ニジマスの0年魚の血漿成分量,市販飼料に添加したn-ブチルアルコールの影響

概要

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Hematocrit and plasma constitutents such as protein, cholesterol, phosphorus, calcium, magnesium, zinc and potassium were compared between two groups of NAGANO strain rainbow trout yearlings in August, October and December. From May to December the control group was fed commercial diet mixed with fish oil (100:8) and the BtOH group was fed with the diet containing fish oil and n-butyl alcohol (100:8:8). Growth of the BtOH group was a little better than the control group after the first two months but became inferior to the control group later on. The final average fish weights were 322g in the control and 297g in the BtOH groups. BtOH group showed lower value of hematocrit and cholesterol than the control group through the period. The level of protein was 4.2g/100ml in BtOH group and 3.9g/100ml in the control group in August. However, the level of BtOH group became lower than that of the control group in December. Males of both groups matured in December and showed raised hematocrit, protein, and phosphorus but no other constituents. Relationships of protein to cholesterol and to phosphorus were discussed in the groups.
公益社団法人日本水産学会の論文