Year: 1979
Type: article
Abstract: Ten groups of juvenile prawn, Penaeus japonicus, were each given a different test diet containing the following lipids: 1) 8% soybean oil; 2) 7% soybean oil + 1% linoleic acid; 3) 7% soybean oil + 1% linolenic acid; 4) 8% pollack (Theragra chalcogramma) residua1 liver oil (PRO); 5) 7% PRO+ 1% linoleic acid; 6) 7% PRO+ 1% linolenic acid; 7) 7% PRO+ 1% glycerol monolinoleate; 8) 8% short-necked clam (Tapes philippinarium) lipids (Tapes lipids); 9) 7% Tapes lipids + 1% linoleic acid; 10) 7% Tapes lipids + 1% linolenic acid.The highest weight gain was attained with the diet containing 7% Tapes lipids + 1% linolenic acid, and the lowest, with the diet containing 8% soybean oil atone.The addition of 1% linolenic acid (18 : 3ro3) to the diets containing 7% levels of soybean oil, PRO, or Tapes lipids markedly improved the weight gain of prawns.The addition of 1% linoleic acid to the diet containing 7% PRO also resulted in weight gain.The fatty acid composition of prawn lipids was affected by that of the dietary lipids: the proportions of ro3-series of polyunsaturated fatty acids were elevated in those prawns fed diets containing an abundance of linolenic acid.These data indicate that both linoleic and linolenic acids are effective for satisfactory survival and growth of the prawn P. japonicus, and that the effect of linoleic acid is inferior to that of linolenic acid.•
Authors: Ayako Kanazawa, Shin‐ichi Teshima, Shigeru Tokiwa, Ceccaldi Hj
Language: English
Subfield: Aquatic Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: green
OpenAlex ID: W318280789