Some observations of the effects of body weight, temperature, meal size and quality on gastric emptying time in the turbot, <i>Scophthalmus maximus</i> (L.) using radiography

DOI Web Site Web Site 被引用文献3件

抄録

<jats:p>The gastric emptying time (G.E.T.) in turbot was investigated using X‐radiography and was found to decrease with temperature. Small fish processed a given ration, expressed as percent body weight, faster than large fish (G.E.T. was found to be proportional to (fish weight)<jats:sup>0.364</jats:sup>). Large meals in a given fish were processed at a faster rate than small meals. Gastric emptying rate (G.E.R.) was found to be proportional to (meal size g)<jats:sup>0.613</jats:sup> at 8° C and (meal size g)<jats:sup>0.788</jats:sup> at 19° C. These exponents are in agreement with a recently proposed model relating G.E.T. and G.E.R. to meal size (Fänge & Grove, 1978). Large fish emptied a meal of given absolute size from the stomach at a faster rate (g h<jats:sup>−1</jats:sup>) than small fish. Experimental meals diluted with kaolin were evacuated in significantly less time than a control diet, suggesting that turbot may adjust feeding rates when food quality varies.</jats:p>

収録刊行物

被引用文献 (3)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ