著者

手島 新一 金沢 昭夫

出版者

公益社団法人 日本水産学会

雑誌

日本水産学会誌 (ISSN:00215392)

巻号頁・発行日

vol.42, no.10, pp.1129-1135, 1976-10-25 (Released:2008-02-29)

参考文献数

37

被引用文献数

9 11

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This study deals with the variations in the content and fatty acid composition of lipid classes during the molting cycle of a fresh-water shrimp, Palaemon paucidens. The lipid content increased at mid premolt (stage D2) and then decreased at late premolt (stage D3-4). The accumulation of lipids during the early premolt period seemed to be attributed mainly to that of polar lipids. Throughout the molting cycle, the shrimp con-tained more polar than neutral lipids, the latter consisting mainly of triglycerides, free sterols, and free fatty acids. In the case of the polar lipids, the percentage composition of saturated acids such as 16:0 and 18:0 increased at stage D2. In contrast to the polar lipids, the tri-glycerides showed no marked variation in the fatty acid composition during the molting cycle. The free fatty acids showed an increase in saturated acids such as 16:0 and monoenoic acids such as 16:1 and 18:1 at intermolt (stage C).

著者

金沢 昭夫 手島 新一 坂本 義信 B.GUARY Jean-Claude

出版者

日本水産學會

雑誌

日本水産学会誌 (ISSN:00215392)

巻号頁・発行日

vol.42, no.9, pp.1003-1007, 1976

被引用文献数

1 17

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This study deals with the variation in the content of lipids and cholesterol in the tissues of a prawn, <i>Penaeus japonicus</i>, with the molting stages, postmolt, intermolt, and premolt.<br> The lipid content was highest in the eyestalk and hepatopancreas among the tissuesexamined. The hepatopancreatic lipid content varied during the molting cycle, reaching a maximum value at the premolt stage. In contrast, that of the eyestalk remained almost constant throughout the molting cycle.<br> The cholesterol content was highest in the eyestalk among the tissues examined. In addition, the hypodermis had a considerably high cholesterol content. During the molting cycle, the cholesterol content of the eyestalk varied, reaching a maximum at the intermolt stage.