Effects of dietary protein levels on the activity of the digestive enzyme of albino and normal Apostichopus japonicus (Selenka)
We evaluated the effects of different proportions of dietary protein (5%, 10%, 15%, 20%, 25% and 30% protein) on the activity of digestive enzymes of normal and albino Apostichopus japonicus. The experimental diets were fed for 60 days, the optimal conditions for digestive enzyme activity in sea cuc...
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| Veröffentlicht in: | Aquaculture research 2018-03, Vol.49 (3), p.1302-1309 |
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| creator | Xia, Sudong Zhao, Wei Li, Man Zhang, Libin Sun, Lina Liu, Shilin Yang, Hongsheng |
| description | We evaluated the effects of different proportions of dietary protein (5%, 10%, 15%, 20%, 25% and 30% protein) on the activity of digestive enzymes of normal and albino Apostichopus japonicus. The experimental diets were fed for 60 days, the optimal conditions for digestive enzyme activity in sea cucumbers were studied. The optimal temperature for protease was 29.3°C and the optimal pH was 1.8. The optimal temperature for amylase was 34.3°C and the optimal pH was 6.7. The optimal temperature for cellulase was 56°C and the optimal pH was 5.9. The activity of intestinal protease increased at first and then decreased as the proportion of dietary protein increased, reaching the maximum when the proportion of protein was 19.7%. The activity of protease in the intestine of normal sea cucumber was significantly lower than that of albino sea cucumber, and the activity of amylase was significantly higher than that of albino sea cucumber. This study is expected to provide a basis for further explaining the ecological difference of albino and normal A. japonicus. |
| doi_str_mv | 10.1111/are.13585 |
| format | Article |
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The experimental diets were fed for 60 days, the optimal conditions for digestive enzyme activity in sea cucumbers were studied. The optimal temperature for protease was 29.3°C and the optimal pH was 1.8. The optimal temperature for amylase was 34.3°C and the optimal pH was 6.7. The optimal temperature for cellulase was 56°C and the optimal pH was 5.9. The activity of intestinal protease increased at first and then decreased as the proportion of dietary protein increased, reaching the maximum when the proportion of protein was 19.7%. The activity of protease in the intestine of normal sea cucumber was significantly lower than that of albino sea cucumber, and the activity of amylase was significantly higher than that of albino sea cucumber. 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The experimental diets were fed for 60 days, the optimal conditions for digestive enzyme activity in sea cucumbers were studied. The optimal temperature for protease was 29.3°C and the optimal pH was 1.8. The optimal temperature for amylase was 34.3°C and the optimal pH was 6.7. The optimal temperature for cellulase was 56°C and the optimal pH was 5.9. The activity of intestinal protease increased at first and then decreased as the proportion of dietary protein increased, reaching the maximum when the proportion of protein was 19.7%. The activity of protease in the intestine of normal sea cucumber was significantly lower than that of albino sea cucumber, and the activity of amylase was significantly higher than that of albino sea cucumber. This study is expected to provide a basis for further explaining the ecological difference of albino and normal A. japonicus.</description><subject>Albinism</subject><subject>Amylases</subject><subject>Apostichopus japonicus</subject><subject>body colour</subject><subject>Cellulase</subject><subject>dietary protein</subject><subject>digestive enzyme</subject><subject>Digestive enzymes</subject><subject>Enzymatic activity</subject><subject>Enzyme activity</subject><subject>Enzymes</subject><subject>Intestine</subject><subject>Intestines</subject><subject>Marine invertebrates</subject><subject>pH effects</subject><subject>Protease</subject><subject>Proteins</subject><subject>Temperature</subject><subject>Temperature effects</subject><subject>Vegetables</subject><issn>1355-557X</issn><issn>1365-2109</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp1kMlOwzAQhiMEEqVw4A0scaGHtJ7YznKsqrJIlZBYJG6RG0-oS2qHOC0KF14dh3BlLp7lmxnPHwSXQKfgbSYbnAITqTgKRsBiEUZAs-PeFyIUInk9Dc6c21IKnDIYBd_LssSidcSWRGlsZdORurEtakMqPGDlK4a0GySyaPVBt11P9rHSb-h8Cgmar26HfV5Wa20skUYRY5udrMi8th4qNrbeO7KVtTW68N71E1Zo3uXkPDgpZeXw4u8dBy83y-fFXbh6uL1fzFdhwVgkwiSBKIZCcRorqWiCWZxywRXjNOFrXpRiDSmHjEkaUZBKKIYyAwaSJir2p46Dq2GuP-5j7z-eb-2-MX5lDlkWpSJKKXhqMlBFY51rsMzrRu-8JjnQvNc39_rmv_p6djawn7rC7n8wnz8uh44f5nR8tg</recordid><startdate>201803</startdate><enddate>201803</enddate><creator>Xia, Sudong</creator><creator>Zhao, Wei</creator><creator>Li, Man</creator><creator>Zhang, Libin</creator><creator>Sun, Lina</creator><creator>Liu, Shilin</creator><creator>Yang, Hongsheng</creator><general>Hindawi Limited</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TN</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>H98</scope><scope>H99</scope><scope>L.F</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><orcidid>https://orcid.org/0000-0001-6854-845X</orcidid><orcidid>https://orcid.org/0000-0002-4611-1852</orcidid></search><sort><creationdate>201803</creationdate><title>Effects of dietary protein levels on the activity of the digestive enzyme of albino and normal Apostichopus japonicus (Selenka)</title><author>Xia, Sudong ; 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The experimental diets were fed for 60 days, the optimal conditions for digestive enzyme activity in sea cucumbers were studied. The optimal temperature for protease was 29.3°C and the optimal pH was 1.8. The optimal temperature for amylase was 34.3°C and the optimal pH was 6.7. The optimal temperature for cellulase was 56°C and the optimal pH was 5.9. The activity of intestinal protease increased at first and then decreased as the proportion of dietary protein increased, reaching the maximum when the proportion of protein was 19.7%. The activity of protease in the intestine of normal sea cucumber was significantly lower than that of albino sea cucumber, and the activity of amylase was significantly higher than that of albino sea cucumber. 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| subjects | Albinism Amylases Apostichopus japonicus body colour Cellulase dietary protein digestive enzyme Digestive enzymes Enzymatic activity Enzyme activity Enzymes Intestine Intestines Marine invertebrates pH effects Protease Proteins Temperature Temperature effects Vegetables |
| title | Effects of dietary protein levels on the activity of the digestive enzyme of albino and normal Apostichopus japonicus (Selenka) |
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