Effect of Dietary Carbohydrate Levels on the Growth and Liver Function of Carp Cyprinus carpio

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dc.contributor.authorSun J.
dc.contributor.authorCui P.
dc.contributor.authorCheng Z.
dc.contributor.authorBai D.
dc.contributor.authorQiao X.
dc.date.accessioned2018-11-20T20:09:41Z
dc.date.available2018-11-20T20:09:41Z
dc.date.issued2018
dc.description.abstractThis experiment was conducted to study the effects of carbohydrate levels on the growth and liver function of Tianjin carp, Cyprinus carpio (mean body weight, 60.82 ± 0.38 g). Three diets, including 30% protein and 5.5% fat (dry matter) and 0, 15, or 30% corn starch (carbohydrate source) were provided to control, low carbohydrate, or high carbohydrate treatment groups, respectively. Weight gain, specific growth rate, hepatopancreas somatic index, and liver glycogen content were significantly higher in fish fed the 30% corn starch diet than fish fed 0% corn starch (P<0.05) but did not differ between the other two treatment groups. Protein efficiency ratio increased significantly as corn starch level increased (P<0.05), but feed conversion ratio showed the opposite trend (P<0.05). Glutamic pyruvic transaminase activity in the serum significantly increased with increasing corn starch levels (P<0.05), but total protein (decreasing trend) and glutamic-oxaloacetic transaminase (increasing trend) did not differ among dietary treatments. Histomorphological analysis of hepatopancreas sections showed that fish fed 15% or 30% corn starch diets presented mild hydropic degeneration and fatty degeneration or severe fatty degeneration, respectively. In summary, although carbohydrates promote carp growth, they enhance glycogen and fat accumulation in the hepatopancreas, reducing its function.
dc.format.extent9 pages
dc.identifier.issn0792-156X
dc.identifier.urihttp://hdl.handle.net/10524/59305
dc.subjectCorn starch
dc.subjecthepatopancreas histomorphology
dc.subjectenzyme activity
dc.subjectglycogen content
dc.subjectserum biochemistry
dc.subject.lcshFish culture--Israel.
dc.subject.lcshFish culture
dc.titleEffect of Dietary Carbohydrate Levels on the Growth and Liver Function of Carp Cyprinus carpio
dc.typeArticle
dc.type.dcmiText

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