Dietary Effects of Lactobacillus plantarum Combined with Galactooligosaccharide on Immunological and Biochemical Parameters, Gut Microbiota, Digestive Enzyme Activity, Body Composition, and Stress Resistance in Narrow-Clawed Crayfish, Pontastacus leptodactylus (Eschscholtz, 1823)

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چکیده

The effects of galactooligosaccharide (GOS) and varying levels Lactobacillus plantarum (LP) on some physiological parameters as well air exposure stress resistance in clawed crayfish (Pontastacus leptodactylus) were investigated. During a 97-day trial, 216 fed with four experimental diets (in triplicates) including the control diet (without GOS LP), GLP7 (GOS 2%+LP 107 CFU.g-1 diet), GLP8 108 GLP9 109 diet). At end 26% higher amounts total hemocyte count (THC) semigranular cells (SGC) 27% hyaline (HC) observed GLP7. A significant improvement lysozyme value was GLP8. Moreover, superoxide dismutase significantly GLP9, whereas catalase (CAT) activity did not change groups. Unlikely, plasma glucose decreased all GLP treatments. In terms intestinal microbiota, autochthonous lactic acid bacteria (LAB) remarkably increased GLP-supplemented groups, while heterotrophic counts (TVC) However, 14 days after switching to basal diet, no reduction detected TVC, but LAB Dietary administration could beneficially modulate digestive enzyme activity, protease, lipase, amylase. Furthermore, lipid gross energy GLP9. improve growth performance parameters. After 24 h subjecting stress, although mortality detected, healthier through enhanced THC, SGC, HC CAT These results proved positive impacts dietary supplementation combined LP, optimum diets, immunochemical parameters, P. leptodactylus.

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ژورنال

عنوان ژورنال: Aquaculture Nutrition

سال: 2023

ISSN: ['1353-5773', '1365-2095']

DOI: https://doi.org/10.1155/2023/3345916