Effects of dietary sodium acetate on food intake, weight gain, intestinal digestive enzyme activities, energy metabolism and gut microbiota in cultured fish: Zebrafish as a model

Aquaculture ◽  
2020 ◽  
Vol 523 ◽  
pp. 735188 ◽  
Author(s):  
Hongling Zhang ◽  
Qianwen Ding ◽  
Anran Wang ◽  
Yu Liu ◽  
Tsegay Teame ◽  
...  
Keyword(s):  
Weight Gain ◽  
Energy Metabolism ◽  
Food Intake ◽  
Gut Microbiota ◽  
Enzyme Activities ◽  
Sodium Acetate ◽  
Digestive Enzyme ◽  
Dietary Sodium ◽  
Cultured Fish ◽  
Digestive Enzyme Activities

scholarly journals Impact of Dietary Cornstarch Levels on Growth Performance, Body Composition and Digestive Enzyme Activities of Juvenile Soft-Shelled Turtle (Pelodiscus sinensis)

2018 ◽  
Vol 18 (4) ◽  
pp. 1029-1043 ◽  
Author(s):  
Hongyan Kou ◽  
Yutao Miao ◽  
Xunbin Pan ◽  
Li-Xin Yan ◽  
An-Li Wang ◽  
...  
Keyword(s):  
Body Composition ◽  
Weight Gain ◽  
Moisture Content ◽  
Enzyme Activities ◽  
Protease Activity ◽  
Crude Protein ◽  
Digestive Enzyme ◽  
Hepatosomatic Index ◽  
Digestive Enzyme Activities ◽  
Dietary Starch

AbstractWe conducted an 8-week feeding trial to determine the effects of dietary starch levels on growth performance, body composition, and digestive enzyme activities of juvenile soft-shelled turtles. Six fish meal-based diets containing 120, 180, 240, 300, 360 and 420 g kg−1 cornstarch were formulated. Body weight gain (BWG), crude protein concentration in whole body, as well as protease activity increased with increasing dietary starch levels until the highest at 240–300 g kg−1, but it was decreased at higher dietary starch content. In contrast, the feed conversion ratio, moisture content and hepatosomatic index were the lowest at 240–300 g kg−1 of cornstarch. The weight gain correlated significantly with the survival rate, the crude protein composition and the protease activity, but correlated negatively to the moisture content and the hepatosomatic index. The optimal dietary starch levels for the maximum BWG and maximum protease activity were 267.25 g kg−1 and 266.79 g kg−1, respectively. The α-amylase activity was the lowest at 120 g · kg−1 of cornstarch, and increased with increasing cornstrach content. The lipase activity and the amount of crude lipid in the turtles were not influenced by dietary cornstarch. Our results suggest that around 300 g kg−1 of cornstarch in diets is optimal for juvenile soft-shelled turtles.

Changes in digestive enzyme activities during the early ontogeny of the South American cichlid (Cichlasoma dimerus)

2021 ◽  
Author(s):  
Francisco Javier Toledo-Solís ◽  
Andrea Guadalupe Hilerio-Ruiz ◽  
Tomás Delgadin ◽  
Daniela Pérez Sirkin ◽  
María Paula Di Yorio ◽  
...  
Keyword(s):  
Enzyme Activities ◽  
Digestive Enzyme ◽  
Early Ontogeny ◽  
South American ◽  
The South ◽  
Digestive Enzyme Activities
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