Dietary citric acid improves growth performance, feed utilization, phosphorus utilization, lateral scute hardness, and duodenal microstructure in juvenile hybrid sturgeon (Acipenser baerii ♀ × A. schrenckii ♂)

Guo, Zixue; Li, Ling; Liu, Tianyu; Wang, Yue; Li, Ziran; Zhang, Peiyu; Liu, Haiyan

doi:10.1016/j.aqrep.2023.101833

Cited by 1 publication

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“…The fixed intestinal tissues were dehydrated step-by-step with different concentrations of alcohol and xylene in a mixed xylene solution, which was followed by waxing, embedding, and slicing, as described by Guo et al (2023) [ 27 ]. The intestinal sections were stained using hematoxylin and eosin (H&E).…”

Section: Methodsmentioning

confidence: 99%

Comparative Analysis of Physiological Responses and Intestinal Microbiota in Juvenile Soft-Shelled Turtle (Pelodiscus sinensis) Fed Four Types of Dietary Carbohydrates

Sun,

Zhang,

Ren

et al. 2024

Animals

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A 60 day feeding trial was conducted to evaluate the impacts of dietary carbohydrates with different complexities and configurations on the growth, plasma parameters, apparent digestibility, intestinal microbiota, glucose, and lipid metabolism of soft-shelled turtles (Pelodiscus sinensis). Four experimental diets were formulated by adding 170 g/kg glucose, fructose, α-starch, or cellulose, respectively. A total of 280 turtles (initial body weight 5.11 ± 0.21 g) were distributed into 28 tanks and were fed twice daily. The results showed that the best growth performance and apparent digestibility was observed in the α-starch group, followed by the glucose, fructose, and cellulose groups (p < 0.05). Monosaccharides (glucose and fructose) significantly enhanced the postprandial plasma glucose levels and hepatosomatic index compared to polysaccharides, due to the un-inhibited gluconeogenesis (p < 0.05). Starch significantly up-regulated the expression of the genes involved in glycolysis, pentose phosphate pathway, lipid anabolism and catabolism, and the transcriptional regulation factors of glycolipid metabolism (srebp and chrebp) (p < 0.05), resulting in higher plasma triglyceride levels and lipid contents in the liver and the whole body. The fructose group exhibited a lower lipid deposition compared with the glucose group, mainly by inhibiting the expression of srebp and chrebp. Cellulose enhanced the proportion of opportunistic pathogenic bacteria. In conclusion, P. sinensis utilized α-starch better than glucose, fructose, and cellulose.

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Section: Methodsmentioning

confidence: 99%