Effects of ammonia stress on liver microstructure, antioxidant capability and inflammation‐related genes and post‐exposure recovery in the hybrid sturgeon ( Acipenser baerii ♀ ×  Acipenser schrencki ♂)

2021 ◽  
Author(s):  
Qian Qi ◽  
Chunnuan Zhang ◽  
Shun Shi ◽  
Xiaolin Liu ◽  
Yang Liu ◽  
...  
Keyword(s):  
Acipenser Baerii ◽  
Post Exposure ◽  
Hybrid Sturgeon ◽  
Ammonia Stress

scholarly journals Dietary magnesium requirement on dietary minerals and physiological function of juvenile hybrid sturgeon (Acipenser schrenckii♀ × Acipenser baerii♂)

2021 ◽  
Author(s):  
Yuanyuan Zhang ◽  
Ze Fan ◽  
Di Wu ◽  
Jinnan Li ◽  
Qiyou Xu ◽  
...  
Keyword(s):  
Magnesium Content ◽  
The Body ◽  
Whole Body ◽  
Magnesium Concentration ◽  
Acipenser Baerii ◽  
Body Tissues ◽  
Juvenile Sturgeon ◽  
Growth Metrics ◽  
Dietary Magnesium ◽  
Hybrid Sturgeon

AbstractSturgeons are an economically important freshwater aquacultural fish in China and elsewhere. Research was conducted to study the magnesium requirement of juvenile hybrid sturgeon (Acipenser schrenckii♀ × Acipenser baerii♂) based on mineral composition, proximate chemical analysis, antioxidant enzyme levels, and growth metrics. Different levels of magnesium supplements (43.2, 157.3, 326.5, 549.6, 743.9, 938.4, and 1118.2 mg kg−1) were fed to juvenile sturgeon for 8 weeks. Five hundred twenty-five juvenile hybrid sturgeons (an average initial body weight of 7.65 g) were randomly divided into 7 groups with 3 replicates each (25 fish per replicate, tanks of 100×50×50 cm, dissolved oxygen ≥ 5.0 mg L−1, 12 light:12 dark) and fed 4 times per day with the experimental diets containing 40.78% crude protein and 10.03% crude fat. The body tissues and blood of fish were then sampled and analyzed. Growth performance was not significantly different between treatments (P>0.05). The optimal dietary magnesium requirement for hybrid sturgeon was estimated to be 355.16, 573.6, or 584.6 mg kg−1 dietary magnesium based on whole-body Mg retention, the whole-body or vertebrae magnesium content versus dietary magnesium levels. The whole-body calcium to phosphorus ratio of the 43.2 and 326.5 mg kg−1 groups was significantly higher than that of the 938.4 mg kg−1 group (P< 0.05). A dietary magnesium concentration of 350–700 mg kg−1 improved the antioxidant capacity by decreasing the serum malondialdehyde and enhancing serum superoxide dismutase, glutathione peroxidase, and catalase activities.

scholarly journals 1H NMR-based metabolomics investigation of dietary soybean meal substitution in hybrid sturgeon (Acipenser baerii ♀× A. schrenckii ♂)

2019 ◽  
Author(s):  
Hua-mei Yue ◽  
Jin-ping Wu ◽  
Rui Ruan ◽  
Huan Ye ◽  
Xi-hua Chen ◽  
...  
Keyword(s):  
1H Nmr ◽  
Soybean Meal ◽  
Intestinal Inflammation ◽  
Serum Biochemistry ◽  
Diet Group ◽  
Hepatosomatic Index ◽  
Negative Effects ◽  
Soybean Proteins ◽  
Acipenser Baerii ◽  
Hybrid Sturgeon

Abstract Background: Soybean proteins is the most widely used alternative protein sources for fish meal in aquafeed. However, soybean meal (SBM) substitution imposes negative effects such as growth restriction and intestinal inflammation. Limited reports were concentrated on the metabolic alterations in fish. Results: A ten-week feeding trial was conducted to examine the effect of dietary SBM substitution on growth performance, serum biochemistry and metabolism in hybrid sturgeon. It was showed that 25% SBM substitution produced the highest weight gain, with hepatosomatic index reduced significantly in the 50% and 100% SBM substitution groups. Besides, SBM diet led to significant increase of the glutamic-pyruvic transaminase concentration in the 100% SBM diet group. Moreover, SBM diets higher than 50% resulted in hepatic injury of lipid droplet accumulation by histological analysis. 1H NMR method was applied to detect metabolite changes in liver and serum. Totally, 47 and 50 representative metabolites were screened in liver and serum, respectively. The subsequent PLS-DA analysis identified 23 in liver and 10 in serum of metabolites affected by SBM substitution through pairwise comparisons, respectively. The following pathway enrichment revealed 9 in liver and 17 in serum of perturbed pathways, respectively. Among them, pathway of phenylalanine, tyrosine and tryptophan biosynthesis with two differentiated metabolites (phenylalanine and tyrosine) involved deserved the highest impact factor, which indicated severe liver damage by SBM diets.

Dietary arginine requirement of juvenile hybrid sturgeon (Acipenser schrenckii♀ × Acipenser baerii♂)

2017 ◽  
Vol 48 (10) ◽  
pp. 5193-5201 ◽  
Author(s):  
Liansheng Wang ◽  
Junguang Wu ◽  
Chang'an Wang ◽  
Jinnan Li ◽  
Zhigang Zhao ◽  
...  
Keyword(s):  
Acipenser Baerii ◽  
Hybrid Sturgeon
Sign in / Sign up

Export Citation Format

Share Document