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Dietary grape seed proanthocyanidins improved growth, immunity, antioxidant, digestive enzymes activities, and intestinal microbiota of juvenile hybrid sturgeon (Acipenser baeri Brandt ♀ × A. schrenckii Brandt ♂)
Aquaculture Nutrition ( IF 3.5 ) Pub Date : 2021-09-12 , DOI: 10.1111/anu.13334
Guanling Xu 1 , Wei Xing 1 , Tieliang Li 1 , Huanhuan Yu 1 , Shibo Wei 2 , Na Jiang 1 , Zhihong Ma 1 , Lin Luo 1
Affiliation  

An 8-week growth trial was performed to evaluate the effects of grape seed proanthocyanidins (GSPs) on growth, digestive enzymes, body composition, intestinal microbiota, serum immunological, anti-oxidative and biochemical parameters of juvenile hybrid sturgeon (Acipenser baeri Brandt ♀ × A. schrenckii Brandt ♂). Fish were randomly divided to control, GSPs-50 and GSPs-100 groups, which were fed with a basal diet and basal diet supplemented with 50 and 100 mg/kg GSPs, respectively. Growth performance and digestive enzymes were improved by GSPs in sturgeon (< .05). Lysozyme was clearly increased in serum when sturgeon fed with GSPs diets, while the thiobarbituric acid reactive substances (TBARS) displayed opposite trend (< .05). Myeloperoxidase and glutathione peroxidase in serum of GSPs-50 were higher than control and GSPs-100 (< .05). Serum parameters showed alanine aminotransferase, alkaline phosphatase and γ-glutamyl transpeptidase of GSPs-50 were lower than control (< .05). Compared with the control treatment, GSPs-100 reduced alanine aminotransferase and γ-glutamyl transpeptidase and increased aspartate aminotransferase and lactate dehydrogenase (< .05). High-throughput sequencing revealed that adding 50 mg/kg GSPs not only modified the microbiota diversity, but also reduced the relative abundance of Aeromonas in sturgeon intestine. In conclusion, GSPs are a promising feed additive to promote growth, immunity, antioxidant and digestive enzyme activities and improve serum biochemical parameters and intestinal microbiota of hybrid sturgeon.

中文翻译:

膳食葡萄籽原花青素改善杂交鲟幼鱼 (Acipenser baeri Brandt ♀ × A. schrenckii Brandt ♂) 的生长、免疫、抗氧化、消化酶活性和肠道微生物群

进行了为期 8 周的生长试验,以评估葡萄籽原花青素 (GSPs) 对杂交鲟幼鱼生长、消化酶、身体成分、肠道菌群、血清免疫学、抗氧化和生化参数的影响 ( Acipenser baeri Brandt ♀ ×  A. schrenckii Brandt ♂)。将鱼随机分为对照组、GSPs-50 和 GSPs-100 组,分别饲喂基础日粮和添加 50 和 100 mg/kg GSPs 的基础日粮。GSPs 提高了鲟鱼的生长性能和消化酶( < .05)。鲟鱼饲喂 GSPs 饲料时血清中溶菌酶明显升高,而硫代巴比妥酸反应物质 (TBARS) 呈相反趋势 ( < .05)。GSPs-50 血清中髓过氧化物酶和谷胱甘肽过氧化物酶高于对照和GSPs-100 ( < .05)。血清参数显示GSPs-50的丙氨酸氨基转移酶、碱性磷酸酶和γ-谷氨酰转肽酶低于对照( < .05)。与对照处理相比,GSPs-100 降低了丙氨酸氨基转移酶和 γ-谷氨酰转肽酶,提高了天冬氨酸氨基转移酶和乳酸脱氢酶 ( < .05)。高通量测序显示,添加 50 mg/kg GSPs 不仅改变了微生物群的多样性,而且降低了气单胞菌的相对丰度在鲟鱼肠内。总之,GSPs是一种很有前景的饲料添加剂,可促进杂交鲟的生长、免疫、抗氧化和消化酶活性,改善血清生化参数和肠道菌群。
更新日期:2021-09-12
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