黄芪、淫羊藿、女贞子提取物和植物乳杆菌对高密度饲养条件下仔鹅生长的影响

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中图分类号：S835.5 文献标志码：A 文章编号：0366-6964（2025）10-5222-10

Abstract： This study aimed to establish a density stress model with a stocking density of 7 goslings per square meter. The effects of Astragalus ， Epimedium ，and Fructus Ligustri Lucidi （AEF） extract and Lactobacillus plantarum （LP） on body weight， immune function， antioxidant capacity， meat quality，intestinal morphology，and intestinal barrier integrity of goslings were investigated. The same batch of 42 one-month-old Ma'gang goslings were randomly divided into six groups： control group （c group），AEF treatment group （aef group），AEF and LP treatment group（aef +lp group），density stress group（s group），AEF and density stress group （s+ aef group），and AEF，LP，density stress group （ s+ aef+lp group）.The experiment lasted for

30 days. Goslings in the aef and s+ aef groups were fed with 0.1g∙mL-1 AEF water solvent， goslings in the aef and s+aef+lp groups were fed with 0.1g⋅mL-1 AEF and 0. 01g⋅mL-1 （204号 LP water solvents once daily. The results indicated that supplementation with AEF only and supplemented with AEF and LP together aleviated stress-induced weight loss and reduced serum level of CORT and decreased the expression of inflammatory factors. Furthermore，addition of AEF and LP significantly enhanced relative mRNA expresson of the tight junctional proteins Occludin in the jejunum. Intestinal morphology results showed that vili in the duodenum and jejunum of goslings were shorter and sparser under stress， and the villi height to crypt depth ratio （Vh/Cd） decreased significantly as well. Treatment with AEF and AEF+LP increased villus height and improved Vh/Cd in the small intestine. In summary，AEF and AEF+LP （204号 adding to the water enhanced gosling weight，immune performance，antioxidant capacity，and improved intestinal health under stress. These findings provide new insights for enhancing productivity and preventing stress in goslings.

Keywords： Ma'gang goslings; density stress; immune performance; antioxidant capacity ∗ Corresponding authors： WANG Wei， E-mail： wang_wei99 @jlu. edu. cn; ZHOU Shuo，E-mail： shuozhou zju. edu. cn

中国是全球最大的鹅饲养国，鹅养殖量占全球90% 以上，鹅养殖已成为中国家禽行业的支柱产业之一。（剩余13820字）