Effects of three probiotics and their interactions on the growth performance of and nutrient absorption in broilers

被引：20

作者：

Zhang, Lihuan ^{[1
]}

Wang, Yanfei ^{[1
]}

Zhang, Ruonan ^{[1
]}

Jia, Hao ^{[1
]}

Liu, Xuan ^{[1
]}

Zhu, Zhiwei ^{[1
]}

机构：

[1] Shanxi Agr Univ, Jinzhong, Peoples R China

来源：

PEERJ | 2022年 / 10卷

基金：

中国国家自然科学基金;

关键词：

Probiotics; Growth performance; Digestion and absorption; Intestinal morphology; GLUT2; DIRECT-FED MICROBIALS; ENZYME-ACTIVITIES; INTESTINAL MICROFLORA; GLUCOSE-ABSORPTION; DIGESTIVE ENZYMES; IMMUNE-RESPONSE; ORGANIC-ACIDS; MORPHOLOGY; EXPRESSION; SUPPLEMENTATION;

D O I：

10.7717/peerj.13308

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The purpose of this study was to investigate the effects of three probiotics and their interactions on growth performance, intestinal digestion and absorption, and nutrient transporters in broilers. A total of 350 one-day-old male Arbor Acres broilers were randomly divided into seven groups: the control group (broilers receiving normal drinking water), groups P1, P2 and P3 (broilers receiving drinking water with 1% Lactobacillus casei, Lactobacillus acidophilus and Bifidobacterium lactis respectively) and groups CP1, CP2 and CP3 (broilers receiving drinking water with a 1% compound probiotic mixture in 2:1:1, 1:2:1, 1:1:2 ratios, respectively). The feeding period was divided into two experimental periods: 1 similar to 21 days and 22 similar to 42 days. Compared to those in the control group, the broiler slaughter indexes and average daily feed intakes in the probiotics groups were not significantly different (P > 0.05), but the villus height in the small intestine increased significantly, and the crypt depth decreased significantly (P < 0.05). In the 1- to 21-day, experimental period, the broiler average daily gains in groups CP2 and CP3 were significantly greater than that in the control group. Amylase, lipase, and trypsin activities in the jejunum in groups CP and P3 increased significantly. GLUT2 mRNA expression in the probiotics group was significantly incresaed compared with that in the control group (P < 0.05). In the 22- to 42-day period, the average daily gain in the CP group was significantly greater than that in the control group. Amylase activity in the CP2 group, and lipase and trypsin activities in the CP, P1 and P3 groups increased significantly. The GLUT2 mRNA expression in the CP group increased significantly (P < 0.05). In summary, three probiotics and their interactions improved the digestibility and absorption of nutrients by increasing the activities of digestive enzymes, improving the morphology of the digestive tract, and upregulating the expression of GLUT2 mRNA in the intestinalcell membrane to improve the production performance in broilers.

引用

页数：18

共 54 条

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