文献类型： 外文期刊

作者： Liu, Zhonghao ¹ ; Li, Ning ¹ ; Zheng, Zi ¹ ; Zhang, Chunhua ¹ ; Liu, Zhengqun ¹ ; Song, Chunling ² ; Yan, Jun ¹ ; Mu, Shuqin ¹ ;

作者机构： 1.Tianjin Acad Agr Sci, Inst Anim Husb & Vet Med, Tianjin 300381, Peoples R China

2.Beijing Tianfulai Biol Technol Co Ltd, Beijing 102206, Peoples R China

关键词： finishing pigs; feces microbiota; Lonicera japonica crude extracts; Radix Puerariae crude extracts; nutrient apparent digestibility

期刊名称：ANIMALS （ 影响因子：3.231； 五年影响因子：3.312 ）

ISSN： 2076-2615

年卷期： 2022 年 12 卷 16 期

页码：

收录情况： SCI

摘要： Simple Summary This study evaluated the effects of Lonicera japonica and Radix Puerariae crude extracts as feed additives on finishing pigs. The results indicated diets supplemented with L. japonica and Radix Puerariae crude extracts improved growth performance, abundance of beneficial bacteria in feces, and digestibility of crude protein and total phosphorus in finishing pigs. These results suggest that Lonicera japonica and Radix Puerariae crude extracts could be a good feed additives for finishing pigs feeding. This study aims to investigate the influence of adding Lonicera japonica (L. japonica) and Radix Puerariae crude extracts and their mixture to the diet of finishing pigs on their fecal microbes and nutrient apparent digestibility. A total of 72 healthy Duroc x Landrace x Yorkshire crossbred barrows without significant differences in body weight (93 +/- 2 kg) were selected and randomly divided into four groups (18 in each group). Three replicate pens per group (six pigs per pen) were used, and two pigs were evaluated for each pen. The groups were fed the following diets: control group (CON), basic diet; chlorogenic acid group (CGA group), basic diet + 1 kg/ton L. japonica crude extract; Pueraria flavonoid group (PF group), basic diet + 1 kg/ton Radix Puerariae crude extract; and mix group (Mix group), basic diet + 0.5 kg/ton L. japonica crude extract + 0.5 kg/ton Radix Puerariae crude extract. The following results were obtained: (1) At the phylum level, Bacteroidetes, Firmicutes, Spirochaetes, Proteobacteria, Fibrobaeteres, and Kiritimatiellaeota were the main components of the fecal microbiota (top 5); the relative abundance of bacteria from phyla Firmicutes significantly increased in the Mix group than in the CON group (p < 0.05). At the genus level, Treponema_2, Rikenellaceae_RC9_gut_group, uncultured_bacterium_f_Lachnospiraceae, uncultured_bacterium_f_Prevotellaceae, and Prevotellaceae_NK3B31_group were the main components of the fecal microbiota (top 5); the relative abundance of bacteria from genus Lactobacillus significantly increased in the Mix group than in the CON group (p < 0.05). Chao1 and Ace counts were significantly higher in group CGA than in the CON group and group Mix (p < 0.05). The alpha and beta diversities and the relative abundance of fecal microbes were higher in all test groups than in the CON group. (2) The protein digestibility was significantly higher in the CGA and PF groups than in the CON group, and the TP digestibility was significantly higher in the CGA than in the CON and Mix groups (p < 0.05). In conclusion, Lonicera japonica and Radix Puerariae crude extract supplementation in the diet significantly changed fecal microbiota and improved the protein and TP digestibility of finishing pigs.