Effects of Varying Levels of Wheat Bran Dietary Fiber on Growth Performance, Fiber Digestibility and Gut Microbiota in Erhualian and Large White Pigs

文献类型： 外文期刊

第一作者： Du, Taoran

作者： Du, Taoran;Li, Pinghua;Niu, Qing;Pu, Guang;Wang, Binbin;Liu, Gensheng;Li, Pinghui;Hou, Liming;Zhao, Qingbo;Huang, Ruihua;Li, Pinghua;Niu, Peipei;Zhang, Zongping;Wu, Chengwu;Hou, Liming;Huang, Ruihua;Niu, Qing;Hedemann, Mette Skou

作者机构： Nanjing Agr Univ, Inst Swine Sci, Coll Anim Sci & Technol, Minist Agr & Rural Affairs,Key Lab Evaluat & Utili, Nanjing 210095, Peoples R China;Nanjing Agr Univ, Huaian Acad, Huaian 223005, Peoples R China;Shanghai Acad Agr Sci, Inst Anim Husb & Vet Sci, Shanghai 201403, Peoples R China;Aarhus Univ, Dept Anim Sci, DK-8830 Tjele, Denmark

关键词： dietary fiber; Erhualian pigs; fiber tolerance; gut microbiota; growth performance

期刊名称：MICROORGANISMS （ 2022影响因子：4.5； 五年影响因子：4.8 ）

ISSN：

年卷期： 2023 年 11 卷 10 期

页码：

收录情况： SCI

摘要： To evaluate the tolerance of a high-fiber diet in Erhualian pigs (Er-HL), the present investigation systematically investigated the ramifications of varying wheat bran fiber levels, specified as total dietary fiber (TDF) values of 14.07%, 16.32%, 17.99%, and 18.85%, on growth performance, fiber digestibility and gut microbiota in Er-HL, large Large White pigs (L-LW, the same physiological stage as the Er-HL) and small Large White pigs (S-LW, the same body weight as the Er-HL). Our results revealed that fiber levels exerted no discernable impact on growth performance (average daily feed intake (ADFI), and average daily gain (ADG)) of Er-HL (p > 0.05). Conversely, L-LW exhibited a decrease in ADFI and ADG with increasing fiber levels (p < 0.05). Notably, the apparent total tract digestibility (ATTD) of various fiber components, including neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose, TDF and insoluble dietary fiber (IDF), in Er-HL were significantly higher than those in S-LW and L-LW irrespective of diets (p < 0.05). The ATTD of cellulose and hemicellulose in Er-HL significantly decreased with increasing fiber levels (p < 0.05), yet remained statistically indifferent when comparing the 7%-wheat-bran-replaced diet (7% WRB, TDF 16.32%) to the basal diet (TDF 14.07%) (p > 0.05). The cecal microbiota of Er-HL had higher richness estimators (Chao1 and ACE) than those of S-LW and L-LW irrespective of diets (p < 0.01). Breed serves as a pivotal determinant in shaping swine gut microbiota. Thirteen genera were selected as the key bacteria related to high fiber digestibility of Er-HL. Further functional examination of these key genera elucidated an enrichment of pathways pertinent to carbohydrate metabolism in Er-HL samples compared with S-LW and L-LW samples. In summary, Er-HL exhibited high-fiber tolerance both in terms of growth performance and fiber digestibility compared with Large White pigs. Specifically, the ATTD of NDF, ADF, hemicellulose, IDF and TDF were significantly higher in Er-HL compared with L-LW and S-LW, irrespective of diets. Fiber level exerted no discernable impact on growth performance (ADFI, ADG) and the ATTD of fiber (NDF, ADF, IDF and TDF) in Er-HL. The optimum fiber level of the Er-HL was identified as 7% WRB (TDF 16.32%). Thirteen genera were ascertained to significantly contribute to high fiber digestibility of Er-HL, correlating with an enhancement of carbohydrate metabolism pathways.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序