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

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

doi:10.3390/microorganisms11102474

Microorganisms (Oct 2023)

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

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

Affiliations

Taoran Du: Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
Pinghua Li: Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
Qing Niu: Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
Guang Pu: Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
Binbin Wang: Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
Gensheng Liu: Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
Pinghui Li: Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
Peipei Niu: Huaian Academy, Nanjing Agricultural University, Huaian 223005, China
Zongping Zhang: Huaian Academy, Nanjing Agricultural University, Huaian 223005, China
Chengwu Wu: Huaian Academy, Nanjing Agricultural University, Huaian 223005, China
Liming Hou: Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
Mette Skou Hedemann: Depatment of Animal Science, Aarhus University, 8830 Tjele, Denmark
Qingbo Zhao: Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
Ruihua Huang: Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science & Technology, Nanjing Agricultural University, Nanjing 210095, China

DOI: https://doi.org/10.3390/microorganisms11102474
Journal volume & issue: Vol. 11, no. 10
p. 2474

Abstract

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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 p p 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.

Published in Microorganisms

ISSN: 2076-2607 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Biology (General)
Website: https://www.mdpi.com/journal/microorganisms

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