Identification of gut microbes associated with feed efficiency by dailyphase feeding strategy in growing-finishing pigs

Identification of gut microbes associated with feed efficiency by dailyphase feeding strategy in growing-finishing pigs

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Qin Jiang^a^,^b^,^c, Chunlin Xie^a^,^b^,^c, Lingli Chen^a^,^b^,^c, Hongli Xiao^a^,^b^,^c, Zhilian Xie^a^,^b^,^c, Xiaoyan Zhu^a^,^b^,^c, Libao Ma^a^,^b^,^c, Xianghua Yan^a^,^b^,^c^,^*

Animal Nutrition | 2023, 12(1) : 42 - 53

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Animal Nutrition | 2023, 12(1): 42-53

• Original Research Article •

Identification of gut microbes associated with feed efficiency by dailyphase feeding strategy in growing-finishing pigs

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Qin Jiang^a^,^b^,^c, Chunlin Xie^a^,^b^,^c, Lingli Chen^a^,^b^,^c, Hongli Xiao^a^,^b^,^c, Zhilian Xie^a^,^b^,^c, Xiaoyan Zhu^a^,^b^,^c, Libao Ma^a^,^b^,^c, Xianghua Yan^a^,^b^,^c^,^*

Affiliations

^aState Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Frontiers Science Center for Animal Breeding and Sustainable Production, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China

^bThe Cooperative Innovation Center of Sustainable Pig Production, Wuhan, Hubei 430070, China

^cHubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety Technology, Wuhan, Hubei 430070, China

Published: 2023-03-10 doi: 10.1016/j.aninu.2022.09.005

Outline

Abstract

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Feed efficiency is one of the most important issues for sustainable pig production. Daily-phase feeding (DPF) is a form of precision feeding that could improve feed efficiency in pigs. Gut microbiota can regulate host nutrient digestion, absorption, and metabolism. However, which key microbes may play a vital role in improving the feed efficiency during DPF remains unclear. In the present study, we used a DPF program compared to a three-phase feeding (TPF) program in growing-finishing pigs to investigate the effects of gut microbiota on feed efficiency. A total of 204 Landrace × Yorkshire pigs (75d) were randomly assigned into 2 treatments. Each treatment was replicated 8 times with 13 to 15 pigs per replicate pen. Pigs in the TPF group were fed with a commercial feeding program that supplied fixed feed for phases Ⅰ, Ⅱ, and Ⅲ, starting at 81, 101, and 132d of age, respectively, and pigs in the DPF group were fed a blend of adjacent phase feed from 81 to 155d at a gradual daily ratio and phase III feed from 155 to 180d of age. Daily feed intake and body weight were recorded by a computerized device in the feeders. Feces and blood samples were collected from 1 pig per replicate at 155 and 180d of age. The results showed that the DPF program remarkably improved the feed efficiency at 155d (P < 0.001) and 180d of age (P < 0.001), with a significant reduction of the intake of crude protein (P < 0.01), net energy (P < 0.001), crude fiber (P < 0.001), ether extract (P < 0.01), and ash (P < 0.001). The daily-phase feeding program increased the abundance of Prevotella copri (P < 0.05) and Paraprevotella clara (P < 0.05), while it decreased the abundance of Ocilibacter (P < 0.05) at 155d of age. The results of correlation analysis indicated that the differentially abundant microbiota communities were closely associated with 20 metabolites which enriched amino acid and phenylalanine metabolism. Our results suggest that 2 key microbes may contribute to feed efficiency during daily-phase feeding strategies in pigs.

Key words

Daily-phase feeding / Feed efficiency / Gut microbiota / Nutrient metabolism / Pig

Cite this Article

Qin Jiang, Chunlin Xie, Lingli Chen, Hongli Xiao, Zhilian Xie, Xiaoyan Zhu, Libao Ma, Xianghua Yan. Identification of gut microbes associated with feed efficiency by dailyphase feeding strategy in growing-finishing pigs[J]. Animal Nutrition, 2023 , 12 (1) : 42 -53 . DOI: 10.1016/j.aninu.2022.09.005

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Year 2023 volume 12 Issue 1

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Article Info

doi: 10.1016/j.aninu.2022.09.005

Receive Date：2022-04-12
Online Date：2026-02-03
Published：2023-03-10

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History

Received：2022-04-12
Revised：2022-09-03
Accepted：2022-09-15

Affiliations

^bThe Cooperative Innovation Center of Sustainable Pig Production, Wuhan, Hubei 430070, China

^cHubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety Technology, Wuhan, Hubei 430070, China

Corresponding:

^* Corresponding author. E-mail address: xhyan@mail.hzau.edu.cn (X. Yan).

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表12种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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