Compound bioengineering protein supplementation improves intestinal health and growth performance of broilers

Y.T. Tang; S.G. Yin; C.F. Peng; J.Y. Tang; G. Jia; L.Q. Che; G.M. Liu; G. Tian; X.L. Chen; J.Y. Cai; B. Kang; H. Zhao

Poultry Science (Nov 2023)

Compound bioengineering protein supplementation improves intestinal health and growth performance of broilers

Y.T. Tang,
S.G. Yin,
C.F. Peng,
J.Y. Tang,
G. Jia,
L.Q. Che,
G.M. Liu,
G. Tian,
X.L. Chen,
J.Y. Cai,
B. Kang,
H. Zhao

Affiliations

Y.T. Tang: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
S.G. Yin: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
C.F. Peng: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
J.Y. Tang: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
G. Jia: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
L.Q. Che: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
G.M. Liu: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
G. Tian: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
X.L. Chen: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
J.Y. Cai: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
B. Kang: College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
H. Zhao: Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Ministry of Agriculture and Rural Affairs of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; Corresponding author:

Journal volume & issue: Vol. 102, no. 11
p. 103037

Abstract

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ABSTRACT: Currently, antimicrobial peptides (AMPs) are of growing interest as potential substitutes for antibiotic growth promoters in animal production. The present study was conducted to evaluate the effects of dietary supplementation of bioengineering artificial Parasin I protein (API) and artificial plectasin protein (APL) (named as compound bioengineering protein, CBP) on growth performance and intestinal health of broilers. A total of 450 one-day-old Arbor Acres male healthy broilers were randomly allotted to 5 dietary groups with 10 replicates of 9 individuals in each replicate and supplemented with 0, 250, 500, 750, and 1,000 mg/kg CBP for 6 wk. Dietary CBP supplementation increased (P < 0.01) body weight (6 wk), average daily gain (0–6 wk), and average daily feed intake (3–6 wk and 0–6 wk). CBP addition enhanced antioxidant capacity, which was accompanied by the higher (P < 0.05) activity of serum total antioxidant capacity (T-AOC) (750 mg/kg), jejunal glutathione peroxidase (750 mg/kg), and T-AOC (500 and 1,000 mg/kg). Dietary CBP addition improved intestinal health, reflecting by the increased (P < 0.05) villus height to crypt depth ratio in the duodenum, the upregulated (P < 0.01) mRNA levels of claudin-1 (500 and 750 mg/kg) in the ileum, the downregulated (P < 0.01) mRNA expression of occludin (500 mg/kg) in the duodenum and claudin-1 (500 mg/kg) and occludin (500 and 750 mg/kg) in the jejunum, and the upregulated mRNA expression of (P < 0.01) mucin2 (MUC2) (1,000 mg/kg) in the duodenum. In addition, CBP upregulated (P < 0.01) IL-10 (1,000 mg/kg) in duodenum and ileum, and downregulated (P < 0.05) the mRNA expression of IL-6 (750 and 1,000 mg/kg), interferon-γ (1,000 mg/kg) in the jejunum and TNF-α (250 mg/kg) in the ileum. Furthermore, dietary CBP increased (P < 0.01) the abundance of total bacteria and Lactobacillus (500 and 750 mg/kg), and reduced (P < 0.05) the abundance of Escherichia coli (750 mg/kg) in the cecum. In conclusion, CBP supplementation enhances the antioxidant capacity, intestinal health, immune function, and ameliorates the gut microflora population, thus improving the growth performance of broilers. Dietary supplementation of 750 mg/kg CBP exhibits a better beneficial effect.

Published in Poultry Science

ISSN: 0032-5791 (Print); 1525-3171 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Agriculture: Animal culture
Website: https://www.journals.elsevier.com/poultry-science

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