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Article

Influence of Mushroom Polysaccharide, Nano-Copper, Copper Loaded Chitosan, and Lysozyme on Intestinal Barrier and Immunity of LPS-mediated Yellow-Feathered Chickens

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State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
2
Department of Poultry Production, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt
*
Author to whom correspondence should be addressed.
These authors contributed equally.
Animals 2020, 10(4), 594; https://doi.org/10.3390/ani10040594
Received: 1 February 2020 / Revised: 12 March 2020 / Accepted: 25 March 2020 / Published: 1 April 2020
(This article belongs to the Section Poultry)
Recently, there has been an increasing worldwide interest in limiting or banning the use of synthesized antibiotic growth promoters used in animal production, so as to avoid the development of the drug resistance of human pathogens. This is accelerating the efforts of scientists to present new, natural and safe antibiotic alternatives that are adequate for animal and poultry production. This study contributes by evaluating some potent antibiotic alternatives in growing yellow feathered chicks, including mushroom polysaccharides, nano-copper, copper loaded chitosan, and lysozyme, versus a common antibiotic (Aureomycin). The dietary addition of the tested substances has demonstrated several beneficial effects, particularly in the case of polysaccharides (100 mg/kg) and lysozyme (500 mg/kg), on jejunal barrier, and immunity of yellow-feathered chicks aged 4–24 days, with comparable effects to the antibiotic treatment.
This study investigated the influence of dietary supplementation with some antibiotic alternatives on growth performance, intestinal barrier, and immunity of lipopolysaccharide (LPS) challenged chicks. Wenshi females, aged 4 days, were allocated randomly into eight groups, each with six replicates of 20 birds (n = 120/treatment), which received a basal diet supplemented with 0 (control), 0 (LPS), 200 mg/kg aureomycin, 50 mg/kg mushroom polysaccharide, 100 mg/kg mushroom polysaccharide, 500 mg/kg nano-copper, 300 mg/kg copper loaded chitosan, and 500 mg/kg lysozyme for 21 days. On day 18 and 20, the control birds were injected with 0.5 mL saline solution, the other treatments were injected with 0.5 mL saline containing 500 µg LPS/kg body weight (BW). The results indicated that LPS treatment reduced the BW, average daily gain (ADG), and daily feed intake (ADFI) than the controls (p < 0.05), and the antibiotic and the tested alternatives could not retrieve the normal BW, ADG, and ADFI. The tested additives reduced several negative effects of LPS; they reduced diamine oxidase activity and inflammatory mediators in plasma, jejunal mucosa, spleen and thymus, increased content of immunoglobulin in plasma and jejunal mucosa, and decreased gene expression of inducible nitric oxide synthase and Cyclooxygenase 2 in jejunal mucosa. View Full-Text
Keywords: feed additives; intestinal immunity; growth performance; nano-nutrients; antibiotic alternatives; growing chickens feed additives; intestinal immunity; growth performance; nano-nutrients; antibiotic alternatives; growing chickens
MDPI and ACS Style

Fan, Q.; Abouelezz, K.F.M.; Li, L.; Gou, Z.; Wang, Y.; Lin, X.; Ye, J.; Jiang, S. Influence of Mushroom Polysaccharide, Nano-Copper, Copper Loaded Chitosan, and Lysozyme on Intestinal Barrier and Immunity of LPS-mediated Yellow-Feathered Chickens. Animals 2020, 10, 594. https://doi.org/10.3390/ani10040594

AMA Style

Fan Q, Abouelezz KFM, Li L, Gou Z, Wang Y, Lin X, Ye J, Jiang S. Influence of Mushroom Polysaccharide, Nano-Copper, Copper Loaded Chitosan, and Lysozyme on Intestinal Barrier and Immunity of LPS-mediated Yellow-Feathered Chickens. Animals. 2020; 10(4):594. https://doi.org/10.3390/ani10040594

Chicago/Turabian Style

Fan, Qiuli, K. F.M. Abouelezz, Long Li, Zhongyong Gou, Yibing Wang, Xiajing Lin, Jinling Ye, and Shouqun Jiang. 2020. "Influence of Mushroom Polysaccharide, Nano-Copper, Copper Loaded Chitosan, and Lysozyme on Intestinal Barrier and Immunity of LPS-mediated Yellow-Feathered Chickens" Animals 10, no. 4: 594. https://doi.org/10.3390/ani10040594

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