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Effect of enzymatically hydrolyzed scallop visceral protein powder used as a replacement of fish meal on the growth performance, immune responses, intestinal microbiota and intestinal morphology of broiler chickens
Xing, R. E.1,2; Yang, H. Y.1,2; Wang, X. Q.1,2; Yu, H. H.1,2; Liu, S.1,2; Chen, X. L.1,2; Li, P. C.1,2
2018
发表期刊LIVESTOCK SCIENCE
卷号207页码:15-24
文章类型Article
摘要The purpose of this study was to investigate the potential of using dietary supplemental enzymatically hydrolyzed scallop visceral protein (EHSVP) and scallop visceral protein (SV) to replace fishmeal with regard to the growth performance, carcass characteristics, immune response, intestinal microbiota, and intestinal morphology of broiler thickens. A total of 300 1-d-old broiler chickens were randomly assigned to 6 treatments with 5 cages per treatment and 10 broiler chickens per cage. The broiler chickens received a basal diet supplemented with 3% fishmeal or different concentrations of EHSVP (1%, 2%, and 3%) and SV (2% and 3%) treatments until d 42. Broiler chickens fed a diet with 2% EHSVP supplementation exhibited a greater average daily weight gain (P < 0.05) and lower feed conversion ratio. The carcass yield, eviscerated yield, and leg muscle yield of broiler chickens fed a diet with 2% EHSVP supplementation were increased (P < 0.05) and the abdominal fat rate was decreased compared with broiler chickens fed fishmeal diet (P < 0.05). Broiler chickens fed a diet with 2% EHSVP supplementation were increased the activities of digestive enzymes (P < 0.05); moreover, it inhibited colonization of E. coil and Salmonella pathogenic bacteria and increased the numbers of Lactobacillus and Bifidobacterium (P < 0.05). For EHSVP and SV supplementation, especially 2% EHSVP, the length of the duodenum, jejunum, and ileum as well as the weight of spleen, thymus, and bursa immune organs were increased (P < 0.05). Furthermore, 2% EHSVP supplementation increased the villus height and villus height:crypt depth ratio and decreased the crypt depth (P < 0.05), thereby improving intestinal development. In conclusion, as a fishmeal replacement, EHSVP supplementation can significantly improve growth performance, carcass characteristics, and weight of immune organs as well as promote the development of the small intestine. At the same time, supplementation can also significantly improve gut health and the intestinal microbial environment in broiler chickens. A diet with EHSVP supplementation is more effective in improving the growth performance, carcass characteristics, immune response, intestinal microbiota, and intestinal morphology of broiler chickens than SV. Therefore, fishmeal can be partially replaced by EHSVP.
关键词Broiler Chickens Enzymatic Hydrolysis Scallop Visceral Growth Performance Immune Response Intestinal Microbial Environment
DOI10.1016/j.livsci.2017.10.004
收录类别SCI
语种英语
WOS记录号WOS:000424172800003
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/154340
专题实验海洋生物学重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Drugs & Bioprod, 1 Wenhai Rd, Qingdao 266237, Peoples R China
推荐引用方式
GB/T 7714
Xing, R. E.,Yang, H. Y.,Wang, X. Q.,et al. Effect of enzymatically hydrolyzed scallop visceral protein powder used as a replacement of fish meal on the growth performance, immune responses, intestinal microbiota and intestinal morphology of broiler chickens[J]. LIVESTOCK SCIENCE,2018,207:15-24.
APA Xing, R. E..,Yang, H. Y..,Wang, X. Q..,Yu, H. H..,Liu, S..,...&Li, P. C..(2018).Effect of enzymatically hydrolyzed scallop visceral protein powder used as a replacement of fish meal on the growth performance, immune responses, intestinal microbiota and intestinal morphology of broiler chickens.LIVESTOCK SCIENCE,207,15-24.
MLA Xing, R. E.,et al."Effect of enzymatically hydrolyzed scallop visceral protein powder used as a replacement of fish meal on the growth performance, immune responses, intestinal microbiota and intestinal morphology of broiler chickens".LIVESTOCK SCIENCE 207(2018):15-24.
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