کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8502071 1553925 2018 37 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
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
ترجمه فارسی عنوان
اثر پودر پروتئین احشایی الماس هیدرولیز شده اسکالپول به عنوان جایگزین غذای ماهی بر عملکرد رشد، پاسخ ایمنی، میکروبیوتای روده و مورفولوژی روده جوجه های گوشتی
کلمات کلیدی
جوجه های گوشتی، هیدرولیز آنزیمی، عصاره مرکزی، عملکرد رشد، پاسخ ایمنی، محیط میکروبی روده،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
چکیده انگلیسی
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 chickens. 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. coli 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Livestock Science - Volume 207, January 2018, Pages 15-24
نویسندگان
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