This study aimed to investigate the effects of fermented puffed feather meal(FPFM)on growth performance,serum biochemical indices,meat quality,and intestinal microbiota in Arbor Acres(AA)broilers.A single-factor desig...This study aimed to investigate the effects of fermented puffed feather meal(FPFM)on growth performance,serum biochemical indices,meat quality,and intestinal microbiota in Arbor Acres(AA)broilers.A single-factor design was adopted,and four treatments were administered with five replicates to 240 one-day-old AA broilers.The control group(group A)received a basal diet,while the experimental groups received a basal diet plus 33%(group B),67%(group C)and 100%(group D)FPFM,respectively.Compared with group A,(1)the average daily gain(ADG)in group C decreased(P<0.05),and the feed conversion ratio(FCR)in group D increased(P<0.05);(2)the level of serum urea nitrogen in treatment groups decreased(P<0.05),and the levels of triglyceride,high density lipoprotein,low density lipoprotein,cholesterol,and glucose contents in group D increased(P<0.05)at day 21;(3)the serum immunoglobulin M and immunoglobulin G in group B and the immunoglobulin A in group C increased(P<0.05)at day 21,and the serum immunoglobulin M and immunoglobulin G in group D decreased(P<0.05)at day 42;(4)the share force of breast muscle and thigh muscle in group D increased(P<0.05);(5)the villus height to crypt depth ratio in the jejunum of group B increased(P<0.05)at day 21,and the villus height in group C and D increased(P<0.05)at day 42;(6)the proteobacteria counts in the cecum digesta in treatment groups decreased(P<0.05)at day 21.The basal diet supplemented with 33%FPFM promoted protein metabolism,enhanced immunity and improved meat quality,promoted the digestion and absorption of nutrients,increased intestinal microbial diversity,and improved the content of beneficial bacteria without affecting the growth performance,it was possible to be used as a good substitute for fish meal.展开更多
A two-step biotechnological process was developed using Bacillus licheniformis S6 to provide a simple and economical procedure which significantly improved feather meal nutrition value. Compared with IFM (initial fea...A two-step biotechnological process was developed using Bacillus licheniformis S6 to provide a simple and economical procedure which significantly improved feather meal nutrition value. Compared with IFM (initial feather meal) and CFM (commercial feather meal), SFEFM (feather meal gained by solid fermentation and enzymolysis with continuous agitation) had a significant improvement (P〈0.05) in vitro digestibility, contents of oligopeptides and soluble protein released in digestive juice by pepsin- pancreatin digestion procedure, furthermore, some deficient essential amino acids in feather protein (histidine, methionine, lysine) were enhanced. Comapared with CFM, the oligopeptides released into digestive juice of ISFM (feather meal obtained by the biotechnological process described in the paper with intermittent shaking) was significantly enhanced (P〈O.05), and its in vitro digestibility was statistically (P〉0.05) equivalent to CFM. The summary of the finding to IFM treatment and possible means of further improvements were also listed.展开更多
分别以综合法、高温高压法、酸水解法制取的羽毛粉Ⅰ、Ⅱ、Ⅲ及秘鲁鱼粉作动物蛋白,配制4种试验饲料,用白鲫(Carassium Cuvieri T. ets.)进行蛋白质消化率对比试验。结果表明:白鲫对羽毛粉Ⅰ、Ⅱ、Ⅲ及鱼粉中蛋白质的消化率分别为(%)71....分别以综合法、高温高压法、酸水解法制取的羽毛粉Ⅰ、Ⅱ、Ⅲ及秘鲁鱼粉作动物蛋白,配制4种试验饲料,用白鲫(Carassium Cuvieri T. ets.)进行蛋白质消化率对比试验。结果表明:白鲫对羽毛粉Ⅰ、Ⅱ、Ⅲ及鱼粉中蛋白质的消化率分别为(%)71.36 35.64、73.14、63.49;对羽毛粉Ⅰ、Ⅲ的消化率显著高于羽毛粉Ⅱ和鱼粉。展开更多
基金Supported by Harbin Applied Technology Research and Development Project(2016RAXXJ015)。
文摘This study aimed to investigate the effects of fermented puffed feather meal(FPFM)on growth performance,serum biochemical indices,meat quality,and intestinal microbiota in Arbor Acres(AA)broilers.A single-factor design was adopted,and four treatments were administered with five replicates to 240 one-day-old AA broilers.The control group(group A)received a basal diet,while the experimental groups received a basal diet plus 33%(group B),67%(group C)and 100%(group D)FPFM,respectively.Compared with group A,(1)the average daily gain(ADG)in group C decreased(P<0.05),and the feed conversion ratio(FCR)in group D increased(P<0.05);(2)the level of serum urea nitrogen in treatment groups decreased(P<0.05),and the levels of triglyceride,high density lipoprotein,low density lipoprotein,cholesterol,and glucose contents in group D increased(P<0.05)at day 21;(3)the serum immunoglobulin M and immunoglobulin G in group B and the immunoglobulin A in group C increased(P<0.05)at day 21,and the serum immunoglobulin M and immunoglobulin G in group D decreased(P<0.05)at day 42;(4)the share force of breast muscle and thigh muscle in group D increased(P<0.05);(5)the villus height to crypt depth ratio in the jejunum of group B increased(P<0.05)at day 21,and the villus height in group C and D increased(P<0.05)at day 42;(6)the proteobacteria counts in the cecum digesta in treatment groups decreased(P<0.05)at day 21.The basal diet supplemented with 33%FPFM promoted protein metabolism,enhanced immunity and improved meat quality,promoted the digestion and absorption of nutrients,increased intestinal microbial diversity,and improved the content of beneficial bacteria without affecting the growth performance,it was possible to be used as a good substitute for fish meal.
文摘A two-step biotechnological process was developed using Bacillus licheniformis S6 to provide a simple and economical procedure which significantly improved feather meal nutrition value. Compared with IFM (initial feather meal) and CFM (commercial feather meal), SFEFM (feather meal gained by solid fermentation and enzymolysis with continuous agitation) had a significant improvement (P〈0.05) in vitro digestibility, contents of oligopeptides and soluble protein released in digestive juice by pepsin- pancreatin digestion procedure, furthermore, some deficient essential amino acids in feather protein (histidine, methionine, lysine) were enhanced. Comapared with CFM, the oligopeptides released into digestive juice of ISFM (feather meal obtained by the biotechnological process described in the paper with intermittent shaking) was significantly enhanced (P〈O.05), and its in vitro digestibility was statistically (P〉0.05) equivalent to CFM. The summary of the finding to IFM treatment and possible means of further improvements were also listed.
文摘分别以综合法、高温高压法、酸水解法制取的羽毛粉Ⅰ、Ⅱ、Ⅲ及秘鲁鱼粉作动物蛋白,配制4种试验饲料,用白鲫(Carassium Cuvieri T. ets.)进行蛋白质消化率对比试验。结果表明:白鲫对羽毛粉Ⅰ、Ⅱ、Ⅲ及鱼粉中蛋白质的消化率分别为(%)71.36 35.64、73.14、63.49;对羽毛粉Ⅰ、Ⅲ的消化率显著高于羽毛粉Ⅱ和鱼粉。