[Objective]The paper was to study the effects of fermentation bed padding on intestinal flora,serum biochemical indexes and immune function of growing-finishing pigs.[Method]A total of 90 growing-finishing pigs(Duroc ...[Objective]The paper was to study the effects of fermentation bed padding on intestinal flora,serum biochemical indexes and immune function of growing-finishing pigs.[Method]A total of 90 growing-finishing pigs(Duroc × Landrace × Yorkshire)with the body weight of(30.5±0.8)kg were randomly divided into five groups,three replicates each group,six pigs each replicate.The padding of five groups were:50%rice husk+50%sawdust(control group),100%spent mushroom substrate of Pleurotus eryngii(100%spent mushroom substrate group),15%rice husk+15%sawdust+70%spent mushroom substrate(70%spent mushroom substrate group),25%rice husk+25%sawdust+50%spent mushroom substrate(50%spent mushroom substrate group),35%rice husk+35%sawdust+30%spent mushroom substrate(30%spent mushroom substrate group).The pre-trial lasted 7 d,and the formal trial lasted 90 d.[Result]Compared with the control group,the number of Escherichia col in 100%,70%and 50%spent mushroom substrate groups decreased by 35.4%,24.0%and 20.8%,respectively(P<0.05);the number of salmonella successively decreased by 29.4%,19.3%and 15.2%,respectively(P<0.05);the number of lactobacillus successively increased by 21.7%,15.9%and 12.2%,respectively(P<0.05);and the number of bifidobacteria successively increased by 20.2%,16.7%and 11.8%,respectively(P<0.05).Compared with the control group,the total serum protein content in 100%,70%,50%and 30%spent mushroom substrate groups increased by 30.6%,33.0%,28.0%and 18.4%,respectively(P<0.05);and the serum urea nitrogen content decreased by 32.4%,34.5%,33.9%and 22.0%,respectively(P<0.05).There was no significant difference in serum albumin,aspartate aminotransferase(AST)and alanine aminotransferase(ALT)between treatment groups and control group.The IgA,IgG,IgM and IL-6 levels in serum of each treatment group were significantly different from those of the control group(P<0.05).There was no significant difference in IgA,IgG,IgM and IL-6 levels among 100%,70%and 50%spent mushroom substrate groups.[Conclusion]It improves the balance of intestinal microecological flora of growing-finishing pigs and enhances the immune performance of pigs by using spent mushroom substrate of P.eryngii as the fermentation bed padding.15%rice husk+15%sawdust+70%spent mushroom substrate is the optimal proportion of spent mushroom substrate for growing-finishing pigs.展开更多
[Objective] The paper was to examine the effects of spent mushroom substrate of Pleurotus eryngii as fermentation bed padding on growth performance, intestinal microflora and immunity of weaning pigs. [Method] A total...[Objective] The paper was to examine the effects of spent mushroom substrate of Pleurotus eryngii as fermentation bed padding on growth performance, intestinal microflora and immunity of weaning pigs. [Method] A total of 120 weaning piglets （DurocxLandracexYorkshire） with the average initial body weight of （8.0±0.5） kg were allocated to five dietary treatments in a randomized complete block design for 42 d, each of which was replicated three times with eight piglets per replicate （ half male and half female）. The padding for control group was 50% sawdust ＋50% rice husk; experimental group I, 100% spent mushroom substrate; experimental group II, 15% sawdust ＋15% rice husk ＋70% spent mushroom sub- strate; experimental group III, 25% sawdust ＋25% rice husk ＋50% spent mushroom substrate; and experimental group IV, 35% sawdust ＋35% rice husk ＋30% spent substrate. [Result] Except for experimental group IV, the other three experimental groups had higher average daily gain compared to the control group （P〈0.05）. The average daily feed intake in experimental group I increased obviously compared to the control group（P〈0.05）. Except for experimental group I, the diarrhea rate of weaning piglets in experimental groups II, III and IV significantly decreased compared to the control group（P〈0.05）. The number of lactobacilli and bifidobacteria in colon and cecum in experimental groups I, II and III increased distinctly （P〈 0.05）, while the number of Escherichia coli and Salmonella decreased remarkably compared to the control group （P〈0.05）. The positive rates of T and B lymphocytes in peripheral blood of weaning piglets in four experimental groups were significantly higher than that in control group at 21 and 42 d post weaning （P〈0.05）. The IgA content of intestinal mucous in piglets was significantly improved in experimental groups II and III （P〈0.05）. [Conclusion] It enhances the production performance when improving immunity and reducing diarrhea rate of piglets by using spent mushroom substrate of P. eryngii as the fermentation bed padding. Experimental group III （25% sawdust ＋25% rice husk ＋50% spent mushroom substrate） is the optimal proportion of spent mushroom substrate.展开更多
[Objective] The paper was to investigate effects on fermentation bed temperature,growth performance,diarrhea rate and digestive en-zyme activity of weaning piglets by using spent mushroom substrate of Pleurotus eryngi...[Objective] The paper was to investigate effects on fermentation bed temperature,growth performance,diarrhea rate and digestive en-zyme activity of weaning piglets by using spent mushroom substrate of Pleurotus eryngii as padding.[Method] A total of 120 weaning piglets（Duroc × Landrace ×Yorkshire） with average initial body weight of（8.0 ±0.5）kg were allocated to five dietary treatments in a randomized complete block design for 42 d,each of which was replicated three times with eight piglets per replicate（half male,half female）.The padding for control group was（50% sawdust ＋50% rice husk）;experimental group Ⅰ 100% spent mushroom substrate;experimental group Ⅱ（15% sawdust ＋15% rice husk ＋70% spent mushroom substrate）;experimental group Ⅲ（25% sawdust ＋25% rice husk ＋50% spent mushroom substrate）;experimental group Ⅳ（35% sawdust ＋35% rice husk ＋30% spent substrate）.[Result] There was no significant difference in surface temperature of fermentation bed between experimental groups and control group（P〉0.05）.Compared with the control group,the temperature under 20 cm of fermentation bed in ex-perimental groups I,Ⅱ and Ⅲ increased significantly（P〈0.05）.Except for experimental group Ⅳ,other three experimental groups had higher aver-age daily gain（P〈0.05） and experimental group Ⅰ had higher average daily feed intake（P〈0.05） compared to the control group.The diarrhea rate and mortality of weaning piglets in experimental groups Ⅱ,Ⅲ and Ⅳ were significantly decreased compared with the control group（P〈0.05）.Compared with the control group,other three experimental groups had higher digestive enzyme activity in duodenal contents except for experimental group Ⅳ（P〈0.05）.[Conclusion] Spent mushroom substrate of P.eryngii can be used as fermentation bed padding,and the optimal proportion was experimental group Ⅲ.展开更多
基金Supported by Animal Medicine Specialized Group Program of Beijing Characteristic High Level Backbone Specialized Group Project(PXM2020-157102-000060)General Project of Science and Technology Plan of Beijing Municipal Education Commission(KM201512448004)+1 种基金Scientific and Technological Capacity Enhancement Project of"Vegetable Basket"New Production and Business Entity of Beijing Municipal Agricultural Commission(20150203-5)Doctoral Fund of Beijing Vocational College of Agriculture(XY-BS-15-01).
文摘[Objective]The paper was to study the effects of fermentation bed padding on intestinal flora,serum biochemical indexes and immune function of growing-finishing pigs.[Method]A total of 90 growing-finishing pigs(Duroc × Landrace × Yorkshire)with the body weight of(30.5±0.8)kg were randomly divided into five groups,three replicates each group,six pigs each replicate.The padding of five groups were:50%rice husk+50%sawdust(control group),100%spent mushroom substrate of Pleurotus eryngii(100%spent mushroom substrate group),15%rice husk+15%sawdust+70%spent mushroom substrate(70%spent mushroom substrate group),25%rice husk+25%sawdust+50%spent mushroom substrate(50%spent mushroom substrate group),35%rice husk+35%sawdust+30%spent mushroom substrate(30%spent mushroom substrate group).The pre-trial lasted 7 d,and the formal trial lasted 90 d.[Result]Compared with the control group,the number of Escherichia col in 100%,70%and 50%spent mushroom substrate groups decreased by 35.4%,24.0%and 20.8%,respectively(P<0.05);the number of salmonella successively decreased by 29.4%,19.3%and 15.2%,respectively(P<0.05);the number of lactobacillus successively increased by 21.7%,15.9%and 12.2%,respectively(P<0.05);and the number of bifidobacteria successively increased by 20.2%,16.7%and 11.8%,respectively(P<0.05).Compared with the control group,the total serum protein content in 100%,70%,50%and 30%spent mushroom substrate groups increased by 30.6%,33.0%,28.0%and 18.4%,respectively(P<0.05);and the serum urea nitrogen content decreased by 32.4%,34.5%,33.9%and 22.0%,respectively(P<0.05).There was no significant difference in serum albumin,aspartate aminotransferase(AST)and alanine aminotransferase(ALT)between treatment groups and control group.The IgA,IgG,IgM and IL-6 levels in serum of each treatment group were significantly different from those of the control group(P<0.05).There was no significant difference in IgA,IgG,IgM and IL-6 levels among 100%,70%and 50%spent mushroom substrate groups.[Conclusion]It improves the balance of intestinal microecological flora of growing-finishing pigs and enhances the immune performance of pigs by using spent mushroom substrate of P.eryngii as the fermentation bed padding.15%rice husk+15%sawdust+70%spent mushroom substrate is the optimal proportion of spent mushroom substrate for growing-finishing pigs.
基金Supported by General Program of Science and Technology Plan of Beijing Municipal Education Com-mission(KM201512448004)Project of Beijing Municipal Education Commission Promotion of Sci-entific and Technological Capacity of ‘Vegetable Basket’ New Production and Operation Subject”(20150203-5)Doctoral Fund of Beijing Vocational College of Agriculture(XY-BS-15-01)
文摘[Objective] The paper was to examine the effects of spent mushroom substrate of Pleurotus eryngii as fermentation bed padding on growth performance, intestinal microflora and immunity of weaning pigs. [Method] A total of 120 weaning piglets （DurocxLandracexYorkshire） with the average initial body weight of （8.0±0.5） kg were allocated to five dietary treatments in a randomized complete block design for 42 d, each of which was replicated three times with eight piglets per replicate （ half male and half female）. The padding for control group was 50% sawdust ＋50% rice husk; experimental group I, 100% spent mushroom substrate; experimental group II, 15% sawdust ＋15% rice husk ＋70% spent mushroom sub- strate; experimental group III, 25% sawdust ＋25% rice husk ＋50% spent mushroom substrate; and experimental group IV, 35% sawdust ＋35% rice husk ＋30% spent substrate. [Result] Except for experimental group IV, the other three experimental groups had higher average daily gain compared to the control group （P〈0.05）. The average daily feed intake in experimental group I increased obviously compared to the control group（P〈0.05）. Except for experimental group I, the diarrhea rate of weaning piglets in experimental groups II, III and IV significantly decreased compared to the control group（P〈0.05）. The number of lactobacilli and bifidobacteria in colon and cecum in experimental groups I, II and III increased distinctly （P〈 0.05）, while the number of Escherichia coli and Salmonella decreased remarkably compared to the control group （P〈0.05）. The positive rates of T and B lymphocytes in peripheral blood of weaning piglets in four experimental groups were significantly higher than that in control group at 21 and 42 d post weaning （P〈0.05）. The IgA content of intestinal mucous in piglets was significantly improved in experimental groups II and III （P〈0.05）. [Conclusion] It enhances the production performance when improving immunity and reducing diarrhea rate of piglets by using spent mushroom substrate of P. eryngii as the fermentation bed padding. Experimental group III （25% sawdust ＋25% rice husk ＋50% spent mushroom substrate） is the optimal proportion of spent mushroom substrate.
基金Supported by General Program of Science and Technology Plan of Beijing Municipal Education Commission(KM201512448004)Project of Beijing Municipal Education Commission "Promotion of Scientific and Technological Capacity of ‘Vegetable Basket’ New Production and Operation Subject"(20150203-5)Doctoral Fund of Beijing Vocational College of Agriculture(XY-BS-15-01)
文摘[Objective] The paper was to investigate effects on fermentation bed temperature,growth performance,diarrhea rate and digestive en-zyme activity of weaning piglets by using spent mushroom substrate of Pleurotus eryngii as padding.[Method] A total of 120 weaning piglets（Duroc × Landrace ×Yorkshire） with average initial body weight of（8.0 ±0.5）kg were allocated to five dietary treatments in a randomized complete block design for 42 d,each of which was replicated three times with eight piglets per replicate（half male,half female）.The padding for control group was（50% sawdust ＋50% rice husk）;experimental group Ⅰ 100% spent mushroom substrate;experimental group Ⅱ（15% sawdust ＋15% rice husk ＋70% spent mushroom substrate）;experimental group Ⅲ（25% sawdust ＋25% rice husk ＋50% spent mushroom substrate）;experimental group Ⅳ（35% sawdust ＋35% rice husk ＋30% spent substrate）.[Result] There was no significant difference in surface temperature of fermentation bed between experimental groups and control group（P〉0.05）.Compared with the control group,the temperature under 20 cm of fermentation bed in ex-perimental groups I,Ⅱ and Ⅲ increased significantly（P〈0.05）.Except for experimental group Ⅳ,other three experimental groups had higher aver-age daily gain（P〈0.05） and experimental group Ⅰ had higher average daily feed intake（P〈0.05） compared to the control group.The diarrhea rate and mortality of weaning piglets in experimental groups Ⅱ,Ⅲ and Ⅳ were significantly decreased compared with the control group（P〈0.05）.Compared with the control group,other three experimental groups had higher digestive enzyme activity in duodenal contents except for experimental group Ⅳ（P〈0.05）.[Conclusion] Spent mushroom substrate of P.eryngii can be used as fermentation bed padding,and the optimal proportion was experimental group Ⅲ.
