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检索条件"任意字段=低碳经济与高效养殖——第六次全国饲料营养学术研讨会暨动物营养学分会成立三十周年大会"

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Effects of physically effective fiber on chewing activity,ruminal fermentation,and digestibility in goats

Effects of physically effective fiber on chewing activity,ru...

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低碳经济与高效养殖——第六次全国饲料营养学术研讨会暨动物营养学分会成立三十周年大会

作者： X.H.Zhao,T.Zhang,M.Xu,J.H.YAO~* (Northwest A&F University,Yangling Shaanxi,China,712100)

The objective of this study was to evaluate the effects of physically effective neutral detergent fiber(peNDF) content of goat diets containing alfalfa hay as the sole forage source on feed intake,chewing activity,ruminal fermentation,and nutrient *** rumen fistulated goats were fed different proportions of chopped and ground alfalfa hay in a 4×4 Latin square *** were chemically similar but varied in peNDF content;low<正>The objective of this study was to evaluate the effects of physically effective neutral detergent fiber(peNDF) content of goat diets containing alfalfa hay as the sole forage source on feed intake,chewing activity,ruminal fermentation,and nutrient *** rumen fistulated goats were fed different proportions of chopped and ground alfalfa hay in a 4×4 Latin square *** were chemically similar but varied in peNDF content;low

关键词： chewing digestibility goat physically effective NDF rumen pH

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Effects of copper,iron,zinc and manganese supplementation in a maize-soybean meal diet on the growth performance,meat quality and immune responses of broiler chickens

Effects of copper,iron,zinc and manganese supplementation in...

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低碳经济与高效养殖——第六次全国饲料营养学术研讨会暨动物营养学分会成立三十周年大会

作者： YANG Xiaojun~1,SUN Xiangxiao~1,LI Chaoyun~1,YAO Junhu~(1*),LIU Yurui~2 (1 Northwest A&F University,Shaanxi,Yangling,712100,China 2 Shenzhen Kondarl(Gaoling) Feed Co Ltd, Gaoling,Shaanxi,710200)

This experiment was conducted to evaluate the effects of additional supplementation of the diet with copper (Cu),iron(Fe),zinc(Zn) and manganese(Mn) on performance,meat quality and immune responses of broiler chickens fed a maize-soybean meal based *** determined contents of Cu,Fe,Zn and Mn in the basal diet for the starter(1 to 21 days old) were 12.2,185.7,15.8 and 29.4 mg/kg diet,and for the finisher(22 to 42 days old)<正>This experiment was conducted to evaluate the effects of additional supplementation of the diet with copper (Cu),iron(Fe),zinc(Zn) and manganese(Mn) on performance,meat quality and immune responses of broiler chickens fed a maize-soybean meal based *** determined contents of Cu,Fe,Zn and Mn in the basal diet for the starter(1 to 21 days old) were 12.2,185.7,15.8 and 29.4 mg/kg diet,and for the finisher(22 to 42 days old)

关键词： broiler chickens minerals performance immune responses meat quality

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Dietary oils modulate T-cell differentiation and IL-2 bioactivity of intestinal mucosal lymphocytes in chickens

Dietary oils modulate T-cell differentiation and IL-2 bioact...

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低碳经济与高效养殖——第六次全国饲料营养学术研讨会暨动物营养学分会成立三十周年大会

作者： Xiaojun Yang~(1,2),Junhu Yao~1,Xi He~3,Ying Yang~2,Binkun Zhang~2, Jianmin Yuan~2,Yuming Guo~(2*) (1 Department of Animal Nutrition & Feed Science,College of Animal Science & Technology,Northwest A&F University,YangLing, 712100,P.R.China 2 State Key Laboratory of Animal Nutrition,Beijing,100094,P.R.China 3 Department of Animal Nutrition & Feed Science,College of Animal Science & Technology,Hunan Agricultural University,Changsha,100094,P.R.China)

Intestinal intraepithelial lymphocytes(IELs)and their cytokines play an important role in the regulation of gut immune response and take part in gut immune barrier function.n-3 polyunsaturated fatty acid(PUFA)is an immunoregulator that has been shown to influence the process of gut *** study was conducted to<正>Intestinal intraepithelial lymphocytes(IELs)and their cytokines play an important role in the regulation of gut immune response and take part in gut immune barrier function.n-3 polyunsaturated fatty acid(PUFA)is an immunoregulator that has been shown to influence the process of gut *** study was conducted to

关键词： dietary oil IMLs CD cGRP cAMP chickens

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Effects of probiotic on Performance and Blood biochemical index of growing pigs

Effects of probiotic on Performance and Blood biochemical in...

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低碳经济与高效养殖——第六次全国饲料营养学术研讨会暨动物营养学分会成立三十周年大会

作者： Huang Xing-guo~1,Luo Bin~1,Wen Li-xin~2,Jiang Zheng-yun~2,Hu Guo-liang~3,Li Yong~3 (1 College of Animal Science & Technology,Hunan Agricult ure University,Changsha 410128,China 2 Changsha Lv-Ye an Biology Technology Company,LTD,Changsha 410125,China 3 Wang Ling Prison Industrial Pig Farm of Hunan Province,Zhuzhou 412307,China)

In order to investigate the effect of probiotic on growth performance,nutrient digestibility and blood biochemistry index,a total 144 of growing pigs(Landracee×Yorkshire)with average weight about 40kg were randomly assigned to 4 groups with 3 replicates per treatment and 1 2 pigs per *** basal diet was fed<正>In order to investigate the effect of probiotic on growth performance,nutrient digestibility and blood biochemistry index,a total 144 of growing pigs(Landracee×Yorkshire)with average weight about 40kg were randomly assigned to 4 groups with 3 replicates per treatment and 1 2 pigs per *** basal diet was fed

关键词： probiotic gowing piglets growth performance blood biochemistry index

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Effects of rumen-protected tryptophan on growth performance,fibre characteristics,nutrient utilization and plasma essential amino acids in Cashmere goats during the Cashmere slow growth period

Effects of rumen-protected tryptophan on growth performance,...

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低碳经济与高效养殖——第六次全国饲料营养学术研讨会暨动物营养学分会成立三十周年大会

作者： Hui Ma~a,Wei Zhang~a,Xiaoping Zhu~a,Weihong Song~b,Jun Liu~c,Zhihai Jia~(a,*) a College of Animal Science and Technology,China Agricultural University,Beijing 100193,P.R.China b Department of Science and Research of Hei longjiang Academy of Land-reclamation Sciences,Jiamusi 154007,P.R.China c The College of Animal Science and Technology of Hei longjiang August First Land-Reclamation University, Daqing 163319,P.R.China * Corresponding Author.Present address:College of Animal Science and Technology,China Agricultural University,Beijing 100193,P.R.China.

Tryptophan(Trp) is a limiting amino acid in growing ruminants and supplementation of Trp in a rumen-protected form may be positive effects on performance in *** may affect cashmere fibre growth by regulating plasma melatonin *** December to February,identified as the cashmere slow growth period,cashmere growth rate slows down and plasma melatonin secretion ***,Trp supplementation may affect cashmere fibre growth positively during this period.<正>Tryptophan(Trp) is a limiting amino acid in growing ruminants and supplementation of Trp in a rumen-protected form may be positive effects on performance in *** may affect cashmere fibre growth by regulating plasma melatonin *** December to February,identified as the cashmere slow growth period,cashmere growth rate slows down and plasma melatonin secretion ***,Trp supplementation may affect cashmere fibre growth positively during this period.

关键词： rumen-protected tryptophan growth performance fibre characteristics nutrient utilization plasma essential amino acids Cashmere goats

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Effect of dietary starch on rumen and small intestine morphology and digesta pH in goats

Effect of dietary starch on rumen and small intestine morpho...

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低碳经济与高效养殖——第六次全国饲料营养学术研讨会暨动物营养学分会成立三十周年大会

作者： Y.H.Wang~(1,2),M.Xu~1,F.N.Wang~1,Z.P.Yu~1,J.H.Yao~(1*),L.S.Zan~1,F.X.Yang~1 (1 Northwest A&F University,Shaanxi,Yangling,712100,PRC 2 Xuzhou Normal University,Xuzhou,221116,PRC)

The objective of this study was to determine the effects of dietary starch level on rumen and small intestine morphology and digesta pH in *** 9 months old Guanzhong wether goats(body weight 28.5±1.6 kg) were randomly assigned to three treatments of dietary starch levels,(1)low starch(LS,28%),(2) medium starch(MS,35%) and(3) high starch(HS,46%).After a 35-day experiment,MS diet significantly stimulated the<正>The objective of this study was to determine the effects of dietary starch level on rumen and small intestine morphology and digesta pH in *** 9 months old Guanzhong wether goats(body weight 28.5±1.6 kg) were randomly assigned to three treatments of dietary starch levels,(1)low starch(LS,28%),(2) medium starch(MS,35%) and(3) high starch(HS,46%).After a 35-day experiment,MS diet significantly stimulated the

关键词： starch ruminal morphology small intestine morphology pH

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Effect of corn particle size on mucosal morphology and digesta pH of the gastrointestinal tract in growing goats

Effect of corn particle size on mucosal morphology and diges...

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低碳经济与高效养殖——第六次全国饲料营养学术研讨会暨动物营养学分会成立三十周年大会

作者： M.Xu~a,Y.Dong~b,S.Du~a,Y.S.Hao~c,Y.H.Wang~d,F.N.Wang~a,J.H.Yao~(a*) (a Northwest A&F University,Shaanxi,Yangling 712100,PRC b Yangling Vocational and Technical College,Shaanxi, Yangling 712100,PRC c Hebei Agriculture University,Hebei,Dingzhou,073000,PRC d Xuzhou Normal University, Jiangsu,Xuzhou 221116,PRC)

A slaughter experiment was conducted to determine the effect of corn particle size on mucosal morphology and digesta pH in the gastrointestinal tract of *** Guanzhong wether goats aged 9 months(23.5±0.3 kg) were randomly fed diets containing 55%corn silage and 28%finely cracked,coarsely cracked or whole corn. After a 35 d feeding period,goats were slaughtered to obtain digesta samples for pH determination,and<正>A slaughter experiment was conducted to determine the effect of corn particle size on mucosal morphology and digesta pH in the gastrointestinal tract of *** Guanzhong wether goats aged 9 months(23.5±0.3 kg) were randomly fed diets containing 55%corn silage and 28%finely cracked,coarsely cracked or whole corn. After a 35 d feeding period,goats were slaughtered to obtain digesta samples for pH determination,and

关键词： corn particle size mucosal morphology digesta pH goat

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Effects of different supplemental levels of vitamin D in diets on β-defensins in Taihe silky fowl

Effects of different supplemental levels of vitamin D in die...

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低碳经济与高效养殖——第六次全国饲料营养学术研讨会暨动物营养学分会成立三十周年大会

作者： LI Siming~(1,2),OUYANG Linghua~1,ZHOU Dinggang~2,WEI Qipeng~1 (1.Institute of Animal Husbandry and Veterinary,Jiangxi Academy of Agricultural Sciences,Nanchang 330200,China 2.Department of Animal Science and Technology,Sichuan Agricultural University,Ya'an 625014,China)

The expression of AVBDs,TLRs and vitamin D hydroxylase associated protein（VDHA） was studied following in vivo by feeding vitamin *** Silky Fowl were fed vitamin D of 0,800,1600,3200 and 6400 IU/kg feed from 1 to ***-time PCR analyses reveal that feeding of vitamin D showed significantly changed the expression of AVBDs（AVBD 1,AVBD 5,AVBD 7,AVBD 9,AVBD 10 and AVBD 12） in the thymus, duodenum,jejunum,ileum,cecum and bursa of Fabricius during different dose from 800 to 6400 IU,similarly the expression of TLRs（TLR2,TLR5）,VDHA and AVBDs（AVBD-6,GAL-1） in the tissues（liver,spleen and kidney）. These results suggest that expression of VDHA,AVBDs and TLRs were induced by vitamin D and the genes expression levels existed a dose-dependent in same tissues of birds with fed VD of different dose,and the appropriate dose of VD can directly up-regulate the gene expression ofβ-defensins in the tissues.<正>The expression of AVBDs,TLRs and vitamin D hydroxylase associated protein（VDHA） was studied following in vivo by feeding vitamin *** Silky Fowl were fed vitamin D of 0,800,1600,3200 and 6400 IU/kg feed from 1 to ***-time PCR analyses reveal that feeding of vitamin D showed significantly changed the expression of AVBDs（AVBD 1,AVBD 5,AVBD 7,AVBD 9,AVBD 10 and AVBD 12） in the thymus, duodenum,jejunum,ileum,cecum and bursa of Fabricius during different dose from 800 to 6400 IU,similarly the expression of TLRs（TLR2,TLR5）,VDHA and AVBDs（AVBD-6,GAL-1） in the tissues（liver,spleen and kidney）. These results suggest that expression of VDHA,AVBDs and TLRs were induced by vitamin D and the genes expression levels existed a dose-dependent in same tissues of birds with fed VD of different dose,and the appropriate dose of VD can directly up-regulate the gene expression ofβ-defensins in the tissues.

关键词： chicken vitamin D3 regulation β-defensins

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