检索结果-南通市图书馆

Dietary fibre effects and the interplay with exogenous carbohydrases in poultry nutrition

Animal Nutrition 2024年第1期16卷 231-240页

作者： Michael R.Bedford Birger Svihus Aaron J.Cowieson AB Vista feed Ingredients Ltd Norwegian University of Life Sciences DSM Nutritional Products

A comprehensive understanding of the role of dietary fibre in non-ruminant animal production is elusive. Equivocal and conflated definitions of fibre coupled with significant analytical complexity,interact with poorly defined host and microbiome relationships. Dietary fibre is known to influence gut development, feed intake and passage rate, nutrient absorption, microbiome taxonomy and function, gut p H, endogenous nutrient loss, environmental sustainability, animal welfare and more. Whilst significant gaps persist in our understanding of fibre in non-ruminant animal production, there is substantial interest in optimizing the fibre fraction of feed to induce high value phenotypes such as improved welfare,live performance and to reduce the environmental footprint of animal production systems. In order to achieve these aspirational goals, it is important to tackle dietary fibre with the same level of scrutiny as is currently done for other critical nutrient classes such as protein, minerals and vitamins. The chemical,mechanical and nutritional role of fibre must be explored at the level of monomeric sugars, oligosaccharides and polysaccharides of varying molecular weight and decoration, and this must be in parallel to standardisation of analytical tools and definitions for speciation. To further complicate subject, exogenous carbohydrases recognise dietary fibre as a focal substrate and have varying capacity to generate lower molecular weight carbohydrates that interact differentially with the host and the enteric microbiome. This short review article will explore the interactive space between dietary fibre and exogenous carbohydrases and will include their nutritional and health effects with emphasis on functional development of the gut, microbiome modulation and host metabolism.

关键词： Fibre Carbohydrase Nutrition Microbiome Gastro-intestinal development feed

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Invited review:Remediation strategies for mycotoxin control in feed

引用

Journal of Animal Science and Biotechnology 2022年第4期13卷 935-950页

作者： Meng Liu Ling Zhao Guoxin Gong Lei Zhang Lei Shi Jiefan Dai Yanming Han Yuanyuan Wu Mahmoud Mohamed Khalil Lvhui Sun Hubei Hongshan Laboratory College of Animal Science and TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina Department of Agriculture of Sichuan Province Chengdu 610041China Trouw Nutrition AmersfoortThe Netherlands Animal Production Department Faculty of AgricultureBenha UniversityBanha 13736Egypt.

Mycotoxins are secondary metabolites of different species of fungi.Aflatoxin B1(AFB1),deoxynivalenol(DON),zearalenone(ZEN)and fumonisin B1(FB1)are the main mycotoxins contaminating animal feedstuffs.These mycotoxins can primarily induce hepatotoxicity,immunotoxicity,neurotoxicity and nephrotoxicity,consequently cause adverse effects on the health and performance of animals.Therefore,physical,chemical,biological and nutritional regulation approaches have been developed as primary strategies for the decontamination and detoxification of these mycotoxins in the feed industry.Meanwhile,each of these techniques has its drawbacks,including inefficient,costly,or impractically applied on large scale.This review summarized the advantages and disadvantages of the different remediation strategies,as well as updates of the research progress of these strategies for AFB1,DON,ZEN and FB1 control in the feed industry.

关键词： Animal health feed Mycotoxin Performance Remediation strategies

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Methodologies for energy evaluation of pig and poultry feeds:A review

引用

Animal Nutrition 2022年第1期8卷 185-203页

作者： Jean Noblet Shu-Biao Wu Mingan Choct INRAE UMR 1348 PEGASE35590 St-GillesFrance School of Environmental and Rural Science University of New EnglandArmidaleNSW 2351Australia

The cost of feed represents an important part of the total cost in swine and poultry production(>60%)with energy accounting for at least 70%of feed cost.The energy value of ingredients or compound feeds can be estimated as digestible(DE),metabolisable(ME)and net energy(NE)in pigs and ME and NE in poultry.The current paper reviews the different methods for evaluating DE,ME and NE of feeds for monogastric animals and their difficulties and limits,with a focus on NE.In pigs and poultry,energy digestibility depends on the chemical characteristics of the feed,but also on technology(pelleting,for instance)and animal factors such as their health and body weight.The ME value includes the energy losses in urine that are directly dependent on the proportion of dietary N excreted in urine resulting in the concept of ME adjusted for a zero N balance(MEn)in poultry.For poultry,the concept of true ME(TME,TMEn),which excludes the endogenous fecal and urinary energy losses from the excreta energy,was also developed.The measurement of dietary NE is more complex,and NE values of a given feed depend on the animal and environmental factors and also measurement and calculation methods.The combination of NE values of diets obtained under standardised conditions allows calculating NE prediction equations that are applicable to both ingredients and compound feeds.The abundance of energy concepts,especially for poultry,and the numerous feed and animal factors of variation related to energy digestibility or ME utilisation for NE suggest that attention must be paid to the experimental conditions for evaluating DE,ME or NE content.This also suggests the necessity of standardisations,one of them being,as implemented in pigs,an adjustment of ME values in poultry for an N retention representative of modern production conditions(MEs).In conclusion,this review illustrates that,in addition to numerous technical difficulties for evaluating energy in pigs and poultry,the absolute energy values depend on feed and animal factors,the environment,and t

关键词： Pig Poultry feed Energy value Methodology

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Analysis of feed pelleting characteristics based on a single pellet press device

引用

International Journal of Agricultural and Biological Engineering 2022年第4期15卷 65-70页

作者： Fei Peng Rui Xiang Fang Fang Dan Liu School of Artificial Intelligence Beijing Technology and Business UniversityBeijing 100048China College of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China Key Laboratory of Environment Controlled Aquaculture Ministry of EducationDalian Ocean UniversityDalian 116023China

Pelleting is the most extensively used thermal processing method in feed industry.In this article,a single pellet press device was developed to investigate the pelleting processing of animal feed.Effects of moisture content(10%-18%w.b.),preheating temperature(60°C-100°C)and maximum compression force(0.2-0.6 kN)on feed pellet were determined and analyzed,as well as energy consumption.The results showed that unit density,pellet hardness and energy consumption were 0.87-2.92 g/cm3,1.08-4.55 kg,and 3.27-12.66 J/g,respectively.Unit density was found to increase with the increase of preheating temperature and maximum compression force,but decrease with the increase of moisture content.Pellet hardness showed a first ascending then descending trend with the increase of moisture content,but exhibited a positive relationship with both preheating temperature and maximum compression force.Energy consumption increased with the increase of maximum compression force,but exhibited descending trends with the increase of moisture content and preheating temperature.Due to its features of low cost,high efficiency and easy control,the single pellet press device has a wide application prospect in feed processing.

关键词： feed pelleting energy consumption preheating temperature experiments

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Insects as a feed ingredient for fish culture: Status and trends

引用

Aquaculture and Fisheries 2022年第2期7卷 166-178页

作者： Yuzer Alfiko Dizhi Xie Retno Tri Astuti Joey Wong Le Wang Biotechnology Research and Development Division Seed Wilmar Indonesia LtdCikarangBekasi17530Indonesia College of Marine Sciences South China Agricultural UniversityGuangzhou510642China Department of Fishery Product Technology Faculty of Fisheries and Marine ScienceBrawijaya UniversityEast Java65145Indonesia School of Biological Sciences Nanyang Technological University60 Nanyang Drive637551Singapore Temasek Life Sciences Lab 1 Research LinkNational University of Singapore117604Singapore

Fish culture plays an important role in supplying high-quality proteins and omega-3(n-3)long-chain polyunsaturated fatty acids.Aquaculture has been the fastest growing sector in agriculture.Fishmeal is an important component of commercial fish feeds,but ensuring a sustainable supply of fishmeal is in question.A good source of proteins in aquafeeds is insects.For the past 20 years,investigations have been carried out on insect meals as alternative sources for fishmeal.Thus far,the results on replacing fishmeal in feeding aquaculture species have been promising.However,some challenging issues including costs and scaling up of insect production remains.In this review,we aim to summarize the status of applying meals of eight insect species in formulated aquafeeds.We also discussed issues in replacing fishmeal in fish feeds with insect meals and listed some future research directions to make insect meals an important source of proteins for green,profitable and sustainable(GPS)aquaculture.It is certain that in the near future,large-scale insect farming and processing to produce insect meals as an ingredient of fish feeds will have positive impact on the sustainability and profitability of aquaculture.

关键词： Fish feed fly Worm Performance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Current status of greenhouse gas emissions from aquaculture in China

引用

Water Biology and Security 2022年第3期1卷 10-17页

作者： Congjun Xu Guohuan Su Kangshun Zhao Xiaoqi Xu Ziqi Li Qiang Hu Ying Xue Jun Xu Institute of Hydrobiology Chinese Academy of SciencesWuhan430072China University of Chinese Academy of Sciences Beijing100049China Center for Advanced Systems Understanding(CASUS) GorlitzGermany Helmholtz-Zentrum Dresden-Rossendorf(HZDR) DresdenGermany Bren School of Environmental Science&Management University of CaliforniaSanta BarbaraSanta BarbaraCAUSA College of Fisheries and Life Science Dalian Ocean UniversityDalian116000China Center for Microalgal Biotechnology and Biofuels Institute of HydrobiologyChinese Academy of SciencesWuhan430072China Institute for Advanced Study Shenzhen UniversityShenzhen518060China Key Laboratory for Algal Biology Institute of HydrobiologyChinese Academy of SciencesWuhan430072China State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesWuhan430072China Laboratory of Fisheries Ecosystem Monitoring and Assessment College of FisheriesOcean University of ChinaQingdao266003China Field Observation and Research Station of Haizhou Bay Fishery Ecosystem(Ocean University of China) Ministry of EducationQingdao266003China

Aquaculture and mariculture are becoming an increasingly important source of food supply in many countries and regions.However,with the expansion of aquaculture and mariculture comes increasing emissions of greenhouse gases(GHG)which contribute to global warming and climate change.China leads the world in aquaculture and mariculture production,but there are no studies that systematically assess China's overall carbon footprint from these industries.This study quantified GHG emissions from aquaculture and mariculture by four source phases(feed,energy use,nitrous oxide and fertilizers),and then analyzed the carbon footprint of each of these phases for GHG production of nine major species groups over the past ten years to show the spatial distribution of GHG emissions from aquaculture and mariculture in China.Our results showed that the production of feed materials contributed most to the GHG emissions and found that crop energy use,crop land use changes(LUC),fertilizer production,crop nitrous oxide production and rice methane production were the main sources of feed emissions.The total GHG emissions of the nine species groups were 112 Mt(10^(9) kg)CO_(2)e,the nine species accounting for approximately 86%of aquaculture and mariculture production.GHG emissions of cyprinids had the highest contribution at 47%.Spatial analysis based on our study showed Guangdong,Hubei,Jiangsu and Shandong had the highest GHG emissions of all the provinces in this study,and they accounted for approximately 46%of all emissions.The regional Gross Domestic Product(GDP)was significantly positively correlated with GHG emissions in every province,with a correlation coefficient higher than 0.6.Our results showed for the first time the relationship between the relative production by species composition and spatial distribution of GHG emissions from aquaculture and mariculture in China.Our findings provide the scientific basis for reduction of GHG emissions within a broader context of expanding aquaculture in the future.

关键词： Greenhouse gas emissions Aquaculture Mariculture Species group feed Carbon footprint Regional gross domestic product

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Potential probiotic and health fostering effect of host gut-derived Enterococcus faecalis on freshwater prawn,Macrobrachium rosenbergii

引用

Aquaculture and Fisheries 2022年第1期7卷 59-66页

作者： Sharmin Sultana Khushi Mohammad Saifuddin Sumon Mirja Kaizer Ahmmed Md Nazmul Hasan Zilani Fatema Ahmmed Stephen G.Giteru Md Golam Sarower Fisheries and Marine Resource Technology Discipline Khulna UniversityKhulna9208Bangladesh Department of Food Science University of OtagoDunedin9016New Zealand Department of Fishing and Post-harvest Technology Faculty of FisheriesChittagong Veterinary and Animal Sciences UniversityKhulshi4225Bangladesh Department of Pharmacy Jashore University of Science and TechnologyJashore7408Bangladesh Department of Chemistry University of OtagoDunedin9016New Zealand Food&Bio-based Products Group AgResearch LimitedPalmerston North4442New Zealand

The present study investigated the potential probiotic effect of Enterococcus faecalis against a pathogenic microorganism,Vibrio harveyi occurring in the giant freshwater prawn(Macrobrachium rosenbergii).V.harveyi was isolated from the intestine of M.rosenbergii through biochemical tests and PCR-based molecular assays.An in-vitro challenge was conducted by mixing isolated probiotic(5.12 log CFU/g)and V.harveyi(3.09 log CFU/g).feeds incorporated with E.faecalis(9.02 log CFU/g)were applied to the treatment group during in vivo test in the aquarium and earthen pond(70 m^(2),1 m depth).Pathogenic bacteria were found to be reduced after 8 h(from 5.02 to 3.62 log CFU/g)and 60 days(from 5.44 to 2.15 log CFU/g)of probiotic administration in the in vitro and in vivo test,respectively.The E.faecalis mixed feed also showed higher weight gain(WG%,481.22%±17.71%;SGR%,2.93%±0.18%)and digestive enzymes activities(amylase,1.26±0.08 unit/mg;protease,2.78±0.02 unit/mg)compared to control group(WG%,371.31%±13.35%;SGR%,2.30%±0.32%;amylase,0.7±0.03 unit/mg;protease,1.82±0.02 unit/mg).Furthermore,the probiotic also improved the immune response by augmenting NGH(from 73.33%±0.23%to 74.63%±0.11%)and SGH(from 22.24%±0.06%to 23.13%±0.08%)in the treatment group.Therefore,E.faecalis could be recommended to use against bacterial infections of the M.rosenbergii.

关键词： Antagonistic effect Biochemical PCR Digestive enzyme activity Immunity feed

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ochratoxin A:Carryover from animal feed into livestock and the mitigation strategies

引用

Animal Nutrition 2021年第1期7卷 56-63页

作者： Abirami Ramu Ganesan Balamuralikrishnan Balasubramanian Sungkwon Park Rajesh Jha Ines Andretta Archibold G.Bakare In Ho Kim Department of Food Science and Home Economics School of Applied SciencesCollege of EngineeringScience and TechnologyFiji National UniversitySuvaFiji Islands Department of Food Science and Biotechnology College of Life ScienceSejong UniversitySeoulSouth Korea Department of Human Nutrition Food and Animal SciencesCollege of Tropical Agriculture and Human ResourcesUniversity of Hawaii at ManoaHonoluluHIUSA Universidade Federal do Rio Grande do Sul Faculdade de AgronomiaDepartment of Animal SciencePorto AlegreRio Grande do SulBrazil Department of Animal Science College of AgricultureFisheries&ForestryFiji National UniversityFiji Islands Department of Animal Resource and Science Dankook UniversityCheonanSouth Korea

This review aims to highlight the effects of ochratoxin A(OTA)in the feed of meat-producing animals.The accumulation of OTA in feed and its distribution in various farm animals were compared and evaluated.Primarily,the oral administration of OTA-contaminated feed and the predisposition in an animal's vital organ were critically examined in this work.The collated reports show that OTA directly associated with endemic nephropathy and its high concentration leads to degeneration of liver cells,and necrosis of intestinal and lymphoid tissues.At present,limited reports are available in the recent liter-ature on the problems and consequences of OTA in feed.Therefore,this review focused on the OTA carryover from feed to farm animals and the interaction of its secondary metabolites on their biochemical parameters.Hence,this report provides greater insights into animal health related to OTA residues in meat and meat products.This article also explores mitigation strategies that can be used to prevent the carryover effects of OTA in livestock feeds and the effects in the food chain.

关键词： Ochratoxin A feed Livestock Meat Mitigation strategy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Rapid one-step enzyme immunoassay and lateral flow immunochromatographic assay for colistin in animal feed and food

引用

Journal of Animal Science and Biotechnology 2020年第1期11卷 280-289页

作者： Jiayi Wang Jinyu Zhou Yiqiang Chen Xinpei Zhang Yongpeng Jin Xiaojing Cui Dongting He Wenqing Lai Lidong He Beijing Advanced Innovation Center for Food Nutrition and Human Health and State Key Laboratory of Animal NutritionCollege of Animal Science and TechnologyChina Agricultural UniversityBeijingChina Department of Chemistry and Biochemistry Florida State UniversityTallahasseeFLUSA.

Background:Colistin(polymyxin E)is a kind of peptide antibiotic which has been approved in animal production for the purposes of disease prevention,treatment,and growth promotion.However,the wide use of colistin in animal feed may accelerate the spread of colistin-resistance gene MCR-1 from animal production to human beings,and its residue in animal-origin food may also pose serious health hazards to humans.Thus,it is necessary to develop corresponding analytical methods to monitor the addition of colistin in animal feed and the colistin residue in animal-origin food.Results:A one-step enzyme-linked immunosorbent assay(ELISA)and a lateral flow immunochromatographic assay(LFIA)for colistin were developed based on a newly developed monoclonal antibody.The ELISA showed a 50%inhibition value(IC50)of 9.7 ng/m L with assay time less than 60 min,while the LFIA had a strip reader-based detection limit of 0.87 ng/m L in phosphate buffer with assay time less than 15 min.For reducing the non-specific adsorption of colistin onto sample vial,the components of sample extraction solution were optimized and proved to greatly improve the assay accuracy.The spiked recovery experiment showed that the recoveries of colistin from feed,milk and meat samples were in the range of 77.83%to 113.38%with coefficient of variations less than 13%by ELISA analysis and less than 18%by LFIA analysis,respectively.Furthermore,actual sample analysis indicated that the two immunoassays can produce results consistent with instrumental analysis.Conclusions:The developed assays can be used for rapid qualitative or quantitative detection of colistin in animal feed and food.

关键词： Colistin ELISA feed Food Gold nanoparticle Lateral flow immunochromatographic assay Monoclonal antibody

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nitrogen partitioning and microbial protein synthesis in lactating dairy cows with different phenotypic residual feed intake

引用

Journal of Animal Science and Biotechnology 2019年第4期10卷 1059-1066页

作者： Yunyi Xie Zezhong Wu Diming Wang Jianxin Liu Institute of Dairy Science MOE Key Laboratory of Molecular Animal Nutrition College of Animal Sciences Zhejiang University

Background: Residual feed intake(RFI) is an inheritable measure of feed efficiency that is independent on level of production. However, physiological and metabolic mechanisms underlying divergent RFI are not fully elucidated.This study was conducted to investigate dietary nitrogen(N) partitioning and microbial protein synthesis in lactating dairy cows divergent in phenotypic RFI.Results: Thirty Holstein dairy cows(milk yield = 35.3 ± 4.71 kg/d;milk protein yield = 1.18 ± 0.13 kg/d;mean ± standard deviation) were selected for the experiment to derive RFI. After the RFI measurement period of 50 d, the 10 lowest RFI cows and 8 highest RFI cows were selected. The low RFI cows had lower dry matter intake(DMI, P 0.10). Compared with high RFI animals, the low RFI cows had a lower retention of N(5.72 vs. 51.4 g/d, P feed N to milk N(29.7% vs. 26.5%, P < 0.05).Conclusions: The results suggest that differences in N partition, synthesis of microbial protein, and utilization of metabolizable protein could be part of the mechanisms associated with variance in the RFI.

关键词： Lactating cows Microbial protein Nitrogen partitioning Residual feed intake

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：