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国外畜牧学（猪与禽） 1990年第5期10卷 11-13页

作者：钱华颖 peter r.ferket 美国北卡罗来纳州立大学

近年来,美国北卡罗来纳州立大学收集并分析了关于饲料配料的数据,同时报告了关于饲料质量的问题。通过这些年的研究,研究者们得出关于饲料配料质量重要性的结论,并分析了影响配料质量的因素。本文简介了研究者的研究结果,并提出了购买... 详细信息

近年来,美国北卡罗来纳州立大学收集并分析了关于饲料配料的数据,同时报告了关于饲料质量的问题。通过这些年的研究,研究者们得出关于饲料配料质量重要性的结论,并分析了影响配料质量的因素。本文简介了研究者的研究结果,并提出了购买配料时应注意的问题。

关键词：饲料配料质量控制

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影响采食量的因素

国外畜牧学（猪与禽） 2004年第4期24卷 13-18页

作者：赖文清 peter r.ferket Abel G.Genat 美国北卡罗来那州立大学农业和生命科学学院家禽科学系

采食量是影响肉用家禽体增重和饲料利用率的主要因素。必须理解有关饲料及其管理措施 ,才能纠正任何可能发生的问题。

关键词：采食量家禽增重饲料利用率食欲调节日粮因素管理因素疾病因素

Effect of dietary supplementation of xylanase on apparent ileal digestibility of nutrients,viscosity of digesta,and intestinal morphology of growing pigs fed corn and soybean meal based diet

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Animal Nutrition 2015年第1期1卷 36-40页

作者： Adsos Adami Passos Inkyung Park Peter.ferket Elke von Heimendahl Sung Woo Kim North Carolina State University Lohmann Animal Nutrition CmbH

This study was to determine apparent ileal digestibility of acid detergent fiber(ADF), neutral detergent fiber(NDF), dry matter(DM), energy, organic matter(OM), crude ash, digesta viscosity, and gut morphology in nursery pigs fed diets containing xylanase(Lohmann Animal Nutrition GmbH, Cuxhaven, Germany). The diet(61% corn, 35% soybean meal, 1% poultry fat, and 3% minerals and vitamins) was mixed with 3 levels of xylanase(0,700, and 1400 LXU/kg). Thirty-six barrows(17.6 ± 3.3 kg) received one of 3 treatment diets based on a randomized complete block design with the initial body weight(BW) as a block. Pigs were individually housed and received experimental diets twice daily(0700 and 1700 h) at a fixed amount based on BW of pigs(0.09 x BW^(0.75) kg). Pigs were fed diets for 10 d, and chromium oxide(0.3%) was added to the diets from d 6 as an indigestible external marker. Pigs were euthanized at the end of d 10 for the collection of digesta and tissues. Jejunal digesta were centrifuged to measure viscosity using a viscometer(Brookfield Engineering Laboratories, Stoughton, MA). Diets and freeze-dried ileal digesta were used to measure ADF, NDF, and chromium to calculate apparent ileal digestibility of ADFand NDF. Villus height and crypt depth of jejunum were measured using a microscope(Fisher Scientific, Hampton, NH). Data were analyzed using polynomial contrasts in the MIXED procedure of SAS version 9.3(SAS Inc., Cary, NC, USA). Morphological measurements and ileal ADF digestibility were not affected by increasing xylanase. However, increasing xylanase supplementation from 0 to 1400 LXU/kg enhanced ileal digestibility of NDF(P r) from 27.9 to 40.3%,DM(P r) from 55.4 to 64.6%, OM(P r) from 59.2 to 67.7%, and energy(P r) from 58.8 to 68.0%. Viscosity of jejunal digesta decreased(P r manner from 2.9 to 2.5 centipoises(cP). In conclusion, the usage of xylanase in corn and soybean meal based pig d

关键词： Digestibility Pigs Viscosity Xylanase

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饲料营养对家禽肠道健康的作用

中国家禽 2013年第16期35卷 40-41页

作者： Peter.ferket 美国北卡罗莱纳州立大学农业和生命科学学院

家禽日粮、肠道黏膜和微生物菌群的互作以维持其肠道健康。文章对家禽肠道的免疫细胞和肠道微生物菌群对肠道健康的具体作用做简要介绍。

关键词：家禽肠道健康微生物菌群

Blind spots in climate finance for innovation peter WArrEN

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Advances in Climate Change research 2020年第1期11卷 60-64页

作者： peter WArrEN School of Public Policy University College London(UCL)LondonWCIH 9QUUK

International climate finance is a sub-set of green finance and refers to investments specifically in climate change mitigation and adaptation activities,which primarily involve public finance and the leveraging of private finance in developing *** addition to continued international support for scaling low carbon solutions and facilitating replicability in developing countries,there remains an important need to increase the amount of climate finance provided to innovation,particularly demonstration(for technology innovation)and pilot implementation(for policy innovation),and to channel a greater proportion of Official Development Assistance(ODA)to‘hard-to-abate'areas,such as industrial decarbonisation,international transport and cross-sectoral issues like cooling and behavioural insights,to accelerate the commercialisation and implementation of technological,linancial and policy solutions to contribute to meeting the Paris Agreement's goal of limiting global warming to‘well-below'2℃ in these *** research,development and demonstration(rD&D)support with technical assistance is important in providing the route to obtain wider donor finance(concessional finance)and private finance to enable deployment through scalability and replicability.

关键词： Climate finance Climate policy Paris Agreement Official development assistance Industrial decarbonisation Sustainable cooling Behavioural insights International transport

Handling Characteristic Evaluation of Free, Standard and Lipid Microencapsulated Vitamin and Mineral Premixes

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Journal of Agricultural Science and Technology(A) 2020年第5期10卷 247-256页

作者： Olivia Wedegaertner Adam Fahrenholz Jean-Daniel Bunod Jean Fontaine Peter.ferket Prestage Department of Poultry Science North Carolina State University2711 Founders DriveRaleighNC 27607USA JEFO Nutrition Inc.5020 Avenue JefoSaint-HyacintheQUEJ2R 2E7Canada

Feed ingredients can change physically or chemically when exposed to moisture,heat or *** changes impact how well they flow through a bin and disperse throughout the *** is a relatively new technique used to reduce reactivity and improve storage and handling characteristics(HC)of *** authors hypothesize that lipid matrix microencapsulation of free vitamin and mineral(VM)premixes significantly improve their HC making them more desirable products for feed *** samples of free,standard and lipid microencapsulated VM premixes were evaluated for the following HC:particle size(dgw),particle size variability(Sgw),flowability(measured by angle of repose(AOr)and minimum orifice diameter(MOD)),lumping,compressibility,bulk and tapped density,solubility and hygroscopic percent change in weight(day 0-1,0-3,0-5,5-9,0-9).results were analyzed in a 3×2 factorial(JMP Pro 14)of form(free,standard,microencapsulated)by type(vitamin,mineral).Microencapsulated VM had the highest dgw(611.0mm and 722.7mm,respectively,p=0.002);free and microencapsulated vitamins had the smallest Sgw(1.67 and 1.49,respectively,proencapsulated premixes had significantly lower AOr(pr premixes,indicating improved *** days 0-3 and 0-5,microencapsulated premixes absorbed approximately half as much moisture(1.62%and 2.24%,respectively)than the free(3.48%and 5.04%,respectively)or standard(3.74%and 5.26%,respectively)premixes(p=0.001).The benefits gained from lipid matrix microencapsulation technology not only improve the HC of animal feed additives,but also improve the stability of VM premixes.

关键词： Lipid microencapsulation vitamin mineral poultry swine flowability

Homogenization Theory for a replenishing Passive Scalar Field

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Chinese Annals of Mathematics,Series B 2009年第5期30卷 631-644页

作者： peter r. KrAMEr Shane r. KEATING Department of Mathematical Sciences Rensselaer Polytechnic Institute Center for Atmosphere-Ocean Science Courant Institute of Mathematical SciencesNew York University

Homogenization theory provides a rigorous framework for calculating the effective diffusivity of a decaying passive scalar field in a turbulent or complex *** authors extend this framework to the case where the passive scalar fluctuations are continuously replenished by a source (and/or sink).The basic structure of the homogenized equations carries over,but in some cases the homogenized source can involve a non-trivial coupling of the velocity field and the *** authors derive expressions for the homogenized source term for various multiscale source structures and interpret them physically.

关键词： Homogenization Turbulent transport Source Pumping