林木饲料的开发生产

1松针饲料添加剂的生产松针饲料添加剂,又称松外粉饲料,是一种富含维生素和微量元素的畜禽补充饲料。特级品中含胡萝卜素90ghe以上,含微量元素有锌、硒、铁、锰、铜、钻、钢等,钙和磷的含量也较高,并含有畜禽需要的绝大部分的氨基酸。因此制成配合饲料用以喂养畜禽,具有抗疾病、增重快、产蛋产奶多的作用。一般在猪饲料中添加25％～4．5％的松针粉,增重率能提高15％～40％,并提高瘦肉率;在蛋鸡饲料中添加5％松外粉,产蛋率可提高13％以上;在奶牛饲料中添加Ic％松针粉,产奶量可提高4．5％～74％。此饲料是由松林抚育和采伐时产生…     

华北落叶松针叶粉饲喂产蛋鸡效果的研究

华北落叶松针叶含有多种营养物质及生长素、植物杀菌素等,落叶可作为饲料资源,变废为宝,具有较高的社会和经济效益。通过在同一营养水平下,不同松针叶粉含量日粮饲喂产蛋鸡效果的试验表明：在鸡日粮中添加３％的华北落叶松针叶粉,可以提高产蛋量和饲料转化率,并且有促进蛋黄着色作用。     

甜菜碱对肉用仔鸡生长性能的影响

将２００只１日龄艾维茵肉用仔鸡随机分为４组（Ｉ、Ⅱ、Ⅲ、Ⅳ组），每组５０只，饲喂４种不同处理的日粮５周（含甜菜碱０、５×１０－４、１×１０－３、１．５×１０－３），自由采食和饮水，测定增重和饲料消耗。结果表明，３周龄时各组鸡平均体重差异不显著（Ｐ＞０．０５），但在５周龄时饲喂５×１０－４甜菜碱的鸡增重提高１６．５％（Ｐ＜０．０１），并使饲料消耗降低１．２％，其他试验组差异不显著。可见饲料中添加甜菜碱对提高肉用仔鸡生长性能、降低饲料消耗具有显著的经济效益。     

中草药浓缩饲料配方

本发明涉及一种中草药浓缩饲料及其生产方法。它是由豆粕、羽毛粉为主，加少量的骨粉、食盐和大黄、陈皮、山楂、板兰根、蒲公英、大青叶、丹参、艾叶、茵陈、甘草等中药。其生产方法，是在预先制好的羽毛粉和骨粉的基础上，再将45-55％的豆粕、35-45％的羽毛粉和5-7％的骨粉混均搅拌后，加入2．4-2．6％的中草药和0．3-0．5％的食盐进行粉碎。待上述成分的主料粉碎并充分搅拌均匀后，进行检验、包装、入库。     

我国饲料工业和饲料市场需求问题的探讨

一、配合饲料需求大幅度上升的可能性不大1．近年饲料价格的变化趋势从1994年1月以来猪配合饲料、鸡配合饲料的价格按月变动情况来看，两种配合饲料的价格在1995年8月前确实表现为总体不断上升的趋势。其中猪配合饲料的价格从每公斤1．12元几乎是直线上升到2．01元，平均每公斤饲料上涨0．89元；鸡配合饲料的价格从每公斤1．25元也持续上升到2．20元，平均每公斤上升0．95元。但在1995年8月之后，情况出现了变化，鸡配合饲料的价格基本趋于稳定，到1996年12月仍保持在2．18元／公斤，每公斤比1995年8月只减少2分钱。猪配合饲料的价格，不但…     

杜仲种粕粉在肉鸡饲料中的应用

将杜仲种粕粉用作饲料添加剂进行肉鸡育雏、育肥研究.将肉鸡分成实验组和对照组,每组设3个重复,实验组的饲粮中添加杜仲种粕,记录实验组和对照组鸡只的成活率、生长速度、抗病能力、鸡只外观、成本以及鸡肉的肉质和鲜嫩度等指标并进行分析.研究表明,实验组比对照组的成活率平均提高8.4％,利润提高65％,毛色、抗病能力、肉质及鲜嫩度等都有明显改善.     

长毛对虾饲料的适宜蛋白质含量

比较了5种常用的对虾蛋白质源饲料和长毛对虾的蛋白质和氨基酸组成,测定对虾对这些饲料的消化率。结果表明:长毛对虾对大豆饼粉、花生饼粉、脱脂秘鲁鱼粉、秘鲁鱼粉和小杂鱼粉的消化率均达到82％以上。5种原料中多数氨基酸的含量高于对虾肌肉中相应氨基酸的含量;但lys、Met、Arg、Ile、Leu 和His等6种必需氨基酸远不及虾体中的含量。以不同比例的秘鲁鱼粉、大豆饼粉、玉米粉和麦麸配制成 5种配合饲料,测定其营养成分以及长毛对虾摄食这 5种配合饲料后的生长率,结果表明:以秘鲁鱼粉为主要蛋白源、蛋白质含量40～45％的饲料,可以较好地满足长毛对虾正常生长的需要,其生长率最高。     

国外开发的饲料特殊添加剂

随着畜牧禽鱼业的日益发展，饲料特殊添加剂的需求也日渐增长。为适应这种新形式，饲料特殊添加剂在品种和质量上不断地推陈出新。饲料特殊添加剂可以强化营养素在饲料中的含量，提高其营养价值。近年来，国外开发出许多饲料特殊添加剂。柠檬酸英国的研究人员，在每公斤仔猪饲料中添加209柠檬酸，喂养10日龄断奶的仔猪，其日增重可比不添喂柠檬酸的仔猪提高近20％。黄霉菌素德国的科学家，在猪的体重长别35kg以后，向饲料中添加黄霉菌素，其数量为仔猪每公斤饲料添加sing。饲喂后，猪的日增重可提高7％，饲料的转化率可提高5％。铜日本的畜…     

桔皮抗氧化作用的研究

将不同量的桔皮粉加到植物油和猪油中，比较不同含量的桔皮粉对油脂的抗氧化性能，研究表明，桔皮粉具有较强的抗氧化活性，当桔皮粉在植物油中的含量为0.02%和0.1%及在猪油中的含量为0.3%时，显示有强的抗氧化活性。     

麦秸酵母饲料饲喂妊娠前期母猪试验初报

我国秸杆年产量高达5．7亿吨,饲用率只有约25％,其中经过处理利用的仅占秸杆总量的8．5％,大量秸杆资源有待我们去开发和有效地加以利用。而且酵母及酵母培养物也有着独特的生理特性,‘e能有效提高家畜对饲料的消化利用率和生产性能。用酵母菌直接发酵麦秸,就将秸杆开发利用和生产活性酵母两件极有意义的工作联系了起来。在此前的工作中已筛选出一个较好的酵母菌种组合,并对它们直接发酵麦秸粉的发酵工艺进行了研究确定。本试验将发酵产物添加在妊娠前期母猪日粮中,观察比较饲喂效果。1材料和方法1．1麦秸酵母饲料的生产生产菌种生产…     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has