herd相关论文
In 2nd March， 2012， Africa lost Lawrence Anthony， an ardent conservationist who died of a heart attack. He is perhaps known......
Reasons of Vaccine Hesitancy among Pakistanis with Available COVID-19 Vaccine: The Next Challenge in
The government of Pakistan started vaccination campaign for the frontline healthcare pro-viders, as they are more likely......
Abstract The paternity index is one of the important parameters which paternity determination depends on. Inbreeding is ......
目的 探讨血清特异性群体反应件抗体(PRA)对脐血CD34+细胞增殖、分化能力的影响.方法 取含PRA(经实验证实)的β地中海贫血患儿血清......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Due to the relatively short history of the development of the Chinese stock market,the investment philosophy and psychol......
通过湖北省黄冈市某奶牛场一年的DHI（Dairy herd improvement）测定结果,对生产和管理中存在的问题进行分析,以便更好地应用这一技术.......
19世纪中叶中法越南问题交涉是清政府维护传统宗藩权，反对法国侵占越南的重大外交行动。但在中法交涉的过程中，始终存在着第三种力量......
本研究基于可持续生计框架,运用Delphi专家咨询法构建了包含5个目标层指标和15个指标层指标的中国北方草原区牧户脆弱性评价指标体......
结构和规模是影响草地放牧生态系统功能实现的重要因素，本文通过建立和分析畜群种群动态模型，揭示了母畜结构参数是影响畜群规模唯一......
市场信息的不对称性以及决策者的非理性，导致联盟合作伙伴选择的羊群行为。运用贝叶斯法则计算盟主企业和候选企业在不同信息水平下......
从众,就是在群体的影响和压力下,个体放弃自己的意见而采取与大多数人一致的行为,通常所说的“随大流”从众,是日常生活和工作中常......
自梅奥等人从霍桑试验中意外发现非正式组织的存在起，非正式组织一直是组织行为学和管理学研究的一个重要内容。本文在对非正式组织......
Validating the Classification of Smallholder Dairy Farming Systems Based on Herd Genetic Structure a
Smallholder dairy farming in Africa is classified into rural, peri-urban and urban systems. The major classification cri......
DHI的应用不仅为提高原料奶质量提供技术数据,增强市场竞争力,还在饲料营养调控中注重能氮平衡,提高牛奶乳脂、乳蛋白,尿素氮,乳腺......
Throughout the humid tropics of Asia,smallholder dairy(SHD)farmers have developed their production systems largely based......
Different viruses transmit among hosts with different degrees of efficiency.A basic reproductive number(R0)indicates an ......
Grassland is most important in China due to its multi-functions. However, about 90% of total usable grassland in China h......
The objective of this study was to describe the trend of reproductive performance of primiparous and multiparous cows th......
