家禽繁育技术与公众舆论

家禽的繁殖和选育可在任一年龄段进行。借助新技术,可以实现在不需要有许多鸡和历经多个世代的情况下,能够使种群的生产性能取得较大的进步。但是,误解和缺乏相关知识似乎成了这些新技术被消费者接受的屏障,但这不足以成为我们拒绝使用新技术的理由。     

饲料技术服务之我见

如果把饲料营销业务员比作一台机器的发动机,那么饲料技术服务人员则是最好的润滑剂。事实证明,随着饲料产品品质同质化程度的提高,技术服务在饲料营销中的作用也越来越重要。纵观国内外一些饲料公司,普瑞纳集团曾在中国推行养猪四要素程序化营销策略,现在的大北农集团技术跟踪式服务营销策略,北农大的技     

理解中国经济改革

要理解中国过去30年的经济改革及其成就,我认为有五个转变最关键： 第一,资源配置信号由计划指标转向市场价格。 今天,价格信号不仅在调节绝大部分产品市场,而且也在调节要素市场。中国的劳动力市场是所有要素市场中发展最充分的,市场工资已成为调节人力资源配置的主要信号。     

A survey to determine public opinion about the ethics and governance of farm animal welfare

OBJECTIVE: To determine the attitude of the public toward farm animal welfare and identify beliefs regarding how decisions about farm animal welfare should be made. DESIGN: Telephone survey. STUDY POPULATION: A random sample of 1,019 US households. PROCEDURES: US households were contacted by telephone and asked to take part in a survey consisting of 48 items. RESULTS: A majority (437/773 [56.4%]) of respondents believed decisions about farm animal welfare should be made by experts rather than being based on the views of the public. Such advocates of expert decision making were less likely to believe the government should regulate farm animal welfare. Most (420/773 [54.3%]) respondents believed decisions about farm animal welfare should be based on scientific measures of animal well-being, as opposed to moral and ethical considerations. Those individuals who believed farm animal welfare decisions should be made by experts and be based on scientific measures were the least concerned about farm animal welfare issues. People who believed animal welfare decisions should be made by experts and be based on scientific measures were most responsive to information about use of gestation crates for sows. CONCLUSIONS AND CLINICAL RELEVANCE: These results should help increase recognition that changing public opinion is not simply a matter of convincing the public to support positions established by veterinarians and animal scientists. People's views about the role of the democratic process in regulating technologic change are important determinants of whether people accept the changes in animal agriculture that have occurred during the past century.     

裁掉不拉马的士兵

20世纪20年代,美国一位年轻有为的炮兵军官上任伊始,到下属部队参观炮团演习,他发现有一个班的11个人把大炮安装好,每个人各就各位,但其中有一个人站在旁边一动不动,直到整个演练结束,这个人也没有做任何事。     

Maternal communication with gametes and embryo: a personal opinion

Maternal communication with gametes and embryo remains to be an important research subject in reproductive biology. This is mainly because of the central role that events taking place during this period play in establishment of pregnancy and creation of an offspring. The benefits of understanding how gametes and embryo communicate with maternal tract are not limited to improving conception rates or better fertility. It is apparent that gametes and embryo interactions form the basis of the periconceptional environment. These events play a major role in forming the epigenetic profile of an individual, influencing its development and health in adulthood. In this paper, I will describe some ideas and opinions on the new strategies and tools needed for further understanding of maternal communication with gametes and embryo.