共查询到20条相似文献,搜索用时 62 毫秒
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本文阐述了当前我国养猪业生产和科技发展趋势,并从养猪生产形势、影响养猪生产的因素及“十五”期间养猪业科技发展等方面进行详细的论述与分析。 相似文献
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养猪生产经历了从户外散养转向舍内圈养,进而又到集约化规模经营与人工控制环境条件的根本性转变,对稳定供应市场起到良好作用。但是由于一些消费者青睐自然畜产品而不愿意购买以高度集约化生产方式生产的产品,加上劳动力成本的提高和 相似文献
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《动物科学与动物医学》2009,(1):14-14
1月12日,中英现代畜牧业发展研讨会在渝召开。在会上,英国种猪协会、英国养猪行业组织等表达了投资重庆现代畜牧业,特别是生猪产业的愿望。英国种猪协会是世界历史最悠久的养殖协会之一,英国养猪行业组织拥有英国生猪生产的绝对“话语权”,他们为何把投资的目光瞄准万里之外的重庆? 相似文献
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在那"黑云压城城欲摧"的"文革"十年动乱年代,我国的养猪科教事业与养猪生产遭受了严重的摧残和破坏,"文革"浩劫使全国的养猪业呈现一片萧刹、惨淡的景象. 相似文献
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目前养猪生产发展很快,使养猪业迎来了又一个黄金时代。有的起步晚,摸着石头过河,在实践中学习;有的准备建场。湖北省良友畜禽有限公 相似文献
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Collinder E Cardona ME Kozakova H Norin E Stern S Midtvedt T 《Journal of veterinary medicine. A, Physiology, pathology, clinical medicine》2002,49(4):203-209
Intestinal microbial functions reflect cross-talk between a host and its flora, and external factors may influence these functions. The aim of this investigation was to follow the development of six biochemical microbial-related functions of piglets, raised outdoors (OPs) or indoors (IPs), from birth to slaughter age. The following parameters (microflora-associated characteristic; MAC) were consecutively measured at five different ages: production of short-chain fatty acids (SCFA), conversion of cholesterol to coprostanol and of bilirubin to urobilinogens, inactivation of trypsin, degradation of beta-aspartylglycine and of mucin. Additionally, four parameters (production of SCFA. conversion of cholesterol to coprostanol, inactivation of trypsin, degradation of beta-aspartylglycine) were investigated in faecal samples from germ-free minipigs. The differences in MAC patterns between OPs and IPs were most pronounced at 20 days of age. Differences were found in the total amount of SCFAs, proportions of the acetic, propionic and butyric acids, conversion of bilirubin to urobilinogens, degradation of faecal tryptic activity and degradation of mucin. The values found in the minipigs were within the range of a germ-free animal characteristic (GAC) pattern. Our results show that environmental factors influence the development of some intestinal microbial functions in pigs. 相似文献
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Malignant catarrhal fever in kune kune pigs in the UK 总被引:1,自引:0,他引:1
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Cook AJ 《The Veterinary record》2002,151(21):643-644
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During the last decade the number of outdoor breeding pig units increased in Northern Europe. With comparable results in reproduction and up to 70 per cent lower capital outlays in relation to the conventional indoor systems the interest of farmers in outdoor breeding grew also in Germany. There are a number of issues that are specific to outdoor systems that need to be considered during winter season. 相似文献