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当前,西欧大部分地区的动物饲料业看来都处于几近停滞的稳定时期。对有些国家有着很大的期待,尤其是西班牙;但是,从总体来看,饲料的生产量在缓慢下降。与此同时,欧盟的饲料和畜产法规正在日趋严厉。法规日益严厉的趋势也会影响新的欧盟成员国,即使随着欧盟边界的扩展其饲料产量会上升。 相似文献
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文章综述了美国、欧盟和中国的饲料管理的主要法律、法规、指令、指南等。美国、欧盟的饲料管理法规建设历史长、系统、完整、科学、可操作性强。我国饲料管理法规建设发展相对较晚,发展很快,需要借鉴美、欧的经验。饲料法规的发展趋势是更为科学、系统、操作简便、高效率,有利于保护食品安全、动物安全与福利、有利于建立公平、和谐的法制环境,促进饲料工业的可持续发展。 相似文献
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<正>2002年欧盟食品安全局成立以来,欧盟食品安全的立法和监督体系不断完善。尤其是2006年开始实施《欧盟食品及饲料安全管理法规》以来,政策调整、标准修正的力度不断加大。中国作为欧盟食品来源国之一,每年输欧食品金额达数百亿美元。了解和熟悉欧盟食品法规变动的最新动向及要求,及时采取相应对策,实属必要。 相似文献
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褪黑素的英文名为Melatonin,学名N—乙酰基—5—甲氧基色胺,分子式C_(13)H_(16)N_2O_2。褪黑素是由松果体分泌的一种激素,具有调节睡眠、延缓衰老、增强免疫、抑制肿瘤、预防心血管疾病及其它多种调节功能。1 褪黑素与睡眼 褪黑素与睡眠周期有着密切关系。研究发现,褪黑激素在一天24小时中并不是均匀分泌的,而是有昼少夜多的规律。具体数据见表1。 表1 30岁健康成人一昼夜的血清褪黑素含量变化 相似文献
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Jakab C Halász J Szász AM Batmunkh E Kiss A Schaff Z Rusvai M Gálfi P Kulka J 《Acta veterinaria Hungarica》2008,56(3):341-352
The recently identified claudins are dominant components of tight junctions, responsible for cell adhesion, polarity and paracellular permeability. Certain claudins have been shown to have relevance in tumour development. The aim of the present study was to analyse the expression of claudin-1, -2, -3, -4, -5, -7 and -10 in normal canine mammary glands. Samples from the inguinal mammary regions of 20 non-castrated, 1-13 years old female dogs were studied. Immunohistochemical analysis was performed on conventional specimens and tissue microarrays. The results of the immunohistochemical reactions detecting claudins in tissue sections were photodocumented. The immunoreactivity of claudins was quantitatively analysed on digital images using Leica QWin morphometry software. Intense membranous immunolabelling was found for claudin-1, -3 and -7, intense membranous with non-granular cytoplasmic immunolabelling for claudin-2, moderate membranous immunolabelling for claudin-4 and -5, and weak membranous immunolabelling for claudin-10. The occurrence of tight junctions was confirmed by ultrathin section electron microscopy. The available data suggested that claudins might be proteins preserved throughout the evolution of mammals. The results of our study support the concept that they are indeed preserved, since the same type of claudins, in identical distribution, could be detected in our canine mammary tissue samples as could be found in human mammary tissue. 相似文献