共查询到18条相似文献,搜索用时 62 毫秒
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《厦门经济特区养犬管理办法》已于2007年1月19日经厦门市第十二届人民代表大会常务委员会第三十一次会议通过,现予公布,自2007年4月1日起施行。 相似文献
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第一条为加强犬类管理,防止狂犬病的发生,保障公民健康和人身安全,维护社会公共秩序和城市市容环境卫生,根据有关法律、法规,结 相似文献
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J. Bouw 《The Veterinary quarterly》2013,33(4):173-181
Summary Hip dysplasia is considered to be one of the most serious problems in dog breeding. In the past 20 years the studies of, and the attempts to control, this condition have been directed mainly to the overall picture of the abnormality of the hips. The various efforts have resulted in a decrease in the incidence of HD in several breeds of dogs. For other breeds the results have not been very convincing, however. In some instances they are even said to be conflicting with other aims of breeding. Based on these data some separate studies have recently been performded in respect of the details of the disorders in the hip joints and of the heritability of these elements. The present study concerns itself with the roots of the disorders as they are observed in the various breeds. A great variety of data indicates that selection within the canine species for specific morphological traits must be considered as one of the most important roots of the occurrence of HD. The collected data strongly indicate that improvements in the HD status in the various breeds can be reached by selection against specific disorders of the hip joints in these breeds. 相似文献
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第一条为加强养犬管理,规范养犬行为,预防和控制犬类疾病传播,保障公民人身安全和身体健康,维护社会公共秩序和市容环境卫生,根据国家有关法律、法规,结合本市实际,制定本办法。 相似文献
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繁殖生物技术,亦称人工辅助繁殖技术(ART)。人工授精、胚胎移植以及所有围绕配子和胚胎进行的操作技术都属此范畴。本文简述犬的ART的进展,主要集中在人工授精、卵母细胞体外成熟、体外受精、胚胎体外培养、胚胎冷冻保存和胚胎移植等方面,并对今后的发展,尤其是对我国犬的繁殖技术研究和应用,提出一些观点和想法。一、犬繁殖生物技术的进展和现状(一)精液冷冻和人工授精第一次有关犬的精液处理和短期保存研究出现在1960年。此后,逐渐开发和改进了犬精子冷冻保存的方法。1969年,第一批冷冻精液人工授精犬仔在美国诞生。至今,在世界范围内… 相似文献
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转基因技术是生命科学前沿技术之一.它是指将人工分离和修饰过的外源基因导入到生物体的基因组中,从而使生物体的遗传性状发生改变的技术,可分为转基因动物与转基因植物两大分支. 相似文献