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渤海黑牛屠宰测定试验 总被引:1,自引:1,他引:0
《中国牛业科学》1995,(Z1)
渤海黑牛屠宰测定试验马亭安,李福玲,王金生,张传高,王者勇1前言渤海黑牛是我国地方良种牛之一。在我国良种牛中独具特色,被毛、蹄、角、鼻镜全黑,低身广躯。我们在“渤海黑牛选育及其品种特性研究”课题实验过程中,曾于1986、1987两年先后进行过三次屠宰... 相似文献
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渤海黑牛是我国地方良种黄牛品种之一。原名无棣黑牛,当地群众称抓地虎黑牛。中心产区在山东省无棣、阳信、沾化及附近各县。当地农民素有饲养、繁殖大家畜的习惯和经验,重视选种选配,经长期自然选择、人工选择育成适应当地条件的渤海黑牛。在中国良种黄牛育种委员会指导下,于1984年组成惠民地区渤海黑牛选育协作组,进行 相似文献
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关于地方品种牛资源保护的思考 总被引:1,自引:1,他引:0
近年来,人们对地方品种牛资源保护的重要性和迫切性已有基本的共识,但在一些具体问题的处理上,特别是在保种的具体方法和措施方面,不同的观点是存在一些分歧的。笔者根据工作实际,对地方品种牛的保种目标、选育保种、保种方式以及开发利用等方面进行了认真思考。 相似文献
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为探索渤海黑牛保种与开发模式,本文采取调查实践、查阅文献等方法,分析了的现状与机遇,提出了强化三个关键环节,完善三项机制的模式。 相似文献
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Takahiro Nishimaki Takayuki Ibi Yoshihiro Tanabe Yoshiyuki Miyazaki Naohiko Kobayashi Tamako Matsuhashi Takayuki Akiyama Emi Yoshida Kazumi Imai Mayu Matsui Keiichi Uemura Naoto Watanabe Tatsuo Fujita Yosuke Saito Tomohiko Komatsu Takahisa Yamada Hideyuki Mannen Shinji Sasazaki Tetsuo Kunieda 《Animal Science Journal》2013,84(8):585-591
Japanese Black cattle are at risk for genetic homogeneity due to intensive use of a few sires. Therefore, assessment of the actual genetic diversity of this breed is important for future breeding plans. In the present study, we investigated the genetic diversity within and among eight subpopulations of Japanese Black cattle using 52 microsatellite markers. The parameters for genetic diversity of Japanese Black cattle were comparable to those of other cattle breeds, suggesting that the relatively high genetic diversity of the breed. However, upon comparison among the eight subpopulations, the Hyogo subpopulation showed markedly low genetic diversity. The results of the pairwise FST values, phylogenetic network and structure analysis indicated that the Hyogo population has remarkably high level of genetic differentiation from other populations, while Yamagata, Niigata, Hiroshima and Kagawa populations have low levels of genetic differentiation. Furthermore, multidimensional scaling plots indicated that individuals in some subpopulations were separated from individuals in the other subpopulations. We conclude that while the overall genetic diversity of Japanese Black cattle is still maintained at a relatively high level, that of a particular subpopulation is significantly reduced, and therefore the effective population size of the breed needs to be controlled by correct mating strategies. 相似文献
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本研究以8个牛品种为研究对象,利用与大理石花纹评分基因相关的7个微卫星位点结合DNA池分析技术,探讨微卫星DNA多态性与8个牛品种大理石花纹评分间的关系,并根据性状同质性原理预测品种组合,以加快生产出高端"雪花"牛肉。结果表明:日本和牛与荷斯坦牛、安格斯牛、渤海黑牛的相似性系数均超过0.8,而日本和牛与其他牛品种的的相似性系数均小于0.8。利用MEGA4软件采用邻接法进行聚类,利木赞牛与西门塔尔牛先聚合在一起,再与草原红牛聚合;渤海黑牛与鲁西黄牛2个地方良种聚合在一起,以上5个品种聚为第1大类。荷斯坦牛与日本和牛聚合,再与安格斯牛聚在一起,它们聚为第2大类。根据本研究结果和国外肉牛杂交生产实践,从牛肉大理石花纹性状的同质性出发,建议利用日本和牛、荷斯坦牛为亲本,杂交生产高档"雪花"牛肉,以解决我国的肉牛牛源短缺问题。 相似文献