熵权赋权法灰色系统理论在外来牛改良本地牛生长性能综合评价中应用.pdfVIP

2010 年家畜环境与生态学术研讨会论文集 熵权赋权法灰色系统理论在外来牛改良本地牛生长性能综合评价 中的应用 1 1，2 鲁云风 ，文祯中 （1.河南南阳师范学院 生命科学与技术学院，南阳 473061 ；2. 河南平顶山学院 平顶山467000 ） 【摘 要】科学便捷地评价外来牛改良本地牛生长性能效果,为科学的引种改良提供依据。本文应用熵 权赋权法灰色系统理论分别对相同生长条件下的 12 月龄德南牛、皮南牛、夏南牛、利南牛的体高、 体长、胸围、管围、体重 5 项指标进行分析,建立综合评估模型,并对其生长性能进行了综合评估。夏 南牛、德南牛得分最高,综合生长性能最好。德国黄牛和夏洛来牛改良南阳本地牛效果最好,适宜在本 土推广。评价结果与生产实际相符,说明熵权赋权法的灰色系统理论可以用于外来牛改良本地牛生长性 能的综合评价。 【关键词】熵权法;灰色系统理论;南阳牛;综合评价；生长性能 Application of Entropy Weight-based Gray systematic Theory to Integrated Evaluation in the Growth Performance of Crossbred Beef Cattle LU Yun-feng,WEN Zhen-zhong （1.School of life science technology Nanyang normal university,Nanyang Henan 473061；2. College of Pingdingshan; Pingdingshan Henan 467000; China ） Abstract:In order to evaluation the improving effects of foreign breeds cattle on local cattle,entropy weight-based gray systematic theory was used to evaluate crossbreds of Nanyang cattle with peidmntess,charolais,German yellow cattle and limousin according to their height,length,chest girth,cannon circumference and weight,then we set up a comprehensive model with gray systematic theory and evaluated their growth performance with it.It was showed that the scores of crossbreds of Nanyang cattle with German yellow cattle and charolais were high and the improving effects of German yellow cattle and charolais were the best.These two cattle variety are suitable extension in Nanyang.The result of gray systematic analysis was consistent with production practice,which indicated that entropy weight-based gray systematic theory could be used in integrated evaluation in the growth performance of crossbred beef cattle. Key words: Entropy weight; Gray systematic theory;