重庆野生牧草资源营养价值综合评价

为筛选优异的地方饲草资源,本文采用灰色关联度分析法对27种野生牧草资源的营养价值进行初步评价。结果表明:营养价值评优秀的资源有广布野豌豆和红蓼等2份材料,其粗蛋白质含量分别为26.26%、21.02%;营养价值评良好的有白花草木犀、藜,其粗蛋白质含量分别为22.72%、17.65%;营养价值评中等的有9份材料;营养价值评定为较差的有14份材料。评优良的4份资源材料可进一步开展动物饲喂试验和牧草生产性能评价试验,以明确其产草量、适口性和消化率等,在综合评价后筛选出的优异资源可作育种素材进一步选育利用。

The comprehensive evaluation of nutritional value of wild forage resources in Chongqing

In order to screening the excellent local forage grass resources,the nutritional value of 27 wild forage resources was preliminarily evaluated by the grey correlation degree analysis method in this paper.The results showed that the resources with excellent nutritional value were two materials,such as Vicia cracca L.and Polygonum orientale L.,whose crude protein content was 26.26%and 21.02%respectively;The resources with good nutritional value have 2 kinds of materials,such as Melilotus alba Medic.ex Desr.and Chenopodium album L.,whose crude protein content was 22.72%and 17.65%respectively;The nutritional value of the 9 materials was evaluated as medium;The nutritional value of the remaining 14 materials was evaluated as poor.The above 4 excellent resources materials could be further used for animal feeding test and forage production performance evaluation test,so as to clarify the forage yield,palatability and true nutritive value,etc.The excellent resources screened after comprehensive evaluation could be used as breeding materials for further selection and utilization.