| Farmers say that livestock eats various herbages and grows fat without feeding. It is thus clear that fodder takes great effect on the husbandry production. Jinhua with a laudatory title is named "Cows' hometown of the South China". However, the high production of cows is depended on the quality herbage. This thesis comprehensively investigates the current situation of raising cows and planting herbage in Jinhua, meanwhile, introduces 38 new varieties successively from the foreign countries and Beijing Golden Earth Agriculture Research Institute. These cultivars were cultivated and sampled. The results are as follows:1. Dongmu-70 could grow in the sever winter after seedling, whose output and protein content were higher than those of Lolium sp. The Precocious dualploid and Italy tetraploid ryegrass with a long fertility period sustained growing till the late June, while the Lolium sp. formed seeds in the middle of May. As a result, the utilization limit of rye could be prolonged for about one month. The Lolium perenne had no clear superiority in phenology and growing period.2. Medicago sativa with the characteristics of high yield, fine quality, good taste and high nutritive value, contained the major nourishing composition such as plentiful protein, minerals and vitamin as well as essential trace elements and amino acids for animals. Medicago sativa planted here showed that the protein ratio ranged from 16.01% to 24.78%; the tallest plant was Sandeli; the highest output was WL-323 (2.25 kg/m2). However, the comprehensive analysis on the index of biologic yield, the protein content, the height of plant, the branches and the over-summering rate of Medicago, indicated that several varieties of WL-323HQ, Lierenhe, Dafuhao, WL-323, WL-525HQ were suitable to the local growing environment, which could be expanded and popularized for the first time.3. Mexico corn was the main fodder for the herbivorous animals in Jinqu basic in summer and autumn. Sorghum bicolor and Sorghum sudanense Stapf. were the supplementary feed, for their drought- and heat- resistant features. Sorghum sudanense Stapf. 3 meters tall, high yield, particularly its good taste could be recommended for the farmers. Trifolium repens was not worth advocating because of its lower yield though it contained high protein content. Rumexk-land European Cichorium indica L. had much minerals, rich calcium, less fibers, plentiful and necessary amino acids besides the high protein. European Cichorium indica L., of which tender stems, juicy leaves and favorite taste fitted the cow, sheep, pig, rabbit chicken and goose, was a new variety of quality Lolium perenne. Cichorium indica L. had powerful disease resistance and was easy to be planted; Amarantus paniculatus had a high production. The root of S. officinale was cut apart to be planted and had a strong reproductive capacity, easily spread regardless of different regions and soils. RumexK-1 had serious insect pests and low-yield, which hardly grew in the hot July and August seasons.4. The grain grass had a good taste, which is the cow's favorite feed as the fabaceous Medicago sativa, while RumexK-1 had poor taste. The composite grass was juicy, crisp and tasty except the astringent flavor in Lactuca India L. In spite of its high protein and nutritive value, S. officinale contained too much rigid burr on blades, affecting the flavor. Therefore, considering the taste to animals, RumexK-1 and S. officinale were inadvisable to be fed to the livestock extensively before they were properly processed.5. During the period of 2003-2004, the experiments found that Dongmu-70 and Medicago sativa were the fairly good varieties, based on the biological characteristics, grass production and the nutritive composition. Moreover, comparing Lolium perenne planted in the local area and the traditional cow feeding approaches (weed and leftover from quick-frozen vegetable factory are foddered), the milk production of cows in Group â…¢ fed on Medicago sativa was significantly higher than that of cows in Group I on Lolium sp. and the control Group on weed, leftover (p<0.01), and obvious difference from Group â…¡ on Dongmu-70 (p<0.05). There was significant difference... |
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