桑饲料效率研究——Ⅰ不同栽植密度与栽植形式对提高桑饲料效率的影响

A STUDY OF FEED EFFICIENCY MULBERRY——Ⅰ.INFLUENCE OF DIFFERENT PLANTING DESNITIES AND FORMS TO INCREASING FEED EFFICIENCY OF MULBERRY

通过对桐乡青、新一之濑两个桑品种10种不同栽植形式,9种不同栽植密度桑的饲料效率研究,结果表明:食下量、消化量、消化率、全茧量、茧层量74%的试验区不高于5%;茧层、茧重转化率和生产效率未达到显著水平.说明在试验范围内的栽植密度与栽植形式的桑饲料价值无大的差异.

Through the research for mulberry feed efficiency in 10 planting forms and 9 planting densities of two mulberry varieties 'Tongxiangcing', 'Sin' ichinose' , 74 percent of experiment plots Were lower than 5% in intake quantity, digestive quantity, digestibility, 74 percent of experimental plots were lower than 5% in intake quantity, digestive quantity, digestibility, cocoon weight and cocoon shell weight. The feed coversion ratio of cocoon shell and cocoon weight as well productive effici-ency were not reached statistically significant level at F0.05. It showed that the planting density and form had no influence to increasing mulberry feed efficiency during the experimental scopes.