| 不同蚕品种的饲料效率初探 |
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| 引用本文： | 庄大桓,项美华,陈国瑚.不同蚕品种的饲料效率初探[J].蚕业科学,1986(1). |
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| 作者姓名： | 庄大桓 项美华 陈国瑚 |
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| 作者单位： | 中国农业科学院蚕业研究所
(庄大桓，项美华)，中国农业科学院蚕业研究所(陈国瑚) |
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| 摘 要： | 本文调查分析了近二、三十年来,我国春用蚕品种和夏秋用蚕品种主要经济性状的变迁情况。结果表明,目前推广的蚕品种与五十、六十年代推广的品种相比较,茧层量、茧层率,茧丝量、茧丝长等主要经济指标都有了显著的提高,尤其是茧层量、茧层率的增长更为突出.但5龄经过和食下量也相应地增加,蚕的消化率以及饲料效率几乎没有提高。从而认为,在今后蚕品种改良过程中,应重视提高饲料效率的研究,并通过桑品种改良、饲育技术等途径,提高饲料效率,提高养蚕的经济效益。
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| 关 键 词： | 家蚕 蚕品种 饲料效率 |
A preliminary study on the dietary efficiency in different silkworm varie-ties. |
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| Zhuang Dahuan.A preliminary study on the dietary efficiency in different silkworm varie-ties.[J].Acta Sericologica Sinica,1986(1). |
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| Authors: | Zhuang Dahuan |
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| Institution: | Zhuang Dahuan |
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| Abstract: | The present study was carried out in China on the changes of economic characters in the spring- and autumn-rearing silkworm va-reties. The results showed that cocoon weight, cocoon shell weight, cocoon layer ratio, cocoon filament weight, cocoon filament length and other economic characters of the current commercial varieties, especially cocoon weight and cocoon layer ratio, have been improved remarkably in comparison with those of the varieties popularized in the 1960-1960s. However, with improvement of the above economic values, the duration of the 5th instar and the amount of food consumed increased,whereas there were almost no improvement in digection rate and dietary efficiency .Therefore, special attention should be paid to the research on increasing dietary efficiency that may be realized by silkworm breeding, mulberry breeding, improvement of rearing techniques, etc. |
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| Keywords: | Bombyx mori Silkworm variety Dietary efficiency |
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