摘要
用正交试验法研究了性比、饲料和投放密度三因子对福寿螺产量的影响。结果表明,以饲养雌螺、投喂混合饲料(满江红或紫贝浮萍加麸)和每亩投放10万幼螺的组合最好。还讨论了水生植物作为福寿螺饲料的优点和实现福寿螺单性生产的问题。
The effects of sex ratio, feed and density factors on yield of A. gigas were investigated by the L_9(3~4) table of the orthogonal design method. The results showed that the best treatment is breeding the female snails, raising them with the mixed feed(A, imbricata or S. polyrhiza plus wheat bran)and throwing in 150 young snails per square meters. The merits of feeding aquatic plants to the snail and its monosex production were also discussed.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
1991年第1期87-91,共5页
Journal of Beijing Normal University(Natural Science)
关键词
福寿螺
性比
饲料
投放密度
贝类
Ampullaria gigas
monosex
Azolla imbricata
Spirolela polyrhiza
