摘要
本文探讨了实验条件下饲料、水温、投饲率等因子对中国对虾摄食与生长的影响。初步结果:(1)在23～30°C温度范围内,对虾对人工配合饲料和鲜活饵料的日摄饵量随水温上升而增加;(2)对虾对人工配合饲料和鲜活饵料的日摄饵率随体长增长而下降,配合饲料的日摄饵率在体长8cm处有一个明显的突降,对鲜活饵料的日摄饵率的突降点则出现在对虾体长l0cm处;(3)降低投饲率可使饲料效率明显提高,生长率则相应下降,但当投饲率降到50％时,饲料效率不再提高,生长率明显降低。
Comparative raising experiments were carried out, to study the effects of feed, water temperature and feeding dose on eating and growth of P. chinensis. The results showed: 1) In the temperature from 23℃ to 30℃ the eating amount by P. chinensis of both artificial Jeed and spiral shell meat would increase as the water temparature rose. 2) With the growth of body length, the daily feeding efficiencies of P. chinensis for both artificial feed and spiral shell meat would be lowered. The daily feeding efficiencies of penaeus for artificial feed would be lowered steeply at 8 cm body length. This downward feeding effeciency would happen at 10 cm body length if the penaeus eat spiral shell meat. 3) Reducing the feeding efficiency would make the feed efficiency rise up, but make the growth efficiency low. When feeding efficiency was lowered to 50%, feed effciency could not , rise further, so a clear decrease of the growth efficiency ocurred.
出处
《海洋科学》
CAS
CSCD
北大核心
1992年第2期36-40,共5页
Marine Sciences
基金
上海市青年科学基金
关键词
对虾
摄食
生长
饲料
水温
饲料
Feed, Water temperature, Feeding dose, P. chinensis, Eating, Growth.
