细鳞(鱼刺)Therapon jarbua(Forsskl)的食性、生长与咸淡水池塘驯养

Feeding Habit,Growth of Therapon Jarbua(Forssk al) and Its Domesticationin Brackish Water Pond

研究了细鳞(鱼刺)Therapon jarbua的池养习性、食性和生长。细鳞(鱼刺)是一种具相当领域性鱼类,能啄食其他鱼类及同类的鳞片,以动物性饵料为食。生长缓慢,Ⅰ饲养龄内日均增重0.08g,Ⅱ饲养龄0.2g,体长、体重生长方程分别为L_t=196.8032[1—e^(-0.0639(t+2.0188))];W_t=207.7111[1—e(-0.0639(t+2.0188))]^(3.1040)。通过驯养、中间培育,改善投饲方法,进行池塘的单养和混养,饲养2周年,单养最高产量7499.4kg/hm^2,混养9306.5kg/hm^2。细鳞(鱼刺)是很有养殖前景的咸水池养对象。

The paper deals with pond breeding behaviour,food habits and growth of Therapon jarbua. This fish is charactered by a board field fish .peeking scales of other kinds of fish and feeding animal bait. The fish grow slowly,in feeding period I body bearier added 0. 08g/d and 0. 2g/d in period I . The body length(L) and body weight (W) equations may be expressed as Lt = 196. 8032 [1-e-0.0639(t+2.0188]Wt = 207.7111[1-e-0.0639(t+2.0188]3.1040 respeatively. After domesticate cultufe、 middle breed and changing the given food ways for two years,The max output:7499. 4kg/hm2 by single culture and 9306. 5kg/hm2 by polyculture. In breaf ,The culture of Therapou jarbua has fair prospect in saltwater pond.