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近年来,我区胡子鲶的养殖发展很快,1987年引种100万尾,放养1300余亩、产鱼25000公斤。本人前后曾多次赴两广调运胡子鲶鱼苗,平均成活率达9O％,积累了一定的运输经验,现介绍如下: 一、运输前的准备做到四点:<一>是密集锻炼,用纱绢轻轻将鱼苗密集,让其相互摩擦减少粘液,防止水质恶化。<二>是控制投饵:因胡子鲶食量大、又贪食,故只需喂半饱。若投饵过多,运输中溶氧不足很易死亡。<三>是去劣存优:运输前一天,用筛把鱼按不同规格分开,除去“老、弱、病、残,”以防中途死亡,恶化水质。<四>是运输规格:以2.5—3.5cm为佳,因这时鱼苗的消化、呼吸和
In recent years, our region catfish rapid development of catfish, introduced 1000000 in 1987, stocking more than 1300 acres, fish 25000 kilograms. Before and after I have repeatedly went to Guangdong and Guangxi transport beard catfish seedlings, the average survival rate of 9O%, accumulated a certain amount of transport experience, are presented below: First, the preparation of transport to do four points: <1> intensive exercise, with yarn Silk gently fry dense, friction between each other to reduce mucus, to prevent deterioration of water quality. <2> is to control the feeding: due to large bearded catfish, but gluttonous, so just feed half full. If too much investment, transportation of dissolved oxygen is very easy to die. <3> is to go for the worse Survival: the day before transport, with the sieve to separate the fish according to different specifications, remove the “old, weak, sick, disabled,” to prevent death in midway, deteriorating water quality. <4> is the transport specification: 2.5-3.5cm is better, because of the digestion, respiration and fry at this time