论文部分内容阅读
由养鱼者、鱼药生产者和水产科技人员三结合进行的鱼药疗效试验,1993年春季以来在沙市郊区显示了很好的效果,现仅举二例说明。例一、沙市郊区三板桥养鱼户牛××,有鱼塘8.5亩,大部分饲养鲤鱼,1993年春在鲤鱼苗孵化中,发生严重的水霉病,虽用孔雀石绿治疗抑制了水霉病,但鱼池中的虫害防治被忽视了,以至于影响到其他鱼类。4月下旬老牛买回草鱼种400余尾,规格尾重75—250克,放入鱼塘中设置的网箱内,老牛认真检查鱼种,发现有的草鱼鳃上有小白点,经科技人员镜检是中华鳋,多数鱼鳃有1—2个虫体,个别草鱼有3个虫体,共检查出被中华鳋感染的草鱼64尾,为了防止虫害蔓延,将寄生中华鳋的64尾草鱼放入另一个网箱中,当时中午的水温为14℃,用B型高效渔家欢全池遍洒,使池水成0.5ppm浓度。第二天下午2时,用浮游动物网在水中取样三次检查,无剑水蚤,虫体都被药杀死。检查草鱼种,鱼鳃上的小白点虫体正变为灰褐色死去,个别鱼鳃上虫体脱落。这次选用B型高效渔家欢药,对杀灭中华鳋和剑水蚤收到很好的效果。
The efficacy test of fish medicine conducted by the combination of fish farmers, fish drug producers and aquatic scientific and technical personnel has shown good results in the suburb of Shashi since the spring of 1993, to cite just two examples. For example, in Shaban Suburb Sanbanqiao fish farmer × ×, there are 8.5 acres of fish ponds, most of carp feeding, in the spring of 1993 carp hatching, a serious water mold disease, although malachite green treatment inhibited water Mildew, but pest control in fish ponds is neglected, affecting other fish. In late April the ox bought more than 400 grass carp tail specifications 75-250 grams of tail weight, into the fish pond set in the cage, the cow carefully check the species, found some white spots on the grass carp gills, Microscopic examination by the scientific and technological personnel is the Chinese flounder, the majority of fish gills have 1-2 parasites, individual grass carp has 3 parasites, detected a total of 64 Chinese crab infected grass carp, in order to prevent the spread of insect pests, 64 grass carp into another cage, when the water temperature was noon at 14 ℃, with a full-B-type high-efficiency fisherman Huanchi sprinkling, the pool water concentration of 0.5ppm. The next day at 2 pm, with zooplankton in the water sample three times to check, without Sword Daphnia, parasites were killed. Check the species of grass carp, white spotted fish on the gill body is turning gray-brown, individual fish gills off. The selection of B-type high-efficiency fisheries Huan medicine, to kill Chinensis and Sword Daphnia received very good results.