水箱养殖黄鳝需要注意的问题（Problems needing attention in eel farming in water tank）.docVIP

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水箱养殖黄鳝需要注意的问题（Problems needing attention in eel farming in water tank）.doc

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水箱养殖黄鳝需要注意的问题（Problems needing attention in eel farming in water tank）

水箱养殖黄鳝需要注意的问题（Problems needing attention in eel farming in water tank） Monopterus albus is a kind of fresh fish. Because of the decrease of wild natural resources, the artificial breeding of eel is of higher economic benefit and promising future. In recent years, with the adjustment of aquaculture structure, the model of cage farming Eel in ponds has been widely popularized. In order to effectively improve the yield and benefit of eel farming and promote the healthy development of eel farming, the cage culture techniques and disease control methods of eels were introduced as follows: A cage, setting: 1. general specification: 7 * 3 strands of polyethylene netting or four yarn knotless netting, size to the width of 1.8 ~ 2.5 meters long, 4.5 to 6 meters, about 1.5 meters high standard. 2.: put the box box, should be 1.5 meters above the water level in the pond, pond and pond for sterilization and inactivation of parasites (i.e. use fresh lime 300 ~ 500 g / m 2. Water disinfection pond. And destroy most parasites, then the best dipterex insecticide treated), Mu Tang Set cage is generally not more than 30 only in cage before 7 ~ 10 days of seedling in water. When you see a layer of algae on the net coat, you can set the seedlings. 3. grass cover: put to transplant sterilized or oil or water hyacinth weed Alternanthera philoxeroides and other aquatic plants in cages before seeding, accounting for about 70% of the area coverage box. Two, seed selection and stocking: 1. seed quality selection, strong physique, no disease, no injury eel as seed. Should not use or use saccharin fed with eel eel seedlings. 2., the breeding time is usually divided into three stages: the first stage is from late March to mid April. This stage due to the weather by the cold, the temperature is still low, the nearest purchase of seedlings, otherwise the survival rate is low, it is best to choose sunny weather release seedlings; fry specifications to 10~30 grams / tail is better, stocking density