A Simple Method for Preparing Several Green Fish Medicines
In the prevention and treatment of fish disease, if local green plants or traditional Chinese medicine can be used to prepare fish medicine, it can not only prevent red skin disease, enteritis, Gill rot and other common diseases, but also save money. The simple preparation methods of several green fish medicines are introduced as follows:
1. Sanhuang powder: rhubarb, Phellodendron Phellodendri and Scutellaria baicalensis Georgi at the proportion of 5:3:2. When in use, 1 kg of Sanhuang powder and 0.4 kg of salt are added to every 10 kg of fish feed, and an appropriate amount of water is added to make granular bait. Once a day for 5 days, the therapeutic effect was significant in the early stage of the disease. After the fish disease enters the advanced stage, the Sanhuang powder can be sprinkled in the whole pool with a concentration of 1-1.5 mg / L. if combined with 0.5 mg / l copper sulfate, the effect is better, once a day for 3-6 days.
2. Gallnut: use 2-3 grams of gallnut per cubic meter of water, and sprinkle it evenly throughout the pool. Can also collect fresh gallnut cotyledons in the form of compost in a corner of the pond, every 667 square meters (mu) with fresh leaves 15-20 kg, 10-12 days after stirring the pool water, and then once a month, with disinfection and sterilization effect. It has a good effect on the prevention and treatment of red skin, enteritis, rotten Gill and other diseases.
3. Masson pine leaves: 1.5 kg of Masson pine leaves are used for every 667 square meters of water, mashed with 50 grams of salt and fed with green ingredients. You can also use 40 kg of fresh Masson pine leaves every 667 square meters, chop and grind and then add 25 kg of water to sprinkle all over the pool.
4. Castor leaves: every 667 square meters of water with castor leaves (stalks) 2-3 kg, chopped and beat the whole pool evenly sprinkled, once every 4-5 days. Castor leaves (stalks) can also be mixed with bait, and castor stalks can be tied into handfuls, 2 kilograms each, and 2-3 handfuls immersed in water for every 667 square meters of water, which can effectively prevent the prevalence of fish disease. Stop feeding fish food the day before feeding castor leaves (stalks) or pulp. Sprinkle the juice evenly and choose to do it on a sunny day.
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SEXUAL IDENTIFICATION AND REPRODUCTION OF ZIBRAFIO
It is not difficult to distinguish between male and female zebra fish: male zebra fish slender body, fin large, yellow body color, anal fin was brown, striated significantly; female fish body is larger, lighter body color, blue, anal fin was pale yellow, pregnant fish belly expansion is obvious. Zebrafish are oviparous fish, 4 months into sexual maturity, generally 5 months old fish reproduction is better. Zebrafish reproduce relatively easily. The reproduction water requires pH 6.5 -7.5, hardness 6-8, and water temperature 25-26 degrees Celsius. Zebrafish are most fond of
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Key techniques for breeding fish species in autumn
Autumn water temperature is appropriate, is a good season for rapid growth of fish species, do a good job in autumn fish species cultivation is very critical, autumn fish species cultivation technology points are as follows: 1, clear pond after 2-3 months of fish species cultivation pond, water quality aging, natural bait reduced, harmful substances and pathogens increased. Therefore, after autumn, fish species should be transferred to ponds disinfected by pond cleaning for cultivation. Under the condition of relatively insufficient water and fish ponds. All the fingerlings can be transferred out for temporary cultivation, and 75-100 parts of quicklime are used for each mu of the original fingerling pond.
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