Reproduction of swordtail fish
Swordtail fish are oviparous fishes. The swordtail fish has a strong fecundity. At the age of 6-8 months, the male fish begins to chase the female fish and mate with the female fish to complete in vivo fertilization. The fertilized eggs hatch into larvae in the female and are excluded from the body.
Swordtail fish are easy to breed and need no special management. When breeding, choose more than 5 centimeters of fish, the female-to-male ratio of 1:1 or 2:1 is appropriate, the bottom of the cylinder covered with some soft leaves of water plants, feed enough bait. After the female fish conceived, the abdomen began to dilate and dark fetal plaques appeared. At this time, the male fish should be fished out. There are 20-30 larvae at the beginning of each fetus, and more than 200 later. The water temperature should not change much within 3 months after the larva is born, and it is best to keep it at about 24 degrees Celsius.
When the feed temperature is 20-28 degrees Celsius, swordtail fish give birth every 5-8 weeks, and the water hardness suitable for reproduction is 6-9 degrees. PH7-7. 2.
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Shredded fish with palace lanterns
Raw materials: Mandarin Fish, Lentinus edodes, green pepper, red pepper. Seasoning: salt, monosodium glutamate, rice wine, chopped spring onion and ginger, raw diamond powder, salad oil, stock. Method of operation: (1) wash Mandarin Fish, remove bones and cut into fish shreds, add seasoning and starching, shred green and red peppers and set aside. (2) oil the fish with salad oil, remove, pan with spring onions and ginger, add stock seasoning, then thicken and serve. Features: fresh, tender and smooth.
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Comprehensive prevention and treatment of branchitis in soft-shelled turtle
Since the intensive culture of soft-shelled turtle, because the research of soft-shelled turtle disease lags behind the production, there are a variety of hidden dangers of diseases. Among them, the most harmful and difficult to treat soft-shelled turtle branchial inflammation has become more and more popular in recent years. The loss caused by this disease in my presence accounts for about 50% of the total loss every year. The disease occurs repeatedly in parent and adult soft-shelled turtles, and now it has spread to the whole production process. 1 the main symptoms and pathogens of the disease were systemic edema and paleness of the floor. Most of the body surface is finished
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