Prevention and treatment of abdominal distension and ulceration of Pseudosciaena Crocea
(1) it is reported in Japan that the pathogen is Vibroalginolyticus, but the other is Edwardsiella.
(2) the gastric sac of symptomatic diseased fish was particularly dilated, and the dorsal abdominal wall of some fish was expanded and ruptured, and the whole gastric sac was separated from the fish body. A large number of diseased fish fry floated on the surface of the water and could not be fed. After a few days of spinning, they sank and died. 15-20-day-old larvae were the most likely to get sick and the death peak appeared.
(3) to increase the amount of water exchange and improve the breeding environment, it is not suitable to feed Artemia nauplii alone, but to feed copepods early, strengthen the nutrition of larvae and juveniles, and strictly control the water quality.
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Fried bean curd and fish
Dish name: fried tofu fish main ingredients: 500 grams of tofu fish, 50 grams of minced garlic, 150 grams of cornflour, 25 grams of fish sauce, 7.5 grams of monosodium glutamate, 0.1 grams of pepper, 1 gram of sesame oil. Practice: 1. First, remove the head and intestines of the tofu fish, wash them and freeze them in the refrigerator, make the fish body slightly hard, remove the fish bones with a knife, cut each into two to three sections, serve in a large bowl, add fish sauce, cornmeal, monosodium glutamate, pepper and sesame oil and mix well for use. 2. Heat the tripod and add a small amount
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Prediction and Rescue of Fish flooding Pond
The temperature is high in summer and autumn, and the microbial activity is active. if the amount of fertilization and feeding in the fish pond is large, it is easy to cause the fish to float due to hypoxia. If it is not rescued in time, the fish will suffocate to death. Therefore, at ordinary times, it is necessary to strengthen the management of fish ponds, do a good job in forecasting, and rescue the phenomenon of floating head of fish in time to prevent fish flooding in the pond. Signs in front of the floodpond in the afternoon of hot weather, if it is found that a large number of bubbles are produced by organic fermentation in the pond, covering 1 / 2 of the water area of the pond, it can be heard far away from the pond.
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