The breeding farms should be built in places sheltered from the wind and near the water. Cement ponds, earthen ponds and paddy fields will be cultivated.
Seedlings stocking seedlings are best derived from artificial cultivation and domestication of the fine dark yellow large beak. Choose the seedlings with strong physique, no damage, uniform specifications and uniform size, with 60-80 tails per kilogram. Put about 1 kilogram per square meter.
Feeding and management Astragalus is a carnivorous animal. In the wild state, it feeds on small fish, shrimp, and oysters. Under artificial breeding conditions, feeding with quails is better. It is also possible to feed jaundice with a compound feed. The best feeding season for Astragalus is April-September, and the amount of bait is 3%-5% of the fish's body weight. As the weight of jaundice grows, the amount of feeding will increase proportionally.
The most common diseases of yellow peony in the spring are endemic diseases: at the beginning of the disease, the tail of the jaundice is congested and inflamed, the muscles appear necrotic ulcers, the response is unresponsive, the tail is rotted badly, and finally it loses its ability to move and die. Control methods: Prevent damage to the seedlings during transportation. Stocking density should not be too large, pay attention to changing the source of clean water. With Quanling Quanchiposa spilled. Turnip disease. At the beginning of the illness, erythema of various sizes appeared on the surface of the jaundice, and the punctate congestion and inflammation were evident. On both sides of the abdomen, it was obvious that swimming was weak. In severe cases, the epidermis of the diseased punctate ulceration, irregularly shaped holes in the body, and viscera and death. Prevention and treatment: Thoroughly clear the pool with quicklime to eliminate pathogens, maintain good water quality, and prevent pollution. Every cubic meter of water in the spring is sprayed with 5-10 ml Quanchipue and used for 3 days as a course of treatment. Cold: Due to the large temperature changes in the spring, it is easy to cause colds in the jaundice. When changing the water, pay attention to the temperature difference can not be too large, can prevent the occurrence of the disease. Intestinal disease: sickness loss of appetite, slow swimming, dark body coloration, abdominal enlargement, anal swelling. Local or total intestinal congestion and inflammation. Prevention: Strengthen feeding, do not feed rotten bait. Each cubic meter of water body was soaked with 1-2 grams of bleaching powder or 10 grams of quicklime for 5 minutes, and was fed with squid to stand and stop mixed feed for 3 days.
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