Farming species red fins?
The red fins, commonly known as prickly ash, white knives, belong to the genus Polygonaceae, subfamilies, and genus, have high economic value, and their development prospects are very promising. 1.1, morphological characteristics Red fins, dorsal fins III-7; anal fins III-25-28; pelvic fins I-8. Side of the red scales 63-69. Body side flat, head rear bulge. From the pectoral fin to the anus with a shuttle. Tail handle short. Upper mouth, cracked near vertical, jaw thick, protruding before the upper jaw. The front of the lateral line is slightly curved and the back is straight. Dorsal fins with smooth spines. Infant fin base minister. The dorsal side of the body is gray, ventral silvery white, dorsal fins, caudal fins grayish, anal fins reddish orange. 1.2. Habits and habits Hi is inhabited in lush lakes and is usually in slow-flowing water in rivers. It has a good adaptability and can survive PH10 in water with a high alkalinity. Slower growth. Carnivorous. Juveniles feed on larvae, copepods, and aquatic insects. Adult fish feed on fish, shrimp, insects, larvae, and horns. Age 2-3 mature. Breeding May to July, viscous eggs, eggs adhere to the development of the stems and leaves of aquatic plants. 1.3 Distribution and Economic Value Distribution of the country's various water systems, Poyang Lake in our province also has a large number of distribution in the northeast. The red fins are white and tender, and they are delicious and delicious. For a long time, the red fins that have been sold in the market have always come from rivers, lakes and natural fishing and cannot meet market demand. In recent years, with the mature technology of artificial reproduction, the prospects for artificial breeding of red fins are very promising. Can be raised, mixed and cage cultured. Because its diet is partial carnivorous, 32-40% higher protein feed should be selected.
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