Koi is a large-scale noble ornamental fish, with red, white, yellow, black, blue and purple colors. It is more and more popular with consumers because of its gorgeous crystal color, beautiful and graceful posture, and gorgeous and colorful stripes. favorite. A brief description of the Koi breeding techniques is as follows:
Koi has strong adaptability to the environment, but it cannot resist the rapid changes in water temperature. When the temperature suddenly drops or rises by 2°C to 3°C, it is easy to get sick. If the temperature rises and falls by 7°C-8°C, then the fish will not feed at the bottom of the water. If the temperature is suddenly changed, Koi will even die immediately. The optimum temperature of Koi's life is 20°C-25°C. In this water temperature, Koi is suitable for living in a slightly alkaline environment with low hardness. Among them, spring water is the best, and it contains various mineral elements and other ingredients, which can make the color of Koi more vivid.
Breeding koi should be selected as a brood with rounded, round head, long body, no deformity, bright color, uniform color, well-proportioned, non-damaged and disease-free fish. From the outside, the female body is short and full-bodied, the abdomen is inflated, and the end of the pectoral fin is rounded. The male body is lean and long, with a slightly pointed tip of the pectoral fin. There are several white “chasing stars†on the first ray of the pectoral fin and the lid of the fin. The breeding season of golden mullet fish is similar to that of common bream. It is usually from April to May each year. When the water temperature is stable above 16°C, the female and male koi can be singled out in a ratio of 1:2 and put into ready. In the pool, pre-disinfected fish nests are placed in the pool to allow them to spawn. After observing their spawning, the brooders are caught and the fish nests are left in the pool for hatching. The fry hatches after 5 days and 7 days. Cultivate.
In the courtyard, hotel, directly for the purpose of viewing, cement pool can be built aquaculture, the pool depth of 0.6 meters -0.8 meters is appropriate, single-nutrition method, the density can be slightly larger, can be stocked 3 to 5 per square meter Koi, the pool configuration sprinkler facilities or micro-flow conditions of circulation, fed twice a day, can be fed to raise the special ornamental fish breeding materials, breeding materials, promote its color, to form a perfect body.
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