With the change of seasonal temperature, the management methods in koi fish are different.

In spring, when the weather is warm and cold, koi fish begins to recover from hibernation, and the breeding moves from indoor to outdoor, but special attention should be paid to the sudden cooling, covering the film in time to keep the water temperature stable; Plant bait is the main food, and the dosage is gradually increased from less to facilitate the digestion and absorption of koi fish.

When the weather is hot in summer, it is necessary to cover the plastic sunshade net to prevent direct sunlight, and it is most appropriate to reduce the sunlight illumination from 8000 ~ 12000 lux to 5500 ~ 5800 lux.

In autumn, the weather is less rainy and sunny, and the water temperature drops obviously, which is most suitable for the growth of koi fish and can increase the proportion of animals (protein), such as silkworm chrysalis. Increase investment and promote rapid growth.

In winter, the weather is cold. When the temperature drops to 0℃, koi fish should be moved to an indoor fish pond for wintering, and the indoor water temperature should be kept at 2℃ ~ 10℃. Pay attention to keep warm, feed properly and prevent diseases. The wintering period in koi fish is 1 1 to March of the following year.

Second, koi fish's feeding methods:

1. In order to maintain the water quality in koi fish, the requirements for water quality are not high, but there is a lot of excrement every day, so the frequency of changing water is once a week, and one-third to one-half of the water is changed at a time. You can't change too much water at a time, which will lead to the instability of the ecosystem in the fish tank, and koi fish is easy to adapt.

2, the fish tank is often cleaned. If you buy an automatic fish tank, it has a built-in cleaning system, and you can change the cotton filter or clean it once every half month.

3. Pay attention to aquatic plants in the water. Now those aquatic plants are very expensive. If koi fish is raised, the aquatic plants will be eaten soon, and the loss outweighs the gain. Moreover, it is easy to pollute the water quality by eating the remaining residue. My method is to raise aquatic plants in a separate basin and regularly put them into a fish tank to supplement nutrition.

4. Pay attention to the water temperature. Koi fish can survive the cold winter, but its vitality is poor in winter. If the weather is particularly cold, pay attention to put some nutritious fish feed to supplement calories.

Extended data:

Growth habit

Omnivorous koi fish is docile by nature, likes to live in groups, is easy to raise, and has strong adaptability to water temperature. It can survive in the water temperature environment of 5-30℃, and the growth water temperature is 2 1-27℃.

Besides the water temperature and the richness of food will affect the growth rate of koi fish, the growth of female and male fish is also very different. The age of koi fish, like most fish, determines the number of scales, which indicates the age of koi fish.

population distribution

Koi fish is the largest producer in Japan, with the most mature breeding technology and equipment, and a large number of high-quality and pure koi fish, which are sought after by lovers all over the world. Every year, they go to Niigata, the birthplace of Hiroshima and koi fish, to look for Ming carp.

In recent years, China, Malaysia, Singapore, Israel and other emerging countries have sprung up suddenly, and their breeding level and product competitiveness are almost equal to those of Japan, which has strongly impacted the monopoly market structure of Japan.

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