Methods and techniques of koi culture, prospects and profits of koi culture

The methods and techniques of culturing brocade carp are as follows: tap water can be used for culture, and the suitable temperature is 22-28 ℃, natural baits include red worms, earthworms, bread worms, artificial diets include bred materials, germ families and Seyangdae, etc. The prospect of breeding koi: it has a certain market development prospect, not only edible but also ornamental value. The profit of cultivating koi: the net profit of one mu of koi is about 8500 yuan.

I. methods and techniques of culturing koi

1. Water quality

(1) Tap water is a commonly used body of water in koi culture, while well water, spring water and river water are rarely used to raise koi. No matter what kind of water quality it is, it contains a certain amount of chlorine, so it is necessary to remove chlorine before use. an appropriate amount of sodium thiosulfide can be put into the water and react with chlorine to form harmless sodium salts, or the water can be exposed to the sun for 2-3 days, or constantly inflated into the water. Drive the chlorine away.

(2) the water for raising koi needs to be colorless and transparent, and there is no turbidity, the suitable temperature is 22-28 ℃, the temperature difference should not exceed 2 ℃ as far as possible, otherwise it will directly endanger the health of koi, when the normal dissolved oxygen content reaches 5-7mg/L, it is more suitable for brocade carp culture.

(3) Koi is suitable for growing in weakly alkaline water. The alkalinity of vegetables in Yunnan is normal when the alkalinity is about 6-8.5. the content of ammonia and nitrogen in the water should not exceed 0.1mg/L, otherwise it will threaten the health of koi. Ammonia nitrogen and other chemicals are harmful to aquatic organisms, and high content will directly cause the death of koi.

2. Filtering system

The water body of koi culture is not like the water body of nature and has the function of self-purification, so when raising koi, a complete filtration system is needed to circulate the whole water body, which is conducive to maintaining the whole living environment of koi. Generally, a set of perfect filtration system includes plant filtration, chemical filtration, physical filtration and biological filtration.

3. Bait and feeding

Natural baits include red worms, earthworms, bread worms, etc., and artificial baits include breeding materials, germ families and Seyang materials, etc., and the "four principles" should be followed when feeding: timing, fixed point, quality and quantity, so that koi can develop good eating habits.

4. Feeding and management

During the period of culture, attention should be paid to feeding koi, observing the activities of koi, adjusting and testing water quality, and paying attention to the breeding and management of koi.

2. The prospect of culturing koi

1. Koi has a certain market development prospect, because there are many kinds of koi, and many koi are very beautiful in appearance, not only edible but also used for ornamental use, followed by its high nutritional value. At the same time, nutrients are easily absorbed by the human body.

2. Koi has high reproductive ability, strong adaptability to the environment, easy to feed and high yield. according to the current market situation and economic benefits of koi, its profit return is still relatively good.

III. Profits from the culture of koi

1. The rent for raising an acre of koi pond is about 800-1000 yuan, and about 1500-2200 fish fry are needed, so the cost of fish fry is about 30-2200 yuan, the feed cost of breeding is about 3000 yuan, and the cost of water, electricity, fish medicine and other expenses is about 5500 yuan. Then the total cost of cultivating one mu of carp is about 9500 yuan.

2. The yield of one mu of koi is about 3000 jin. According to the current market wholesale price of 6 yuan / jin of koi, the harvest is about 18000 yuan per mu, and the total cost of breeding is 9500 yuan. After deducting the cost of breeding, the net profit of cultivating one mu of koi is about 8500 yuan.