How to Raise Koi Fish? Detailed Guide to Breeding Methods, Techniques, Prospects and Profits

AbstractMethods and techniques for breeding koi fish: tap water can be used for breeding, the suitable temperature is 22-28°C, natural baits include bloodworms, earthworms, mealworms, etc., and artificial feeds include growth feed, germ bran feed and color-enhancing feed, etc. Prospects for breeding koi fish: it has a certain market development prospect, and is not only edible but also has ornamental value. Profits from breeding koi fish: the net profit from breeding one mu of koi fish is about 8500 yuan.

I. Methods and Techniques for Breeding Koi Fish

1. Water quality

(1) Tap water is a relatively commonly used water body in koi fish breeding, while well water, spring water and river water are rarely used by people to raise koi fish. No matter which type of water quality it is, it contains a certain amount of chlorine, so chlorine removal must be carried out before use. An appropriate amount of sodium thiosulfate can be put into the water to react with chlorine and generate harmless sodium salt, or the water can be exposed to sunlight for 2-3 days, or air can be continuously pumped into the water to drive off the chlorine.

(2) The water for raising koi fish needs to be colorless and transparent, with no turbid matter, and the suitable temperature is 22-28°C. Sudden changes in water temperature should be avoided as much as possible, and the temperature difference must not exceed 2°C, otherwise it will directly harm the health of koi fish. Generally, when the normal dissolved oxygen level reaches 5-7mg/L, it is relatively suitable for breeding koi fish.

(3) Koi fish are suitable for growing in weakly alkaline water. In Yunnan, an alkalinity of about 6-8.5 is normal. The ammonia and nitrogen content in the water body must not exceed 0.1mg/L, otherwise it will threaten the health of koi fish. Chemical substances such as ammonia nitrogen are harmful to aquatic organisms, and excessive content will directly cause the death of koi fish.

2. Filtration system

The water body for breeding koi fish is not like natural waters, which have self-purification functions. Therefore, when raising koi fish, a complete filtration system is needed to circulate the entire water body, which is beneficial for maintaining the entire living environment of koi fish. Generally, a complete filtration system includes plant filtration, chemical filtration, physical filtration and biological filtration.

3. Bait and feeding

Natural baits include bloodworms, earthworms, mealworms, etc., and artificial feeds include growth feed, germ bran feed and color-enhancing feed, etc. When feeding, the “four fixed principles” need to be followed: fixed time, fixed location, fixed quality and fixed quantity, so that koi fish develop good eating habits.

4. Feeding management

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

II. Prospects for Breeding Koi Fish

1. Koi fish have a certain market development prospect, because there are many types of them, and many koi fish are also very beautiful in appearance. They are not only edible but can also be used for ornamental purposes. Secondly, koi fish have high nutritional value, and the nutrients are easily absorbed by the human body.

2. Koi fish have high reproductive capacity, strong adaptability to the environment, are easy to raise and have high yield. According to the current market conditions and economic benefits of koi fish, the profit return is still relatively good.

III. Profits from Breeding Koi Fish

1. The rent for breeding one mu of koi fish pond is about 800-1000 yuan, and about 1500-2200 fry need to be stocked, so the cost of fry is about 30-200 yuan, the cost of breeding feed is about 3000 yuan, and the cost of water and electricity, fish medicine and other expenses is about 5500 yuan, so the total cost of breeding one mu of koi fish is about 9500 yuan.

2. The yield from breeding one mu of koi fish is about 3000 jin. Calculated according to the current market wholesale price of koi fish at 6 yuan/jin, about 18000 yuan can be harvested per mu. With the total breeding cost at 9500 yuan, after subtracting the breeding cost, the net profit from breeding one mu of koi fish is about 8500 yuan.