Loach is also called fish loach. Loach fish is called the ginseng in the water. It lives in lakes and ponds. It is a fish with high nutritional value and a special kind of loach. What are the common species of loaches? How much do seedlings cost per pound? How much money can you make by raising a child for one year? What are its common diseases and their prevention and treatment? From the Jiangxi Fish Fry Base, we learned that the general price of large loach fry is: 1-2 cm 400 yuan/10,000 fish, 3-5 cm 1,000 yuan/10,000 fish, and 5 cm or more 1,200 yuan/10,000 fish.

What are the common species of loach?

1. True loach

Generally called loach. The body is long cylindrical, the tail is flattened laterally, and the mouth is lower and horseshoe-shaped. There are 5 pairs of oral palps, 3 pairs of upper jaws, which are larger, and 2 pairs of lower jaws, one large and one small. The tail fin is round with small scales and is buried under the skin. The back and back of the body are gray-black with small black spots. The lower half of the body side is white or light yellow, and there is a large black spot above the base of the caudal peduncle. There is more mucus on the body surface, the head is pointed, the snout protrudes forward, and the eyes and mouth are small.

2. Large-scaled loach

Distributed in the middle and lower reaches of the Yangtze River and its affiliated water bodies. The body shape resembles a loach. 5 pairs required. The eyes are covered with membranes. No under-eye thorns. The scales are large and buried under the skin. The skin folds at the caudal peduncle are well developed and connected to the caudal fin. The length and height of the caudal peduncle are approximately equal. Caudal fin rounded. The anus is near the origin of the anal fin.

3. Chinese loach

Distributed in the middle and upper reaches of the Yangtze River. Also known as steel loach. The snout is long and pointed. Requires 3 pairs. The lower jaw has a pair of button-like protrusions. The spines under the eyes are bifurcated and end beyond the back edge of the eyes. Cheeks without scales. The anus is near the origin of the anal fin. The caudal peduncle is lower. It inhabits the slow water area of ??river sections with gravel bottoms and often moves at the bottom.

At present, there are many ornamental loaches in China. Their body shape is the same as that of ordinary loaches, but their colors are more colorful. They are suitable for home breeding and viewing.

How much money can you make from raising loaches in a year?

1. Fish fry cost: 3500 yuan is required for one acre of loach fry with a size of 35 cm.

Feed cost: Loach feed can be special feed or ordinary fish feed. According to the feed ratio of loach, the feed cost of one pound of loach is about 5 yuan. One acre of real estate requires 25,003,000 pounds of loach. The feed cost is around 10,000 yuan.

Site rent: In rural areas, the annual rent per mu of breeding land is about 400,600 yuan, and the median value here is 500 yuan.

Other expenses: disease prevention and control drugs, water and electricity bills, etc., totaling 1,000 yuan.

Total cost: 15,000 yuan

2. Sales revenue and profit

Assume that one mu of breeding land produces 2,500 catties of loach, and the current market price is 15 yuan/catty. By selling, you can get an income of 37,500 yuan. After deducting the cost of 15,000 yuan, the profit is 22,500 yuan. Normally, the loach breeding cycle is half a year, so two seasons can be raised in one year, and one acre of land can generate a profit of about 45,000 yuan a year.

If the breeding area is large, it will not be a problem to earn 100,000 yuan per year.

What are the common diseases and prevention of loach?

1. Bubble disease

Cause: The pool water is oversaturated with a certain gas, usually dissolved oxygen, methane, hydrogen sulfide, ammonia or nitrogen. These gases will penetrate into the blood vessels of the fish through the gills and skin, causing the gas in the blood to become supersaturated. Too much gas will come out to form bubbles, blocking the blood flow and causing a large number of fry to die.

Symptoms: Loach floats on the water surface, and its belly bulges like bubbles.

Prevention and control: Strengthen daily management to prevent and control the deterioration of water quality. When the disease occurs, add new water immediately, use 46 kilograms of salt per acre to dissolve the water, and then sprinkle the entire pond.

2. Saprolegniasis

Cause and symptoms: Caused by saprolegniasis. The body surface of the sick loach is covered with white flocculent hyphae, and it swims slowly. It will become weak and die over time. The disease is prone to occur in spring.

Prevention and control: Use Mu Mu An 100 ml/mu to spread throughout the pond. If the condition is serious, use it once every other day.

3. Printing disease

Cause and symptoms: Caused by Aeromonas hydrophila. The lesions are swollen, red, and round in shape, and the affected areas are mainly on both sides of the caudal stalk. Popular in 79 months.

Prevention and control: Sprinkle 100-133 grams of bromine, chlorine, and hyacinth powder/mu throughout the pond, once a day, for 2 days. Orally take Yuflucon at 0.10.15 grams per kilogram of fish body weight, once a day for 35 days.

4. Trichozoa

Causes and symptoms: The diseased loach has a thin body, often floats on the water, feels uneasy, or spins on the water, has increased mucus on the body surface, and has wheels on microscopic examination insect.

Prevention and control: When there is too much organic matter in the pond, first use a three-effect bottom filter to purify the water quality, and then use a wheel cleaner (100/bottle). Use 1.5 acres per bottle, mix it with water and then splash it over the entire pond. Use twice in a row when the condition is serious.