CATDOLL : CATDOLL: How to farm brook grouper?

How to farm brook grouper?

Breeding technology of stream grouper

Breeding conditions:

1. The water source requires unpolluted stream water, which should be introduced into the pond through channels, with the water entering from one end of the pond and exiting from the other end, with flowing water aquaculture being the main method.

2. The pond size is generally 50-100 square meters, with a water depth of about 1 meter. It is better to put some gravel in the pond so that the grouper can hide. You can also build a shed in a corner of the pond to provide shade to prevent the strong light in the summer from affecting the growth of the grouper.

Farming management:

1. Artificial breeding requires feeding. You can feed shrimp bait or carp bait with high protein content. The protein content is required to be more than 30%. The amount of feeding depends on the water temperature, the size of the fish, and the weather conditions. Generally speaking, it is best to feed until the fish are 80% full. Feeding method: After the total amount is determined, feed in small amounts and multiple times. Feed slowly and feed after the grouper has finished eating, because grouper does not like to forage for bottom-sinking bait.

2. Daily water management requires clear water, with flowing water as the main feature. In summer, when the light is too strong, shade should be provided in time. When it rains heavily, the water inlet should be closed to prevent muddy water from rushing into the pond and prevent the grouper from escaping.

3. Grouper grows very fast. Generally, it can be put on the market after 6 months of breeding. The individual weight can reach 20 per kilogram. After one year of breeding, the individual weight can reach 10 per kilogram.

Breeding of brook grouper fry

1. Requirements for the cultivation pool

1. Land cultivation

Because freshwater grouper fry have the habit of roaming the walls, the uneven bottom and walls of the earthen pond have a concealing effect, so the area can be slightly larger, but generally not more than 1 mu is appropriate. The water depth is 1.0~1.5 meters, and a few aquatic plants can be planted in the pond (bottom and surface aquatic plants are both OK, such as Vallisneria, water peanuts, water hyacinth, etc.).

2. Cement pool cultivation

The area is 30~80m2, and the water depth is about 1.2m. You can choose a square or round pond, which requires easy drainage and no dead corners.

2. Clean the pool and test the water

Before stocking the fry, drain the pond water, clean and disinfect the pond thoroughly with quicklime, add water 2-3 days after cleaning the pond, and filter the water with a 40-mesh silk screen to prevent enemies from entering the breeding pond. Fry can be stocked 7 days after cleaning the pond and adding water, and test the water before stocking. Before stocking, add 200-250 kg of fermented organic fertilizer per mu to cultivate zooplankton, so that the fry can eat natural bait when they enter the pond.

3. Determine stocking density

The stocking specifications in the same pond should be uniform and of the same size. The stocking density is generally around 100 fish/m2.

4. Bait

1. Fry

The main food for the newly released fry is zooplankton. At this time, fertilizers should be applied according to the water color to cultivate zooplankton such as rotifers and water fleas. Both organic and inorganic fertilizers can be applied to keep the transparency at about 25 cm. If the fry is more than 1 cm, soy milk can be added. After 15 to 20 days of cultivation, the fry will reach more than 2 cm.

2. Inch fish

When freshwater grouper fry grows to more than 2 cm, their diet begins to change, and fixed-point feeding should be adopted at this time. They can be fed with fish paste, earthworms, fly maggots, etc. I feed them with dry nematodes, which grow faster. After 3 to 5 days, they can be fed with artificial feed, and then the proportion of artificial compound feed can be gradually increased until all artificial compound feed is used. The daily feeding amount is about 20% of the fish body weight, and feeding is done 3 times a day.

3. Artificial compound feed

The protein content of artificial compound feed is 35%~40%, animal protein should be more than 25%, and plant protein raw materials can be added. The general feed coefficient can reach between 0.8~1.2.

5. Daily Management

1. Timely distribution

Fry have the habit of eating smaller ones and killing each other, so when there is a big difference in growth size, they should be screened in time, graded and raised separately. The size of fry in the same pond should be consistent to avoid affecting the survival rate of fry.

2. Regulate water quality

During the fry cultivation process, the remaining feces and bait due to fertilization and feeding can easily deteriorate the water quality. For this reason, the cement pond should be changed once every 3 to 5 days, and the amount of water changed each time should be enough to drain all the dirt from the bottom of the pond; the land water should be changed 10 to 20 cm per week.

3. Disinfection

After the net is pulled and screened, disinfection must be carried out. The fish body can be soaked in 5% salt water for 15 to 20 minutes, or halogen disinfectant can be sprayed throughout the pond.

4. Patrol the pond

Observe the fish's feeding, activities, water color changes, etc., so as to adjust the amount of feed in time and do a good job in fish disease prevention and control.

After one month of cultivation, the freshwater grouper can be put into the pond for breeding when it grows to about 10 cm. After 5 to 7 months of breeding, it can reach 300 to 400 grams.

The creek grouper is a fish of the Cypriniformes family. Its scientific name is Glossylips. It likes to live in clear, pollution-free creeks with gravel bottoms and fast currents. It likes to forage in shallow waters in spring and summer, and spends the winter in deep pools in autumn and winter. It feeds mainly on benthic algae, and can also eat artificial bait.

How effective is it to use red worms when fishing for crucian carp and carp in the wild in autumn and winter?

The effect of using red worms to fish for crucian carp in the wild in autumn is very good. Perhaps for most anglers, they have used red worms to fish for crucian carp, but have never used them to fish for carp. In the actual fishing process, red worms can also be used to fish for carp. In terms of living habits, carp is also an omnivorous fish species. In addition to eating grains, they also eat snail meat, silkworm pupae, red worms, etc. as their food sources. However, in autumn, the temperature begins to drop. When we use red worms to fish for crucian carp and carp in the wild, there are some details that deserve our attention. Let's take a look at it together, hoping to be helpful to everyone.

The impact of weather on fish Before fishing, we need to have a concept in mind, that is, after the arrival of autumn, the temperature begins to gradually drop, and the fish are also affected accordingly. Generally speaking, when the temperature is stable at 20℃~28℃, the fish in the water are most active. When the temperature is lower than this temperature range, their activity level and appetite will be significantly reduced. At the same time, they will prefer fishy food when seeking food. In comparison, crucian carp and carp are different.

1. Crucian carp Crucian carp is a species with high cold resistance, so they can be fished in China all year round, but they are also affected by the weather, and their activity frequency and appetite will gradually decrease. However, red worms are rich in animal protein and are also a food source that crucian carp need. When we use red worms as bait for fishing, crucian carp will still swallow the bait and bite the hook.

2. Compared with crucian carp, carp's cold resistance is relatively weak, but they are not afraid of red worms with high animal protein content. Red worms are bright red in color and can remain active after entering the water. They are constantly shaking in the water, which can effectively stimulate fish to swallow bait and bite the hook. But when the temperature is very low, carp are mostly active in a small area in deep water, so it becomes relatively difficult for us to catch them.

When we choose red worms as bait, fresh red worms are the best choice. When we hook the red worms, it is best to use the fishhook to directly pass through the head of the red worm. The purpose of doing this is to prevent the red worm from being punctured and to ensure the freshness of the red worm. During the fishing process, we can also gently lift the fishing rod to make the red worms in the water more "fresh", so as to achieve a better effect of attracting fish.

Using bloodworms works well because it adds bright color and scent, and fish are more likely to take the bait.

The effect is very good. Fishing with red worms is the same as using earthworms, and can attract many fish to take the bait.

It is very good to use red worms when the temperature is low. Fish need a lot of protein to prepare for the winter. Fish love to eat red worms and they are quick to be hooked. They need to use a lot of force when eating and the floating shake is also obvious.