CATDOLL : CATDOLL: Fish body length ratio? What fish can catfish be raised together with?

1. What is the body length ratio of fish?

The body length of winter-age fish is about 340 mm and the weight is about 750 grams; the body length of 2-winter-age fish is about 600 mm and the weight is 3.5 kg; the body length of 3-winter-age fish is about 680 mm and the weight is about 5 kg; the body length of 4-winter-age fish is about 740 mm and the weight is about 7 kg; the body of 5-winter-age fish can reach about 780 mm and weigh about 7.5 kg; the largest individual can reach about 40 kg.

Grass carp grows fast and is large, with the largest individual reaching 40 catties. The meat is tender and delicious. Every 100 grams of edible part contains 15.5-26.6 grams of protein, 1.4-8.9 grams of fat, 83-187 kcal of calories, 18-160 mg of calcium, 30-312 mg of phosphorus, 0.7-9.3 mg of iron, 0.03 mg of thiamine, 0.17 mg of riboflavin, and 2.2 mg of niacin.

2. What fish can be raised together with catfish?

Catfish is a carnivorous fish that lives at the bottom of the water layer. A catfish weighing 500 grams can swallow a small crucian carp, so it is best not to raise them together.

3. Which edible fish can be raised together?

1. Mixed culture of silver carp and bighead carp

Silver carp and bighead carp both live in the middle and upper layers of the water body. Silver carp feeds on phytoplankton, bighead carp feeds on zooplankton, and zooplankton eats phytoplankton. Therefore, when silver carp and bighead carp are cultured in the same pond, the relationship between them must be considered. If the stocking amount of silver carp and bighead carp is equal, the growth and reproduction of zooplankton will be restricted due to the large amount of phytoplankton swallowed by silver carp, which will affect the growth of bighead carp; if the stocking amount of bighead carp is too small or silver carp is cultured alone, not only the zooplankton resources cannot be utilized. It is also not conducive to the growth of phytoplankton. In the co-culture of silver carp and bighead carp, it is generally more appropriate to raise 1 bighead carp of the same size for every 4-5 silver carps.

2. Mixed culture of grass carp and bream

Grass carp and bream both live in the middle and lower layers of the water body, and usually feed on grass. In order to avoid competition for food and promote growth, it is usually adopted to increase the size of grass carp and increase the size of bream. The mixed breeding ratio is 4-5 breams of about 10 cm for every 0.5 kg of grass carp seeds. This can not only avoid competition for food, but also make full use of the bream to eat the leftover bait of the grass carp, which plays a role in cleaning the feeding area.

3. Mixed breeding of silver carp and carp

Black carp often live at the bottom of the water and mainly feed on shellfish. Since black carp are relatively quiet when eating, carp are more likely to snatch food. In order to avoid this contradiction, large-sized black carp seeds can be used. Generally, 0.5 kg of large-sized black carp seeds are stocked, and a 10 cm carp is raised.

4. Mixed culture of tilapia, white crucian carp, silver carp and bighead carp

Tilapia feeds on algae and leftover bait, while white crucian carp is an omnivorous fish that also feeds on plankton. When mixed with silver carp and bighead carp, there is a certain contradiction in the bait. Generally, the first half of the year focuses on the feeding and management of bighead carp and silver carp. In June and July, fish that meet the market specifications are caught in batches to free up water and bait for the growth of tilapia and white crucian carp.

5. Mixed breeding of “food fish” and “fat fish”

Grazing fish such as silver carp and grass carp require fresh water, but due to their large food intake, they excrete a lot of feces, which can cultivate a large amount of plankton and easily make the water rich. However, fat fish such as silver carp and bighead carp can eat plankton and keep the water fresh. Therefore, raising grazing fish and fat fish in the same pond can greatly increase production. Generally, 0.5 kg of "grazing fish" can bring out 0.2-0.25 kg of "fat" fish. When arranging the proportion of these fish in mixed culture, you can refer to this data to determine the stocking amount of each.

6. Mixed culture of fish and turtles

Stocking fish in a turtle pond can not only make full use of the water surface of the pond, but also achieve the effect of symbiosis and mutual benefit.

The pond for mixed fish and turtle breeding is basically the same as that for ordinary fish ponds, with an area of ​​1/15 hectare to 2/15 hectare in general, and can reach 3/15 hectare to 5/15 hectare for large breeding. The pond requires a quiet environment, clean water, sufficient sunlight, and a water depth of 2-2.5 meters. A sun terrace 10-30 cm above the water surface and an area of ​​10-15 square meters is built in the northwest and southeast of the pond for the turtles to rest and bask. In order to prevent the turtles from escaping, a 1-2 meter high wall should be built on the bank of the pond, and fish interception equipment should be installed at the inlet and outlet of the pond.

There should be a certain ratio for fish and turtles to be mixed. Generally speaking, in the adult and brooding ponds, the stocking amount of fish per mu of water surface is: 200-250 silver carp of 15 cm in length, 40-45 bighead carp, 30-50 bream of 12-13 cm, and 120 carp. The stocking amount of turtles is: 5-10 young turtles of 10-12 grams per square meter, or 1-2 turtles of more than 100 grams.

In fish and turtle mixed culture ponds, daily work such as feeding, pond inspection and disease prevention should be done according to the living habits of the fish and turtles. It is generally not suitable to breed fish in juvenile and young turtle ponds. In addition, turtles should be raised in separate ponds before wintering.

4. What fish can be raised together with golden toads?

When raising golden frogs with fish, you need to pay attention to the size of the fish. Otherwise, the golden frogs will bite or eat the fish. For example, they can be raised with koi, but not with small goldfish.

Golden frogs generally do not eat fish when they are young, but they become very ferocious when they grow up. Adult golden frogs can grow to 6 to 13 cm, so the fish raised with golden frogs must be at least 13 cm long.

The golden frog is very greedy and needs to be fed 2 to 3 times a week. It can be fed with water worms or pork liver slices, or small fish, such as guppies, moonfish, zebrafish, and cichlids.

5. Can fish be raised together with shrimps?

Can't

For example, crystal shrimp and mouse fish cannot be mixed together. Although their living environments are similar to some extent, crystal shrimp are not suitable for living with mouse fish, which are strong competition for food, and it will affect their growth. Although mouse fish are small in size, they are very lively and will cause harm to young crystal shrimp.

6. What is the ratio of fish and shrimp in mixed farming?

1. Mixed culture of whiteleg shrimp and freshwater silver pomfret. Generally, 40,000 to 60,000 whiteleg shrimp fry, 150 to 200 freshwater silver pomfret fingerlings, and 100 silver carp fingerlings are placed per mu.

2. Mixed culture of whiteleg shrimp and desert flounder. Generally, 40,000 to 60,000 whiteleg shrimp fry, 100 to 150 desert flounder fingerlings, and 100 silver carp fingerlings are placed per mu.

3. Mixed culture of whiteleg shrimp and tilapia. Generally, the stocking density of whiteleg shrimp is 40,000 to 60,000 per mu, and the individual length is 0.8 to 1 cm. Select high-quality fish species and reasonably control the density, generally 200 to 400 per mu.

7. What is the ratio of mixed breeding for map parrots?

The ratio is 4:1-5:1.

1. The principle of mixed breeding: there should be more parrot fish and fewer map fish, because map fish compete fiercely for food.

2. Parrot fish like to drive away other types of fish. When they are hungry, they will eat small fish and shrimps. Therefore, they cannot be raised together with fish that are too small.

3. The growth of the map fish is faster than that of the parrot fish. You can buy 5-8 map fish that are 2 cm smaller than the parrot fish. When the map fish grows up, the parrot fish will also grow up.

8. What is the ratio of silver carp and bighead carp mixed farming?

(1) Eutrophic reservoirs: fish productivity is 30-40 kg/mu, stocking density is 110-140 fish/mu, the proportion of silver carp is 35-40%, the proportion of bighead carp is 50-55%, and the proportion of grass carp, common carp, bream, and silver carp is 5-15%.

(2) Mesotrophic reservoirs: fish productivity is 20-30 kg/mu, stocking density is 80-110 fish/mu, the proportion of silver carp is 30-35%, the proportion of bighead carp is 55-60%, and the proportion of grass carp, common carp, bream, and silver carp is 5-15%.

(3) Oligotrophic reservoirs: fish productivity is 15-20 kg/mu, stocking density is 50-80 fish/mu, the proportion of silver carp is 25-30%, the proportion of bighead carp is 60-65%, and the proportion of grass carp, common carp, bream, and silver carp is 5-15%.

9. What is the optimal ratio for mixed breeding in fish ponds?

1.

For ponds dominated by silver carp, the stocking rate of silver carp can generally account for 60%-65%, with 10% bighead carp and 30% grass carp; or 10% bighead carp, 10% grass carp and 20% carp; or 15% bighead carp and 70% grass carp.

2.

In ponds dominated by bighead carp, bighead carp can be stocked at 60%, with grass carp at 20% and carp at 20%.

3.

For ponds dominated by grass carp, 60% grass carp can be stocked, 5% silver carp or bighead carp each, and 10% carp; or 30% silver carp, 5% bighead carp and 5% carp each can be stocked.

4.

In ponds dominated by carp, carp accounts for 60%, silver carp 30%, grass carp and bighead carp 5% each; silver carp and bighead carp 40% mixed culture.

10. What is the ratio of tilapia and shrimp in mixed culture?

The ratio of tilapia and shrimp should be 1:2~3. Because shrimp is a bottom scavenger, it can help clean up food residues and debris in the fish tank, while keeping the water clean, and is a good companion for tilapia. Tilapia is an ornamental fish that swims in the middle and upper layers, and it will not hurt or interfere with shrimp when mixed with it. In the process of mixed culture, it is necessary to pay attention to the number of shrimps not being too much, so as not to occupy the swimming space of tilapia. At the same time, the amount of feed for tilapia needs to be controlled to avoid overfeeding and deterioration of water quality. Mixing tilapia and shrimp in the right proportion can make the fish tank environment healthier and more beautiful.