CATDOLL : CATDOLL: Is the yellow croaker farmed or wild? How do wild fish breed in farmed form?

1. Is the yellow croaker artificial or wild?

Of course there are artificial and wild ones, including chickens, ducks, geese and dogs.

2. How are wild fish bred using farmed fish?

First of all, you need to choose some younger fish weighing about 1-3 pounds as broodstock. When breeding, try to choose a larger area, and the water quality must be better. The dissolved oxygen in the water should be relatively high so that they can grow normally. During the breeding process, they can be raised together with other species of fish. The daily feeding amount should be 4% of the broodstock's body weight, and intensive feeding should be carried out about one month before the broodstock lay eggs.

After finishing the broodmare work, we need to prepare for selecting the fish species. First of all, we need to distinguish the sexes of the sea bass. How should we distinguish the sexes in the process of distinguishing? So some experienced breeders will judge based on the facial features and some physical characteristics of the sea bass. First of all, we need to know what the female fish looks like and what characteristics it has. According to our daily observations, we find that the female fish is relatively small and short. Relatively speaking, the whole fish appears to be thicker, especially in the spawning season. We can find that the belly of the female fish appears to be larger and softer, and it is more elastic when pressed. The urogenital papilla appears to be slightly more convex and relatively rosy. It can be clearly seen that there are two holes on it. These two holes are the openings of the fallopian tube and ureter respectively. The male fish is easier to identify. The whole body of the male fish looks thinner. During the breeding period, the belly will not swell and there will be no bulge. The urogenital papilla appears sunken. The female fish has two holes, while the male fish has only one hole.

The second thing is to build a spawning place. We can trim the spawning place into a cement floor. The specific area should be determined according to the scale of reproduction. A spawning nest needs to be built around the pond, which is closed on all sides. A small stone needs to be placed in the middle of the mesh. When releasing the fish, it is necessary to disinfect or remove the alkali first. If the alkalinity is too high and it is not disinfected in time, the fish may be disappointed. If we want the pond to be a spawning place during our breeding process, we must disinfect the pond, and then we still need to build some spawning nests.

The pituitary gland needs to be injected at the end of spring every year. At this time, the water temperature needs to be maintained. Basically, the temperature needs to be maintained at around 19-34 degrees. The injection is given per kilogram, about 6-7 mg. Male fish do not need that much, only about one half is needed.

In addition, wild sea bass in natural waters can reproduce naturally without the need for artificial pond construction and assisted reproduction.

3. What is the difference between wild tetras and artificial tetras?

There are many differences between wild tetras and captive tetras.

Wild tetras grow naturally and have a more natural growth environment and living habits, while artificial tetras are affected by the artificially controlled environment and produce certain differences.

Specifically, there are obvious differences between wild tetras and artificial tetras in terms of growth cycle, meat texture, food source, growth environment, etc.

Wild tetras have a longer growth cycle, their meat tastes more delicious, and they can freely access a variety of natural foods. Artificially farmed tetras require artificial feeding and are in a relatively monotonous environment, so the food types are relatively few, unlike wild tetras which have the advantage of a natural living environment.

In addition, the growth environment of artificial tetras is usually closed breeding ponds, while naturally farmed tetras are migratory fish that exist in wider ecological areas such as rivers and oceans.

Therefore, tetras in natural environments can better ensure the diversity and growth quality of their ecological environment.

4. What is the difference between wild and artificially raised Ya fish?

Ya fish is a major feature of Ya'an. Wild ones are very expensive and difficult to buy. Artificially raised ones are relatively cheap, only a few dozen yuan per pound.

1. Different body shapes

Wild fish and farmed fish can be distinguished by appearance, because their overall body shape is different. Wild fish live in the wild and need to hunt for food by themselves. The survival pressure is relatively high, so they may not be able to eat enough every time. Their body shape will appear slender and small. Farmed fish, on the other hand, tend to grow very large because they are fed at regular times and locations.

2. Different body colors

Wild fish mostly live in flowing waters with relatively clear water quality, and the overall color is lighter. At the same time, their scales are relatively thin and their appearance is shiny. Farmed fish live in still water with a certain amount of silt at the bottom of the water. Therefore, in order to better blend into the environment, their color will be darker and their scales will be thicker.

3. Fat Content

As mentioned above, they look different in shape, but the difference in shape is actually due to different fat content. Wild fish do not eat enough, so the fat content is relatively low, especially in the abdominal cavity, while farmed fish are fed with more nutritious feed and in sufficient quantity, so the fat content is relatively high.

4. Excretion of feces

The feces of wild fish are lighter in color. Although they have a certain fishy smell, the smell is relatively mild. This is different for farmed fish. Due to overnutrition, their feces are darker in color and have a strong fishy smell.

5. How to raise wild thrush fish artificially?

1. Prepare the fish tank. Spread a layer of dark sand on the bottom of the tank, set up shelters, grow some water plants, and put a few pieces of driftwood. The water quality of the Arowana is not strict, but the water quality that is slightly acidic is more conducive to the color development of the Arowana.

The brontosaurus is a bottom fish with strong territoriality. It can breathe above the water surface and has strong jumping ability. When it first arrives in a new environment, it loves to jump out of the water. Therefore, the fish tank for brontosaurus is a little special than that for other ornamental fish, and it must have a fish tank cover.

2. Before putting the water into the tank, let the tap water air dry for two or three days. If conditions permit, you can dry it in the sun for better results.

Place the brontosaurus, the original water and the fish bag into the prepared water.

The overheating process takes about 30 minutes of soaking, and the water is slowly mixed with the original water multiple times. Then, the fish is put into the prepared fish tank. Before the brontosaurus enters the tank, increase the oxygen supply to the fish tank so that the brontosaurus can adapt to the new environment faster.

The red dragon fish can adapt to a wide range of water temperatures and can survive in temperatures ranging from 5 degrees Celsius to 28 degrees Celsius. Only by using a constant temperature heating rod to control the water temperature at this temperature can it be kept in good condition.

3. Feeding. Arowana likes a lot of food, and it can be said that it is not picky about food. It mainly likes meat, such as small fish and shrimp, insects or dried insects, fish, pork, and artificial pellet feed. It is fed twice a day, with small meals. Although it takes a while to train wild colorful Arowana to accept artificial pellet feed, artificial pellet feed is more comprehensive in nutrition and more convenient to feed.

In addition to feeding live food every day, feed artificial granular feed regularly and quantitatively. Don't feed too much at the beginning, and you can set it according to the number of colorful brontosaurus. Then, before each feeding, hold the fish food in front of the fish tank to tease it, so that it can see that there is food. After about a week, the habit of eating artificial feed and the conditioned reflex of interaction will be formed.

6. What is the difference between wild and artificially raised brontosaurus?

1: In the wild, the dragon fish usually preys on live food, and will not refuse small living things. The diversity of food ensures the nutrition of the dragon fish, so the dragon fish living in the wild are very strong. However, the artificially raised dragon fish grows in an artificial environment from a young age, and eats food that is artificially delivered to the mouth (or in the tank), so it basically does not need to prey. Over time, its vitality is definitely inferior to that of the wild.

2 Wild brontosaurus can live up to 30 to 50 years. Artificially bred brontosaurus can only live up to 20 to 30 years if they are well-bred. Some poorly-bred brontosaurus may only live for a few years.

7. What is the difference between artificial yellow fox fish and wild ones?

The difference is not that big.

1. Body color: Wild ones are light in color, yellowish and white, while artificial ones are darker and blacker;

2. Body shape: In the wild, the cat is slender and narrow, with no obvious lateral lines on the back and belly;

3. Wild fish have different sizes and are mixed with other fish, while artificial fish have the same size;

4. There are traces of hooks and nets in the wild, and the fish scales have fallen off and been bruised;

5. Artificial visceral fat is high and there is feed in the intestines;

6. The tail of a wild fish is naturally smooth, with a sharp and shiny tail tip, while that of an artificial fish is asymmetrical, often tilted to one side, and dull in color; 7. The spines of the wild dorsal and anal fins are thick and the serrations on the rear edge are sharp, and the head is small; 8. Look at the annual rings on the scales, and for scaleless fish, look at the annual rings of the cross section of the spine or the gills. Annual rings are formed due to different growth rates in different seasons, forming a wide texture in summer and a narrow texture in winter.

8. What is the definition of artificial fish farming?

Fishery farming is also known as aquaculture, which is the artificial breeding of various fish species and seafood to meet market demand. It can be roughly divided into three categories: freshwater farming, saltwater farming and marine farming. Freshwater farming is carried out in inland ponds, lakes and other waters.

Freshwater aquaculture includes fish farming in rice fields, reservoirs, ponds, etc., mainly breeding fish and shrimps, with a high production level, large output and high returns.

Saltwater aquaculture is suitable for breeding some seafood that have special requirements for water quality, such as tilapia, pike, white shrimp, American red fish, carp, etc.

Marine aquaculture utilizes coastal beaches and bays to cultivate fish, shrimp, shellfish, algae, sea cucumbers, etc. It has high yields, short growth cycles, and high economic benefits.

9. Is bream a wild fish?

Bream was originally a wild fish, but now it can be farmed.

Bream, a chordate, class of bony fish, is one of the fine farmed fish species that has been bred from wild bream populations through artificial selection and hybridization. Bream is tall, flattened, diamond-shaped, with a small, terminal mouth, inclined mouth cleft, equal length of upper and lower jaws, strong and smooth hard spines, rapid growth, strong adaptability, and a wide diet. It usually inhabits open water areas with silt bottom and submerged plants, and is mainly distributed in medium-sized lakes attached to the middle and lower reaches of the Yangtze River in China.

10. How many wild fish are there in Yunnan?

How many wild fish are there in Yunnan? Fuxian Lake Anti-wave Fish, Jiangchuan Bighead Carp, Yunnan High-backed Crucian Carp, Lancang River Forktail Catfish, Yunnan Schizothorax, Jinsha River Perch Carp, Baoshan Four-bearded, Golden Line, Big Spiny Loach, Giant Embryo Blind Fish, Dali Schizothorax, Erhai Four-bearded Barramundi, Oil Four-bearded Barramundi, Big-eyed Carp (Others), Tiger Fish, Silverfish, Spiny Mackerel, Haha, that's all I know.