How can you tell when a fish is about to be born? What should I do? 100

When the belly is very large, it is obviously different from other fish, so it has to be isolated separately, otherwise other fish will eat it.

I forgot about it that time, and it turned out...

The principle is that the female gradually becomes larger, even becoming a kitchen knife ( almost born, attention!). I haven't accumulated much experience, and the current way of observation is to share with you The same amount of feed as usual, after half a day, the male fish's belly disappears, and the female fish is still in the shape of a big belly, at this time you can boldly assume that she is pregnant!

Continue to lock down and observe for a week, and the belly is still gradually getting bigger, congratulations on pregnancy! Unless there is an internal worm to blame.

If there is any mistake, please give us advice.

There is also the hole that you need to see the fish excrete, if it gets bigger, it means that it is going to be raw, and the belly is very round.

You can put the females you want to give birth to in other containers, larger ones, so that the pregnant woman can feel good. Spread the palm skin on the bottom of the container, which is the brown hairy thing, remember to wash it and press the stone around the skin. The mother will lay her eggs on it.

The koi fish are done according to what I said, my family is a koi, and it has successfully bred eggs and hatched. I don't have to put the male fish in, I put the two females in a basin and he lays eggs. The eggs are left to dry in the sun and hatch in a few days.

Remember to take care of the female fish!!

Look at the abdomen: the abdomen of the female fish to be produced is relatively large, especially compared with the male fish or other fish, the abdomen will appear very enlarged.

Look at the fetal spots: The color of the fetal spots is relatively light when fish start to conceive, and when they are close to giving birth, the color of the fetal spots will become darker.

Look at behavior: Fish are less active before they are produced, and many fish choose to hide in a corner, waiting for production.

1. Control the breeding environment: If you want to make ornamental fish reproduce, you need to prepare the breeding environment according to their habits, and only in a comfortable environment can they better match and produce.

2. Put in the new fish: After the breeding environment is ready, you can put the male and female fish in and pair. It is important to note that the ratio of males to females is determined according to their habits.

For example, the ratio of females to males when goldfish give birth is 1:2, while the ratio of females to males when guppies give birth is generally 1:3.

3. Isolation and maintenance: After the production and insemination of ornamental fish are completed, the broodstock need to be fished out first to avoid them accidentally harming small fish and fish eggs.

1. How to tell if a fish is going to give birth to a small fish.

2. How to judge that a small fish is going to be raw.

3. Under what circumstances will fish give birth to small fish?

4. How to tell if a small fish is going to be raw.

1.Usually, before the fish gives birth to small fish, the belly will become very large, and the fetal spots will be very noticeable.

2.Its appetite will decrease, and it will find a shady environment, and its swimming speed will become very slow.

3.Usually fish reproduce in two ways, one is oviparous, and the male is fertilized in vitro after the female spawns.

4.The other is ovoviviparous, in which the fish are fertilized internally, and the fertilized eggs hatch into small fish before they are produced.

There are two ways of fertilization in fish: the vast majority of oviparous fish undergo in vitro fertilization, and the broodstock discharges the sperm and eggs into the water; A small number of oviparous fish such as some sharks and rays undergo internal fertilization, while all ovoviviparous and viviparous fish undergo internal fertilization. There are three types of reproduction in fish: oviparous, ovoviviparous, and viviparous.

Expansion: 1. Introduction:

Fish are ectothermic aquatic vertebrates with body skeletal scales, gill respiration, fins as locomotor organs and feeding by the upper and lower jaws, belonging to the vertebrate subphylum of chordates, and the vertebrates are generally divided into five categories: fish (53%), birds (18%), reptiles (12%), mammals (9%), and amphibians (8%). According to the late Canadian academic"nelson"In 1994, there were 24,618 species of fish in the world, accounting for more than half of the named vertebrates, and new species of fish were constantly discovered, with an average of about 150 species per year, and more than 1,500 species should have increased in more than 10 years, and there are about 32,100 species of named fish species in the world at present.

2. Animal characteristics.

Fish is the oldest vertebrate. They inhabit almost every aquatic environment on Earth – freshwater lakes, rivers to saltwater seas and oceans.

There are about 26,000 species of fish found in the world, and the fish live in the water, distributed in the ocean and freshwater, with two-thirds of the fish living in the ocean and the rest living in freshwater. There are 2,500 species in China, of which there are more than 100 kinds that can be used for medicinal purposes, and the common medicinal animals are seahorses, sea dragons, yellow eels, carp, crucian carp, sturgeon (swim bladder is fish maw gum), large yellow croaker (otolith is fish brain stone), liver oil (vitamin A and vitamin D) are the main raw materials. Hydrolyzed protein, cytochrome C, lecithin, brain phospholipids, etc. can be extracted from various fish meat, and the liver and ovaries of puffer fish contain a large amount of tetrodotoxin, which can be extracted from neuropathy, spasms, tumors and other diseases.

The bile of large fish can be extracted"Calcium salts of bile pigments", which is the raw material for the artificial manufacture of bezoar.

The differences between fish classes are as great as between terrestrial vertebrates. Fishes are generally considered to be sleek, spindle-shaped, streamlined, finned, gills-breathing aquatic animals, but many more species do not meet this definition. Some fish are extremely long, while others are extremely short; Some are flattened on the sides, some are flattened; Some fins are large or complex in shape, while others are degraded or even digested; The shape and position of the mouth, eyes, nostrils, and gill openings vary greatly; Some fish breathe air and drown when they immerse themselves in water.

Fish is an important food for humans. Overfishing, pollution and environmental change can all destroy fish stocks, which prey on fish and help control mosquito-borne diseases such as malaria. Fish are important laboratory animals in behavior, physiology, ecology and medicine.

Hehe, most of the fish are "hatched", called oviparous.

There are also a small number of "births". There are two situations: ovoviviparous --- fertilized in the body and developed in the body, but relies on the yolk body to provide nutrition; Viviparity--- fertilization in the body, development in the body, its nutrition not only comes from the yolk of the body, but also needs to be supplied by the mother.

Some fish lay eggs.

Some fish hatch their eggs in their stomachs before they give birth to small fish.

In short, the fish is raw fish.

Look at the abdomen: Normally, the belly of a fish will become larger when it is about to give birth. In the case of ovoviviparous fish, the changes in the abdomen will be very noticeable.

Look at the fetal spots: If they are fish that are about to give birth, the color of the fetal spots on their abdomen will become very dark. In some fish, as the abdomen grows, the area of the placenta also increases.

Look at activity: Fish may stop moving and eating when they are about to give birth, and may hide in a corner to wait for birth.

1. Choose broodstock: If you want fish to reproduce, you need to choose some broodstock that have matured, and also choose the ratio of male and female according to their habits, so that they can be better matched.

2. Reproduction: After the fish are successfully paired, they will begin to reproduce, if it is an oviparous fish, the female will lay eggs first, and the male fish will be fertilized. If it is an ovoviviparous fish, it will mate directly.

3. Hatching and production: After the eggs become fertilized eggs, they can be successfully hatched after 2-3 days. If it is an ovoviviparous fish, it takes a while for the mother to give birth.

When a fish is going to give birth to a small fish, it will have noticeable fetal spots on its belly, and it will also have a very large belly. When a fish is about to give birth to a small fish, its genital pores will be abnormally protruding, and it will swim very slowly, and it may even appear anxious. Before the fish was born, its feces were black and did not change color depending on the food.

When a fish is about to give birth to a small fish, there will be obvious fetal spots on its belly, and the color of the fetal spots will gradually deepen before the baby fish is born, and its belly is also very large.

When the fish is about to give birth to a small fish, its genital orifice will be abnormally protruding, and it will swim slowly in the tank, and it will even often stay in the corner to appear more anxious.

When the fish is about to give birth to a small fish, its feces are black and will not appear other colors with the change of food, and even the belly of the viviparous fish will look more transparent and the belly will look more square.