What is Mary fish unripe small fish augural? How does dystocia do?

Before the birth of Mary fish, the belly will become bigger and bigger, and the fetal spots will become more and more obvious. Generally, the production cycle of Mary fish is about one month, and breeders can calculate the time and isolate Mary fish for delivery a few days in advance. Mary fish will also be more irritable before birth, and will attack other fish if they are not isolated. Mary fish are ovoviviparous, so the possibility of dystocia is higher than other fish. If Mary fish are found to be difficult to produce, water can be changed appropriately to stimulate their production.

One, Mary fish gives birth to small fish omen

1, appearance change: Mary fish is in parturient when abdomen can be bigger and bigger, the position that is close to genital aperture can appear fetal spot, when giving birth quickly commonly, fetal spot can become black.

2. Personality changes: Mary fish will be unusually irritable or unusually quiet before giving birth. For example, it will actively attack all the fish near it. It will also appear listlessness, loss of appetite and reduced activity. However, before giving birth, it will remain motionless at the bottom of the tank to maintain physical strength for delivery.

2. How to deal with

dystocia of Mary fish? Generally, the birth cycle of Mary fish is about one month. Breeders can record the time of pregnancy. If they find that Mary fish has not been born until the date of birth, it may be dystocia. At this moment, can use the following method to promote Mary fish to produce:

1, change water: Mary fish does not give birth all the time or give birth to half not to give birth, can change water to stimulate them in a small amount, also can use very small current to pound their abdomen, will promote them to produce.

2. Temperature rise: The breeder can raise the water temperature in the fish tank by 2 degrees, wait for the water temperature to drop by itself and then raise it again, and use the temperature difference to stimulate the production of Mary fish.

3. Change the production environment: If the above two methods can not promote the production of Mary fish, the breeder can try to change a new fish tank for Mary fish, but the water temperature of the new fish tank should be the same as that of the old fish tank.