CATDOLL : CATDOLL: Problems with breeding dragon and phoenix koi???

1. Problems with breeding dragon and phoenix koi???

The dragon and phoenix koi are elegant but not powerful enough. Fortunately, they are relatively cheap, making them suitable for beginners to practice raising them.

There are a small number of dragon and phoenix koi for sale in general fish markets, and you need to take your time to look for them.

If you want to raise koi well, the most important thing is the week after you bring the fish home. Don't bother with it after that. It is very easy to keep it alive.

After you buy the dragon and phoenix koi, you must not put them directly into the tank! You must put them into the tank after they have been rinsed with water and do not feed them for a week.

The process of transferring water: put the fish and the plastic bag containing the fish into the fish tank, wait for an hour or two, when the temperature of the water in the tank and the water in the bag is almost the same, find a small basin, fill it with half the water in the fish tank, add two spoons of salt, dissolve it and set aside.

Untie the bag again and put the fish into the salt water and soak it for about half a minute. The fish will feel some discomfort during this process, so observe it closely. If it turns over, take it out immediately.

After soaking in water, put the fish into the fish tank, stop feeding it, and wait a week before feeding it again.

If your fish can survive this week, it is unlikely to die later. Raising koi is the same as raising other fish. You must first maintain good water. With good water, you don't need to use fish medicine. Also, novices love to mess around when koi have problems. It's best not to do this. Most of the diseases of koi can heal themselves.

When I first started raising koi, nearly a hundred of them died within three months. What I said above is all from my experience. It makes me feel a little sad when I think about it, haha.

2. What do dragon and phoenix koi eat?

Koi is an omnivorous fish. Leftover rice, vegetables, fruit peels, etc. can be mixed with about 10% animal viscera, golden apple snails, maggot pupae, earthworms and other animal feeds to make mixed feed; bean cakes, vegetable cakes, bread crumbs, fish worms, water earthworms, duckweed, duckweed, crab meat, clams, etc. can all be used as bait. The amount and ratio depend on the size of the fish. Live snails can be put in a little more, because after eating the leftovers, they can stay in the water to eat algae and other debris attached to the bottom and the wall of the pool, which has the effect of cleaning the water quality and is a good bait.

The amount of feed is the key to raising Koi well. If the fish cannot finish the feed, it will not only cause waste, but also cause the remaining feed to rot and deteriorate the water quality, which is not only unsightly, but also affects the survival of the fish. The water quality of the fish pond should be fresh green. When patrolling the pond every day, the leftover bait should be removed in time. In summer, when the water temperature is high, the water should be changed every 2-3 days, and in spring and autumn, the water should be changed every 4-5 days. The amount of water to be changed is 1/3-1/2 of the original pond.

Whether the koi has a strong appetite depends mainly on whether the water environment is comfortable. In spring and autumn, when the water temperature is suitable, sufficient feeding can be done. In summer and winter, when the water temperature is higher than 30℃ or lower than 7℃, the amount of feeding should be reduced as appropriate. Generally, it is best to finish eating in 15-30 minutes each time. The daily feeding amount is 5%-6% of the fish body weight. In summer, generally feed once at 6:00-7:00 am and 15:00-16:00 pm, once at 7:00-8:00 am and 14:00-15:00 pm in spring and autumn, and once at 13:00-14:00 pm in winter.

3. How to breed dragon and phoenix koi at home? Please be more detailed

When selecting broodstock for artificial breeding, the breed characteristics should be obvious, with good colors, patterns, base colors and postures, and they should be healthy and lively, and the female fish should be large and plump. The broodstock for breeding can be in the ratio of 1 female to 2 males to increase the fertilization rate. Although 1-year-old koi are mature, it is best to select 3-5-year-old broodstock to ensure quality. If the broodstock is too old, the hatching rate of its fertilized eggs will be reduced. Before breeding, the female and male fish should be raised separately, and then put back into the spawning pond during breeding. The spawning pond can be an earthen pond or a cement pond, with an area of ​​about 20 square meters and a depth of about 1 meter, which can be determined according to conditions. Disinfect the spawning pond 3 days before spawning. Put in the fish nest 1 day before spawning. Koi can spawn and fertilize naturally under the condition of water temperature above 18℃. After spawning, take out the fish nest, disinfect it, and put it in the hatching pond. Dystocia occasionally occurs in mature female koi.

Temperature plays an important role in the development of koi ovaries. When the daytime increases and the temperature reaches 20°C, the eggs in the ovaries of sexually mature female fish begin to develop. The temperature needs to be maintained at 20°C or higher for a period of time before the eggs mature. But when the temperature is not met, the eggs in the ovaries will continue to be produced immature. This will lead to the accumulation of eggs, which can cause dystocia.

Treatment method: 1. Koi can absorb the eggs in their bodies by themselves after stopping feeding in winter, so just keep the female fish free of disease.

2. Slowly raise the water temperature to 25°C and keep the female fish at this temperature for at least a week. Check every day whether the female fish can expel the eggs by squeezing its abdomen.

Dystocia often leads to bacterial infection and sepsis. Therefore, it is best to give the female fish an antibiotic injection.

3. If you suspect that the above two methods are ineffective, you can try hormone injections. Commonly used ones include:

a) Luteinizing hormone 5 mg/kg, two injections

b) Human chorionic gonadotropin 800ug/kg

c) Carp pituitary homogenate (CPE) First inject 0.3 mg/kg, then inject a second time 18 hours later at 3 mg/kg. Ten hours after the second injection, squeeze the abdomen of the female fish to see if eggs can be expelled.