Learning More Regarding Koi Breeding
Koi breeding is not easy if what you aim for is to make high-quality fish for competition purposes. Before you can obtain a prize-winning koi fish, you will have to cull and discard several thousand fry. The koi breeding process is lengthy and hard but it is worth it all.
Choosing the Parents
Choose the male and female from the same variety you want to reproduce. If you wish to cross-breed, choose varieties carefully and study more on the kind of offspring you're likely to get. Just remember that the dominant genes are the ones from the male parent.
Make sure to use only matured fish for breeding purposes. The ideal breeding age of the female is from 5 years onwards as their eggs are larger and much more fertile. Beware of breeding females younger than 4 years old as your koi could lose their colors and patterns if bred at an early age. The female koi is ready to spawn if you see it sucking at the edges of the pond, trying to clear an area where she can deposit her eggs.
Male koi can begin spawning upon reaching the age of two when small white nodules appear on the pectoral fins and gill plates. You can really feel those parts to be rougher than normal. You can use the younger males every two weeks but allow a longer time interval for older males to make best use of their fertility potential.
Spawning
Koi will naturally spawn in the early summer months. If you allow that to happen, however, the eggs will only be eaten by the some other fish while the females will be more anxious. The net result will be offspring of inferior quality. Besides, a pond packed with eggs will harbor bad bacteria that will adversely affect the health of your koi population.
If you are sincere in koi breeding, you will need to use a controlled method. Place the koi brooders in a separate pond and make sure to hang spawning media from the sides of the pond. The female will need them to deposit her eggs which can be anywhere between 100,000 to 500,000 depending on her mass. You can make use of ropes, artificial grasses, natural plants, vegetable sacking, and also cloth strips as spawning material.
During courtship, the male chases the female and forces her against the walls of the pond to initiate spawning. If there are two or three males in the pond, they will crowd on her to simultaneously fertilize the eggs.
You will know that the Koi have spawned if there is foam on the surface of the water and the unique smell of ammonia. By then, you will need to move the female to a different pond where she can regain her strength. Remove the males too; otherwise, they could feed on the eggs.
Culling
The fry will get out of their eggshells within 5 to 7 days. They will continue growing and you can begin culling on the sixth week. Remove the baby koi with deformities such as missing fins, deformed mouths, colorless, or single color.
Culling is crucial in koi breeding. You need to reduce the numbers so the great quality fry can get to a decent size by the end of the season. If you do not cull, the undesirable koi will still compete with the good koi for food as well as space. Culled fry are usually destroyed or fed to the other fish.
You can release your selected young koi in a mud pond that is very rich in natural food. As they grow larger, you can resume the selection procedure until you get only the best koi that you want to keep or sell.
Learning More Regarding Koi Breeding
Koi breeding is not easy if what you aim for is to produce high-quality fish for competition purposes. Before you can obtain a prize-winning koi fish, you will have to cull and discard several thousand fry. The koi breeding process is long and difficult but it is all worth it.
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