The Youth Tudan Breed Fish Farm has built a new-type tank needed for putting the collection and hatching of eggs on a scientific footing and created a favorable environment for breeding more mudfish of a new species by installing new boilers.

Sunchon Catfish Farm, Sohung Poman Fish Farm and other fish farms have produced a huge amount of protein-rich feed to improve the nutritional care of catfish fry, while producing a variety of feed additive by their own efforts.

Those farms installed new oxygen-supply devices in their indoor breed-fish ponds and newly built habitats of insects used as protein-rich feed, thus opening up the prospects for increasing production.