CATDOLL : CATDOLL: How much is a catfish per pound? (Feeding live fish over 20 pounds, cage culture)

It depends on the size, usually 20-25 pieces.

Cage stocking technology:

1. Stocking species According to the scientific research and practice in China in the past 20 years, the species suitable for cage culture include: tilapia: monosexual tilapia, tilapia, rainbow bream, etc.; carp: Jian carp, Feng carp, etc.; and spotted forktail catfish, etc. The species that can be cultured in cages include: bighead carp, longnose catfish, southern catfish, sea bass, carp, freshwater silver pomfret, grass carp, wild carp, flower carp, silver carp, etc. All regions can flexibly choose suitable species for breeding according to local market demand, seedling sources and other factors.

2 Stocking density The stocking density of the cage should be determined according to the culture method, that is, feeding or not feeding, and refer to the fish productivity of the cage. It can be calculated according to the following formula: Stocking density: estimated fish productivity / (out of the box size - stocking size) × expected survival rate

3. Species combination In cage fish farming using natural bait, silver carp and bighead carp are often used as the main species, with a small amount of scraping fish used to clean the cage. In cage fish farming using bait, grass carp is often used as the main species because of its poor scraping ability. Cages for farming tilapia or carp are not used with other fish.

The size of grass carp is 300-500g/tail, and the stocking amount is 20-25/m2. Silver carp, bighead carp with a size of 200-300g/tail and bream with a size of 100g/tail can be raised in the cage in appropriate amounts.

1. Advantages

Cage fish farming is a highly intensive farming method that applies pond intensive culture technology to larger water surfaces with superior environmental conditions to achieve high yields. It has the following advantages:

(1) It can save the land and labor required to dig fish ponds, and the investment will pay off quickly. Generally, the entire cost can be recovered in the same year of fish farming, and under normal circumstances, the cages can be used continuously for 2-3 years.

(2) Cage fish farming can make full use of water and feed organisms, implement mixed farming and intensive farming, and have a high survival rate, thus achieving the goal of high yields.

(3) The breeding cycle is short, management is convenient, and the cages are flexible and easy to operate. The cages can be moved at any time according to changes in the water environment. In case of flooding, the water level can be raised and the cages will not be affected. In case of drought, the cages can be moved to a lower position without any loss. The cages can ensure stable yields in both drought and flood conditions, and achieve the goal of high and stable production.

(4) Easy to catch. No special fishing tools are needed for harvesting. The fish can be put on the market all at once or caught in batches according to market demand. This makes it easy to transport and store live fish, which is beneficial to market regulation. People call it "live fish" on the water.

(5) Strong adaptability and easy to promote. Cage fish farming occupies a small area of ​​water and can be raised in rural areas, factories and mines as long as there is a certain water level and flow.