How to Choose Koi That Are Easy to Keep? A Master Breeder's Guide to Artificial Propagation
1. Broodstock rearing (1) Broodstock pond specifications The area is usually 1500-3000 sq m, with a depth of 180-200 cm. (2) Selection of broodstock The selected broodstock should all be over 3 years old, with distinct breed characteristics and a strong physique. (3) Stocking conditions Females and males are reared separately, at a ratio of 1:1-2; density is controlled...
1. Broodstock rearing
(1) Broodstock pond specifications
The area is usually 1500—3000m², with a depth of 180—200cm.
(2) Selection of broodstock
The selected broodstock should all be over 3 years old, with distinct breed characteristics and a strong physique.
(3) Stocking conditions
Females and males are reared separately, at a ratio of 1:1—2; density is controlled at 450—750 fish/hm²
(4) Disinfection of fish bodies
Before releasing the broodstock, disinfect them using the following method
(5) Feeding
The feed is compound feed. Feeding strictly follows the “four fixed” principles (fixed time, fixed place, fixed quality, fixed quantity)
⟦14
2. Artificial induced spawning
2. Artificial induced spawning
(1) Preparation before induced spawning
Thoroughly scrub and disinfect the spawning pond, spawning nests, etc.
(2) Identification of mature broodstock
Before induced spawning, first examine the broodstock.
(3) Induced spawning
KoiInduced spawning agents are used for artificial induced spawning
(4) Injection method
A single injection method is used.
3. Artificial insemination
4. Artificial incubation
Before the fertilised eggs are transferred into the incubation pond, they are disinfected to inhibit the occurrence of pathogens.