Finfish Breeding and Hatchery Management

Unit 3 - Breeding of major carps

3.6.1.d. Fertilization rate

It indicates the quality of developing eggs and is estimated using the formula :

Fertilization rate (%) = No. of fertilized eggs/Total no. eggs x 100

Hatching rate

It can be estimated by knowing the total volume of spawn /number of spawn in a known volume

Hatching rate (%) : Total no. of spawn obtained/Total no. of fertilized eggs x 100