Reducing mortality in catfish fries
Welcome to NAGRO, In this article, we will be walking you through the causes of mortality in catfish fries and how to reduce mortality in catfish fries, so keep reading.
Causes of Mortality rate in Catfish Fries
4. If three weeks old hatchlings of Clarias gariepinus are stocked for further growth then one of the reasons for such mortality may be the presence of copepods which easily devour hatchlings.
How to Reduce Mortality in Catfish Fries
1. So, first of all, be sure whether the water in which the hatchlings are stocked is infected with parasitic copepods (temporary) or not. To confirm take a torchlight and inspect the system at midnight. Focus the light on water at the midnight. If you see copepods aggregating at the focus of light then it may be the reason for the hatchling mortality.
2. Good water quality
3. And healthy feed
4. fingerlings of similar sizes should be stocked into smaller tanks before transferring them to the main grow-out pond.
5. Catfish are carnivorous by nature, which means they feed on flesh. So one should ensure that when stocking fingerlings, they should be sorted weekly and fingerlings of the same size should be stocked together as one.
Reducing mortality in catfish fries