Increasing crawfish yields

LSU AgCenter crawfish researchers gave recommendations to producers on improving their crop and avoiding or reducing problems in their ponds. Robert Romaire, LSU AgCenter aquaculture specialist, advised that algal scum that grows during cold weather will die in the spring, and the decaying vegetation will deplete oxygen from the water.

He said the condition could be evident in the next 3-4 weeks with the recent warm weather. Mr Romaire said low oxygen levels will stress crawfish, decreasing growth, increasing mortality and decrease crawfish shelf life after they are harvested. He recommended producers buy test kits to determine oxygen levels in ponds.

“When crawfish get into a growth or molt stage, they are real susceptible to oxygen stress,” Mr Romaire said. Read more ...

This blog is written by Martin Little The Aquaculturists, published and supported by the International Aquafeed Magazine from Perendale Publishers.