This is a simple production process. You should use the MRP module to describe the process properly. You have raw material (small shrimps or eggs or whatsoever), you have work centers (ponds) and you have feed, which is also a raw material. You have a cycle time (production time). So just set up your Bill of Materials, your work orders and your resources properly, and you can track whatever you want, see https://www.odoo.com/page/manufacturing as a teaser.

Hi there Ludo, 

The food was spent can be taken from default odoo warehouse module. I was thinking to setup Odoo as accounting application core. 

I have installed purchasing module, warehouse, accounting, and sales module.