Fish Nutrition and Feed Technology (2+1)

Practical 1-Proximate composition analysis of feed ingredients and prepared feeds

(e) Determination of Ash

Principle
The sample is ignited to 550-600°C to burn off all organic matter. The inorganic matter does not volatilize at the temperature is termed as ash.

Apparatus

• Muffle furnace
• Crucibles
• Dessicator

Weigh a 2-5 g sample into a dry porcelain dish and then place in a muffle furnace at 600°C for 6 h. Cool in a desiccator and weigh.

Calculation