Technical Guide for Tilapia Farming (CDI, 1998, 51 p.): PART ONE: FISH FARMING NOTIONS: H. Ideas about fish farming management: 3. Stock Measurements and follow up

Technical Guide for Tilapia Farming (CDI, 1998, 51 p.)

PART ONE: FISH FARMING NOTIONS

H. Ideas about fish farming management

		(introduction...)
		1. Planning of production programmes
		2. Stocking
		3. Stock Measurements and follow up
		4. Optimal use of Growing Facilities

3. Stock Measurements and follow up

Regular follow up of stock populations, their evolution and growth, is essential. These controls will be done at least monthly and sometimes twice a month for certain batches. These controls will also account for feed consumption and feed conversion ratios. Data will then be analysed and compared to general reference standards. Options for rearing can then be decided for the following time period (e.g. increase/decrease of feeding rates, grading, harvest, etc.). Every fish batch needs to be followed individually. For those farms with adequate computer facilities (PC), specific stock management programmes exist which are very useful for eliminating paperwork and providing up-to-date information on stock performance.