- Commercial fish farming:
when they reach a size of about 5 g / fish, taken at random from each rearing period to mark the 200 cwt position (code wire tag), the total number of each fish will have 600 individual marked position. locations marked for every man tilapia as follows: israel is the line crosses the original end position; gift line originally back in place;novit4 the original line on belly position. Three men tilapia after raising marks are generally arranged in 3 ponds (300 m2/ao), 200 units / fish / pond, a pond 3 above. conducted measure the quantities of fish before stocking them in the pond. random monthly catch 30 fish per man in each pond,mass balance conducted to monitor growth and adjust feed rations. size 5-30 g fish / fish fed the equivalent of 8-9% of body weight, size 31-50 g fish / fish fed 6-7% of body weight, fish size 51-100 g / fish fed 4-5% of body weight, fish size> 100 g / feeding 2-3% of body weight.food for stage use tilapia commercial feed industry is 26% protein. fed 2 times / day at 8 hours and 16 hours. experimental fish ponds care is as follows:
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