Abstract
An experiment was conducted for 90 days at the Asian Institute of Technology in Thailand to
investigate the appropriate stocking density of large Nile tilapia placed in cages in earthen ponds
where small Nile tilapia were stocked in open water to utilize the wastes derived from the cages.
Large male tilapia (141 f 11 .l-152 k 2.1 g) were stocked at 30, 40, 50, 60, and 70 fish me3 in
4-m’ net cages. One cage was suspended in each of 15 earthen ponds, and three replicates were
used for each density. Small male tilapia (54 + 2.3-57 k I .2 g) were stocked at 2 fish me3 in
open water of all ponds. Caged tilapia were fed twice daily at 3%, 2.5%, and 2% body weight
day-’ during the first, second, and third month, respectively, with commercial floating pellets
containing 30% crude protein. Water quality was analyzed biweekly.
AbstractAn experiment was conducted for 90 days at the Asian Institute of Technology in Thailand toinvestigate the appropriate stocking density of large Nile tilapia placed in cages in earthen pondswhere small Nile tilapia were stocked in open water to utilize the wastes derived from the cages.Large male tilapia (141 f 11 .l-152 k 2.1 g) were stocked at 30, 40, 50, 60, and 70 fish me3 in4-m’ net cages. One cage was suspended in each of 15 earthen ponds, and three replicates wereused for each density. Small male tilapia (54 + 2.3-57 k I .2 g) were stocked at 2 fish me3 inopen water of all ponds. Caged tilapia were fed twice daily at 3%, 2.5%, and 2% body weightday-’ during the first, second, and third month, respectively, with commercial floating pelletscontaining 30% crude protein. Water quality was analyzed biweekly.
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Abstract
An experiment was conducted for 90 days at the Asian Institute of Technology in Thailand to
investigate the appropriate stocking density of large Nile tilapia placed in cages in earthen ponds
where small Nile tilapia were stocked in open water to utilize the wastes derived from the cages.
Large male tilapia (141 f 11 .l-152 k 2.1 g) were stocked at 30, 40, 50, 60, and 70 fish me3 in
4-m’ net cages. One cage was suspended in each of 15 earthen ponds, and three replicates were
used for each density. Small male tilapia (54 + 2.3-57 k I .2 g) were stocked at 2 fish me3 in
open water of all ponds. Caged tilapia were fed twice daily at 3%, 2.5%, and 2% body weight
day-’ during the first, second, and third month, respectively, with commercial floating pellets
containing 30% crude protein. Water quality was analyzed biweekly.
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