- 期刊
- OpenAccess
Effects of Paddlewheel and Stocking Density on the Production of Tiger Prawn,Penaeus Monodon,in Saline Ponds
水車及放養密度對堿水池草蝦養殖之影響
摘要
A 20-day experiment was conducted to examine the feasibility of feedingyellow-finned black porgy Acanthopagrus latus larvae with micro-coated diet(MCD).Larvae at a density of 5 fish/1(2,500 per 500-liter FRP tank)were fedthe following four dietary regimes:100% live foods(rotifer,Brachionus plicatilisand/or brineshrimp,Artemia nauplii),33% MCD and 67% live foods,67% MCDand 33% live foods and 100% MCD.Each treatment had two replicates.The differences in the growth and survival were significant(p＜0.05)amongtreatments.The best growth(mean total length,9.34±0.59 mm)was obtainedin the larvae fed 67% MCD and 33% live foods,followed by those fed 33%MCD and 67% live foods(8.45±0.82 mm)and the 100% live foods group(7.45±0.70 mm).The larvae fed only MCD showed the poorest growth(6.74±0.63 mm).The best survival rate was also obtained from larvae fed 67% MCD and 33%live foods(20.8%),followed by those fed the 100% live foods(15.0%)and the33% MCD plus 67% live foods group(9.2%).The larvae fed only MCD alsohad the lowest survival rate(7.9%).The results indicated that the growth and survival of the larvae could beimproved by employing MCD and supplemented with a relatively small amountof live food.It,thus,suggested that prepared MCD can replace a great portionof the conventional live foods used in yellow-finned black porgy larval culture.
並列摘要
A 20-day experiment was conducted to examine the feasibility of feedingyellow-finned black porgy Acanthopagrus latus larvae with micro-coated diet(MCD).Larvae at a density of 5 fish/1(2,500 per 500-liter FRP tank)were fedthe following four dietary regimes:100% live foods(rotifer,Brachionus plicatilisand/or brineshrimp,Artemia nauplii),33% MCD and 67% live foods,67% MCDand 33% live foods and 100% MCD.Each treatment had two replicates.The differences in the growth and survival were significant(p＜0.05)amongtreatments.The best growth(mean total length,9.34±0.59 mm)was obtainedin the larvae fed 67% MCD and 33% live foods,followed by those fed 33%MCD and 67% live foods(8.45±0.82 mm)and the 100% live foods group(7.45±0.70 mm).The larvae fed only MCD showed the poorest growth(6.74±0.63 mm).The best survival rate was also obtained from larvae fed 67% MCD and 33%live foods(20.8%),followed by those fed the 100% live foods(15.0%)and the33% MCD plus 67% live foods group(9.2%).The larvae fed only MCD alsohad the lowest survival rate(7.9%).The results indicated that the growth and survival of the larvae could beimproved by employing MCD and supplemented with a relatively small amountof live food.It,thus,suggested that prepared MCD can replace a great portionof the conventional live foods used in yellow-finned black porgy larval culture.