Some ecological factors effect on the growth of giant tiger prawn, Penaeus monodon fabricius (Physical Factors)
1991
Vipoosit Manthachitra | Voravit Cheevaporn | Somthawin Jaritkruan (Burapha Univ., Chon Buri (Thailand). Faculty of Science. Dept. of Aquatic Science)
Monitoring study on water quality and production of Giant tiger prawn, were carried out during 4 January to 12 May 1991. The pond was 3.8 rai (6,080 square meter) in area with intensive management. Results of water quality are as following : Salinity range between 29.75+-0.43 to 39.01+-1.00 ppt., Temperature 26.25+-0.25 to 32.00+-0.00 c., pH 7.10+-0.00 to 8.58+-0.21 , Dissolved Oxygen 2.94+-0.43 to 6.35+-0.18 ppm., Transparency 25+-0 to 80+-7 centimeter , Nitrate 1.88+-0.41 to 14.78+-0.75 ppm., Nitrite 0.36+-0.02 to 0.75+-0.05 ppb., Amonia 0.23+-0.40 to 0.45+-0.00 ppb. and phosphate 0.18+-0.00 to 0.89+-0.04 ppb. Stocking density of the study was 50 prawns/square meter. After rearing periods, the final size of prawn was 25 grams with yield 1,368 kg./Rai. Survival rate and food conversion Ratio were 62.4 and 1.474 % respectively. The result indicate that rearing is success. from statistical analysis, the results indicated that several parameters of water quality show significant correlation, both positive and negative, with growth parameters of prawn. To improve efficiency of rearing, stocking density should be considered.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил Kasetsart University