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Burhanuddin*,  Erfan A. Hendrajat  and Hidayat Suryanto Suwoyo
Research Institute for Coastal Aquaculture, South Sulawesi , Indonesia, 90511
Agency for marine and Fisheries Research and Development.


Shrimp is a high value commodities and can be culture in ponds. However, the technology is only applicable in certain areas, while ponds commoners have problems that reduced production due to progression of the disease. One reason is the declining quality of water resources and soil quality. One way to shorten the time is to use mulch to reduce bad effec of subgrade. Therefore conducted research on the use of plastic mulch on farm idle.

Study of vaname shrimp  (Litopenaeus vannamei) semi-intensive in ponds idle with a semi-recirculation system conducted at the  Research Institute for Installation pond Experimental, Maros brackish Aquaculture Development in, Marana in 2015. Aim to improve the productivity of farms idle. done Performed on two plots each pond measuring 2,000 m2.  The treatment is a plot of coated plastic mulch on the dikes, slop and pond bottom (A) and one plot only coated plastic mulch on the bund and slop without repetition. This study was conducted to determine the effect of plastic mulch on the growth and survival of vannamei shrimp ponds are maintained at idle in order to increase    production (Table 1)


Parameters measured were the growth, survival rate,   FCR, water quality, bacteria. Pond preparation is done according to SOP then performed stocking. Pond Maintenance activities with feeding 3 time/day and the observations of growth and water quality is conducted every 15 days. Growth, survival and production Lytopenaeus vanname  at table.1.  waterquality, bacteria were analyzed descriptively. water quality such as temperature, salinity, pH, alkalinity, DO, BOT, is still at a decent limit. While Nitrates in ground ponds from 0.087 to 0.54 mg/L and ponds mulch from 0.08 to 2.94 and are in the category of medium-high. Ammonia in the pond soil = 0.001 to 0.248 mg / L and ponds mulch from 0.007 to 1.178 mg/L are in critical condition. BOT and phosphate in ground ponds 49.02 to 65.06 mg/L and 0.103 to 1.837 mg/L and in plastic ponds from 0.018 to 1.104 mg/L and 0.018 to 1.104 mg/L thus considered to be very fertile. Nitrite content of the soil 0.165 to 2.157 mg/L and plastic ponds -0.525 0.084 mg/L and high.

Observation of total bacteria in the sediment pond reaches 1,15x105-3,04x106 CPU/g  and the water 2x103-3,9x105 CFU/ml and the number of vibrio bacteria in the sediment in the range 1,5x102-1,57x105 CPU/g and on the water 1x101-4,64x103 CFU/ml, but the number of bacterial pathogens in the water is in the range 1x101-4,64x103 CFU/ml and the sediment 1x102-3x102 CPU/g. The population of pathogenic bacteria in the sediment was detected on day 30 and the water detected on day 15 maintenance, 30 and 45, but the population has not reached a dangerous level or number of population 104 CPU/g as do the management of water using chlorine 60% in water and water tanks raw. The use of plastic mulch can increase vannamei shrimp production and use of chlorine in the tank can in hibit the increase population pathogen is  emergence of viral disease.

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