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THE EFFECT OF EARTHWORM, Lumbricus rubellis  ENRICHED WITH SPIRULINA POWDER ON PERFORMANCE OF BROODSTOCK TIGER SHRIMP, Penaeus monodon FROM THE PONDS AND THE WILD  

Syarifuddin Tonnek
 
 Research Institute for Coastal Aquaculture
 Jl. Makmur Dg. Sitakka No. 129 Maros 90511 South Sulawesi, Indonesia
syarfar@yahoo.co.id

The effect of earthworm, Lumbricus rubellis enriched with spirulina powder on performance of broodstock tiger shrimp,  Penaeus monodon from the ponds and the wild has been conducted from September to December 2013. The treatments are the use of natural food such as earthworms enriched with spirulina powder (A), the earthworm without enriched as an internal control (B) and marine worms, Neries sp as external control (C). Broodstocks tiger shrimp used were obtained from ponds with size 105 + 8.7 g for females and 72 + 5.4 g for males, while the wild sized 125 + 6.8 g for females and 68 + 8.2 g for males, respectively 4 individuals as replicates at each treatment. The study begins with the maintenance of earthworms fed enriched with spirulina powder and without spirulina for 1 month. Methods of enrichment by adding 10 g of spirulina powder every 10 kg of feed earthworm. The response of three treatments on the  broodstock tiger shrimp performance as shown in Table 1.

The third treatment responded positively to the gonad maturity, both at the female ponds and wild. Giving earthworm powder enriched with spirulina and marine worms, also gave a positive response to spawning the female ponds and wild. Effect of feeding worm-enriched spirulina seemed very real at the female wild who responds to the production of nauplii. Effect on response gonad maturation, spawning and nauplii production is closely connected with nutrition three treatments (Table 2). The percentage of protein and lipid in worms enriched spirulina higher than the other treatments. Protein and high lipid is very important in promoting the process of reproduction of shrimp, especially on aspects of gonad maturation and production of nauplii.

These results suggest that earthworms are enriched with spirulina powder can be an alternative in subtitution of marine worms are increasingly expensive and difficult to obtain.   




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