Biotechnique for rearing white worm (Enchytraeus albidus

Rearing biotechnique of white worm, as a live food for fingerlings sturgeon, was studied during 90 days. Results showed that suitable moisture for growth of white worm was 50 ‐ 70 % with biomass 675 g/m2 during 90 days. White worms had similar growth both in acidic and basic area. White worm biomass reached to 576g/m2 in basic but reached to 568 g/m2 in acidic area that was maximum at pH 6.4 ‐ 7.6. Azola was used as food for white worm in amount of 60%, wheat meal 25%, and wheat skin 15% that caused to suitable growth in worms and their biomass reached to 533 g/m2. Although biomass of worm fed with mixture of potato 30%, carrot 3%, wheat meal 25% and wheat skin 15% reached to 584 g/m2, but biomass of worms fed with mixture of potato 60%, wheat meal 25%, and wheat skin 15% reached to 576. Economically, cost production of Azola was lower in comparison to other diets. Biochemical composition of worms fed with diet mixture of Azola, wheat meal andwheat skin had more protein (33 %) than others. Therefore, the results of this study can beintroduced to researchers and farmers as a new biotechnique for rearing of E. albidus

کلیدواژه ها:

Biotechnique ، rearing ، white worm ، Azola