KARAKTERISTIK REPRODUKSI INDUK IKAN BAUNG (Mystus nemurus) GENERASI PERTAMA STOK JATILUHUR

Euler-karakteristik for fusionskategorier

Role of the Immune Organ (thymus) in Mystus Gulio

The present work focused on role of the immune organ in the thymus of Mystus gulio. Haemopoietic tissue was found mainly in the spleen, head kidney, thymus and a small amount occurred in the mesonephros. The clearance of the intraperitoneally injected colloidal carbon was carried out. The phagocyte uptake of carbon, after its intraperitoneal injection. It was first detected in the thymus at 30 ...

KETAHANAN BENIH IKAN NILA GIFT (Oreochromis niloticus LINN.) DARI HASIL INDUK YANG DIBERI VAKSIN TERHADAP INFEKSI BUATAN Streptococcus iniae Resistance of Fry from Vaccinated Mother of Gift Tilapia {Oreochromis niloticus Linn.) to Artificial Infection of Streptococcus iniae

An investigation was made to study the efficacy of dosage and time of administration in maternal vaccination. Mothers of nile tilapia were vaccinated by intraperitoneal injection with adjuvant-heat killed Streptococcus iniae at one and two weeks after spawning at the dosages of 0,2 ml/kg and 0,4 ml/kg body weight. Unvaccinated mothers were used as control. Agglutinating antibody titers in the b...

Bacterial Communities from the Arsenic Mine in Złoty Stok, Sudety Mountains, Poland.

Investigations of bacterial communities and characterization of mineralogy of the environment in the Złoty Stok As-Au deposit were carried out. PXRD analysis revealed the presence of picropharmacolite as the most common secondary arsenic mineral in the mine. Total DNA was extracted from slime streams or slime biofilms samples to investigate the bacterial communities. PCR amplification of 16S rD...

HYDRAULIC BEHAVIOR IN THE DOWNFLOW HANGING SPONGE BIOREACTOR Karakteristik Hidraulik pada Bioreactor Downflow Hanging Sponge

Performance efficiency in a Downflow Hanging Sponge (DHS) bioreactor is associated with the amount of time that a wastewater remains in the bioreactor. The bioreactor is considered as a plug flow reactor and its hydraulic residence time (HRT) depends on the void volume of packing material and the flow rate. In this study, hydraulic behavior of DHS bioreactor was investigated by using tracer met...