The contamination of heavy metals in water is a worldwide issue which increasing day by due to the different types anthropogenic activities. These pose serious health risk on aquatic organisms. One such metal chromium. present study about determine 24h, 48h, 72h and 96 hours LC50 value hexavalent chromium for Nile Tilapia, Oreochromis niloticus. In study, 96h exposure Tilapia (Oreoch...

J. Anim. Sci. Vol. 88, E-Suppl. 2/J. Dairy Sci. Vol. 93, E-Suppl. 1/Poult. Sci. Vol. 89, E-Suppl. 1 T135 Comparison of nonlinear functions for describing the growth curve of Nile tilapia Oreochromis niloticus var. chitralada in a commercial production cycle. D. Rodriguez1, C. Ariza-Nieto2, A. Munoz1, and G. Afanador*1,2, 1Universidad Nacional de Colombia, Bogota, Colombia, 2CORPOICA, Bogota, Co...

Effect of colour and presence of artificial haven on the development and survival of Oreochromis niloticus (Linnaeus, 1758) fry. The development and survival of sexually-reverted Nile tilapias (Oreochromis niloticus) fry, bred in artificial havens of different colors, are provided. Research was carried out during 28 days, with 240 fry of the Nile tilapia, initial average weight 0.51 ± 0.11g. An...

Inter-simple sequence repeat (ISSR) analysis was used to develop fish species-specific molecular markers for four Tilapia species (Oreochromis niloticus, Oreochromis aureus, Tilapia zillii and Sarotherodon galilaeus). 12 ISSR primers were tested to assess the effectiveness of ISSR analysis in discriminating among the four applied fish species. Some ISSR markers were detected as species-specific...

Surface water contains a large number of pollutants, particularly human pathogens, organic toxicants and heavy metals. Due to the toxic nature of heavy metals towards marine organisms, its removal from the environment has been a growing issue. The biosorption of heavy metal ions from surface water using fish scales has emerged as an environmentally friendly technique. This study assessed the de...

Aneuploidies are numerical genetic alterations that lead to changes in the normal number of chromosomes due to abnormal segregation during cell division. This type of alteration can occur spontaneously or as a result of exposure to mutagenic agents. The presence of these agents in the environment has increased concern about potential damage to human health. Rotenone, derived from plants of the ...

The main aim of this study was to demonstrate that the surface immunogenic protein (Sip) of the aquatic pathogen Streptococcus agalactiae is a potential candidate for vaccine development for Oreochromis niloticus. In this study, a Sip was identified. Alignment analysis indicated that the Sip protein was highly homologous with Sip proteins from other S. agalactiae isolated from humans (99%). SDS...

The toxicity and genotoxicity of wastewater from eight gasoline stations in Brasília, Brazil's capital city, was studied by assessing chromosomal aberrations, chromosomal malsegregation and the mitotic index in Alliumcepa root cells, and the occurrence of micronucleus and nuclear abnormalities in peripheral erythrocytes of tilapia fish (Oreochromis niloticus). The content of gasoline station ef...

Pemanfaatan perikanan secara lestari sangat diperlukan agar sumberdaya yang ada saat ini bisa terus dimanfaatkan dan juga dalam rangka pemulihan stok telah rusak. Ikan nila (Oreochromis niloticus) ikan mujair mossambicus) luas dikenal sebagai salah satu spesies air tawar penting budidaya. Penelitian dilakukan dengan tujuan identifikasi Oreochromis spp. dari perairan daratan Merauke menggunakan ...