| pathogenicity profile of vibrio parahaemolyticus in farmed pacific white shrimp, penaeus vannamei. | a pathobiological study was conducted using vibrio parahaemolyticus (vp) strain isolated from vibriosis affected shrimp (penaeus vannamei) farms in kancheepuram and thiruvallur districts of tamil nadu during august 2014 to february 2015. the isolate was identified based on the morphological, physiological, biochemical and molecular characters. ld50 value with intramuscular injection was determined as 2.6 × 10(4) cfu/shrimp and sequential pathology was studied giving 6.1 × 10(3) cfu/shrimp (ld25) ... | 2017 | 28606862 |
| biochemical changes and tissue distribution of enterocytozoon hepatopenaei (ehp) in naturally and experimentally ehp-infected whiteleg shrimp, litopenaeus vannamei (boone, 1931), in india. | stunted growth in pond-reared litopenaeus vannamei was observed in different farms located in tamil nadu and andhra pradesh, india. no mortality was associated with stunted growth. pcr assay on these samples revealed the presence of enterocytozoon hepatopenaei (ehp) in stunted shrimp. tissue distribution of ehp in naturally and experimentally infected shrimp was studied by pcr and histology. histological examination revealed the presence of ehp in hepatopancreas and gut, but not in other organs. ... | 2017 | 27524805 |