Selective breeding of rohu, Labeo rohita to Aeromonas hydrophila infection requires a challenge model to obtain LD50 dose and study of bacterial persistence in survivors’ tissues. Fish were bath challenged with various routes viz., only immersion, after scale removal (with and without high stocking), after skin abrasion (with and without high stocking), under only high stocking density and afte...

Serum samples were obtained from the control and experimental fish, Labeo rohita treated with 1/3 of LC50 of methyl parathion. Creatine kinase (EC 2.7.3.2) isozyme and subbands (isoforms) were studied using clinical automatic electrophoresis and densitometer. CK isozymes and isoforms were found to display disparate electrophoretic mobility in fish when compared with CK patterns of human. It was...

Freshwater lakes are sensitive ecosystem and respond to the episodic changes from its surrounding environment. The physico-chemical factors of water and biological processes determine the quality of water which in turn indicates the diversity of fauna and flora that the water would support. However, the ecological factors of lake correlating with parasitic isopods under natural conditions are p...