Quantifying the genetic parameters of feed efficiency in juvenile Nile tilapia Oreochromis niloticus

Visual communication stimulates reproduction in Nile tilapia, Oreochromis niloticus (L.).

Reproductive fish behavior is affected by male-female interactions that stimulate physiological responses such as hormonal release and gonad development. During male-female interactions, visual and chemical communication can modulate fish reproduction. The aim of the present study was to test the effect of visual and chemical male-female interaction on the gonad development and reproductive beh...

Behaviours Associated with Acoustic Communication in Nile Tilapia (Oreochromis niloticus)

BACKGROUND Sound production is widespread among fishes and accompanies many social interactions. The literature reports twenty-nine cichlid species known to produce sounds during aggressive and courtship displays, but the precise range in behavioural contexts is unclear. This study aims to describe the various Oreochromis niloticus behaviours that are associated with sound production in order t...

The effect of feed ingredients on the settling velocity of feces in Tilapia (Oreochromis niloticus L.)

Human Streptococcus agalactiae Isolate in Nile Tilapia (Oreochromis niloticus)

Streptococcus agalactiae, the Lancefield group B streptococcus (GBS) long recognized as a mammalian pathogen, is an emerging concern with regard to fish. We show that a GBS serotype Ia multilocus sequence type ST-7 isolate from a clinical case of human neonatal meningitis caused disease and death in Nile tilapia (Oreochromis niloticus).

Efficiency of eugenol as anesthetic for the early life stages of Nile tilapia (Oreochromis niloticus).

In aquaculture, activities with anesthetic compounds are usually used in order to ensure the welfare of farmed fish, allowing handling out of water with decreased trauma by stress. Presently, there is no information about anesthetic action of eugenol in early life stages of Nile tilapia (Oreochromis niloticus). The objective of this study was to evaluate different concentrations of eugenol for ...