Molecular characterization, transcriptional activity and nutritional regulation of peroxisome proliferator activated receptor gamma in Nile tilapia (Oreochromis niloticus).

Peroxisome proliferator activated receptor gamma (PPARγ) is a master regulator in lipid metabolism and widely exists in vertebrates. However, the molecular structure and transcriptional activity of PPARγ in fish are still unclear. This study cloned PPARγ from Nile tilapia (Oreochromis niloticus) referred as NtPPARγ and transfected the NtPPARγ plasmids into HEK-293 cells to explore its mechanism of transcriptional regulation in fish.

Oxygen consumption and ammonia excretion of black carp (Mylopharyngdon piceus Richardson) and allogynogenetic crucian carp (Carassius auratus gibelio female x Cyprinus carpio male) fed different carbohydrate diets.

Oxygen consumption and ammonia excretion of black carp (Mylopharyngdon piceus Richardson) (4.6±0.3 g) and allogynogenetic crucian carp (Carassius auratus gibelio ♀×Cyprinus carpio ♂) (5.

Gene discovery from an ovary cDNA library of oriental river prawn Macrobrachium nipponense by ESTs annotation.

The oriental river prawn, Macrobrachium nipponense, is an important crustacean species in aquaculture. However, early gonad maturity is a ubiquitous problem which devalues the product quality. While husbandry and nutritional management have achieved little success in tackling this issue, a molecular approach may discover the genes involved in reproduction and development, which will provide the basic knowledge on reproductive control.