Melatonin is a much conserved feature in vertebrates that plays a central role in the
entrainment of daily and annual physiological rhythms. Investigations aiming at …

Tilapia culture is currently practised in 95 countries all over the world and the number is
expected to increase. This book discusses in detail the principles and practices of tilapia …

In vertebrates, melatonin (N-acetyl-5-methoxy-tryptamine, MEL) is synthesized from L-
tryptophan (L-Trp), primarily in the pineal gland and additionally in several non-pineal …

Fish are the largest phylum of living vertebrates, with around 30,000 fish species out of
approximately 50,000 vertebrate species (www. fishbase. com)[1]. Fish inhabit almost every …

This study investigated the effects of two levels of feeding (1 or 4% BW day− 1), two levels of
stocking densities (3 or 10 female m− 2) and two levels of water-flow rates (0.06±0.00 or …

Long-day photoperiods are considered as an effective managerial tool in manipulating
somatic growth and reproduction in a number of fish species. Effects of three different …

The economic benefit derived from a genetic improvement program with Nile tilapia
(Oreochromis niloticus) was examined from a national perspective. An industry structure was …

Tilapia, in general, are known for their plasticity in growth, reproduction, and age-and size-at-
maturity that not only make them an excellent aquaculture taxa but also allow them the …

Mothers should adjust the size of propagules to the selective forces to which these offspring
will be exposed. Usually, a larger propagule size is favored when young are exposed to …

We applied a candidate gene map** approach to an existing quantitative trait loci (QTL)
data set for spawning date in rainbow trout (Oncorynchus mykiss) to ascertain whether these …