The concept of trade‐offs is central to our understanding of life‐history evolution. The
underlying mechanisms, however, have been little studied. Oxidative stress results from a …

The antioxidant role of carotenoids in the living organism was proposed as a possible basis
for the honesty of carotenoid‐based signals. However, recent studies have questioned the …

In recent years ecological research has focused on the relevance of antioxidants and
oxidative stress in the evolution of life-history strategies and physiological trade-off in birds …

Selenium is an important mineral, required for many functions within animals, where it
interacts with vitamin E, maximizing the efficiency of the vitamin as an antioxidant. In …

The role of selenium (Se) in human health and diseases has been discussed in detail in
several recent reviews, with the main conclusion being that selenium deficiency is …

Subsequent to banning of use of antibiotics as growth promoter sin poultry nutrition,
numerous studies turned to finding of alternative solutions, ie other, natural substances …

We investigated the contents in yolk and albumen of the trace minerals Se, Zn, Mn, Co, Cu,
Mo, V, Cr, Ni, Tl, As and Cd in eggs from hens from three husbandry systems by ICP-MS …

The classical version of the differential allocation hypothesis states that, when females
reproduce over their lifetime with partners that differ in their genetic quality, they should …

Despite substantial interest in the trace element content of eggs by poultry breeders,
nutritionists, and environmental scientists, available data about trace elements levels in …

1. Recently, ecologists have shown interest in examining antioxidant protection in wild
animals; carotenoids in particular have received attention as antioxidants that play an …