Lysine (Lys) and Methionine (Met) as two primary essential amino acids and precursors of carnitine biosynthesis are involved in most of economical traits function in domestic animals. We assessed the impact of dietary Lys and Met on the performance, lipid redistribution, intramuscular fat, carcass quality and especially phenotypic correlations among some studied parameters in broiler chickens. ...

Plant breeding programs in local regions may have genetic and phenotypic variations that are desirable and shape adaptability during the establishment of local populations. Despite the characterization of genetic population structures in various kinds of populations, the effects of variations in phenotype on agro-economical traits currently remain unclear. In the present study, we evaluated phe...

Before introducing a recording system for meat quality traits, the returns of this recording and the costs involved to obtain various measurements have to be compared. Some traits might be of high economic value, but on the other hand recording of these traits is also very costly. Recording of traits with low economical importance might be beneficial because of the low costs involved in obtaini...

Psychopathic personality traits are linked with selfish and non-cooperative responses during economical decision making games. However, the possibility that these responses may vary when responding to members of the in-group and the out-group has not yet been explored. We aimed to examine the effects of primary (selfish, uncaring) and secondary (impulsive, irresponsible) psychopathic personalit...

Women's preferences for men's masculinized faces and voices were assessed after women (n = 331) were primed with images of male-on-male aggression, male-on-female aggression, pathogens, and neutral scenes. Male-on-male aggression and pathogen primes were associated with increased preference for masculine traits, but the same effect emerged in the neutral condition. We show the increased prefere...

The strife of discrimination, prejudice and racism is barbed and brutal, converged with the theory that due to certain differences in traits (physical, intellectual, cultural or religious) some people are superior to others. Therein begins the power struggle for economical, political dominance and social advantage. Violence is very often the voice of this contorted struggle, surging forth and a...