The objectives of this study were to evaluate the stress reaction and the metabolic adaptive effort in females of the fighting breed when submitted to different manipulation sequences. Nine 4- to 8-year-old bovine fighting breed females slaughtered to establish the basal levels of different blood parameters. A study was, then, conducted to examine the metabolic response in 30 2-year-old females...

Stable stress-responsive models have been established in murine (Moloney) virus sarcomas, which lend themselves to further study of intervening immunological mechanisms. Maximum tumor size was increased in sex-segregated male BALB/c mice at 6 and 9 months of age and in females subjected to 3 days of electric shock stress following virus inoculation. Reduction in maximum tumor size was found in ...

We combined behavioral and physiological measures to compare coping style in wild-type Betta splendens and a domesticated strain selectively bred for sports fighting. We showed previously that the fighter strain is more aggressive than the wild type during experimental conditions that most closely resemble an actual fight. We predicted that compared to the wild type, the fighter strain would sh...

During puberty, the agonistic behaviour of male golden hamsters undergoes a transition from play fighting to adult aggression. Repeated exposure to social stress early in puberty accelerates this transition. The present study investigated the possible role of glucocorticoids on the maturation of agonistic behaviour. First, we compared serum cortisol levels following a 20-min restraint stress du...

Aggressive behavior can be studied as either offensive or defensive responses to a stimulus. The studies discussed in this review are focused on the peripubertal development of offensive aggression in male golden hamsters and its responsiveness to repeated social stress. Quantitative and qualitative changes in offensive responses were analyzed during this period. Quantitative changes in offensi...

In male golden hamsters, agonistic behavior matures during puberty, changing from play fighting to adult-like aggression. In addition, this transition is accelerated by repeated social subjugation early in puberty. However, little is known about the development of agonistic behavior in females. In the present study, we compared the development of agonistic behavior in male and female golden ham...

This paper reviews the possibilities of UAV applications to forest-fire fighting in the typical before-during-after scheme. Before-fire they can be used for monitoring of the vegetation and the estimation of hydric stress and risk index. UAVs can also be applied for forest-fire detection, confirmation, localisation and monitoring. Finally, the UAVs are also useful for the evaluation of the fire...