Body size as a determinant of aggression during heterosexual encounters in hormone-treated gonadectomized pigs

Aggression during sexual encounters betw

Aggression during sexual encounters between hormone-treated gonadectomized pigs in the presence or absence of boar pheromones

✍ R. F. Parrott; W. D. Booth; B. A. Baldwin 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 456 KB

Aggressive and sexual behaviour was studied in 5-min paired encounters between castrated prepubertal boars (N = 14) and normal (N = 2) or bulbectomized (N = 2) oestrogen-treated ovariectomized gilts. The boars were made sexually active by treatment with 17&0estradiol + Sa-dihydrotestosterone. H a l