RATCLIFFE H L, SNYDER R L
Science. 1964 Apr 24;144(3617):425-6. doi: 10.1126/science.144.3617.425.
A study of male and female chickens caged alone, in male-female pairs, in groups of four males and in heterosexual groups of 6, 12, and 24, with a proportion of two males to one female, suggests that coronary arterial disease with myocardial infarction may be a response to social interaction, especially interaction that relates to sexual behavior. Myocardial infarcts were limited to males of heterosexual pairs and groups and to females of groups that contained 24 chickens. The lesion was found in males that died at 16 to 44 weeks of age, and in females at 32 to 43 weeks.
一项针对单独饲养、成对（一雄一雌）饲养、四只雄性一组饲养以及以两雄一雌比例组成的6只、12只和24只异性鸡群的研究表明，伴有心肌梗死的冠状动脉疾病可能是对社交互动的一种反应，尤其是与性行为相关的互动。心肌梗死仅限于异性配对和鸡群中的雄性以及包含24只鸡的鸡群中的雌性。该病变在16至44周龄死亡的雄性鸡以及32至43周龄的雌性鸡中被发现。
