SEXUAL AND SOCIAL-BEHAVIOR OF ADULT SADDLE-BACK TAMARINS (SAGUINUS-FUSCICOLLIS), CASTRATED AS NEONATES

被引:8
作者
EPPLE, G
ALVEARIO, MC
STANDRE, E
机构
[1] MONELL CHEM SENSES CTR, 3500 MARKET ST, PHILADELPHIA, PA 19104 USA
[2] GERMAN PRIMATE CTR, GOTTINGEN, FED REP GER
关键词
D O I
10.1002/ajp.1350130106
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
The behavior of four adult males castrated as neonates was compared with that of three neonatally sham-castrated males and two untreated males serving as controls. Two males castrated as sexually experienced adults served as additional controls. All males lived in permanent male-female pairs. The interactions of neonatally castrated, sham-castrated, and intact control males with strange conspecifics were tested in a situation analogous to territorial defense. In addition, the interactions of all males with their female pair mates were tested. Neonatally castrated males showed less injurious aggression against strangers and interacted with them less frequently than control males. There were significant differences between both groups of males in some of the agonistic behaviors recorded, but not in all. In pair tests, neonatally castrated males failed to show any coordinated male copulatory behavior but control males did. Males castrated as adults showed rates of mounting and thrusting similar to those of intact controls. Neonatally castrated males tended to interact with their females on a lower level than neonatally sham-castrated and untreated control males. However, most differences between both groups in the levels of pair mate interactions were not statistically significant. It is concluded that castration during neonatal life prevents the display of male copulatory behavior in adulthood and selectively affects the display of a number of other behaviors in adulthood. It is not possible at this point to decide whether these results are due to hormonal deficiences on an organizational or activational level or both. However, data from studies currently in progress suggest that organizational processes might be responsible for part of the effect.
引用
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页码:37 / 49
页数:13
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