Retention of Parental Urine Odour of Postweaning Female Root Vole
2007
To research the retention of parental odours of female root voles (
Microtus oeconomus ), the behavioural responses to urine from parents
were recorded 0, 10, 20, 30, and 40 days after weaning (20, 30, 40, 50,
60 days of age respectively). The results showed that: (1) The
frequency of self-grooming in the presence of paternal or a strange
male's odour was significantly different when subjects were 20 days of
age. The frequency of approach to paternal odour was higher than to a
stranger's odour. In addition, the counter-mark frequency for paternal
odours was less than for strange odours when subjects were 30 days of
age. (2) There was no difference between the behavioural responses to
paternal and strange odours when subjects were 40 days of age. (3)
There was no difference between the behavioural responses to maternal
and strange odours when subjects were 20 days of age. (4) Females
showed different behavioural patterns to maternal and strange odours
10-40 d after weaning. In conclusion, the retention of paternal odour
can continue until 10-20 d after weaning, and maternal odour can
continue until 40 d after weaning.
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