Document Detail

Birth rate and mortality rate of infants with congenital malformations of the limbs in the Awajishima free-ranging group of Japanese monkeys (Macaca fuscata).
MedLine Citation:
PMID:  9209587     Owner:  NLM     Status:  MEDLINE    
The birth rate and mortality rate of infants with congenital malformations of the limbs were examined in the Awajishima free-ranging group of Japanese macaques (Macaca fuscata). Of the 606 infants born between 1978 and 1995, 86 (14.2%) were malformed. The male-female ratio did not differ between malformed and normal infants. Most kin-groups included females who gave birth to malformed infants at least once. The mortality rate within the first year after birth for malformed infants (28.2%) was significantly higher than that for normal infants (10.0%). However, this indicates that more than 70% of malformed infants were able to survive for the first year of life, even though they were unable to cling to their mother's ventrum due to their limb deformities. This finding indicates that maternal care-taking is sufficient to enable malformed infants to survive during the early stages of development and that clinging by the infant is not necessary for the display of maternal care.
M Nakamichi; H Nobuhara; T Nobuhara; M Nakahashi; H Nigi
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  American journal of primatology     Volume:  42     ISSN:  0275-2565     ISO Abbreviation:  Am. J. Primatol.     Publication Date:  1997  
Date Detail:
Created Date:  1997-08-22     Completed Date:  1997-08-22     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8108949     Medline TA:  Am J Primatol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  225-34     Citation Subset:  IM    
Faculty of Human Sciences, Osaka University, Japan.
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MeSH Terms
Animals, Wild
Birth Rate
Congenital Abnormalities / epidemiology,  genetics,  veterinary*
Japan / epidemiology
Limb Deformities, Congenital*
Macaca / abnormalities*
Reference Values
Sex Characteristics
Sex Ratio
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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