Data/hora: 05/06/2024 03:12:48

Provedor de dados: | 56
País: | Brazil
Título: | Reproductive experience influences grooming behavior during pregnancy in rats
Autores: | Serafim,A.P.; Felicio,L.F.
Data: | 2002-03-01
Ano: | 2002
Palavras-chave: | Self-licking; Parity; Lactation; Mammary gland; Prolactin; Dopamine.
Resumo: | The pregnancy-induced increase in self-licking observed in rats is important for mammary gland development and lactation. Reproductive experience has epidemiologial implications such as a decrease in the incidence of mammary gland cancer in women and it also influences various behavioral, neurochemical and endocrine parameters. The aim of the present study was to investigate the influence of reproductive experience on grooming behavior patterns during pregnancy in rats. Self-grooming behavior was measured in age-matched virgin, primi- and multigravid (days 7, 8, 9, 19, and 20 of pregnancy) rats. General grooming (head, forelimbs and shoulders) was not significantly different among virgin, primi- and multigravid rats during pregnancy. Confirming previous work, pregnant rats spent significantly more time in specific grooming (mammary glands, nipple lines, genital and pelvic regions) than did virgin animals. In addition, self- licking of mammary glands was significantly increased in multi- as compared to primigravid rats on days 8, 9, 19 and 20 of pregnancy. The increase in mammary gland grooming observed in multigravid rats appears to be a consequence of previous reproductive experience. These data show that reproductive experience modulates mammary gland grooming during pregnancy, possibly contributing to successful reproduction.
Tipo: | Info:eu-repo/semantics/other
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000300016
Editor: | Associação Brasileira de Divulgação Científica
Relação: | 10.1590/S0100-879X2002000300016
Formato: | text/html
Fonte: | Brazilian Journal of Medical and Biological Research  v.35 n.3 2002
Fonte: | info:eu-repo/semantics/openAccess