Pipp
Well-Known Member
[size=-1]http://www.biolreprod.org/cgi/content/abstract/53/3/519[/size]
[size=-1][/size]
[size=-1]Biology of Reproduction, Vol 53, 519-524, Copyright © 1995 by Society for the Study of Reproduction [/size]
ARTICLES
Parturition in the rabbit is compromised by daytime nursing: the role of oxytocin
R Hudson, A Muller and GA Kennedy
[size=-1]Institut fur Medizinische Psychologie, Ludwig-Maximilians-Universitat, Munchen, Germany.[/size]
Rabbits nurse briefly only once each night and are frequently both pregnant[suP] [/suP]and lactating. To investigate the influence of the daily timing of nursing[suP] [/suP]on parturition, does (n = 10 per group) were remated after giving birth and[suP] [/suP]were allowed to nurse under one of three schedules: group 1 every 24 h in[suP] [/suP]the light, group 2 every 24 h in the dark, and group 3 at any time. Whereas[suP] [/suP]does from groups 2 and 3 nursed and gave birth normally, does of group 1,[suP] [/suP]forced to nurse out of phase with the normal schedule, showed disturbed[suP] [/suP]nursing behavior and prolonged gestation followed by many stillbirths. In a[suP] [/suP]second experiment, pregnant does (n = 10 per group) were treated daily[suP] [/suP]either with oxytocin (OT) in the light (group 4), with OT in the dark[suP] [/suP](group 5), or with progesterone (P; group 6) or saline (group 7) in the[suP] [/suP]light. All does gave birth normally except those of group 4, which[suP] [/suP]responded similarly to group 1 does. These findings demonstrate that in the[suP] [/suP]rabbit, parturition may be seriously compromised if does nurse out of phase[suP] [/suP]with the normal schedule and suggest that a shift in the daily timing of OT[suP] [/suP]release may underlie this.
For the full article, see:
http://www.biolreprod.org/cgi/reprint/53/3/519
[size=-1][/size]
[size=-1]Biology of Reproduction, Vol 53, 519-524, Copyright © 1995 by Society for the Study of Reproduction [/size]
ARTICLES
Parturition in the rabbit is compromised by daytime nursing: the role of oxytocin
R Hudson, A Muller and GA Kennedy
[size=-1]Institut fur Medizinische Psychologie, Ludwig-Maximilians-Universitat, Munchen, Germany.[/size]
Rabbits nurse briefly only once each night and are frequently both pregnant[suP] [/suP]and lactating. To investigate the influence of the daily timing of nursing[suP] [/suP]on parturition, does (n = 10 per group) were remated after giving birth and[suP] [/suP]were allowed to nurse under one of three schedules: group 1 every 24 h in[suP] [/suP]the light, group 2 every 24 h in the dark, and group 3 at any time. Whereas[suP] [/suP]does from groups 2 and 3 nursed and gave birth normally, does of group 1,[suP] [/suP]forced to nurse out of phase with the normal schedule, showed disturbed[suP] [/suP]nursing behavior and prolonged gestation followed by many stillbirths. In a[suP] [/suP]second experiment, pregnant does (n = 10 per group) were treated daily[suP] [/suP]either with oxytocin (OT) in the light (group 4), with OT in the dark[suP] [/suP](group 5), or with progesterone (P; group 6) or saline (group 7) in the[suP] [/suP]light. All does gave birth normally except those of group 4, which[suP] [/suP]responded similarly to group 1 does. These findings demonstrate that in the[suP] [/suP]rabbit, parturition may be seriously compromised if does nurse out of phase[suP] [/suP]with the normal schedule and suggest that a shift in the daily timing of OT[suP] [/suP]release may underlie this.
For the full article, see:
http://www.biolreprod.org/cgi/reprint/53/3/519
