Physiological effects of undernutrition on postpartum anoestrus
Perez-Hernandez P, Garcia-Winder M, Gallegos-Sanchez J (2002a) Postpartum anoestrus
is reduced by increasing the within-day milking to suckling interval in dual purpose cows.
Evaluation of a regimen using a progesterone releasing intravaginal device (CIDR) and PMSG as treatment for post partum anoestrus
in dairy cattle.
The duration of post-partum anoestrus
is influenced by a number of factors including nutritional status, suckling, periparturient disease (Ketosis, mastitis, retained placenta, metritis), season of calving, breed, and age or parity of cow [24, 25].
Chronic treatment with naloxone enhances libido in the male goat during anoestrus
Gallegos-Sanchez J, Malpaux B, Thiery JC (1998) Control of pulsatile LH secretion during seasonal anoestrus
in the ewe.
Chronic selenium toxicity provokes deceased productivity, anoestrus
or delayed onset of oestrus, failure of conception, abortion and ultimately death of affected animals resulting in extensive economic losses (Gupta et al., 1982; Dhillon and Dhillon, 1991b).
Several investigators have demonstrated that sows losing excessive amounts of body weight have extended weaning to estrous intervals and an increase in anoestrus
. However, in the present study weaning to estrus interval was not significantly affected by sow body weight at d 109 of gestation.