the canine estrus cycle:
| Hemostats: Straight or Curved ends Standard: 5 1/2 inch
|
REGUARDING "HEAT"
There are four stages :
- 1. Proestrus: vaginal discharge, males attracted to females, females unwilling to mate. Length: 4-20 days.
2. Estrus: swollen vulva, yellowish vaginal discharge, mating occurs during this phase. Length: 5-13 days.
3. Metestrus (or Diestrus): period after estrus or mating. Length: 60-90 days. If pregnant, pregnancy lasts between 60-64 days in the dog.
4. Anestrus: period of inactivity (sexual and hormonal) between estrus phases. Length: 2-3 months.
- Bleeding occurs prior to a female being receptive to a male (allowing mounting by the male), but male dogs will be very attracted to the female in the proestrus stage.