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Breeding cycles

Unit 4 section 3

QuestionAnswer
What are the 4 stages of the oestrus cycle? Pre-oestrus, oestrus, metoestrus, anoestrus
What animal has 1-2 cycles each year? The dog
What type of ovulator is the dog? Monoestrous spontaneous ovulator
How long does the pro-oestrus stage last in the bitch? 7-9 days
What type of ovulator is the cat? Seasonally polyoestrus, induced ovulator
How long does the pro-oestrus stage last in the cat? 2-3 days
What area of the brain is stimulated by pain the cats to induce ovulation? Hypothalamus
What are some physiological effects caused by pro-oestrus in the bitch? Thickening of the vaginal wall Bloody vulval discharge Vulval swelling Release of pheramones Attraction to makes but no mating
How long does oestrus last in the bitch? 9 days
What colour does vulval discharge change to during the bitches oestrus? Straw coloured
What are some physiological signs of oestrus in the cat? Rolling around Rubbing against furniture Lordosis Loud mewing
How long does oestrus last for the cat if no male is present? 10 days
What stage does the cat have but the dog does not? Interoestrus
When does interoestrus last till? Till the queen is mated of daylight hours shorten
How long do metoestrus I and metoestrus II last in the dog? I - 20 days II - 70 days
What can happen as a result of hormone changes during metoestrus? Pseudopregnancy
What stage lasts 3-10 months in the dog? Anoestrus
Anoestrus in the cat is - period of sexual inactivity usually between September and January
What type of ovulator is the rabbit? Induced ovulator
Created by: CatLady93
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