Development of all the signs of pregnancy without the presence of an embryo
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Name some alternative names for the condition (false pregnancy)?
Phantom pregnancy, Peseudopregnancy/Pesudocyesis
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What are the clinical signs of false pregnancy?
Anorexia, abdominal enlargement, nest making, nursing of inanimate objects, mammary development, lactation, phantom parturition, aggression and restlessness
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What causes of false pregnancies?
Pseudopregnancy is produced by either an overproduction of progesterone or abnormal persistence of the corpus luteum
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What causes of false pregnancies?
It is due to rising levels of prolactin which occurs as progesterone levels fall when the corpus lutea regress after metoestrous
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What causes of false pregnancies?
It can also occur by spaying a ***** too soon after a season
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Should false pregnancy be considered normal?
Yes - because the changes in plasma hormones are similar in both pregnant and non-pregnant individuals
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How do you treat false pregnancies?
In many cases removal of bedding (used to make a nest) or removal of toys (she is nursing) will help the ***** over false pregnancy
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What treatments can be applied for false pregnancy?
Progrestogens, androgen/oestrogen combinations, prolactin-suppressing drugs and antibiotics if mastitis occurs
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Does false pregnancy occur in cats?
Yes also occurs in the queen - however is different to that seem in the ***** and usually follows a sterile mating (or spontaneous ovulation).
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What happens after sterile mating in a cat?
After ovulation there is an increase in plasma progesterone which does not occur in the absence of mating and no return to oestrous for a further 35-40 days.
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What are the clinical signs of false pregnancy in the feline?
Absence of oestrus, no treatment required
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Does false pregnancy occur in mares?
No
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Any mare that fails to show signs of oestrus after in oestrus 18-20 days previously should receive what?
Ultrasound to check for pregnancy - most common reason for mares not to show oestrus during breeding season
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If no pregnancy is seen what is the most likely reason for the mare to show signs of oestrous?
Dioestrous ovulation - diagnosed using a serial ultrasound examination of ovaries.
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What can be used to treat dioestrous ovultion?
Prostaglandin
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Name some alternative names for the condition (false pregnancy)?
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