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(Página creada con '=== Stage 1 === * Lasts ~ 12 hours * Prepares the bed * If carrying one pup, the onset of lactation coincides with parturition. * If carrying multiple pups, milk may be express...') |
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| − | === | + | === Stage 1 === |
| − | * | + | * Lasts ~ 12 hours |
| − | * | + | * Prepares the bed |
| − | * | + | * If carrying one pup, the onset of lactation coincides with parturition. |
| − | * | + | * If carrying multiple pups, milk may be expressed from the teats several days prior to the onset of parturition. |
| − | * | + | * Body temperature subnormal by at least 1.2◦C within 24 hours before the onset of labour. |
| − | * | + | * Restless |
| − | * | + | * Indifferent to food |
| − | * | + | * Panting |
| − | === | + | === Stage 2 === |
| − | * | + | * Depends upon the number of foetuses, but usually lasts ~6 hours. |
| − | * | + | * Straining indicates the onset of the second stage. |
| − | * | + | * Bitch remains in her bed in sternal recumbency |
| − | * | + | * 'Water bag' of the first foetus appears at the vulva, and attains the size of a golf ball. |
| − | * | + | * Bitch licks the vulva vigorously and usually ruptures the 'water bag'. |
| − | * | + | * Delivery of the head requires the greates effort, once this is bord the rest of the foetus follows easily. |
| − | * | + | * Expulsion of the first foetus may take up to 1 hour. |
| − | * | + | * Umbillical cord is intact at birth, the mother will soon bite it away. |
| − | * | + | * Bitch rests for a time after the birth of the first puppy. |
| − | * | + | ** Lies licking the puppy, which soon begins to suckle. |
| − | * | + | ** Pays frequent attention to the vulva and licks any discharge. |
| − | * | + | * Foetal membranes generally voided in 10-15 minutes and eaten by the bitch. |
| − | * | + | * Straining recommences after a delay of 30 minutes - 2 hours. |
| − | * | + | * Effort and time required for subsequent deliveries is usually less than the first. |
| − | * | + | * May rest in between subsequent deliveries, but may not. The period of rest is also very variable. |
| − | * | + | * Puppies tend to be expelled from alternate horns (unlike the sow). |
| − | * | + | * Expulsion of foetal membranes is also irregular, they may come out individually, or the next puppy may be born with the membranes of its predeccessor around its neck. |
| − | === | + | === Stage 3 === |
| + | |||
| + | * Membranes of the last foetus are expelled with it or shortly afterwards. | ||
| + | * Discharge is dark green in colour. | ||
| + | ** Due to breakdown of the marginal haematoma, blood pigment biliverdin escapes. | ||
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[[Categoría:Parto]][[Categoría:Comportamiento Reproductivo]] | [[Categoría:Parto]][[Categoría:Comportamiento Reproductivo]] | ||
Revisión del 19:56 2 nov 2011
Stage 1
- Lasts ~ 12 hours
- Prepares the bed
- If carrying one pup, the onset of lactation coincides with parturition.
- If carrying multiple pups, milk may be expressed from the teats several days prior to the onset of parturition.
- Body temperature subnormal by at least 1.2◦C within 24 hours before the onset of labour.
- Restless
- Indifferent to food
- Panting
Stage 2
- Depends upon the number of foetuses, but usually lasts ~6 hours.
- Straining indicates the onset of the second stage.
- Bitch remains in her bed in sternal recumbency
- 'Water bag' of the first foetus appears at the vulva, and attains the size of a golf ball.
- Bitch licks the vulva vigorously and usually ruptures the 'water bag'.
- Delivery of the head requires the greates effort, once this is bord the rest of the foetus follows easily.
- Expulsion of the first foetus may take up to 1 hour.
- Umbillical cord is intact at birth, the mother will soon bite it away.
- Bitch rests for a time after the birth of the first puppy.
- Lies licking the puppy, which soon begins to suckle.
- Pays frequent attention to the vulva and licks any discharge.
- Foetal membranes generally voided in 10-15 minutes and eaten by the bitch.
- Straining recommences after a delay of 30 minutes - 2 hours.
- Effort and time required for subsequent deliveries is usually less than the first.
- May rest in between subsequent deliveries, but may not. The period of rest is also very variable.
- Puppies tend to be expelled from alternate horns (unlike the sow).
- Expulsion of foetal membranes is also irregular, they may come out individually, or the next puppy may be born with the membranes of its predeccessor around its neck.
Stage 3
- Membranes of the last foetus are expelled with it or shortly afterwards.
- Discharge is dark green in colour.
- Due to breakdown of the marginal haematoma, blood pigment biliverdin escapes.