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The 6 most common problems during and post whelping (canine pregnancy)
Common problems during whelping (giving birth)
Dystocia may be the cause if the mother to be is not progressing through labour as expected.
- Sometimes difficult birth is the result of problems with the shape and size of the pelvic canal. If the pelvis is narrow, either due to breed conformation or because of a previous fractured pelvis, delivering puppies may be difficult.
- Breeds predisposed to Dystocia include Dachshunds, French bulldogs and boxers.
- Uterine inertia can also cause dystocia. Uterine inertia occurs when the uterus is no longer able to contract and push the puppies through the vaginal canal. It can occur at any stage of labor and may be associated with uterine exhaustion.
- Size of the puppies. The size of the pups can cause dystocia. If the puppy is too large, it will not fit in the birth canal.
- Position. Puppies are normally born either head first or rear legs first. Puppies may be in a position that won't allow easy passage.
- Birth defects. Defects that result in enlargement of certain body parts can make birth difficult. Death of the babies can result in abnormal positioning and can affect uterine contractions.
- Single puppy litters
- Your dog has been pregnant for over 70 days.
- Stage I labor has gone on for 24 hours without producing a pup
- Stage I normally lasts 6 to 12 hours where the dog will exhibit nesting behavior and her temperature will drop.
- Steady strong contractions have continued for over 1 hour without producing a pup.
- Prolonged resting phase continues over 4 hours when there are more pups to be delivered.
- There is a foul smelling vaginal discharge.
- Mother-to-be has excessive vomiting or is extremely lethargic.
First your veterinarian will do a physical examination, including a vaginal exam, to determine whether the pups can move through the birth canal. An x-ray to determine the size, shape and number of pups may also be necessary. If your veterinarian feels the pups can move through the birth canal, there are a variety of medications available to assist labor:
- If the mother-to-be is nervous, your veterinarian can administer sedatives
- If uterine inertia is suspected, medication can be administered to stimulate contractions of the uterus.
- After prolonged labor, the mother may have low blood sugar or low blood calcium. In this case, your veterinarian will give calcium and dextrose injections which can help strengthen uterine contractions
- If easy passage is not possible, or if medical treatment is not effective, your veterinarian will deliver the pups by Cesarean section.
There is little that can be done to prevent dystocia, having good knowledge of what to expect from the birthing process and detecting problems early resulting in prompt veterinary assistance will give the mother the best chance of delivering live, healthy puppies.
Common problems post whelping
Most post-whelping problems are seen within the first few hours after whelping. Sometimes conditions make the bitch unable to feed her pups and they will have to be hand reared and fed milk replacer. It is important that if this is the case that the puppies receive colostrum to ensure they have a good immune system.
The most common post whelping problems are listed below:
· Eclampsia (milk fever)
Eclampsia is caused by low blood calcium levels (hypocalcemia) in dogs. The lactating (milk producing) bitch is especially susceptible to blood calcium depletion because the body cannot keep up with the increased demand for calcium. This is because dogs lack the ability to quickly move calcium into their milk without depleting their own blood levels of this mineral.
Litters do not need to be large to cause eclampsia. Small breed dogs are at higher risk than larger breed dogs. The puppies themselves are not affected as the mother’s milk appears to be normal during this period.
Eclampsia is a very serious disorder but fortunately the signs are fairly easy to recognize. Affected dogs may:
- Appear restless and nervous.
- Walk with a stiff gait and may even wobble or appear disoriented.
- Become unable to walk and her legs may become stiff or rigid.
- Fever, with body temperature even over 105º F.
- Affected bitches often develop muscle tremors
- The respiration rate (number of breaths per minute) will increase,
- Seizures may also occur, at this point; death can occur if no treatment is given.
Seek veterinary attention at once and prevent the puppies from nursing for at least 24 hours. Feed them with a commercial milk replacer. A veterinarian can confirm eclampsia with a blood test to determine blood calcium levels. Eclampsia can be rapidly corrected by your veterinarian through the use of intravenous calcium supplementation.
Inappropriate calcium supplementation can predispose a bitch to develop Eclampsia.
Adequate amounts of calcium need to be consumed by the pregnant bitch, but not so much that the production of parathyroid hormone is reduced. Parathyroid hormone is essential for maintaining adequate blood calcium levels. This means calcium supplements are generally not recommended. Also, it is important for the calcium and phosphorus in the diet to be at the correct ratio of 1 part calcium to 1 part phosphorus and vitamin D must also be present.
If your bitch experiences a heavy significant flow of blood any time after whelping, call your veterinarian immediately. This is a very serious emergency.
· Retained Placenta and Pups
Signs of retained placentas or puppies may follow whelping immediately, or several days later.
- persistent vomiting
- lack of appetite
- green vaginal discharge
These are all signs of a retained placenta, or even a retained puppy. Seek veterinary advice immediately.
Metritis is associated with infection. Uterine infections are emergencies that can be fatal if not treated quickly. Metritis sometimes follows after long or difficult labor.
- dull eyes
- reduced milk production
- Foul smelling discharge from the vagina.
This condition is very serious and requires immediate veterinary attention.
Mastitis refers to swelling, inflammation, and infection of the mammary gland and is typically caused by three kinds of bacteria: E. coli, staphylococcus, or streptococcus. Mastitis is most often seen in dogs during the first two weeks after delivery. Mastitis is fairly easy to treat but can be deadly if left untreated.
- Affected mammary glands are typically hot, swollen, firm to hard and may be painful to the touch
- Severely infected glands may be black in color or even ruptured, leaking a foul-smelling puss discharge
Colostrum is a special fluid secreted by the mammary glands of bitches near the time of birthing. It is rich in immune factors, growth factors, vitamins, minerals, amino acids, and other healthful components. It was designed by nature to promote strength, energy, and good health. It is important to ensure the puppies receive the necessary colostrum and, if their mother is unable to feed them, a replacement must be provided.