In some breeds, artificial insemination is necessary because the parties involved either cannot perform the mating, the natural mating act or do not want it due to temperament.
In very rare breeds, the semen can also be sent as fresh or frozen semen. The bitch then does not have to be transported over long distances and the breeds can still be preserved in this way.
Correct timing and procedure
When the bitch is slowly approaching the ovulation time, you should be in constant contact with the owner of the male dog that he z.B. does not plan a weekend vacation just when the bitch is ready to mate.
If the bitch is right before ovulation, fertilization should take place within the next 24 hours. Artificial insemination, if the normal way of mating does not work out, should be done as follows:
- The male dog is stimulated in the presence of the hot bitch and in this way the semen is obtained.
- The obtained ejaculate is examined.
- The semen is transferred with a sterile syringe via a catheter into the uterus.
- After that, the pelvis of the bitch is opened for ca. 30min high, so that the sperm flow towards the uterus.
- The 1. Insemination after 24 to 48h after reaching the time close to ovulation and
- the 2. Insemination 24 to 48h later.
The time span of 24 to 48 hours is due to the fact that the oocytes mature in the fallopian tube for 2 to 4 days after their release before they are ready for fertilization for 2 to 3 days.
Sperm activation takes place in the female genital tract and lasts about 7 hours. This physiological maturation process of the sperm cells in the female genital tract is called capacitation. The term covers all
Processes together, which enable the sperm to fertilize the eggs. The sperm cells remain capable of fertilization in a healthy genital tract for four to six days thereafter.
The exciting question: Did it work??
Signs of pregnancy:
- Vaginal discharge about 1 month after mating
- The teats occur approx. 25 to 30 days after insemination, due to their greater blood flow, the ejaculate is more evident.
- On 45. to 50. day of pregnancy the bitch’s abdomen enlarges slightly. At this time the weight also increases by 20 to 50%.
- Behavioral changes up to depression may occur.
- At the end of the pregnancy you can observe the "nest building", a scratching in the basket.
- general restlessness
Veterinary examination to determine pregnancy:
- After 21 to 25 days, a blood test can be performed to determine the hormone relaxin, which is produced exclusively by pregnant females.
- From the 28. On the 45th day an ultrasound examination shows the amniotic balls. The number of fetuses can not really be determined.
- Palpation of the abdomen can give a result – but is difficult in deep-breasted, overweight and nervous animals that tighten the abdomen a lot.
- From the 49. The skeletons of the puppies can be shown on the day of the birth with an X-ray examination.
- From the age of 50. to 55. On the day of pregnancy, the fetal heart tones can be listened to.
Shortly before birth
In dogs, the gestation period is about. 63 days. The changing body temperature before the due date provides information about the approaching time of birth.