Farming friends, it is not easy to raise sows for a long time. There is any situation in the sows in pregnancy. We can’t sleep or sleep.
According to data reports, in the early death of the embryo, 1-3 days after the breeding, the internal environment was not suitable, and the mortality rate could reach ≥20%.
9-24 days after the breeding, embryos are implanted into the uterus, and the mortality rate can reach ≥50%.
26-40 days after breeding, the embryo forms organs, and the mortality rate can reach ≥30%.
It can be seen that the sow is extremely unstable within 40 days of pregnancy.Among them, the early embryo was a major factor due to physical stimulation caused by physical stimulation, and it was often ignored after our breeding. Are we usually done these actions?
1. After finishing planting
Many breeders, after the natural mating or artificial insemination is completed, kick the pig or slap the pig’s buttocks, and thinks that it can stimulate the sow’s uterine contraction and prevent semen from flowing back.
As everyone knows, this kick will cause sows to produce stress reactions and produce corticosteroid hormone, but interfere with the secretion of "love hormone" -the oxytocin, affecting the continued flow of semen to the fallopian tube.
2. Drive the sow to move the house
During this period of transfer sow may lead to a decrease in spontaneous abortion or nest production.If the sow needs to be transferred after breeding, it either transfer it within 40 hours after the last 4 hours of infusion, or transfer it within 30 days after the last 30 days of infusion.
Even if the sow is a group, it is recommended to use a limit bar in early pregnancy. In fact, animal welfare requirements are strict, and the European Union allows the sow limited barracks to use sows within the breeding.
3. Suddenly replace the diet
For a child, the sow material can still be used in the early middle of pregnancy.
In addition, it is feasible to feed 1 time/day in the pork house in full advance, which can reduce the disturbance of pigs and reduce labor.
The experiment found that the adjustment of the back of the sows on the front of the delivery room, the sow’s difficulty production, the initial weight of the piglet, the uniformity and vitality, the sow’s breastfeeding amount, the estrus rate of weaning for 7 days, and the piglet 28 days of 28 daysIn terms of weaning, sow feeding once a group during pregnancy (from 22 days of pregnancy to 3 days before giving birth) is better than feeding two groups
4. Feed from time to time, roars of sows climbing fences, etc.
Feed regularly, it is best to feed it twice a meal, and the first speed is fast. Make the hungry sow to solve the problem of hunger as soon as possible and prevent physical stimuli such as crashes.Feed.In addition, cellulose or green feed can be added to satisfy satiety.
5. The environment is noisy
Sowing should avoid high -intensity and sudden sound stimulation during pregnancy.During the peak of embryonic death, if sows were frightened or disturbed, it was likely to cause metabolic disorders and inhibit the internal environment of the uterus to varying degrees, which may increase the number of embryos death.
Therefore, during pregnancy, keep the circle quiet, prevent people from approaching, prevent pets or small animals from harassing, prohibit excessive noise, and we must not rush or beat the sow.
6. Improper medication
(1) Diuretic drugs can cause dehydration of the uterus and cause embryo to be dehydrated; anti -suppression drugs, the placental penetration power is extremely strong, which can easily lead to abortion.
(2) Some heat -relieving analgesic drugs are highly toxic, which can easily cause gastrointestinal reactions, damage liver and kidney, and cause abortion; sodium salicylate and aspirin have anticoagulant effects and are prone to abortion.Other heat -solving drugs can be used in quantity, and it is not easy to increase the amount at will.
(3) Antibiotics, such as rinsein, have high toxicity to the fetus and can easily lead to weak babies. Try to avoid use.For the test solution of the Timi Kaoxing, the placenta penetration is extremely strong, which can easily lead to abortion.
(4) Hormonal drugs, such as propyate testosterone, oxol, prostaglandin (PG), dexamethasone, and easily cause miscarriage. Pregnant beasts are disabled.
(5) Cholkine, such as ammonia methaline, coat, rutine, and enemies, etc., can easily lead to enhancement of uterine smooth muscle excitement and disabled for pregnant animals.
If pregnant sows are sick, the right medicine can prevent diseases and reduce abortion and increase production efficiency, and the use of wrong medicines will cause abortion.Therefore, it is necessary to clarify the taboos of pregnant livestock, so that there is a diagnostic significance for the disease.
