According to the rule of heat, the estrus cycle of the sow is judged to be about 21 days on average. Under normal circumstances, the pregnancy is no longer in heat. Therefore, it can be observed from the actual 18 days after sow mating, if the sow is not seen for about one week, it can be initially determined that the sow is pregnant.
External observations determine the sow after pregnancy, snooze, appetite, easy to wear, smooth fur, tame temperament, stable action, clip tail walk, tightness of the vulva, etc. If the above performance shows that pregnancy.
The urine test judges that 10 to 30 milliliters of urine excreted in the wild boar from the 28th to the 30th day after mating is placed in a transparent heat-resistant glass, then a few drops of vinegar are added, and then iodine is dripped in the warm fire. Boil on heat. If the urine is red, it is considered that the female wild boar has been pregnant; if it is light yellow or brown green, and the color disappears quickly after cooling, the sow is not pregnant.
Hormone injection examination Female wild boar 28-30 days after mating, their injection of benzoate oestradiol or progesterone three to four, such as female wild boar no longer estrus courtship, female mother wild boar genital swelling, indicating that the female wild boar is pregnant.
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