Deer Fetus in "Compendium of Materia Medica". It refers to the fetus or placenta of deer species such as Cervus elaphus Linnaeus or C.nippon Temminck. There are two ways to collect deer fetus: one is to collect the fetus, including the placenta and amniotic fluid, by cesarean section or miscarriage during the deer's pregnancy, which is called "water fetus"; the other is to collect the newborn fetus that has not been breastfed or stillborn deer. The former is more expensive. After collecting the deer fetus, there are two processing methods. One method is to wash it with water, remove the fetal hair, and then put it in a pot with 15kg of water and dry it by roasting; the other method is to soak it in wine for 2-3 days, and then dry it directly by fire.
[Processing Method] Deer Fetus Powder in "Classic of Materia Medica": "Roast and scorch with yellow." Currently, take the original medicinal material, remove impurities, chop it into small pieces, place it on an iron wire sieve, roast it on a smokeless stove fire, after it is hot, evenly apply lard (or sesame oil) to let the oil penetrate into the deer fetus pieces, continue to apply oil and roast, repeat this process until the deer fetus pieces turn yellow and become crispy, remove from the fire, take it out, let it cool, and grind it into powder.
[Characteristics of Medicinal Material] Deer Fetus Powder is brownish-red powder with a slight fishy smell.
[Processing Effects] Deer Fetus has a sweet and salty taste, and is warm in nature. It enters the liver, kidney, and heart meridians. It has the functions of warming the kidney and strengthening yang, nourishing blood and generating essence, regulating menstruation and stopping bleeding. It is used for kidney yang deficiency, insufficient essence and blood, soreness and weakness of the waist and knees, fatigue and wasting, irregular menstruation, cold uterus and infertility, and excessive menstrual flow with leukorrhea. For example, Deer Fetus Pill is used to treat fatigue and wasting (Shen's Zunsheng Book).
[Processing Research] According to reports, there is no significant difference in the content of amino acids, vitamin A, vitamin B, vitamin B, progesterone, and estradiol sulfate between deer fetus and deer fawn. In addition, experiments using the method of measuring the weight of mouse uterus showed that feeding high doses of deer fetus or deer fawn to mice for 3 weeks can increase the weight of the mouse uterus. Experiments on the rat uterine smooth muscle showed that both deer fetus and deer fawn can reduce the amplitude of contraction of the rat uterine smooth muscle, and their effects are similar.
According to another report, the two processing methods of deer fetus in Cervus nippon were compared using indicators such as powder yield, crude protein, crude fat, amino acids, trace elements, vitamins, and hormones. It was believed that the drying method was superior to the decoction method, and the drying method should be preferred for the processing of deer fetus capsules and other Chinese patent medicines containing deer fetus. Drying method: take fresh deer fetus, cut it open, collect the amniotic fluid, heat and concentrate it to a paste; cut the deer fetus and fetal membranes into small pieces, dry them in a 65℃ oven until constant weight, crush them, and mix well.
