What is Ox Gallstones?
Ox gallstones, cow gallstones, cattle gallstones also known as calculus bovis, niu-huang or ox bezoars are dried gallstones of cattle used in Chinese herbology. It's Chinese name is 牛黄. In Asian countries calculus bovis are harvested when cattle (Bos taurus domesticus Gmelin) are slaughtered. Their gall bladders are taken out, the bile is filtered, and the stones are cleaned and dried. In western countries they are usually discarded. Its equivalent in Vedic culture is Gorochana. It is a expensive Traditional Chinese Medicine.
The use of Ox Gallstones
ox gallstones can serve as medicine. As an important part of traditional Chinese medicine, it has instant effect. ox gallstones is universally used in hospitals in china.
After extracting the gallstones from the cattle’s intestines they have to be washed thoroughly with cold water to remove blood clots, impurities etc. After washing they are dried for two to three weeks in a dark and well ventilated environment at a temperature of approx. 20 degrees Celsius. The stones have to be moved regularly for better drying and to avoid them sticking at each other. After full drying the stones are packed in hermetically sealed bags.
Quality and classification
- Highest demand is for stones with the following features:
- yellow golden orange colour;
- stones with low specific weight;
- large stones;
- bili rubin content not less than 35%;
- There is a demand for dark stones as well, but prices are considerably lower however.
- Stones are traded in the following specifications:
- 100% whole stones
- 90% whole stones / 10% broken
- 80% whole stones / 20% broken
- 70% whole stones / 30% broken
- 60% whole stones / 40% broken
- 100% broken stones
- 100% ox gall powder
Gallstones - Description, Value and Usecow Gallstones can form in a variety of shapes and sizes. They may be round, egg shaped, square or pyramid shaped or as tube from the bile ducts.
The value of individual stones is determined by dryness, colour, texture, size and whole and broken pieces. Whole, smooth, lustrous, golden specimens attract the highest price. Dark and pitted stones as well as stones with calcium inclusions(white) are of reduced value.