In connection with actual production, for example, to improve the intake of dry matter or increase milk fat, etc., do not say that we actually use helium more to increase the actual production. What is the index limit?
For domestic use, yakgrass is suitable for 4-5kg per day. With appropriate roughage and concentrates, milk production is guaranteed, and there is no problem with butter or yam.
In terms of nutrition, it is your problem to be able to afford it. It is said that NDF40%, CP20% of barnyardgrass relative feed value 154, and NDF51% of whole barley corn relative feed value 122
KN95 Masks are anti-virus. KN95 masks are similar to N95 masks, except that one is a Chinese standard and the other is an American standard.
If there are two numbers of 95, it means that the protective ability of this mask is above 95%. That is to say, for tiny substances larger than 0.3 micrometers, the mask has a defensive ability of more than 95%, and it can block tiny substances larger than 0.3 micrometers outside the mask. Viruses and bacteria are generally larger than 0.7 micrometers. Therefore, using a mask such as KN95 can effectively protect against viruses.
KN95
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