Rickets is a common disease of yak, mainly caused by vitamin D defici…
Occurrence law: Occurs in most parts of the coun…
Due to the deep distribution of apple tree roots…
The planting density of seabuckt…
Rickets is a common disease of yak, mainly caused by vitamin D defici…
Occurrence law: Occurs in most parts of the coun…
Due to the deep distribution of apple tree roots…
The planting density of seabuckt…