About product and suppliers:
            769 d-biotin feed grade products are offered for sale by suppliers on Alibaba.com, of which feed grade vitamins accounts for 3%, feed grade amino acids accounts for 1%, and feed grade enzymes accounts for 1%. 

A wide variety of d-biotin feed grade options are available to you, such as cattle, chicken, and fish. 

There are 564 suppliers who sells d-biotin feed grade on Alibaba.com, mainly located in Asia. The top countries of suppliers are India, China, from which the percentage of d-biotin feed grade supply is 1%, 98% respectively.