Vitamin B12 vs. Vitamin B12b for Cobalt Deficient Sheep

Abstract

It has been demonstrated that vitamin B_12b is as effective as vitamin B₁₂ in curing a cobalt deficiency in lambs. Cobalt deficient lambs injected with 100–125 mcg. per week of vitamin B₁₂ made excellent gains in weight over a period of 12 weeks, a length of time comparable with the usual commercial fattening period.