Simple Summary We review the role of cobalt and vitamin B12 in animals, especially in
ruminants. Vitamin B12 is an essential part of the enzyme systems involved in multiple …

The present review focuses on methyl donor metabolism and nutrition in the periparturient
and lactating dairy cow. Methyl donors are involved in one-carbon metabolism, which …

The objective of this study was to evaluate the effects of supplementing a metabolizable
protein (MP)-deficient diet with rumen-protected (RP) Met, Lys, and His, individually or …

A meta-analysis of published studies was used to investigate the effect of rumen-protected
methionine (RPM) added to the diets of lactating dairy cattle on dry matter intake, milk …

The objectives of our study were to evaluate the productive response to methionine
supplementation in lactating dairy cows and to define a relationship between metabolizable …

Dairy cattle undergo dramatic metabolic, endocrine, physiologic and immune changes
during the peripartal period largely due to combined increases in energy requirements for …

Background B and K2 vitamins, essential nutrients in host metabolism, can be synthesized
by the rumen microbiome in ruminants and subsequently absorbed by the host. However …

Overproduction of reactive oxygen species (ROS) is a well-known phenomenon
experienced by ruminants, especially during the transition from late gestation to successful …

Peripartal cows likely require greater amounts of Met not only at the tissue and cell level for
methylation reactions but also for milk protein synthesis after calving. Thirty-nine Holstein …

Intersections in hepatic methyl group metabolism pathways highlights potential competition
or compensation of methyl donors. The objective of this experiment was to examine the …