Methionine could be key to improving pregnancy rate in dairy cattle.

Research at the University of Illinois has shown that adding methionine to the diets of Holstein cows during the prepartum and postpartum periods may impact the preimplantation embryo in a way that enhances its capacity for survival. "Methionine is the first limiting amino acid for dairy cattle," says U of I animal scientist Phil Cardoso. "We know that the lack of methionine limits cows in producing protein in the milk.He explians