Methionine linked to embryo survival in dairy cows

Supplementing rumen-protected 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 affect the pre-implantation embryo in a way that enhances its capacity for survival.

"Methionine is the first-limiting amino acid for dairy cattle," University of Illinois animal scientist Phil Cardoso said. "We know that the lack of methionine limits cows in producing protein in the milk. Now, we're beginning to understand that it af

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