Protein feeding and balancing for amino acids in lactating dairy cattle

Vet Clin North Am Food Anim Pract. 2014 Nov;30(3):599-621. doi: 10.1016/j.cvfa.2014.07.005. Epub 2014 Sep 22.

Abstract

This article summarizes the current literature as regards metabolizable protein (MP) and essential amino acid (EAA) nutrition of dairy cattle. Emphasis has been placed on research since the publication of the National Research Council Nutrient Requirements of Dairy Cattle, Seventh Revised Edition (2001). Postruminal metabolism of EAA is discussed in terms of the effect on requirements. This article suggests methods for practical application of MP and EAA balance in milking dairy cows.

Keywords: Amino acids; Lactation; Limiting AA; Metabolizable protein; Microbial protein.

Publication types

  • Review

MeSH terms

  • Amino Acids / administration & dosage*
  • Amino Acids / pharmacokinetics
  • Animal Feed / analysis
  • Animal Feed / standards
  • Animal Husbandry / methods*
  • Animal Nutritional Physiological Phenomena
  • Animals
  • Cattle / metabolism
  • Cattle / physiology*
  • Dairying / methods*
  • Dietary Proteins / administration & dosage*
  • Dietary Proteins / pharmacokinetics
  • Female
  • Lactation / physiology*

Substances

  • Amino Acids
  • Dietary Proteins