Advances in dairy Research
Open Access

Ignacio R Ipharraguerre

Publications

• Research Article
  A Meta-analysis of Ruminal Outflow of Nitrogen Fractions in Dairy Cows
  Author(s): Ignacio R Ipharraguerre and Jimmy H. Clark Ignacio R Ipharraguerre and Jimmy H. Clark
  
  Data from the scientific literature and statistical methods were used to estimate the magnitude and significance of the effects of the amount and source of dietary crude protein (CP) supplements on the supply of N fractions passing to the small intestine of lactating dairy cows. The passage of total N and nonammonia N from the rumen was influenced by the source of CP in the control diet and only marginally by the source of ruminally un-degradable protein (RUP) in the dietary treatment. Even though NH3N did not appear to limit growth of the microbes, overall flow of microbial N from the rumen was depressed when RUP partially replaced other sources of CP in the diet. This response tended to be affected by the source of RUP in the dietary treatment. The passage of nonammonia, nonmicrobial N to the duodenum increased when cows consumed diets that contained RUP supplements. The magnitude o.. View More»
  DOI: 10.4172/2329-888X.1000122

  Abstract PDF

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