Abstract
To determine if differences exist in the bioavailability of nitrogen-containing compounds in PT and FT milk, we measured both protein (micro-Kjeldahl) and amino acid (automated amino acid analyzer) content in serial samples collected during the first month of lactation. 149 samples of FT milk from 80 mothers were analyzed to construct a 95% normal limits plot for protein content (Fig.). 136 samples of PT milk from 48 mothers were superimposed on this FT plot. Analogous 95% normal limits and superimposition plots were made for amino acid content. Both protein and amino acid content of the PT samples fell within the FT 95% normal limits plot.
CONCLUSIONS:
1) FT milk has wide biological variation.
2) PT milk has similar wide variation.
3) PT and FT milk have the same nitrogen bioavailability.
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Adcock, E., Brewer, E. PROTEIN AND AMINO ACID CONTENT OF PRETERM (PT) AND FULLTERM (FT) MILK ARE THE SAME. Pediatr Res 18 (Suppl 4), 189 (1984). https://doi.org/10.1203/00006450-198404001-00575
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DOI: https://doi.org/10.1203/00006450-198404001-00575