The Biological Value of the Protein of Field Pea Products with a Comparison of Several Methods used for This Determination

Section D. Nutritive value of milk and milk products

“…Biological values and true digestibilities recorded for casein by the balance-sheet method are 66 and 99 (465), 80 and 101(466), 79 and 84(467) and 72 (biological value) (426), all with growing rats at an 8-10 % level of protein intake, and biological values of 63 and 59 at a 20 % level of intake (468). With adult rats Mitchell & Beadles (469) obtained a value of 96 for true digestibility but the low biological value of 51, due in their opinion to a relative deficiency of casein in cystine and methionine and to the high requirement of the adult rat for them.…”

Protein Efficiency and Methionine Content of Alaska Peas Grown with the Use of Various Fertilizers1

“…At the present time the nutritive factor or factors responsible for the difference in protein efficiency of different samples of peas is not apparent. Other work in this laboratory ( 1,4) has shown that the efficiency of different samples of peas is somewhat variable.…”

“…Woods et al (8) and Peterson et ai. ( 4) have shown that methionine is the limit.ing amino acid in peas. • Sheldon et al (5) reported differences in the amino acid content of alfalfa resulting from different soil treatments.…”