title: [Sensitivity of different biological methods for differentiating the protein value of various foods].
abstract: The nutritive value of proteins from different sources was studied. The value for PER, weight of the animals, IEC, NPR, NDpCal%, digestibility (D), and biological value (BV) was determined with diets containing 7% of total protein. The best results were obtained for milk, opaque-2 corn, rice and soybeans. The association of rice + soybeans was optimum. The results suggest also that it is advantageous to supplement wheat with cassava. Comparison of the results obtained by the different biological methods, classified by sensitivity for different protein qualities, revealed that the best methods are weight gain, PER and IEC better than NPR and NDpCal%, which in turn were better than BV, food intake and D (P less than 0.01).
mesh_terms: D000818:Animals; D001835:Body Weight; D004044:Dietary Proteins / Q000032:analysis; D002523:Edible Grain; D007887:Fabaceae; D009753:Nutritive Value; D010946:Plants, Medicinal; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D004044:Dietary Proteins
vernacular_title: Sensibilidade de diferentes métodos biológicos para diferenciar valor protéico de alguns alimentos.