[Utilization efficiency of protein mixtures in young rats].

The utilization efficacy of varying proteins and proteinic mixtures was studied in rats fed artificially from the 15th to 20th day of life. Four types of proteinic mixtures were tested, containing casecyte, soybean protein, human milk proteins and cow milk serum proteins (CMSP). The highest protein utilization and body weight growth were recorded in rats given the mixture composed of casecyte and CMSP, the lowest values were obtained in the animals fed with soybean protein and CMSP. A significantly increased utilization efficacy of proteins was observed in the animals fed with soybean protein and CMSP supplemented with casecyte.