Egg White Hydrolysate Retains the Nutritional Value of Proteins and Is Quickly Absorbed in Rats

Table 3

Faecal and urine nitrogen content in rats fed a diet containing protein or hydrolysate of milk whey or egg white.

	Milk whey		Egg white
	Protein	Hydrolysate	Protein	Hydrolysate
Faecal weight (dry·g/5 days)	8.72 ± 0.18	8.58 ± 0.15	8.44 ± 0.11	8.50 ± 0.07
Urine volume (mL/5 days)	73.6 ± 14.1	68.5 ± 8.7	70.4 ± 11.4	57.2 ± 6.2
Faecal nitrogen (mg/5 days)	43.5 ± 0.9	46.6 ± 1.0	44.1 ± 0.9	41.4 ± 1.9
Urine nitrogen (mg/5 days)	135 ± 8^a	133 ± 16^a	84.3 ± 11.5^b	85.8 ± 7.3^b

Data are mean ± SE of six rats. Superscript letters indicate a significant difference (Tukey’s test, ).