A trial was conduced to evaluate the effect partial or total substitution of blood plasma for hydrolyzed of intestinal mucosa of swine (HI) in diets of pigs from 21 to 49 days of age. A total of 140 piglets weaned at 21.7 ± 2.9 days of age with average weight of 5.54 ± 0.65 kg were allotted to a randomized experimental block design, with five treatments, seven replications of four animals per experimental unit. The experiment was divided in the phases from 21 to 35 days and from 36 to 49 days of age. The treatments consisted of a diet with plasma and four diets with different levels of HI 50 and HI 62 products in substitution of plasma. The partial or total plasma substitution for HI 50 and HI 62 products did not result in differences for average daily feed intake, average daily weight gain and feed:gain ratio of piglets in the evaluated periods. The absolute and relative weight of the functional viscera was not affected by treatments. There were not effects of the treatments on the characteristics of intestinal integrity in the duodenum, jejunum and ileum of piglets with 35 days of age. The products HI 50 and HI 62 could substitute total or partially the plasma in diets of pigs from 21 to 49 days of age without significant effects.
hydrolyzed of intestinal mucous membrane of swine; intestinal morphology; piglets; plasma
