Table 4.

Effect of feeding egg-yolk antibody on pigs’ growth performance, plasma urea nitrogen, intestinal morphology and protection against diarrhea

Amount or % of egg-yolk antibody in diet	Observations relative to control				Age of pig (d)	References
	No of pigs with diarrhea after 48 h (%)	Weight gain (%)	PUN (%)	Villous height:crypt depth (%)
1.5 g	Decreased by 50	Increased by 145.8	-	-	3	Marquardt et al., 1999
0.5 g	Decreased by 100	Increased by 350	-	-	21	Marquardt et al., 1999
0.5%	-	Increased by 18.4	Decreased by 9.4	-	10	Owusu-Asiedu et al., 2002
0.5%	Decreased by 51.9	Increased by 50	Decreased by 11.9	Increased by 82.4	10	Owusu-Asiedu et al., 2003

PUN, plasma urea nitrogen.