Abstract
The influence of whey on the piglet performance and diarrhea incidence in three initial weeks of the initial phase was studied. Thirty suckling piglets weaned at 21 days of age and weighting 6.0 ± 0.4 kg were randomized in one of the three treatments related with whey concentration on regular diet: 1) 0 % (T1); 10 % (T2) and 20 % (T3) of whey and kept individually. The characteristics of the feces were observed and classified according to score level of diarrhea. There was no difference in daily weight gain, however, for the animals underwent the T1, feed intake of the diet was lower (p<0.05) which caused less feed conversion. The incidence and the scores for diarrhea were different (p<0.05) between the treatments. The score 3 of diarrhea, liquid feces, indicates the severity of the process and it was more frequent (p<0.05) in T1. The inclusion of whey on the diet increased the fed consumption and reduced the incidence of diarrhea in piglets at initial phase of development.
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