Impact of dietary spray-dried bovine plasma addition on pigs infected with porcine epidemic diarrhea virus

Duffy, Mark A; Chen, Qi; Zhang, Jianqiang; Halbur, Patrick G; Opriessnig, Tanja

There was no difference in rectal temperatures among the groups over time, and none of the pigs developed elevated rectal temperatures during the experiment. Diarrhea was not observed in the NEG group while individual pigs in the PEDV group and PEDV-BovSDP group had fluid-to-pasty-to-semisolid feces between dpi 2 and 6 with no significant differences among groups. In addition, vomiting was occasionally observed in single pigs during this time. By dpi 9, two PEDV pigs became lethargic and had reduced appetite. One of these pigs developed mild pasty diarrhea. Due to welfare concerns, these pigs were euthanized between dpi 11 and 13. The ADG is summarized in Table 1 . Overall, there were numerical differences among groups for the ADG: NEG pigs had the highest ADG, and PEDV pigs had the lowest ADG; however, the differences were not significant.