Effects of experimentally induced Isospora suis infection on morbidity, mortality, and weight gains in nursing pigs.
Forty-nine pigs from 6 litters were inoculated at 3 days of age with 300,000 sporulated oocysts of Isospora suis to determine the effects of neonatal coccidiosis on morbidity, mortality, and weight gain in nursing pigs. Fifty-one control pigs from 6 litters were not inoculated. Three to 5 days after inoculation, the inoculated pigs developed a nonhemorrhagic diarrhea, generally lasting 6 to 10 days, that lead to visible dehydration, loss of condition, and 20.4% mortality. Control pigs did not die or develop coccidiosis during the 3-week study and had significantly (P less than 0.05) greater body weights at 7, 14, and 21 days of age than did the inoculated pigs.
D000818:Animals; D000831:Animals, Newborn; D000833:Animals, Suckling; D001835:Body Weight; D003048:Coccidiosis / Q000401:mortality / Q000503:physiopathology / Q000662:veterinary*; D003967:Diarrhea / Q000662:veterinary; D007549:Isospora; D013552:Swine; D013553:Swine Diseases / Q000401:mortality / Q000503:physiopathology*