Thacker B J, Leman A D, Hurtgen J P, Sauber T E, Joo H S
Am J Vet Res. 1981 May;42(5):865-7.
Reproductive tracts were recovered from 209 sow and 32 gilt carcasses at slaughter; animals had been pregnant not less than 27 days. Of 241 litters examined, 28 (11.6%) contained one or more porcine parvovirus (PPV)-infected fetuses, as determined by immunofluorescent microscopy. The frequencies in sow and gilt litters were 12.0% and 9.4%, respectively. The PPV antigen was detected in 219 of 334 (65.6%) dead or mummified fetuses and in 12 of 2,172 (0.5%) live fetuses examined. The 18 litters which contained only dead or mummified fetuses were infected with PPV. As the percentage of litter mummification increased, the likelihood of finding PPV increased. The PPV antibody was detected in ovarian follicular fluids of 94.3% of the sows and 78.1% of the gilts. These findings indicate that PPV is highly associated with fetal mummification and that some pregnant gilts and sows are susceptible to infection.
在屠宰时从209头母猪和32头后备母猪的 carcasses 中回收生殖道；这些动物已怀孕不少于27天。在检查的241窝仔猪中，通过免疫荧光显微镜检查确定，28窝（11.6%）含有一个或多个感染猪细小病毒（PPV）的胎儿。母猪和后备母猪窝中的频率分别为12.0%和9.4%。在检查的334个死胎或木乃伊化胎儿中的219个（65.6%）以及2172个活胎中的12个（0.5%）中检测到PPV抗原。仅包含死胎或木乃伊化胎儿的18窝感染了PPV。随着窝木乃伊化百分比的增加，发现PPV的可能性增加。在94.3%的母猪和78.1%的后备母猪的卵巢卵泡液中检测到PPV抗体。这些发现表明PPV与胎儿木乃伊化高度相关，并且一些怀孕的后备母猪和母猪易受感染。
