Antigen assay with the potential to aid in diagnosis of blastomycosis.

We report results of an immunoassay for Blastomyces dermatitidis antigenuria. Sensitivity was 92.9%, and specificity was 79.

Influence of an experimental infection of nodular worms (Oesophagostomum spp.) on performance of pigs.

Four trials were conducted to determine the effect of different levels of nodular worm (Oesophagostomum spp.) infection on the performance of growing-finishing swine and on digestion and absorption of nutrients by the growing pig. In each of two growing-finishing trials, 48 crossbred pigs (average body weight 26.

Endogenous development of the swine coccidium, Isospora suis Biester 1934.

The endogenous development of Isospora suis Biester 1934 is described in piglets inoculated with 150,000 or 200,000 sporulated oocysts. Endogenous stages developed within villous epithelial cells throughout the small intestine. Two distinct types of meronts were seen in tissue sections.

Ultrastructure of macrogametogenesis of Eimeria mivati.

The development of the macrogamete of Eimeria mivati Edgar and Seibold 1964 was studied with the electron microscope. Development of the young gamont was characterized by a loss of organelles such as the apical complex, subpellicular microtubules, rhoptries and micronemes, followed by an increase in micropores, mitochondria, rough endoplasmic reticulum (rER), and Golgi complexes. Nuclear detachment bodies and canaliculi were present in maturing macrogamonts.

Eimeria Macyi sp. n. (Protozoa: Eimeriidae) from the eastern pipistrelle, Pipistrellus subflavus, from Alabama.

The subspherical to broadly ellipsoidal oocysts of Eimeria macyi measure 16 to 21 by 15 to 19 mu (mean 19.0 by 17.6 mu), and sporocysts measure 10 to 12 by 6 to 8 mu (mean 11.