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Biomedical subjects

R M Robinson

Publications and source records attributed to R M Robinson.

At least 37 records · Page 2Linked to original sources
PubMed1982

Waterfowl mortality caused by aflatoxicosis in Texas.

Waterfowl mortality caused by aflatoxicosis occurred in two separate areas in Texas during the 1977-78 wintering season. The first outbreak occurred in snow geese (Anser caerulescens) on the Gulf Coast prairies, followed by an outbreak in mallards (Anas platyrhynchos) in the north-central portion of the state. Aflatoxin B1 levels in geese were 500 ng/g (dry weight). Aflatoxin B1 levels in the second mortality were 10-250 ng/g (dry weight). The exact source of the toxin was not demonstrated in the first outbreak, but in the second outbreak was traced to waste peanuts, which constituted a major portion of the diet of wintering waterfowl in north-central Texas. Aflatoxin B1 levels in the field peanuts collected in the general areas were 110 ng/g.

Aflatoxin B1↗
PubMed1980

Small mammals and white-tailed deer as possible reservoir hosts of Brucella abortus in Texas.

Four hundred sixty-eight wild mammals were collected from four ranches in Texas where Brucella-infected cattle herds are maintained, and examined as possible reservoir hosts for Brucella abortus. Seventy-one serums from five species were tested for Brucella antibodies. Liver and spleen from 453 mammals (14 species) were cultured for B. abortus. Results of the serologic and bacteriologic examination of rodents, opossums (Didelphis virginiana), raccoons (Procyon lotor) and white-tailed deer (Odocoileus virginianus) did not provide evidence of an extrabovine reservoir of B. abortus.

Animals↗
PubMed1980

Lagochilascaris major in a raccoon.

A granulomatous mesenteric mass containing numerous adult Lagochilascaris major was found in a raccoon near Houston, Texas. This is the first report of a Lagochilascaris in a species other than the opossum in North America.

Animals↗
PubMed1980

An experimental infection of Trypanosoma cruzi in striped skunks (Mephitis mephitis).

Four adult (3 male, 1 female) captive-raised, decented, striped skunks (Mephritis mephitis) were infected experimentaly with a field strain (Texas-Tulane) of Trypanosoma cruzi, originally isolated from a naturally-infected dog. Two skunks were injected intravenously with approximately 4.5 x 10(6) viable T. cruzi trypomastigotes. Two skunks were inoculated per os and per conjunctivum with 10 ml of phosphate buffered saline containing macerated, T. cruzi-infected triatomine intestines and intestinal contents. The skunks had minimal clinical manifestations with no mortalities occurring during 46 days post-exposure. Sera from all skunks were positive at 24 days post-inoculation (PI) by the direct and latex agglutination tests. Blood cultures from the 4 skunksd were positive for T. cruzi at day 24 PI and 3 were positive at day 46 PI. All skunks had mild to moderately severe chronic granulomatous myocarditis of the atria and ventricles. Typical T. cruzi amastigotes were present within myocardial fibers in 3 of 4 skunks.

Animals↗
PubMed1978

Elaeophorosis in sika deer in Texas.

Elaeophora schneideri was found in sika deer (Cervus nippon) from several areas in Texas. The parasite produced unilateral tumorous masses on the head and/or feet. This is the first report of E. schneideri in Texas.

Animals↗
PubMed1978

Naturally occurring hepatozoonosis in a coyote.

Schizonts of Hepatozoon sp. were found in the myocardium of an adult cyote (Canis latrans) collected from the Aransas National Wildlife Refuge, Austwell, Texas. This constitutes the first time hepatozoonosis has been recorded in Canidae in the Western Hemisphere.

Animals↗
PubMed1976

Hepatic fatty cirrhosis in Texas white-tailed deer.

Hepatic fatty cirrhosis (HFC) has been known to occur in certain domestic livestock species since 1931. Early studies in Texas indicated that HFC was restricted to five western counties. Recently HFC was identified in white-tailed deer (Odocoileus virginianus texanus) in South Texas for the first time. Of the deer examined, 25% were affected. The etiology of HFC was not determined.

Animals↗