X chromosome mosaicism and infertility in a mare          下载免费PDF全文

Reid SW  Weatherston JF  Robinson BN 《The Canadian veterinary journal. La revue veterinaire canadienne》1987,28(8):533-534

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Parapoxvirus infections in New Zealand farmed red deer (Cervus elaphus)     

Horner GW  Robinson AJ  Hunter R  Cox BT  Smith R 《New Zealand veterinary journal》1987,35(4):41-45

Outbreaks of infection due to a parapoxvirus were reported on eight New Zealand deer farms. Scabby lesions were seen variably on the muzzle, lips, face, ears and neck of red deer (Cervus elaphus) with morbidity rates reaching 100%. On three farms multifocal lesions were also present on the velvet. Deaths were reported on two properties where the lesions were extensive and secondary bacterial infections had occurred. On one of these farms multifactorial disease was suspected. Poxvirus particles were seen by negative contrast electron microscopy in scab material from all eight properties. Morphologically the deer virus resembled a parapoxvirus, but restriction endonuclease analysis showed its DNA fragment patterns were distinct from those of orf (contagious ecthyma) virus.  相似文献   

Spotting the Atoms in Grain Boundaries: To know how the boundaries between crystals affect polycrystalline structural and electronic materials, it is necessary to know quantitatively where the atoms are     

Robinson AL 《Science (New York, N.Y.)》1986,233(4766):842-844

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Electron Microscope Inventors Share Nobel Physics Prize: Ernst Ruska built the first electron microscope in 1931; Gerd Binnig and Heinrich Rohrer developed the scanning tunneling microscope 50 years later     

Robinson AL 《Science (New York, N.Y.)》1986,234(4778):821-822

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Tunable Far IR Molecular Lasers Developed: Stimulated Raman scattering associated with a series of closely spaced rotational states is the key to wavelength tunability     

Robinson AL 《Science (New York, N.Y.)》1985,227(4688):736-737

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Fermilab Tests Its Antiproton Factory: Physics experiments with the world's highest energy proton antiproton collider will begin a year from now     

Robinson AL 《Science (New York, N.Y.)》1985,229(4720):1374-1376

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GaAs Readied for High-Speed Microcircuits     

Robinson AL 《Science (New York, N.Y.)》1983,219(4582):275-277

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Experimental transmission of intestinal coccidiosis to piglets: clinical, parasitological and pathological findings.   总被引：2，自引：0，他引：2       下载免费PDF全文

Y Robinson  M Morin  C Girard    R Higgins 《Canadian journal of veterinary research》1983,47(4):401-407

Twenty-eight piglets coming from a "specific pathogen free" herd were inoculated at three days of age with 50 000 or 100 000 sporulated oocysts of Isospora suis. Fecal samples were examined for oocyst shedding daily and several clinical parameters were recorded. Ten piglets were used as normal controls. Groups of piglets were euthanized from three days to 12 days postinoculation and routine necropsies were performed. Bacteriological, virological, parasitological and histopathological examinations were made on the intestinal tracts. The incubation period was four to five days. Clinical signs and microscopic intestinal lesions observed in the experimentally infected animals were similar to those reported in spontaneous cases of porcine neonatal coccidiosis. Lesions of villous atrophy in the small intestine seemed to result from the destruction of villous epithelial cells mainly during the peak of asexual reproduction which occurred around four to five days postinoculation. Intracellular coccidial organisms were difficult to find during the late atrophic and villous regrowth stages of the intestinal lesions. The prepatent period varied from four to seven days and the most common was five days. Eighty percent of the piglets kept alive more than four days postinoculation have shed oocysts. Piglets dosed with old sporulated oocysts (ten months old) shed many more oocysts than those infected with a fresh inoculum (less than two months old). The patent period was not determined precisely with the design of the experiment but some of the infected piglets shed oocysts for at least five days.  相似文献   

An osteodystrophy apparently caused by vitamin D deficiency in growing pigs     

Thompson KG  Robinson BM 《New Zealand veterinary journal》1989,37(4):155-157

An osteodystrophy with features of both rickets and fibrous osteodystrophy was diagnosed in growing pigs housed indoors and fed on a diet deficient in vitamin D. Affected pigs were severely lame and preferred to remain recumbent. At necropsy, the long bones had reduced breaking strength and in one five-month-old pig the articular surfaces of both proximal humeri were indented due to collapse of subchondral bone. Microscopic changes in the bones included prominent osteoclastic activity in the proximal metaphyses, variable myelofibrosis, trabecular microfractures, and focal thickening of the hypertrophic zone in some growth plates. Treatment consisted of an injection of Vitamin D3, addition of dicalcium phosphate to the diet for 18 days and long-term supplementation of the diet with fat-soluble vitamins. This is the first report of an osteodystrophic disease in pigs in New Zealand.  相似文献   

Prospects for proprietary synchrotron radiation research     

Robinson AL 《Science (New York, N.Y.)》1979,203(4375):37

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