Ontario. Streptococcus pneumoniae Type 3 in an Ontario racehorse          下载免费PDF全文

Huber L  Willoughby R  Lynch J 《The Canadian veterinary journal. La revue veterinaire canadienne》1988,29(8):665-666

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Alberta. Fowl Cholera in overwintering mallard ducks   总被引：1，自引：1，他引：0       下载免费PDF全文

Bjorge R  Bolingbroke D 《The Canadian veterinary journal. La revue veterinaire canadienne》1988,29(8):666-667

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An Unusual Necrotizing cholangiohepatitis in Broiler Chickens          下载免费PDF全文

Shapiro JL  Julian RJ  Hampson RJ  Trenton RG  Yo IH 《The Canadian veterinary journal. La revue veterinaire canadienne》1988,29(8):636-639

A diagnosis of toxic necrotizing cholangiohepatitis was made in approximately 35% of a flock of 23,000 commercial broiler chickens. Affected chickens were small, and had discrete green foci throughout the liver. Seven to twelve days prior to shipping the flock to slaughter, premixes containing oxytetracycline, monensin, and 3-nitro-4-hydroxyphenylarsonic acid had been added to the ration because the birds had wet droppings and were growing slowly. The 3-nitro-4-hydroxyphenylarsonic acid had been inadvertently incorporated at ten times the recommended level. Liver and kidney of affected birds had elevated levels of total arsenic, and special strains demonstrated arsenic in necrotic foci in liver. Histologically there was marked dilation of intrahepatic bile ducts, and patchy necrosis and hyperplasia of the bile duct epithelium. Damage to bile ducts may have been a toxic manifestation of altered metabolism and excretion of the three drugs being fed to birds suffering from intercurrent diarrhea and/or undefined interactions among the drugs.  相似文献   

Let's stop loose talk about the "Information Explosion"          下载免费PDF全文

White ME 《The Canadian veterinary journal. La revue veterinaire canadienne》1988,29(8):619-620

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Was there a prelude to the dinosaurs' demise?     

Kerr RA 《Science (New York, N.Y.)》1988,239(4841):729-730

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Hypercube Breaks a Programming Barrier: A deceptively simple approach allows a massively parallel computer to approach the maximum theoretical speedup     

Waldrop MM 《Science (New York, N.Y.)》1988,240(4850):286

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There's (Plastc) Gold in Them Thar Landfills: Vanishing landfill space will drive localities to recycle more. The market for used plastic, however, could be stifled by demands that degradable materials be used for packaging     

Crawford M 《Science (New York, N.Y.)》1988,241(4864):411-412

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Du Pont Stakes Claim on Superconductor Rights: A fight looms over patent rights to the first high-temperature superconductor, as several companies hope to develop the material     

Pool R 《Science (New York, N.Y.)》1988,241(4870):1156

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A minor identify crisis     

Sun M 《Science (New York, N.Y.)》1988,241(4870):1155

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Neutrinos: physics of massive neutrinos     

Witherell MS 《Science (New York, N.Y.)》1988,241(4869):1108

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