Prevalence of Nematodirus battus in Sheep in New Brunswick and Nova Scotia          下载免费PDF全文

Smith HJ  McIntosh S 《The Canadian veterinary journal. La revue veterinaire canadienne》1988,29(4):385

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Guttural pouch hemorrhage associated with lesions of the maxillary artery in two horses   总被引：2，自引：2，他引：0       下载免费PDF全文

Smith KM  Barber SM 《The Canadian veterinary journal. La revue veterinaire canadienne》1984,25(6):239-242

A two year old Thoroughbred gelding, presented with guttural pouch hemorrhage, had the internal and external carotid arteries ligated. Guttural pouch mycosis was detected on endoscopic examination. After one month of topical antifungal therapy, the horse was returned and euthanized because of recurrent epistaxis. A bacterial infection of the guttural pouch with associated ulceration and hemorrhage from the maxillary artery was found at necropsy.

A two year old grade gelding had ulceration and hemorrhage from the external carotid artery. Utilizing balloon-tipped catheters and arterial ligation, hemestasis was achieved in the internal carotid artery and the external carotid artery and its branches. Mycotic ulceration of the internal carotid artery was detected endoscopically and treated with local antifungal therapy for one month. Thirty-three days postoperatively the horse returned, bleeding from a lesion in the maxillary artery. The rationale for surgical intervention to prevent epistaxis associated with guttural pouch mycosis and possible etiologies for postsurgical epistaxis are discussed.

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Hypocalcaemia associated with high dose rates of zinc oxide to lactating dairy cows     

Smith BL  Collier AJ  Lawrence RJ  Towers NR 《New Zealand veterinary journal》1984,32(4):48-50

Clinical hypocalcaemia was associated with single doses of three oi more days; supply of zinc oxide to dairy cows for facial eczema control. Experimental hand dosing of a single dose of zinc oxide (40 and 120 mg Zn/kg b wt) to Jersey cows caused a significant drop in serum calcium concentration at 24 h followed by a rise to concentrations higher than controls at subsequent samplings over four days. At the highest zinc dose rate, 78% of serum calcium values were equal to or lower than the lowest control value at 24 h post dosing. Serum magnesium concentrations had a reciprocal relationship to the calcium levels at all samplings. Serum zinc concentrations were most elevated over the 48 h post dosing, returning to normal levels at the fifth day. Following the highest zinc dose milk yields were reduced by approximately 1.5 kg milk/cow/day for 48 h. Similar results were obtained when cows grazed pasture on which large amounts of zinc oxide had been sprayed.  相似文献   

A Crimp in the Pentagon's Space Plans: By launching some payloads on expendable rockets, DOD may mitigate long-term impacts of the shuttle disaster     

Smith RJ 《Science (New York, N.Y.)》1986,231(4739):666-667

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Limited ASAT Proposal Gains Backers: Pressured by a congressional ban on ASAT tests, some Administration officials express interest in a limited arms agreement, but the Air Force remains uninterested     

Smith RJ 《Science (New York, N.Y.)》1986,231(4736):331-332

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DOD Backtracks on Grants to SDI Critics     

Smith RJ 《Science (New York, N.Y.)》1986,232(4753):929

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GAO Blasts Bigeye Chemical Weapon: A new study says that technical problems and inconsistencies in test results indicate that the bomb should not be produced     

Smith RJ 《Science (New York, N.Y.)》1986,232(4757):1493-1494

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Inquiry Faults Shuttle Management: Rogers Commission calls for sweeping reforms in NASA's operations, as well as substantial changes in the design of the solid-rocket seals     

Smith RJ 《Science (New York, N.Y.)》1986,232(4757):1488-1489

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Phalangeal and navicular bone hypoplasia and hoof malformation in the hind limbs of a foal          下载免费PDF全文

Smith DR  Leach DH  Bell RJ 《The Canadian veterinary journal. La revue veterinaire canadienne》1986,27(1):28-30,31-34

Anatomical anomalies in the hind feet of a seven month old Appaloosa foal were identified and investigated through the use of gross anatomical dissection, radiography and angiography. Abnormalities were restricted to the distal aspect of both hind legs, the right hind leg being more severely affected. Anatomically the right foot resembled that of an equine fetus of approximately 120 days gestational age. Disruption of vascular perfusion to hoof structures was evident in both hind legs and was related to areas of abnormal bone conformation as well as to areas of abnormal ossification and calcification. Phalangeal and navicular bone hypoplasia were apparent as were soft tissue and joint anomalies. Although the etiology of the defects identified remains obscure, several theories are suggested, namely heritability, acquired defects and the possible teratogenic effects of clenbuterol.  相似文献   

Midgetman Missile Plans Generate Political Debate: A new ICBM has been designed for use as a strategic reserve, although the Pentagon may not intend to use it that way     

Smith RJ 《Science (New York, N.Y.)》1986,232(4755):1186-1188

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