The Sex of the Host as a Factor in Plasmodium gallinaceum Infections in Young Chicks     

Bennison BE  Coatney GR 《Science (New York, N.Y.)》1948,107(2771):147-148

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Vitamin E, selenium and polyunsaturated fatty acids in clinically normal grower (9-16 weeks old) pigs and their feed: their relationship to the vitamin E/selenium deficiency ("VESD") syndrome     

Rammell CG  Pearson AB  Bentley GR 《New Zealand veterinary journal》1988,36(3):133-137

Vitamin E, selenium and polyunsaturated fatty acids (PUFAs) were determined in feed used at three piggeries over.a four week period and compared with corresponding concentrations in clinically normal grower pigs at slaughter. Mean values were vitamin E: 59 IU/kg (feed), 6 micromol/kg (liver), 1.7 micromol/l (serum); and selenium: 310 microg/kg (feed), 5200 nmol/kg (liver), 1700 nmol/l (blood). Alpha-tocopherol accounted for 80% of the mean vitamin E activity in the feed and over 95% that in the liver and serum. The mean ratio of PUFA to total fatty acid (FA) in the feed (38%) was similar to that in the serum (36%) and liver (39%), but the ratio of peroxidisable PUFA (PPUFA) to FA increased from 1.7% in the feed to 4.2% in the serum and 10.8% in the liver. The ratio of alpha-tocopherol (mmol) to PPUFA (mol) in the liver varied from 0.16 to 0.48. The relationship of these data to the VESD syndrome is discussed in the light of other published data.  相似文献   

The ability of docking fluids containing chlorfenvinphos to prevent the establishment of experimentally-induced flystrike     

Heath AC  Bishop DM  Bentley GR 《New Zealand veterinary journal》1988,36(4):200-201

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Selenium, vitamin E and polyunsaturated fatty acid concentrations in goat kids with and without nutritional myodegeneration     

Rammell CG  Thompson KG  Bentley GR  Gibbons MW 《New Zealand veterinary journal》1989,37(1):4-6

Mean selenium and vitamin E (alpha-tocopherol) concentrations in the liver, myocardium and skeletal muscle of nine goat kids with nutritional myodegeneration (NMD) were significantly lower than those in a group of nine kids dying from other causes. Each of the 18 kids was from a different property in the southern half of the North Island. The polyunsaturated fatty acid composition of the liver, myocardium and skeletal muscle was not significantly different between the two groups, but the overall level of peroxidisable polyunsaturated fatty acids appeared high in both groups. A further 21 kids with confirmed NMD and live 'controls', submitted as routine cases to Palmerston North Animal Health Laboratory, were included with the above 18 kids in a comparison of liver selenium and alpha-tocopherol concentrations. Kids with NMD had liver selenium concentrations ranging from 170-1100 (mean = 380) nmol/kg and alpha-tocopherol from 0.7-11.0 (mean =2.2) micromol/kg. In control kids, the liver selenium concentration ranged from 530-4300 (mean = 1220) nmol/kg and a-tocopherol from 1.7-14.0 (mean = 5.6) pmollkg. Although these ranges overlapped, the results suggest that liver selenium concentrations <500 nmol/kg and alpha-tocopherol concentrations <2.5 micromol/kg should be regarded as deficient. Liver selenium concentrations from 500-1100 nmol/kg and alpha-tocopherol concentrations from 2.5-10 micromol/kg should be considered marginal. Goat kids appear to require more selenium than lambs or calves which may explain the higher prevalence of NMD in kids. In some cases, however, the disease is associated with low alpha-tocopherol suggesting that supplementation with selenium alone may not always be sufficient.  相似文献   

Viruses and virus-like particles detected during examination of feces from calves and piglets with diarrhea   总被引：1，自引：1，他引：0       下载免费PDF全文

Durham PJ  Hassard LE  Norman GR  Yemen RL 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(11):876-881

A total of 763 fecal or intestinal samples from diarrheic calves and piglets were examined for viral content by immunofluorescence, electron microscopy or cell culture. Routine fluorescent antibody and cultural tests detected rotavirus (n=126), coronavirus (n=80) and bovine viral diarrhea virus (n=13). Electron microscopy detected rotaviruses (n=24) and coronaviruses (n=17) not identified by standard fluorescent antibody tests. Other viruses detected by electron microscopy included Breda virus-like particles (n=49), astroviruses (n=1), caliciviruses (n=1), rhabdoviruses (n=1), parvoviruses (n=2), enteroviruses (n=3), togavirus-like particles (n=2), and “chained” particles (n=5). Mixtures of several of the viruses were detected in a number of fecal samples.

The survey emphasized the value of electron microscopy as a broad-spectrum diagnostic tool.

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Tracheal foreign body in a cat          下载免费PDF全文

Levitt L  Clark GR  Adams V 《The Canadian veterinary journal. La revue veterinaire canadienne》1993,34(3):172-173

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Secondary phosphorus poisoning in dogs     

Gumbrell RC  Bentley GR 《New Zealand veterinary journal》1995,43(1):25-26

Subsequent to a possum (Trichosurus vulpecula) poisoning operation purportedly using 1% phosphorus baits, six dogs with access to poisoned possums died of phosphorus poisoning. Two dogs survived, following treatment with oral copper sulphate and parenteral vitamin K. Clinical signs included depression, jaundice, vomiting and bloody diarrhoea. Post-mortem lesions included large areas of subcutaneous, interstitial and intermuscular haemorrhage, subserosal haemorrhage and liver degeneration. Free phosphorus was detected in the ingesta of three of the dogs which died up to 7 days after the last of the poison was laid. Analysis of two batches of baits used showed P levels of 1.17% and 1.24%.  相似文献   

Vapor phase explosions: elementary detonations?     

Fowles GR 《Science (New York, N.Y.)》1979,204(4389):168-169

Although liquid-vapor explosions are widely observed, there is no established explanation for their initiation and propagation. Thermodynamics admits the possibility that superheated liquids can support detonations analogous to those that occur in chemical explosives. For liquid methane superheated 50 K above its boiling point at 1 atmosphere, the energy of explosion is 2 to 3 percent of that of TNT.  相似文献   

The Empire of Chance. How Probability Changed Science and Everyday Life. Gerd Gigerenzer, Zeno Swijtink, Theodore Porter, Lorraine Daston, John Beatty, and Lorenz Kruger. Cambridge University Press, New York, 1989. xviii, 340 pp. $44.50. Ideas in Context     

Shafer GR 《Science (New York, N.Y.)》1990,247(4939):225

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Does clinical experience make up for failure to keep up to date?     

Norman GR  Eva KW 《Equine veterinary journal》2007,39(4):319-321

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