Winter scours in sheep - an obsolete term     

Orr MB  Jopp A 《New Zealand veterinary journal》1989,37(1):38-39

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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   

Neurotoxic syndrome of sheep due to the ingestion of plants of the Mediterranean scrub: clinical, histopathological, histochemical and ultrastructural observations     

A Leoni  A M Nieddu  F Guarda  M Castagnaro  A Firinu  P Cossu  V Mingioni 《Schweizer Archiv für Tierheilkunde》1989,131(6):361-368

A severe neurological disorder was observed during a very dry season, in sheep pasturing on land with mediterranean vegetation. During the crisis, lasting 5-20", ataxia and convulsions were the main clinical signs. Brain congestion, spongy appearance of the liver, interstitial nephritis and hyperpigmentation of visceral lymph nodes were the most important macroscopic lesions. Histopathological, histochemical and ultrastructural findings confirmed liver and kidney lesions and showed considerable neurovisceral storage of lipofuscin. Although further toxicological and experimental studies are needed to elucidate the origin of the disease, the Authors attribute the outbreak of the neurological syndrome to the ingestion of a neurotoxin containing plant.  相似文献   

The cervical vertebral column of horses--a clinico-radiological study     

H Gerber  G Ueltschi  M Diehl  U Schatzmann  R Straub 《Schweizer Archiv für Tierheilkunde》1989,131(6):311-321

For various anamnestic reasons the cervical vertebral column of 78 horses was examined radiologically. Statistical comparisons showed that male "warmbloods" were more frequently affected than was expected. Our horses were older than comparable animals in the international literature. Independently of their history the radiologic diagnosis of "cervical spondylarthrosis" was established in 56 horses. Arthrosis and other conditions were clinically manifested by spinal ataxia (44 horses) or mechanical impairment of the neck's mobility (21 horses). 10 of the arthrotic patients had synovial cysts causing compression of the spinal cord. 79 percent of all dorsal intervertebral arthrotic joints were found in the caudal column (C6/7 to C7/Th1). With 38 percent, C6/7 was the most frequently affected joint. Clinical and radiological findings could be compared with patho-anatomic results in 29 horses. The correlation was satisfactory.  相似文献   

Diurnal and individual variations in bile acids in the plasma of normal dairy cows     

S V Abdelkader  E Ropstad 《Acta veterinaria Scandinavica》1989,30(2):221-228

Blood samples were collected every 2 h during a 24 h period from 6 cows of one herd and 10 cows of another herd. In a third herd 9 cows were sampled every 2 h from 6 a.m. to 8 p.m. Concentrations of total bile acids, acetoacetate, glucose and free fatty acids were determined in blood plasma. A marked difference in individual bile acid concentrations and patterns of diurnal variation was found. For most cows the highest bile acid values were observed between 2 and 6 a.m. (overall mean (+/- SD) at 6 a.m.: 104 +/- 84 mumol/l, range: 20-307 mumol/l). Fourteen cows with a bile acid value greater than 90 mumol/l at 6 a.m. ("high BA") were characterized as a group by showing a pronounced decrease in the mean bile acid concentration after morning feeding. In the group of 11 cows with a 6 a.m. bile acid value less than 90 mumol/l ("low BA") the time of day did not contribute significantly to the bile acid variation. For the "high BA" group a nearly synchronous variation between the mean values of the 3 feeding dependent parameters (acetoacetate, glucose and free fatty acids) and the mean values of bile acids was found. The within animal coefficients of correlation between bile acids and the feeding dependent parameters were significantly higher in the "high BA" group than in the "low BA" group. No direct connection was found between bile acid levels and the quantity of concentrates fed or the individual milk yield.  相似文献   

A gastric motility disorder in a dog          下载免费PDF全文

Flock MA 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(11):904

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An epidemiological investigation into the reported incidents of dog biting in the City of Guelph   总被引：2，自引：1，他引：1       下载免费PDF全文

Szpakowski NM  Bonnett BN  Martin SW 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(12):937-942

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Saskatchewan. Conjunctivitis associated with Staphylococcus hyicus subsp. hyicus in an ostrich          下载免费PDF全文

Chirino-Trejo M  Wheler C 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(9):759

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Atlantic Canada. Bat-induced rabies in terrestrial mammals in Nova Scotia and Newfoundland          下载免费PDF全文

Webster WA  Casey GA  Charlton KM 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(8):679

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Atlantic Canada. Streptococcus suis antimicrobial susceptibility          下载免费PDF全文

Sanford SE  Tilker AM 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(8):679

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