Changes in biochemical activities of soil incubated with the nematicides oxamyl and fenamiphos     

D.J. Ross  T.W. Speir 《Soil biology & biochemistry》1985,17(1):123-125

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Variance of indirect blood pressure measurements and prevalence of hypertension in clinically normal dogs   总被引：1，自引：0，他引：1  

R L Remillard  J N Ross  J B Eddy 《American journal of veterinary research》1991,52(4):561-565

In a series of 3 studies, indirect blood pressure measurements were obtained to define normal variance, identify hypertension, and estimate the prevalence of hypertension in apparently healthy dogs. In part 1, we measured values in 5 clinically normal dogs twice weekly for 5 weeks in a home setting. Mean +/- SD systolic arterial pressure (SAP) and diastolic arterial pressure (DAP) was 150 +/- 16 and 86 +/- 13 mm of Hg, respectively. The DAP significantly (P less than 0.01) decreased with repeated measurements over the 5-week period. In part 2, we assessed the variation between blood pressures measured in a clinic vs those measured in the home. Within a 2-week period, measurements were obtained from 10 clinically normal dogs in a private veterinary clinic and again in their home. Significant differences were not observed between clinic and home measurements of SAP and DAP; however, heart rate was significantly (P less than 0.05) higher in the clinic. In part 3, SD about the SAP and DAP mean values were determined in 102 clinically normal dogs. Canine hypertensive status was determined, using statistical methods and data from 102 clinically normal dogs. Values of SAP greater than 202 mm of Hg and DAP greater than 116 mm of Hg were determined to be 2 SD beyond the mean and, therefore, were interpreted to be hypertensive. Approximately 10% of the 102 apparently healthy dogs measured in this study were considered hypertensive on the basis of these criteria. In addition, a border zone of suspected hypertension was estimated, using the mean + 1.282 SD. The SAP border zone was between 183 and 202 mm of Hg, whereas the DAP border zone was between 102 and 113 mm of Hg. Of the 102 dogs, 12 had values within these zones of suspected hypertension.  相似文献   

Changes in pelvic muscle tissues associated with hip dysplasia in dogs     

G Lust  P H Craig  J C Geary  G E Ross 《American journal of veterinary research》1972,33(6):1097-1108

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The Geology of Glacier National Park and Vicinity in Montana     

Ross CP 《Science (New York, N.Y.)》1954,119(3097):658-659

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The economics of Fasciola hepatica infections in cattle     

J G Ross 《The British veterinary journal》1970,126(4):xiii-xixv

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Fumonisin B1 concentrations in feeds from 45 confirmed equine leukoencephalomalacia cases   总被引：1，自引：0，他引：1  

P F Ross  L G Rice  J C Reagor  G D Osweiler  T M Wilson  H A Nelson  D L Owens  R D Plattner  K A Harlin  J L Richard 《Journal of veterinary diagnostic investigation》1991,3(3):238-241

During the fall of 1989 and winter of 1990, numerous reports of equine leukoencephalomalacia (ELEM) occurred from many regions of the United States. Typically, horses were consuming feed partially or entirely composed of corn and/or corn screenings. From October 1989 through May 1990, samples from 55 confirmed or suspected ELEM cases were received at the National Veterinary Services Laboratories, Ames, Iowa, for fumonisin B1 analysis. Samples from 9 cases in 1984-1985 were also obtained. Fumonisin B1, a mycotoxin produced by Fusarium moniliforme, causes ELEM, but little is known of naturally occurring toxic or safe levels in feeds. To determine what levels of fumonisin B1 in feeds are associated with ELEM, 45 selected cases were studied. The fumonisin B1 concentrations ranged from less than 1 ppm to 126 ppm, with the majority of the samples above 10 ppm. All types of feeds were included: corn, screenings, sweet feeds, and commercially pelleted rations. The length of exposure varied from 7 to greater than 35 days. Horse feed samples not associated with ELEM were also collected and analyzed. None of the nonproblem feed samples contained fumonisin B1 levels greater than 8 ppm.  相似文献   

Comprehensive patient management in shock.     

J N Ross 《Journal of the American Veterinary Medical Association》1979,175(1):92-96

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Interrelated striated elements in vestibular hair cells of the rat     

M D Ross  C Bourne 《Science (New York, N.Y.)》1983,220(4597):622-624

Unusual fixation procedures revealed a series of interrelated striated organelles in type I and type II vestibular hair cells of the rat; these organelles seemed to be less well developed in cochlear hair cells. The findings suggest that contractile elements may play a role in sensory transduction in the inner ear, particularly in the vestibular system.  相似文献   

Competency of blood coagulation in the newborn calf     

P.A. Gentry  M.L. Ross  H. Hayatgheybi   《Research in veterinary science》1994,57(3):1176

This study evaluated the haemostatic profiles of a group of 11 female and seven male calves from the day of birth until they were 60 days of age. Similar results were found for both sexes. At birth the plasma activity of the procoagulant proteins, Factors VII, VIII:C, IX, X and XI and fibrinogen were all close to the adult values. Factors VII, VIII:C and fibrinogen increased transiently during the first seven days of life but the increases were not sufficient to influence routine coagulation screening assays such as the activated partial thromboplastin time and the prothrombin time. At birth, the plasma concentration of the protease inhibitor, α₂-macroglobulin, was approximately 50 per cent of adult values and increased slowly during the first seven days of life; the plasma concentration of antithrombin III was higher than that of α₂-macroglobulin. The changes in the plasma concentration of fibronectin paralleled the changes in fibrinogen and Factor VIII:C from birth to 60 days of age; the concentrations of total plasma protein and plasma albumin remained stable and within the adult ranges throughout the 60 days. The plasma concentration of glucose increased transiently during the first 48 hours after birth.  相似文献   

Effect of transportation on blood metabolites in broilers     

W G Halliday  J G Ross  G Christie  R M Jones 《British poultry science》1977,18(6):657-659

1. Groups of 30 broilers from seven flocks were bled and weighed at the farm and a further sample of 10 broilers from each flock was transported from 8 to 16 km to the laboratory prior to bleeding and weighing. 2. One haematological and 11 biochemical analyses were made on each blood sample. 3. Although transportation did lead to significant differences in certain variables, the trends were consistent and sampling following transit is considered acceptable for clinical pathology studies.  相似文献