Formation of a competitive antagonist of vitamin B12 by oxidation     

BEILER JM  MOSS JN  MARTIN GJ 《Science (New York, N.Y.)》1951,114(2953):122-123

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CHEMICAL STUDIES OF PODZOLIC ILLUVIAL HORIZONS     

A.E. MARTIN  R. REEVE 《European Journal of Soil Science》1958,9(1):89-100

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RADIOGRAPHIC DIAMETER OF THE COLON IN NORMAL AND CONSTIPATED CATS AND IN CATS WITH MEGACOLON     

TIM TREVAIL  DANIELLE GUNN‐MOORE  INÉS CARRERA  EMILY COURCIER  MARTIN SULLIVAN 《Veterinary radiology & ultrasound》2011,52(5):516-520

Radiographs of 50 cats with no history of gastrointestinal disease were evaluated to establish a normal reference range for radiographic diameter of the feline colon. Thirteen cats with constipation and 26 with megacolon were also evaluated and compared with the normal cats to characterize the accuracy of the reference range and to identify a cutoff to distinguish constipation from megacolon. A ratio of maximal diameter of the colon to L5 length was the most repeatable and accurate measurement. A ratio <1.28 is a strong indicator of a normal colon (sensitivity 96%, specificity 87%). A value >1.48 is a good indicator of megacolon (sensitivity 77%, specificity 85%).  相似文献   

Incidence of soil-borne plant pathogens isolated from barley and winter wheat, and other crops in the rotation, on Prince Edward Island     

M. J. CELETTI  H. W. JOHNSTON  J. KIMPINSKI  H. W. PLATT  R. A. MARTIN 《Plant pathology》1990,39(4):606-611

Barley and winter wheat were sampled over 3 years to characterize soil-borne organisms involved with cereal crown and root disease complexes. Winter wheat crowns were infected more often by Fusarium avenaceum and F. sambucinum than barley crowns. Bipolaris sorokiniana and F. graminearum were more common in crown tissue of barley underseeded with clover than in winter wheat crowns. In roots, the incidence of F. avenaceum was highest in winter wheat. In soil, populations of Rhizoctonia solani and F. sambucinum were higher in winter wheat than barley underseeded with ryegrass. Stunt nematodes (Tylenchorhynchus spp.) were greatest in winter wheat and barley underseeded with ryegrass. The incidence of F. avenaceum in roots of winter wheat correlated positively with the severity of crown and root rot symptoms. The severity of barley crown and root rot correlated positively with the incidence of R. solani in crowns, F. avenaceum in crowns and roots, B. sorokiniana in roots, and numbers of stunt nematodes in the soil. The incidence of soil-borne organisms was also recorded in annual ryegrass. soybean, potato, pea, and clover which were grown in rotation with barley and winter wheat. The incidence of R. solani and F. avenaceum was highest in clover crown tissue, and F. sambucinum was prevalent in soybean hypocotyls. Soil population levels of R. solani, F. avenaceum , and stunt nematodes were greatest in ryegrass and pea soil just prior to ploughing down or harvesting these crops, respectively.  相似文献   

An acute reversible experimental model of pneumonia in pigs: time‐related histological and clinical signs changes     

N. VILLARINO  D. GARCIA‐TAPIA  S. LESMAN  M. LUCAS  J. ROBINSON  S. A. BROWN  T. MARTIN‐JIMENEZ 《Journal of veterinary pharmacology and therapeutics》2013,36(3):241-247

The objective of this study was to evaluate the long‐term survival rates, clinical response, and lung gross and microscopic changes in pigs treated intratracheally with lipopolysaccharide of Escherichia coli 0111:B4 (LPS‐Ec). Healthy pigs were randomly allocated to three groups: (i) no‐LPS‐Ec (n = 1), (ii) LPS‐Ec‐T1 (1 mg/mL, 10 mL/pig) (n = 7), and (iii) LPS‐Ec‐T2 (0.5 mg/mL, 10 mL/pig) (n = 6). Two pigs from each dose group were euthanized at 24 (n = 3 for T1), 48 and 144 h post‐LPS‐Ec challenge. LPS‐Ec‐treated animals showed macroscopic lesions in middle lobes of the lung. A reversible recruitment of macrophages and neutrophils was observed at 24, 48, and 144 h post‐LPS‐Ec challenge. The highest cellular infiltration level was observed at 24 h after challenge. The highest clinical scores were evident in both experimental dose levels within 3 and 5 h after LPS‐Ec administration. Administration of LPS‐Ec, under the conditions evaluated, can be used to induce a reproducible model of acute pulmonary inflammation in pigs.  相似文献   

D03Catalytic, immunochemical and molecular characterization of xenobiotic-metabolising enzyme modulation by phenobarbital in the bovine liver     

M. CANTIELLO  M. CARLETTI  M. DACASTO  F. CAPOLONGO  G. GARDINI  P. CASCIO  P. G. P. MARTIN  T. PINEAU  & C. NEBBIA 《Journal of veterinary pharmacology and therapeutics》2006,29(S1):115-116

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The development of high synthetic pyrethroid resistance in Bovicola (Damalinia) ovis and the implications for resistance management     

PJ MARTIN 《Australian veterinary journal》1993,70(6):209-211

SUMMARY A field strain of the sheep body louse, Bovicola (Damallnia) ovis, was tested In vitro against a range of synthetic pyrethrolds (SP) and demonstrated a degree of resistance 80 to 900 times that of a susceptible strain. The dose response of this strain was compared with that of other strains showing low and Intermediate resistance. These data, and those from other reported cases suggest that SP resistance In sheep lice develops sequentially through a low level stage with resistance factors of 20 or less. Further selection results in the development of strains with resistance factors of up to several hundred. The implication is that preventing or managing resistance requires proper lice control management Including choosing a chemical capable of eradicating lice populations.  相似文献   

Direct tissue radioautography technique applied to teeth     

MARTIN ND  SLATER ES 《Science (New York, N.Y.)》1951,113(2947):721-722

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Concurrent Aelurostrongylus abstrusus infection and salmonellosis in a kitten     

VR BARRS  GR SWINNEY  P MARTIN  RG NICOLL 《Australian veterinary journal》1999,77(4):229-232

A 14-week-old kitten had a history of vomiting, diarrhoea and pyrexia, all of which resolved without treatment. Three weeks later the kitten developed a violent non-productive dry cough. Thoracic radiographs revealed pneumothorax and nodular alveolar disease. Aelurostrongylus abstrusus larvae and intracellular Gram-negative bacilli were seen in bronchial wash fluid and pleural exudate, and Salmonella Typhimurium was cultured from both fluids but not from faeces. Therapy included unilateral closed-tube thoracostomy, enrofloxacin and fenbendazole. Historical signs were compatible with gastrointestinal salmonellosis and secondary broncho-pneumonia. Seeding of the lungs with salmonellae may have occurred as a result of migration of A abstrusus from a gastro-intestinal tract residually infected or colonised by S Typhimurium. Alternatively, the development of lungworm infection in the cat may have activated quiescent S Typhimurium pulmonary granulomata from bacteraemia secondary to gastro-intestinal salmonellosis. Two years after diagnosis the cat was reportedly in good health.  相似文献   

Thrombosis—III: Surgical Treatment     

P. MARTIN 《The Journal of small animal practice》1966,7(11):721-722

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