Rapidly progressive diffuse retinal degeneration in a kitten     

D. F. KELLY  D. G. LEWIS 《The Journal of small animal practice》1985,26(6):317-322

Advanced diffuse bilateral retinal degeneration was identified in a 13-week old female domestic short-haired kitten. The animal was in good physical health but had steady deterioration in vision over a period of a month. Clinical signs were mydriasis, tapetal hyper-reflectivity, marked loss of retinal vasculature and almost total blindness. Histological examination of the retina showed degeneration of the photoreceptor and outer nuclear layers. The clinical and pathological features are similar to those described in inherited retinal degeneration in Persian kittens.  相似文献   

Effect of Gliocladium and Trichoderma on damping-off and blight of snapbean caused by Sclerotium rolfsii in the greenhouse     

G. C. PAPAVIZAS  J. A. LEWIS 《Plant pathology》1989,38(2):277-286

Aqueous suspensions of conidia of 285 wild-type strains and mutants of Gliocladium virens, Trichoderma hamatum, T. harzianum and T. viride were tested against Sclerotium rolfsii in the greenhouse. Ten strains of G. virens and four strains of T. harzianum suppressed damping-off of snapbean by 30-50% and blight by 36-74%. All strains of T. hamatum and T. viride tested as conidia were ineffective. In general, strains of G. virens were more effective in suppressing disease in the greenhouse than strains of T. harzianum. Several strains of G. virens and T. harzianum used alone were equal to or more effective than double and triple mixtures of such strains in disease suppression. Of four formulations of G. virens tested, germlings, alginate-bran-fermenter biomass pellets, and Pyrax-fermenter biomass mixtures reduced disease considerably and all three formulations were more effective than conidia in aqueous suspension. Strain G1-3 of G. virens added to soil as Pyrax-fermenter biomass mixtures in amounts to provide colony-forming units ranging from 1 -5 × 10³ to 1 -2 × 10⁴ per g soil provided statistically significant protection of the host at all concentrations. The extent of biological control with strains G1-3 and G1-21 of G. virens also depended on the strain of the pathogen used. Both strains effectively suppressed disease caused by strain Sr-1 (small sclerotia) of S. rolfsii. They were partially effective against strain Sr-116 (medium size sclerotia) and ineffective against strain Sr-3 (large sclerotia). Although strains G1-3 and G1-21 colonized the sclerotia of all three strains of S. rolfsii in soil effectively, they only reduced germinability of sclerotia of strain Sr-1.  相似文献   

Gap colonization by weeds in a wheat crop grown under different cultivation regimes     

FELDMAN  ALZUGARAY  TORRES  LEWIS 《Weed Research》1998,38(1):35-45

The effects of tillage systems (mouldboard plough, chisel, disk and non-tillage, over 3 years) and gap openings during August and October of 0, 0.30 m × 0.30 m and 0.45 m × 0.45 m on the weed community were investigated in a wheat (Triticumaestivum L.) crop. Weed flora composition and species abundance were recorded in August, September and November and the data analysed with MULVA programs and non-parametric tests. The tillage system was more important than the timing or gap size on the weed floristic composition, and the changes in weed communities were evident within a 3-year period in spite of herbicide use. Less disturbing tillage systems (non-tillage and chisel plough) allowed the build-up of a more diverse community, whereas the most disturbing one (mouldboard plough) prevented high diversity in the weed community.  相似文献   

Isolation of Mycoplasma synoviae from infectious synovitis of chickens   总被引：1，自引：0，他引：1  

CJ MORROW †  IG BELL†  SB WALKER§  PF MARKHAM†  BH THORP¶  KG WHITHEAR† 《Australian veterinary journal》1990,67(4):121-124

This report describes the first isolations of Mycoplasma synoviae from the synovial sheaths and joints of commercial chickens affected with synovitis in Australia. Over 4 years 3 separate outbreaks were investigated in which up to 20% of birds exhibited clinical signs of poor growth and "hot foot" syndrome (swollen inflamed footpads). Once an outbreak occurred, chronic infection of the farm usually ensued. Grossly the hocks and footpads were swollen by a purulent exudate and associated inflammatory changes with histological features of a severe acute synovitis. Seroconversion of the flocks occurred at the time of the development of lesions. M. synoviae specific antibodies were demonstrated by ELISA in the joint fluid of affected birds. It is concluded that the cases described are similar to avian infectious synovitis syndrome caused by M. synoviae previously described overseas.  相似文献   

A hereditary disorder of cornification and multiple congenital defects in five Rottweiler dogs     

LEWIS  MESSINGER  GINN  & FORD 《Veterinary dermatology》1998,9(1):61-72

The clinical, biochemical, histological, or ultrastructural abnormalities of five related female Rottweiler dogs with a hereditary disorder of cornification are reported. Three of the five dogs also had multiple noncutaneous congenital defects. Cutaneous abnormalities included generalized, hyperkeratotic, variably pigmented plaques, which in one dog were distributed along Blaschko's lines. Moderate to severe parakeratosis involving the follicular infundibula and ostia and focal orthokeratosis with variable vacuolation of spinous cells was observed on histopathologic examination of all skin specimens. Supplementation with oral zinc in two dogs and vitamin A alcohol and calcitriol in one dog did not result in clinical or histological improvement of the hyperkeratotic lesions. This disorder of cornification in dogs is similar to human disorders of cornification that follow the lines of Blaschko. Blaschko's lines follow a V-shape over the spine, an S-shape on the abdomen, and an axial distribution on the limbs. No related male dogs were affected, suggesting an X-linked dominant mode of inheritance. Many features of this hereditary DOC correspond to the human condition CHILD syndrome.  相似文献   

Determining Citizen Satisfaction with Local Public Education in Indonesia: The Significance of Actual Service Quality and Governance Conditions   总被引：1，自引：0，他引：1  

BLANE D. LEWIS  DAAN PATTINASARANY 《Growth and change》2009,40(1):85-115

Indonesians appear content with local public education, despite independent concerns about quality in the international context. Over 85 percent of respondents from the recent Governance and Decentralization Survey claim to be at least somewhat satisfied with primary school education. This study argues that the generally high levels of reported satisfaction are probably exaggerated because of courtesy bias, low expectations, and optimistic predispositions. Survey responses are best thought of as indicative of relative, and not absolute, levels of satisfaction. The empirical examination shows that objective measures of service quality and governance conditions are both significant determinants of the probability that households are satisfied with local public education. The significance of governance holds regardless of whether pertinent variables are assumed to be exogenous or whether they are specified as endogenously determined, although the endogenous specification performs much better, in general. The evidence suggests a cautious approach toward the use and interpretation of score card initiatives, which attempt to employ citizen satisfaction as a close proxy for actual quality of services, in nonrandom samples, and without controlling for other factors. In addition, the results provide a novel rationale for improving the local governance environment.  相似文献   

Is Mycoplasma bovis a missing component of the bovine respiratory disease complex in Australia?     

PF Horwood  ML Schibrowski  EV Fowler  JS Gibson  TS Barnes  TJ Mahony 《Australian veterinary journal》2014,92(6):185-191

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Effective control of a suspected cyromazine‐resistant strain of Lucilia cuprina using commercial spray‐on formulations of cyromazine or dicyclanil     

KE Baker  PF Rolfe  AJ George  KJ Vanhoff  PF Kluver  JN Bailey 《Australian veterinary journal》2014,92(10):376-380

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Metastatic mast cell tumour in a dog presenting with spinal pain     

MA Cooper  PF Bennett  PH Laverty 《Australian veterinary journal》2009,87(4):157-159

The clinical, advanced imaging and surgical features of a case of canine extradural mast cell tumour are presented. This rare location has only been reported once before as a primary lesion, although the present case may be a metastatic lesion. Given the frequent occurrence and treatment of cutaneous mast cell tumours in dogs, the finding of spinal metastasis is an important reminder to consider metastatic neoplasia in cases of previously treated cancers presenting with spinal pain.  相似文献   

A Preliminary Communication on the Oral Treatment of Two Cases of Hyperglycaemia in the Dog Presumed to be Due to Diabetes Mellitus     

D. G. LEWIS 《The Journal of small animal practice》1960,1(1-4):201-203

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