Studies on "Corkscrew Penis" in the bull     

R R Ashdown  H Pearson 《The Veterinary record》1973,93(2):30-35

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Some observations on microbial populations and nitrogen in soils infested with the take-all fungus     

Vivienne Pearson  Margaret E. Brown  David Hornby 《Pest management science》1973,4(3):397-398

Some possible causes of “take-all decline”, the decrease in the severity of attack by Gaeumannomyces graminis on cereals after several years' consecutive culture, are discussed. The possible relationships between the NO₃^?–N:NH₄⁺–N ratio in the rhizosphere, populations of rhizosphere bacteria and the incidence of take-all are considered.  相似文献   

The indications for equine laparotomy--an analysis of 140 cases.     

H Pearson  P J Pinsent  H R Denny  A Waterman 《Equine veterinary journal》1975,7(3):131-136

The indications for laparotomy in 140 horses are analysed, with particular emphasis on the operative or autopsy findings in 82 cases of colic. In cases of exploratory laparotomy, the overall recovery rate was only 28 per cent but 48 of the 82 animals were considered to have inoperable lesions. The recovery rate and causes of death for each indication are briefly reviewed.  相似文献   

BOVINE MALIGNANT CATARRH     

D. W. Duncan  B.V.SC  I. G. Pearson  B.V.SC 《Australian veterinary journal》1956,32(7):156-161

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NEW RECORDS OF TREMATODES FROM THE CAT     

J. C. Pearson  Ph.D. 《Australian veterinary journal》1960,36(3):93-93

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Experimental infection of six-month-old sheep with Escherichia coli O157:H7     

Wales AD  Clifton-Hadley FA  Cookson AL  Dibb-Fuller MP  La Ragione RM  Sprigings KA  Pearson GR  Woodward MJ 《The Veterinary record》2001,148(20):630-631

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Estimation of the liveweight of working mules in Morocco from their body measurements     

Kay G  Pearson RA  Ouassat M 《The Veterinary record》2004,154(3):85-88

During March 2001, 117 working mules, randomly chosen from four markets in Morocco, were weighed and a series of body measurements recorded; their age and body condition score were also recorded. Linear regression techniques were used to derive a 'best fit' equation for predicting liveweight from the other variables. For the working mules weighing between 131 and 391 kg the best prediction equation using two variables was: liveweight (kg) = -33 + 2.8 x heart girth (cm)+1.36 x length (cm). Other prediction equations available for estimating the liveweight of equidae were tested on the data, but in all cases they significantly overestimated the weights of the Moroccan mules.  相似文献   

Controversies and clarifications regarding bovine lentivirus infections. Subcommittee for the Bovine Retrovirus Committee, US Animal Health Association     

Evermann JF  Howard TH  Dubovi EJ  Knowles DP  Miller LD  Pearson JE  Snider TG  Suarez DL 《Journal of the American Veterinary Medical Association》2000,217(9):1318-1324

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Investigating the in situ degradation of atrazine in groundwater     

Pearson R  Godley A  Cartmell E 《Pest management science》2006,62(4):299-306

This study focused on whether or not atrazine could be degraded by indigenous groundwater bacteria as part of an in situ remediation approach. Groundwater was taken from an unconfined middle upper chalk site where concentrations of atrazine and nitrate were typically in the ranges 0.02-0.2 microg litre-1 and 11.6-25.1 mg NO3-N litre-1 respectively. Sacrificial batch studies were performed using this groundwater spiked with atrazine at a concentration of 10 microg litre-1 in conjunction with a minimal mineral salts liquid (Glu-MMSL) medium which contained glucose as the sole carbon source. Treatments comprised either the Glu-MMSL groundwater cultured bacteria or Pseudomonas sp. strain ADP. Results from sacrificial batches indicated the occurrence of bacterial growth and denitrification as monitored by optical density (absorbance at 600 nm) and NO3-N content. Analysis of atrazine content by solid phase extraction coupled with high-performance liquid chromatography showed no degradation of atrazine over a period of 103 days in either treatment. These results indicated that no acclimatised bacterial community featuring positive degraders to the herbicide atrazine had become established within this chalk aquifer in response to the trace levels encountered.  相似文献   

Predation on invasive cane toads (Rhinella marina) by native Australian rodents     

Cabrera-Guzmán  Elisa  Crossland  Michael R.  Pearson  David  Webb  Jonathan K.  Shine  Richard 《Journal of pest science》2015,88(1):143-153

Journal of Pest Science - The success of an invasive species can be reduced by biotic resistance from the native fauna. For example, an invader that is eaten by native predators is less likely to...  相似文献