An integrated framework for software to provide yield data cleaning and estimation of an opportunity index for site-specific crop management     

Wei Sun  Brett Whelan  Alex B. McBratney  Budiman Minasny 《Precision Agriculture》2013,14(4):376-391

This paper proposes an integrated framework for software that provides yield data cleaning and yield opportunity index (Y _i ) calculation for site-specific crop management (SSCM). The artifacts in many yield data sets, which inevitably occur, can pose a significant effect on the validity of Yi. Automated and standardised yield correction procedures were designed to improve the data quality by removing: (1) unreasonable outliers; (2) distribution outliers (globally and locally); and (3) position errors. The calculation of Yi uses two aspects of crop yield assessment, the magnitude of yield variation and the spatial structure of the variation. The cleaning algorithms were applied to four yield data sets with known integrity issues to demonstrate effectiveness. Approximately 13–20 % of the original yield data were removed, and this resulted in an increased mean yield of 0.13 t/ha (average). The semivariograms of cleaned data were shown to possess smaller nugget values compared with the original data. The opportunity index calculation algorithm was demonstrated on a field with nine seasons of yield data. The results demonstrated that using a ranking of Yi provides a rational, agronomic assessment of the opportunity for SSCM based on the quantity and pattern of production variability displayed in yield data sets. This provides farm managers with a rapid way to assess whether the observed variability deserves further investigation and eventual investment in SSCM operations.  相似文献   

Factor VIII inhibitors complicating treatment of postoperative bleeding in a dog with hemophilia A     

Benjamin M. O'Kelley  DVM    Megan F. Whelan  DVM  DACVECC    Marjory B. Brooks  DVM  DACVIM 《Journal of Veterinary Emergency and Critical Care》2009,19(4):381-385

Objective – To describe the clinical course of a dog with hemophilia A and circulating factor VIII inhibitors complicating the treatment of postoperative hemorrhage.
Case Summary – A 7-year-old castrated male Japanese Chin with hemophilia A, weighing 6 kg, was presented for dental cleaning, polishing, and extractions. Despite presurgical administration of cryoprecipitate, continuous oral bleeding occurred. Circulating factor VIII inhibitors were detected, and the postoperative hemorrhage was subsequently managed with extensive and prolonged blood component transfusion. The dog was discharged after a full clinical recovery.
New or Unique Information Provided – This case report describes the clinical consequences and successful treatment of postoperative hemorrhage in a dog with hemophilia A and circulating factor VIII inhibitors. A relevant discussion of the management of human patients with circulating factor VIII inhibitors is included.  相似文献   

Double-outlet right ventricle in a 10-month-old Friesian filly   总被引：1，自引：1，他引：0  

LC Fennell  S Church  D Tyrell  G Forbes  JA Charles  C McCowan  CJ Savage 《Australian veterinary journal》2009,87(5):204-209

A 10-month-old Friesian filly had a presentation that was consistent with chronic left- and right-sided congestive heart failure. Clinical pathology findings included abnormal haematological and biochemical variables, abnormal blood gas values and increased serum concentration of cardiac troponin I. Echocardiography revealed cardiac chamber dilation and dextropositioning of the aorta. Radiography revealed a generally enlarged heart and pulmonary interstitial infiltration. These findings were supported at necropsy and the diagnosis of double-outlet right ventricle was confirmed. The pathological changes and physiological responses subsequent to double-outlet right ventricle have not previously been described in detail in horses. Clinical progression closely resembles that seen in humans, in whom antemortem diagnosis relies on echocardiography. In horses, complex cardiac disease presents a diagnostic challenge to the clinician. Appropriate therapy must be based on an accurate diagnosis.  相似文献   

Effects of methionine on muscle protein synthesis and degradation pathways in broilers     

Johanna O. Zeitz  Sarah Mohrmann  Stella C. Kding  Murat Devlikamov  Ines Niewalda  Rose Whelan  Ariane Helmbrecht  Klaus Eder 《Journal of animal physiology and animal nutrition》2019,103(1):191-203

This study investigated the hypothesis that supplementation of methionine (Met) to broiler diets increases muscle growth due to regulation of molecular pathways related to protein synthesis and degradation depending on the Met source. Day‐old male Cobb‐500 broilers (n = 240) were phase‐fed three different wheat–soya bean meal‐based basal diets during days 1–10, 11–21 and 22–35. Basal diets (Met‐ group, Met + Cys concentration 15% below NRC recommendations) were supplemented with 0.10% or 0.40% Met either as DL‐Met (DLM) or DL‐2‐hydroxy‐4‐(methylthio) butanoic acid (DL‐HMTBA) (equimolar comparison). Breast muscle weights were lower in the Met‐ group compared to all Met‐supplemented groups and were lower in broilers supplemented with 0.10% of DL‐HMTBA compared to the other groups fed Met‐supplemented diets. However, the expression of genes or relative phosphorylation and thus activation state of proteins involved in the somatotropic axis, the mammalian target of rapamycin (mTOR) pathway of protein synthesis, the ubiquitin–proteasome pathway (UPP) and autophagy–lysosomal pathway of protein degradation, the GCN2/eIF2a pathway involved in the inhibition of protein synthesis and in the myostatin–Smad2/3 pathway involved in myogenesis were not affected by Met source. Feeding diets with suboptimum Met + Cys concentrations, however, decreased expression of GHR and IGF1 in liver and muscle and increased that of MURF1 involved in the UPP in the broiler's muscle at day 10 and 21, while that of FOXO and atrogin‐1 and FOXO phosphorylation remained unaffected. Additionally, suboptimum dietary Met concentrations increased expression of the autophagy‐related genes ATG5 and BECN1 at day 35. Met supplementation neither affected gene expression nor phosphorylation of proteins involved in the GNC2/eIF2a and mTOR pathways. These data indicate that protein synthesis was not affected on the molecular level, while protein degradation was marginally affected by dietary Met dosage.  相似文献   

Identification of ectopic ovotestis in a dog with XX ovotesticular,SRY‐negative,disorder of sexual development          下载免费PDF全文

M Diel de Amorim  A Lerer  T Durzi  RA Foster  CJ Gartley 《Reproduction in domestic animals》2018,53(3):822-825

A 1‐year‐old, previously spayed phenotypic female Poodle/Soft‐coated Wheaten Terrier (Whoodle) cross was presented for a suspected ovarian remnant. Serum luteinizing hormone (LH) concentration was below the detection limit (<1 ng/ml Witness^® LH), and serum progesterone concentration was elevated in the chemiluminescence immunoassay (CLIA; 20 ng/ml), consistent with dioestrus and presence of ovarian tissue. Transabdominal ultrasound revealed a retroperitoneal soft tissue structure suspected to be a gonad. On exploratory laparotomy, a gonad was removed from the cranial retroperitoneum, cranial to the right kidney, after ligation of its primary blood supply. Histological examination proved the gonad to be an ovotestis. Subsequent cytogenetics revealed a 78 XX karyotype, thus confirming the diagnosis of ectopic ovotestis in a XX ovotesticular, SRY‐negative, disorder of sexual development in a dog.  相似文献   

Hypertrophic cardiomyopathy in a Clydesdale gelding          下载免费PDF全文

AM Cullimore  GD Lester  CJ Secombe  K Campbell 《Australian veterinary journal》2018,96(6):212-215

  相似文献   

Bronchoalveolar lavage fluid cytology and airway hyper‐reactivity in clinically normal horses          下载免费PDF全文

AM Cullimore  CJ Secombe  GD Lester  ID Robertson 《Australian veterinary journal》2018,96(8):291-296

  相似文献   

Songbird ecosystem function and conservation     

Whelan CJ  Marquis RJ 《Science (New York, N.Y.)》1995,268(5215):1263

  相似文献   

Retrospective evaluation of elevator-related injuries in dogs (2015–2020): 13 cases     

Justina Bartling DVM  Megan Whelan DVM  DACVECC  Virginia Sinnott-Stutzman DVM  DACVECC 《Journal of Veterinary Emergency and Critical Care》2023,33(1):70-73

  相似文献   

Retrospective survey of bronchoalveolar lavage fluid cytology in Western Australian horses presented for evaluation of the respiratory tract: effect of season on relative cell percentages          下载免费PDF全文

CJ Secombe  GD Lester  ID Robertson  AM Cullimore 《Australian veterinary journal》2015,93(5):152-156

  相似文献