NECROTIZING ENCEPHALITIS IN A YORKSHIRE TERRIER: CLINICAL, IMAGING, AND PATHOLOGIC FINDINGS     

Donatella  Lotti  DVM  PhD  Maria Tresa  Capucchio  DVM  Elena  Gaidolfi  DM  Monica  Merlo  DVM 《Veterinary radiology & ultrasound》1999,40(6):622-626

A 5-year-old, male Yorkshire Terrier had chronic and progressive neurologic signs compatible with lesions in the right brain stem and right forebrain. In magnetic resonance images of the brain there were multifocal lesions at different stages of evolution, consistent with an inflammatory disease. The lesions were located in the white matter of the cerebrum, in the diencephalon and mesencephalon. These lesions were hypointense in T1-weighted images and hyperintense in T2-weighted images with no mass effect and minimal enhancement with gadolinium. Necrotizing encephalitis was confirmed post mortem.  相似文献   

Founding clones, major contributing ancestors, and exotic progenitors of prominent North American potato cultivars     

Stephen L. Love 《American Journal of Potato Research》1999,76(5):263-272

Neither founding clones nor major genetic contributors to modern North American potato cultivars have been systematically identified. Available pedigrees, through 12 generations, were used to identify founding clones and major contributing ancestors (MCAs), to outline relationships among these clones, to determine the genetic contribution of MCAs and exotic germplasm to prominent cultivars, and to draw conclusions about the gene base of prominent North American cultivars. Based on 1996 certified seed acreage, 46 cultivars were identified as prominent, of which 44 had published pedigrees. Using this pedigree data, 12 MCAs consisting of four types were identified: land race types including Daber and Sutton’s Flourball; immediate descendants of land race types including Busola, Early Rose, Garnet Chili, Imperator, Richter’s Jubel, and Triumph; early USDA releases including Chippewa, Earlaine, and Katahdin; and one derivative of a GermanSolanum demissum ×S. tuberosum population designated Germ. No. 3895-13. These clones appeared in the pedigrees of from 61 to 100% of the 44 most prominent North American cultivars. Some MCAs appeared numerous times in the pedigrees of the cultivars with the maximum being Busola, which appeared in the pedigree of NorDonna 94 times. Across the 44 cultivars, the genetic contribution of MCAs averaged from 1.4% for Daber to 23.2% for Katahdin. A positive genetic contribution by exotic germplasm was present in 34 of the 44 cultivars. Krantz, Russet Nugget, Conestoga, and Yukon Gold had exotic germplasm contributions of 49.5, 34.1, 32.3, and 31.3%, respectively.  相似文献   

Epidemiological studies of equine herpesvirus 1 (EHV-1) in Thoroughbred foals: a review of studies conducted in the Hunter Valley of New South Wales between 1995 and 1997.     

J R Gilkerson  J M Whalley  H E Drummer  M J Studdert  D N Love 《Veterinary microbiology》1999,68(1-2):15-25

Sero-epidemiological studies conducted between 1995 and 1997 on two large Thoroughbred stud farms in the Hunter Valley of NSW showed clear evidence of EHV-1 infection in foals as young as 30 days of age. Similarly, serological evidence suggested that these foals were infected with EHV-1 from their dams or from other lactating mares in the group, with subsequent foal to foal spread of infection prior to weaning. These studies also provided evidence of EHV-1 infection of foals at and subsequent to weaning, with foal to foal spread of EHV-1 amongst the weanlings. These data indicated that the mare and foal population was a reservoir of EHV-1, from which new cases of infection propagated through the foal population both before and after weaning. The results of these studies support the long standing management practices of separating pregnant mares from other groups of horses to reduce the incidence of EHV-1 abortion. Also, these results have important implications for currently recommended vaccination regimens, as the efficacy of vaccination in already latently infected horses is unknown.  相似文献   

Stallion Spermatozoal Motility Parameters- an Examination of Intra and Inter-Stallion Variability Over a Breeding Season on a Commerical Texas Ranch     

A.L. Garcia  H.A. Brady  M.A. Ballou  D.D Varner  C.C. Love  G. Blodgett 《Journal of Equine Veterinary Science》2009

  相似文献   

Validation of the BioPRYN enzyme‐linked immunosorbent assay for detection of pregnancy‐specific protein‐B (PSPB) and diagnosis of pregnancy in American bison (Bison bison)          下载免费PDF全文

DM Love  MT Mefford  JC Ramer 《Reproduction in domestic animals》2017,52(5):791-797

This study assessed the accuracy of the commercial BioPRYN^® ELISA for the detection of pregnancy‐specific protein‐B (PSPB) using a single blood sample to determine pregnancy status in American bison (Bison bison). A total of 49 bison cows were used in the study, and sampled at two time‐points during the gestation period, fall and spring, correlating with early‐ to mid‐term gestation (average 62.9 days post‐mating) and mid‐ to late‐term gestation (average 229.2 days post‐mating), respectively. Sensitivity of the test during early‐ to mid‐term gestation sampling period (fall) was 87.1%, while specificity was 100%; sensitivity of the test during late‐term gestation sampling period (spring) was 96.3%, while specificity remained at 100%. In total, the test showed a total sensitivity of 91.4%, specificity of 100% and total accuracy of 93.8%, similar to domestic cattle. Use of the single‐sample BioPRYN^® ELISA in American Bison for pregnancy diagnosis is economical and practical, minimizing animal handling time, frequency and subsequent stress while providing accurate results for pregnancy diagnosis at 62 days post‐mating. This method should be considered over more traditional pregnancy diagnosis methods for use in managed bison herds.  相似文献   

The Potato Association of America 75th Annual Meeting Spokane,Washington, U.S.A.     

David Curwen  Pete Weingartner  Ronald Knight  Therese M. Work  Hugh J. Murphy  Steven B. Johnson  Richard Zink  Leigh Morrow  A. R. Mosley  Rod Davidson  Thoms Owings  Don Halseth  John Bamberg  John C. Wallace  Stephen Love  Don Halseth  Elmer E. Ewing  LaMont Anderson  Neil Gudmestad  Oscar Malamud  Jane Seabrook  Robert E. Thornton  Ronald Voss  A. J. Mosley 《American Journal of Potato Research》1991,68(12):861-902

  相似文献   

Comparison of Russet Burbank clones from various geographical regions of the United States and Canada     

Stephen L. Love  Asunta L. Thompson  Timothy P. Baker  Dennis L. Corsini 《American Journal of Potato Research》1992,69(5):299-307

Ten ‘Russet Burbank’ potato clones collected from various geographical regions of the United States and Canada were evaluated for plant and agronomic characteristics for two years at Aberdeen, Idaho. Clonal differences were detected for emergence time, stem number per hill, expression of Verticillium symptoms, some measures of yield, and percentage of tubers with hollow heart. Eight of the ten clones were quite similar. Differences were slight or found only in a few characteristics. One clone, collected from northern Idaho, was similar to the homogenous eight clones in all respects except yield, which was probably due to chronic PVX infection throughout the trial period. Another clone, collected from New Brunswick, was distinct from all other clones and was markedly inferior with respect to many of the characteristics measured when grown in Idaho.  相似文献   

The economic impact of investment in the Pacific Northwest potato variety development program     

A. A. Araji  S. Love 《American Journal of Potato Research》2002,79(6):411-420

Genetic improvement has been the principle contributor to productivity growth in almost all field crops. The Pacific Northwest (PNW) had the highest rate of potato yield growth combined with the least amount of varietal change in any specialized major field crop-producing region in North America. A coordinated potato variety development program, jointly funded by the USDA, the three land grant universities, and the potato industry in the PNW, was established in 1984. The program developed 17 new potato varieties during the 1989–2001 period, two of them are emerging as successful processing varieties. Ranger Russet, released in 1991, and Umatilla Russet, released in 1998, possess several desired quality and production traits. The most important of these traits is 20% higher processing yield than present varieties. Since their release, there has been significant increase in the percentage of potato area planted with these new varieties. The weighted average adoption rate of these new varieties in the PNW in 2000 was about 16% of the area planted with potato. This represents 32.5% of Washington’s potato acreage, 14.3% of Oregon’s potato acreage, and 9.0% of Idaho’s potato acreage. The benefit to investments in the PNW Potato Variety Development Program attributed only to the flow of benefits from the adoption of Ranger Russet and Umatilla Russet is estimated at over $104.3 million in year 2000 and projected to increase to $213.595 million in year 2014 and thereafter. Rate of return to investment is estimated at 35%.  相似文献   

Effect of planting depth and hilling practices on total, U.S. No. 1, and field greening tuber yields     

William H. Bohl  Stephen L. Love 《American Journal of Potato Research》2005,82(6):441-450

Previous research suggests that field greening of potato tubers can be minimized by planting seedpieces at an appropriate depth along with sufficient hilling to minimize exposure to sunlight. The appropriate planting depth and hilling practices to minimize field tuber greening have not been determined for newer cultivars. Two separate studies, each conducted for three years, are reported here. The first measured the effect of seedpiece planting depth on the yield, quality, and field greening tuber yield of ‘Russet Burbank’, ‘Frontier Russet’, and ‘Shepody’ potatoes. Seedpieces were handplanted in pre-formed hills at 8, 15, or 23 cm measured from the top of the seedpiece to the top of the hill. Planting at 23 cm resulted in significantly lower total yield compared with the 8- and 15-cm depths for Russet Burbank and Frontier Russet, but planting depth did not affect total yield of Shepody. U.S. No. 1 yield of Russet Burbank was not affected by planting depth, but U.S. No. 1 yield of Frontier Russet was significantly less at the 23-cm depth. For Shepody, the 8-cm depth caused a significant reduction in U.S. No. 1 yield compared with the 15-cm depth. Field greening tuber yield of Russet Burbank was significantly less at the 23-cm planting depth compared to 8 cm. For Frontier Russet and Shepody, planting at 15 or 23 cm resulted in significantly less field tuber greening compared to the 8-cm depth. The second experiment examined the effects of planting depth and hilling practices on yield, quality, and field tuber greening of Russet Burbank and Gem Russet potatoes. Six planting depth and hilling treatment combinations were used. Seedpieces were planted at a depth of either 8 or 15 cm, then hilled to either 15 or 23 cm at emergence or after plants had formed a rosette of leaves approximately 10 cm in diameter (post-emergence hilling). At-emergence hilling treatments had no effect on total or U.S. No. 1 yields of Russet Burbank compared with the 15-cm planting depth, non-hilled control. However, all post-emergence hilling treatments significantly reduced Russet Burbank total and U.S. No. 1 yields. Planting Russet Burbank at 8 cm and hilling to 23 cm at emergence, or planting at 8 or 15 cm and hilling to 23 cm post-emergence reduced field tuber greening of Russet Burbank. The effects of planting depth and hilling on Gem Russet total and U.S. No. 1 yields were less definitive than for Russet Burbank, and no treatments significantly reduced field tuber greening yield compared with the control.  相似文献   

Alturas: A multi-purpose, Russet potato cultivar with high yield and tuber specific gravity     

R. G. Novy  D. L. Corsini  S. L. Love  J. J. Pavek  A. R. Mosley  S. R. James  D. C. Hane  C. C. Shock  K. A. Rykbost  C. R. Brown  R. E. Thornton 《American Journal of Potato Research》2003,80(5):295-301

‘Alturas’, a late-maturing, high-yielding, russet potato cultivar with high tuber specific gravity, was released in 2002 by the USDA-ARS and the Agricultural Experiment Stations of Idaho, Oregon, and Washington. Originally selected for dehydration processing, its cold-sweetening resistance also makes it suitable for processing out of storage into french fries and other frozen potato products. Culinary quality is high, with larger tubers suitable for fresh market if heavily russeted skin is not essential. Alturas consistently produced greater total and U.S. No. 1 yields than ‘Russet Burbank’ and ‘Ranger Russet’ in southern Idaho trials. Across other western trial sites, total yields of Alturas have on average been 29% and 14% greater than Russet Burbank and Ranger Russet, respectively. Alturas is resistant to Verticillium wilt (Verticillium dahliae) and early blight (Alternaria solani). Compared with Russet Burbank and Ranger Russet, Alturas is less susceptible to corky ringspot and foliar and tuber infection by late blight (Phytophthora infestans). It also is less susceptible to tuber net necrosis and Fusarium dry rot than Russet Burbank, and is more resistant to common scab (Streptomyces scabies) than Ranger Russet. However, Alturas is more susceptible to infection by PVY and PVX than Ranger Russet. Total nitrogen application recommendations for Alturas are approximately 40% less than those for Russet Burbank. Alturas requires 15% to 20% more water during the growing season than does Russet Bur-bank.  相似文献