Prevalence of ovine and bovine respiratory syncytial virus infections in cattle determined with a synthetic peptide-based immunoassay.     

S T Grubbs  S A Kania  L N Potgieter 《Journal of veterinary diagnostic investigation》2001,13(2):128-132

Subgroup-specific peptide-based enzyme-linked immunosorbent assays from the G-protein of the ovine and bovine respiratory syncytial virus (RSV), respectively, were used to determine the prevalence of the ovine and bovine subgroup strains of RSV infections in cattle. A total of 1,102 bovine serum samples were obtained from 6 diagnostic laboratories located in the northwestern and the southeastern USA and were tested for antibody to either the bovine or ovine subgroups of RSV. Antibody to viruses from each subgroup was present in samples from each region and all states tested. The Southeast had a higher prevalence of the bovine subgroup strains (69.5%). Then did the Northwest (40.9%). The prevalence of the ovine strain was similar for the two regions (16.7% in the southeast, 14.9% in the northwest). The overall prevalence was 56.6% for the bovine strain and 15.9% for the ovine strain. These results suggest members of the ovine subgroup of RSV circulate in the cattle population but with less frequency than those viruses of the bovine subgroup.  相似文献   

Surveys of apple-grass aphid on apple in southern England, 1965–76     

W. I. ST. G. LIGHT 《Plant pathology》1980,29(3):136-139

  相似文献   

Field evaluation of moxidectin/praziquantel oral gel in horses     

Grubbs ST  Amodie D  Rulli D  Wulster-Radcliffe M  Reinemeyer C  Yazwinski T  Tucker C  Hutchens D  Smith L  Patterson D 《Veterinary therapeutics : research in applied veterinary medicine》2003,4(3):249-256

The safety and efficacy of 2% moxidectin/12.5% praziquantel oral gel administered at a rate of 0.4 mg moxidectin and 2.5 mg praziquantel/kg was studied in client-owned horses under field use conditions. Four hundred horses (300 treated with moxidectin/praziquantel oral gel and 100 treated with vehicle) were enrolled, feces were collected, and eggs were counted. Investigators as well as horse owners were masked to treatment assignment. No adverse reactions to treatment were observed in any horses. Moxidectin/praziquantel gel reduced Anoplocephala spp by more than 99% and provided a significant (P <.05) reduction (> 98%) in the strongyle egg count of treated horses.  相似文献   

Determination of Feeder Cell‐Based Cellular Niches Supporting the Colonization and Maintenance of Spermatogonial Stem Cells from Prepubertal Domestic Cat Testes     

JI Yun  HJ Park  MH Park  MS Kim  JH Choi  E Lee  SP Gong  JM Lim  ST Lee 《Reproduction in domestic animals》2014,49(5):705-710

Recently, isolation and in vitro culture of putative spermatogonial stem cells (SSCs) in the domestic cat have been conducted. However, the cellular niche conditions that facilitate the establishment and long‐term maintenance of feline SSCs (FSSCs) have not been described. Therefore, we investigated the type of feeder cells used to stimulate colony formation and growth of FSSCs among the various factors in the FSSC niche. Spermatogonial stem cells isolated from feline testes were cultured on mitotically inactivated testicular stromal cells (TSCs) derived from cats, dogs and mice, and mouse embryonic fibroblasts (MEFs). The formation and growth of colonies derived from SSCs cultured on each type of feeder cell were identified at passage 0, and the morphology, alkaline phosphatase (AP) activity and expression of SSC‐specific genes in surviving colonies were investigated at passage 4. Among these diverse feeder cells, TSCs from cat showed the greatest colony formation, growth and maintenance of FSSCs, and SSC colonies cultured by passage 4 showed a typical dome‐shaped morphology, AP activity and expression of SSC‐specific genes (NANOG, OCT4, SOX2 and CD9). Accordingly, these results demonstrate that feline TSCs could be used as feeder cells to support the establishment and maintenance of SSCs from domestic cats.  相似文献   

2nd International Symposium on Bluetongue, African Horse Sickness and Related Obiviruses, Paris, 17 – 21 June 1991     

TD ST  GEORGE  GI ALEXANDER  GP GARD 《Australian veterinary journal》1991,68(12):381-382

  相似文献   

GREY WOODED (PODZOLIC) SOILS OF SASKATCHEWAN, CANADA     

H. C. MOSS  R. J. ST. ARNAUD 《European Journal of Soil Science》1955,6(2):295-311

  相似文献   

Thin Films of n-Si/Poly-(CH3)3Si-Cyclooctatetraene: Conducting-Polymer Solar Cells and Layered Structures     

Sailor MJ  Ginsburg EJ  Gorman CB  Kumar A  Grubbs RH  Lewis NS 《Science (New York, N.Y.)》1990,249(4973):1146-1149

The optical and electronic properties of thin films of the solution-processible polymer poly-(CH(3))(3)Si-cyclooctatetraene are presented. This conjugated polymer is based on a polyacetylene backbone with (CH(3))(3)Si side groups. Thin transparent films have been cast onto n-doped silicon (n-Si) substrates and doped with iodine to form surfacebarrier solar cells. The devices produce photovoltages that are at the theoretical limit and that are much greater than can be obtained from n-Si contacts with conventional metals. Two methods for forming layered polymeric materials, one involving the spincoating of preformed polymers and the other comprising the sequential polymerization of different monomers, are also described. An organic polymer analog of a metal/insulator/metal capacitor has been constructed with the latter method.  相似文献   

A preliminary report of a comparison of epizootic haemorrhagic disease viruses from Australia with others from North America, Japan and Nigeria     

C H CAMPBELL  T D ST GEORGE 《Australian veterinary journal》1986,63(8):233-233

  相似文献   

Infection of cattle in Queensland with bluetongue viruses: I. prevalence of antibodies II. distribution of antibodies     

TD ST  GEORGE LF MELVILLE 《Australian veterinary journal》1995,72(9):358-359

  相似文献   

THE ISOLATION OF A ROSS RIVER VIRUS FROM A HORSE   总被引：1，自引：0，他引：1  

R. R. R. PASCOE  T.D. ST  GEORGE D. H. CYBINSKI 《Australian veterinary journal》1978,54(12):600-600

  相似文献