共查询到20条相似文献,搜索用时 15 毫秒
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A. M. P. Bouillant 《The Canadian veterinary journal. La revue veterinaire canadienne》1986,27(5):195-198,199-203
The family Retroviridae comprises some fifty viruses in three subfamilies: Oncoviridae, Lentiviridae and Spumaviridae. A better understanding of retroviral pathobiology has resulted from the rapid developments in knowledge of the molecular biology of normal and cancerous cells as well as retroviruses. Genomic relatedness was found between two human T cell leukemia viruses and bovine leukemia virus; similarly, some relatedness appears possible between human AIDS (acquired immunodeficiency syndrome) virus and lentiviruses of large animals. Because of their genomic relatedness, retroviruses from man and animals could theoretically form recombinants during in vitro manipulation. Therefore persons who work with retroviral materials should follow established laboratory practices to control infectious agents. 相似文献
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Normogramme hématologique et biochimique et variations quotidiennes des paramètres de base chez le chien normal 下载免费PDF全文
These experiments were designed in order to determine normal hematological and biochemical values of normal dogs living in a laboratory environment. The findings were conclusive. Serial studies of some of the basic parameters have been done in a second group of animals. After a short period of conditioning, daily changes in weight, temperature, hematocrit and hemoglobin are minimal if the methods of analysis are standardized and reproducible. 相似文献
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Soufiane Djilali Henri-Jean Boulouis Xavier Montagutelli 《Comparative immunology, microbiology and infectious diseases》1987,10(3-4):187-204
The authors reviewed the lymphocyte markers in domestic animals. The first part is devoted to lectins. The general and methodologic aspects of lectins as mitogens are studied. The main mitogen lectins are emphasized in regard to their field of utilisation and the technical aspect of their use. The non-mitogen lectins are presented for cell suspension or tissue section staining. 相似文献
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Effets circulatoires et respiratoires de la kétamine chez le cheval anesthésié à l''halothane. 下载免费PDF全文
D Serteyn D Blais N A Abou Madi P Coppens E Mottart C Philippart 《Canadian journal of veterinary research》1987,51(4):513-516
Ketamine (0.3 mg/kg) administered intravenously to 12 halothane anesthetized horses caused a significant respiratory depression during ten minutes when respiration was spontaneous. Significant hemodynamic effects were not observed except for cardiac index. Clinical application was also discussed. 相似文献
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Prédiction de l''ovulation chez le bovin par dosage rapide de la LH plasmatique et observation de l''ovulation par laparoscopie. 下载免费PDF全文
The last hours of intrafollicular maturation are important to preserve the potential of oocytes for fertilization and development. To collect mature oocytes it is consequently essential to predict accurately the time of ovulation. Therefore we have modified a regular and specific plasma LH radioimmunoassay to a convenient assay providing reliable results within four to five hours. Using this technique we have been able to detect the LH peak with a delay small enough to predict the moment of ovulation; then we have been able to observe and photograph ovulation. The antigen-antibody reaction takes place during a two hour incubation at 37 degrees C. The immune complex is precipitated by addition of a rabbit anti-gamma-globulin and incubation at 22 degrees C for 30 minutes. The variation between fast and regular assays is lower than 15%. From a study of 25 cycles in 12 animals we suggest intervals of approximately 27 hours between the beginning of the LH peak and ovulation and of about 17 hours between the end of the peak and ovulation. Intervals between the beginning of heat and ovulation appear irregular and cannot be used with certainty as a reference point to predict ovulation. Five ovulations were observed closely and in the five cases, the formation of an apex was noted Our results clearly show that with the technique mentioned above we can predict rapidly and precisely bovine ovulation. 相似文献