共查询到20条相似文献，搜索用时 31 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
《Tropical animal health and production》1998,30(3):148-148
Tropical Animal Health and Production - 相似文献
10.
11.
12.
Cárceles CM Font A Escudero E Espuny A Marín P Fernández-Varón E 《Journal of veterinary pharmacology and therapeutics》2005,28(5):475-479
The pharmacokinetics (PK) of azithromycin after i.v. and i.m. injection at a single dosage of 20 mg/kg bodyweight was studied in sheep. Blood samples were collected from the jugular vein until 120 h after dosing for both routes. Plasma concentrations of azithromycin were determined by bioassay. The plasma concentration-time data of azithromycin best fitted a three-compartment model after i.v. administration and a two-compartment model with first-order absorption after i.m. administration. The elimination half-life (t(1/2lambdaz)) was 47.70 +/- 7.49 h after i.v. administration and 61.29 +/- 13.86 h after i.m. administration. Clearance value after i.v. dosing was 0.52 +/- 0.08 L/kg.h. After i.m. administration a peak azithromycin concentration (C(max)) of 1.26 +/- 0.19 mg/L was achieved at 1.24 +/- 0.31 h (t(max)). Area under the curve (AUC) were 38.85 +/- 5.83 mg.h/L and 36.03 +/- 1.52 mg.h/L after i.v. and i.m. administration respectively. Bioavailability obtained after i.m. administration was 94.08 +/- 11.56%. The high tolerability of this i.m. preparation and the favourable PK behaviour such as the long half-life and high bioavailability make azithromycin likely to be effective in sheep. 相似文献
13.
F. G. Startup 《The Journal of small animal practice》1964,5(5):449-453
Abstract— The author reviews some of the problems that have been encountered in providing organized courses of instruction for Registered Animal Nursing Auxiliary trainees. Facilities provided at training centres are reviewed together with the provision of lecturers for the courses. The examination organization is discussed together with the creation of standards for the students to attain.
Résumé— –L'auteur passe en revue quelques-uns des problèmes rencontrés dans 1'organisation des cours destinés à former des Auxiliaires Vétérinaires Diplômés: facilités données aux centres d'enseigne-ment, dispositions à prendre pour s'assurer la collaboration de professeurs, organisation des examens et établissement du niveau que les étudiants devraient atteindre.
Zusammenfassung— Der Verfasser bespricht einige der Probleme, die dabei auftraten, denjenigen, die sich zu registrierten Tierpflegehelfern ausbilden lassen wollten, organisierte Schulungskurse zu bieten. Er beschreibt die in den Ausbildungszentren gegebenen Möglichkeiten, sowie die Bereit-stellung von Dozenten fur die Kurse. Es wird die Organisation von Examen und die Schaffung eines bestimmten Niveaus, das die Studenten erreichen sollen, besprochen. 相似文献
Résumé— –L'auteur passe en revue quelques-uns des problèmes rencontrés dans 1'organisation des cours destinés à former des Auxiliaires Vétérinaires Diplômés: facilités données aux centres d'enseigne-ment, dispositions à prendre pour s'assurer la collaboration de professeurs, organisation des examens et établissement du niveau que les étudiants devraient atteindre.
Zusammenfassung— Der Verfasser bespricht einige der Probleme, die dabei auftraten, denjenigen, die sich zu registrierten Tierpflegehelfern ausbilden lassen wollten, organisierte Schulungskurse zu bieten. Er beschreibt die in den Ausbildungszentren gegebenen Möglichkeiten, sowie die Bereit-stellung von Dozenten fur die Kurse. Es wird die Organisation von Examen und die Schaffung eines bestimmten Niveaus, das die Studenten erreichen sollen, besprochen. 相似文献
14.
15.
16.
17.
18.
19.
In summary, important events of ejaculation include emission of sperm and the accessory gland fluids into the urethra, simultaneous closure of the bladder neck, and forceful ejaculation of the combined semen through the urethra. Emission and bladder neck closure are primarily alpha-adrenergically mediated thoracolumbar sympathetic reflex events with supraspinal modulation. Ejaculation is a sacralspinal reflex mediated by the pudendal nerve. In stallions, the most common ejaculation disorders are emission and ejaculation failure, and urine contamination of semen. Rare disorders are azoospermia and premature ejaculation. In a large percentage of cases, an ejaculation appears to be a result of musculoskeletal disorders or to be psychogenic in nature rather than attributable to specific ejaculatory dysfunction. Traditional therapeutic approaches for accommodating deficits can extend the breeding life of many stallions. Pharmacologic aids may be useful. 相似文献