Does veterinary dermatology interest you?     

Schroeder SW 《The Canadian veterinary journal. La revue veterinaire canadienne》1993,34(8):456

  相似文献   

兽药使用环节存在的问题及对策     

陈奕春  陈银伟  占伟慧  应振火 《中国兽药杂志》2005,39(10):47-47

经过对兽药生产厂家和经营企业几年的整治,尤其是新<兽药管理条例>和<兽药标签和说明书管理办法>出台后,又经过GMP认证,兽药生产经营市场秩序和经营行为得到了一定的规范.但兽药使用环节中却存在诸多的问题,如:违法使用人用药品;违法使用禁用兽药;不执行休药期规定;未建立台帐等等.这些问题的存在,直接导致了动物产品的安全性问题.对此,笔者分析了兽药使用环节存在问题的原因,并对解决这些问题提出了个人观点.  相似文献   

正交试验法优化普抗合剂制备工艺     

张媛  杜洪建  盛柳青  包卫华 《中国兽药杂志》2007,41(12):36-37

以干浸膏得率和黄芩苷提取率为考核指标,采用正交试验法对普抗合剂水提取醇沉淀制备工艺进行考察.普抗合剂最佳制备工艺方案为加水量10倍,提取2次,每次1 h,55%的乙醇沉淀杂质 .该工艺科学合理,适合于大规模工业生产.  相似文献   

Fascial plane mapping for superficial tumor resection in dogs. Part I: Neck and trunk     

Mikayla M. Schroeder  Owen T. Skinner 《Veterinary surgery : VS》2022,51(1):68-78

  相似文献   

Pulmonary Disease Potentially Associated with Nicoletella semolina in 3 Young Horses     

E.L. McConachie  K.A. Hart  D.D. Whelchel  E.L. Schroeder  H.C. Schott  II  S. Sanchez 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2014,28(3):939-943

  相似文献   

Pathology and Neurotoxicity in Dogs after Repeat Dose Exposure to a Serotonin 5-HT1B Inhibitor     

Jane C.F. Chang  Paul Ciaccio  Patricia Schroeder  Lindsay Wright  Russell Westwood  Anna-Lena Berg 《Journal of toxicologic pathology》2014,27(1):31-42

AZD3783, a cationic amphiphilic drug and a potent inhibitor of the 5-hydroxytryptamine (5-HT_1B) receptor, was explored as a potential treatment for depression. To support clinical trials, repeat dose toxicity studies in rats and dogs were conducted. Here we report toxicity findings in dogs after dosing from 1 to 3 months. In the 1-month study, there were minimal neuronal vacuolation in the brain, a marked increase in liver enzymes accompanied by hepatocellular degeneration/necrosis and phospholipidosis (PLD), and PLD/cholecystitis in the gallbladder of animals dosed at 47 mg/kg/day. In the 3-month study, neurotoxicity resulted in euthanasia of one animal dosed at 30 mg/kg/day after 86 days. Extensive pathologic changes were seen in all animals in retina epithelium (inclusion bodies), brain (neuronal vacuolation, degeneration, or necrosis and nerve fiber degeneration), spinal ganglia (vacuolation, degeneration, or necrosis), as well as sciatic and optic nerves (degeneration). Pigment-laden macrophages were observed in the lung, kidney, liver, gallbladder, bone marrow, gastrointestinal tract, and lymphoid tissues. Also seen were vitrel and retinal hemorrhage in the eyes. A brain concentration and pathology study showed that the concentration of AZD3783 in the brain was approximately 4 times higher than in the plasma after 4 weeks of dosing, however, they were similar in all regions examined, and did not correlate with areas with pathologic findings. Our findings with AZD3783 in dogs have not been reported previously with other CNS compounds that effect through serotonergic pharmacology.  相似文献   

Influence of Temperament Score and Handling Facility on Stress,Reproductive Hormone Concentrations,and Fixed Time AI Pregnancy Rates in Beef Heifers     

R Kasimanickam  S Schroeder  M Assay  V Kasimanickam  DA Moore  JM Gay  WD Whittier 《Reproduction in domestic animals》2014,49(5):775-782

The objectives were (i) to evaluate the effect of temperament, determined by modified 2‐point chute exit and gait score, on artificial insemination (AI) pregnancy rates in beef heifers following fixed time AI and (ii) to determine the effect of temperament on cortisol, substance‐P, prolactin and progesterone at initiation of synchronization and at the time of AI. Angus beef heifers (n = 967) at eight locations were included in this study. At the initiation of synchronization (Day 0 = initiation of synchronization), all heifers received a body condition score (BCS), and temperament score (0 = calm; slow exit and walk or 1 = excitable; fast exit or jump or trot or run). Blood samples were collected from a sub‐population of heifers (n = 86) at both synchronization initiation and the time of AI to determine the differences in serum progesterone, cortisol, prolactin and substance‐P concentrations between temperament groups. Heifers were synchronized with 5‐day CO‐Synch+ controlled internal drug release (CIDR) protocol and were inseminated at 56 h after CIDR removal. Heifers were examined for pregnancy by ultrasound 70 days after AI to determine AI pregnancy. Controlling for synchronization treatment (p = 0.03), facility design (p = 0.05), and cattle handling facility design by temperament score interaction (p = 0.02), the AI pregnancy differed between heifers with excitable and calm temperament (51.9% vs 60.3%; p = 0.01). The alley‐way with acute bends and turns, and long straight alley‐way had lower AI pregnancy rate than did the semicircular alley‐way (53.5%, 56.3% and 67.0% respectively; p = 0.05). The serum hormone concentrations differed significantly between different types of cattle handling facility (p < 0.05). The cattle handling facility design by temperament group interactions significantly influenced progesterone (p = 0.01), cortisol (p = 0.01), prolactin (p = 0.02) and substance‐P (p = 0.04) both at the initiation of synchronization and at the time of AI. Inter‐ and intra‐rater agreement for temperament scoring were moderate and good (Kappa = 0.596 ± 0.07 and 0.797 ± 0.11) respectively. The predictive value for calm and pregnant to AI was 0.87, and excited and non‐pregnant to AI was 0.76. In conclusion, the modified 2‐point temperament scoring method can be used to identify heifers with excitable temperament. Heifers with excitable temperament had lower AI pregnancy. Further, cattle handling facility design influenced the temperament and AI pregnancy.  相似文献   

Stable isotope ratios as naturally occurring tracers in the aquaculture food web   总被引：3，自引：0，他引：3  

Gerald L. Schroeder 《Aquaculture (Amsterdam, Netherlands)》1983,30(1-4):203-210

The natural isotopic ratio of ¹³C/¹²C (reported as δ C) in plant matter varies predictably among plant types. The isotopic ratio of an animal body reflects the isotopic ratio of the feed metabolized. By selecting inputs to an aquaculture feeding and/or fertilization system such that the components have significantly different δ C values, the relative meta-bolization of each of these inputs by the fish can be measured.

In tank-grown Tilapia aurea (δ C = −17), supplied feed (δ C = −18) provided the carbon incorporated into the fish body even though between feedings the fish consumed large quantities of algae (δ C = −22). In penaeid (δ C = −12) grow-out ponds, δ C analyses indicated that selected components of the feed pellet (average δC = −17; components: corn and sorghum δ C −12, soybeans δ C −25) were metabolized, while the benthic natural foods and other bottom organic matter (δ C = −21) provided little or no input. The value of such information for pond management and nutrition studies is clear.  相似文献   

Bodyweight and feed intake of German shepherd bitches during pregnancy and lactation     

G. E. Schroeder  G. A. Smith 《The Journal of small animal practice》1995,36(1):7-11

Thirty German shepherd bitches were assessed for weekly changes in bodyweight, daily food intake and litter size during pregnancy and lactation. The weekly changes in food intake and bodyweight were divided into two and three phases, respectively. Linear regression equations were used to fit each phase. The bodyweight of the bitches at mating ranged between 17 and 36 kg. The same diet was used for all the bitches throughout the study. Despite the tendency that litter size, birthweight and bodyweight of the puppies at three and six weeks increased with age of the bitch, no significant differences could be found. Significant (P<0·05) bodyweight differences existed at mating between the age groups. High correlations existed between mating weight and weight at 60 days of pregnancy (r²= 0·94] and between mating weight and weaning weight (r²= 0·89) of the litter. It was possible to successfully establish performance criteria for the reproductive German shepherd bitch in a commercial breeding unit, which can be used as a baseline to improve diets and feeding programmes by means of dietary manipulations.  相似文献   

Kurzmitteilung Kalium-Nachlieferung,Kalium-Festlegung und Tonmineralbestand schleswig-holsteinischer Böden     

D. Schroeder  H. Dümmler 《植物养料与土壤学杂志》1966,113(3):213-215

  相似文献