High level resistance to cypermethrin in the sheep body louse   总被引：2，自引：0，他引：2  

GW LEVOT 《Australian veterinary journal》1992,69(5):120-120

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Strategic use of crutching and dicyclanil to protect unmulesed sheep against breech strike   总被引：1，自引：1，他引：0  

PJ James  AP Cramp  J Winkleman  R Mcphie  GW Brown 《Australian veterinary journal》2009,87(4):138-141

Objective   To test strategies for the application of dicyclanil and mid-season crutching to maximise protection of unmulesed sheep against breech strike.
Procedure   Three hundred and eighty unmulesed Merino weaners were randomly allocated to four groups either left untreated or treated by different strategies with 50 g/L dicyclanil. Treatments included breech treatment alone and breech plus body treatment, with two application times, immediately after shearing and 6 weeks after crutching or shearing. To assess protection, larval implants with newly hatched Lucilia cuprina larvae were applied to 10 different sheep from each group at 3, 4, 5 and 6 months after crutching and shearing and assessed for the development of strike at 48 hours. The concentration of dicyclanil was measured in wool samples clipped from the breeches of the test sheep.
Results   All dicyclanil treatments gave significant reduction in strike in comparison to controls up until 4 months after crutching but protection in the sheep treated immediately after shearing had waned at 5 months. Treating at 6 weeks after crutching provided significant reduction ( P < 0.05) in strike for 6 months. Results for strike incidence immediately after shearing and concentration of dicyclanil in the breech wool also suggested improvements in protection by delaying treatment for 6 weeks.
Conclusion   In most environments it should be possible to protect unmulesed sheep against breech strike with a carefully planned integrated control program incorporating strategically timed crutching, shearing and dicyclanil application. Delaying treatment with dicyclanil to at least 6 weeks after shearing or crutching increased the protection provided in comparison to treatment immediately after shearing.  相似文献   

Survival advantage of cyromazine‐resistant sheep blowfly larvae on dicyclanil‐ and cyromazine‐treated Merinos     

GW Levot  BJ Langfield  DJ Aiken 《Australian veterinary journal》2014,92(11):421-426

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Comparison of the Q-fever complement fixation test and two commercial enzyme-linked immunosorbent assays for the detection of serum antibodies against Coxiella burnetii (Q-fever) in ruminants: Recommendations for use of serological tests on imported animals in New Zealand     

R Kittelberger  J Mars  G Wibberley  R Sting  K Henning  GW Horner 《New Zealand veterinary journal》2013,61(5):262-268

Abstract

AIM: To make valid recommendations on the use of serological test methods for the detection of serum antibodies in ruminants against Coxiella burnetii (Q-fever), by comparing the performance of the complement fixation test (CFT) and two ELISA, and by identifying reasons for discrepancies between the test methods.

METHODS: A total of 73 serum samples from infected cattle, 69 from infected goats, and 100 samples from non-infected cattle and 57 samples from non-infected sheep, as well as 95 samples from infected cattle herds (mix of seropositive and seronegative samples), were tested using the CFT, the IDEXX ELISA (I-ELISA) and the Pourquier ELISA (P-ELISA). A mixed panel of 12 serum samples from sheep from inter-laboratory proficiency testing (proficiency panel) was also tested using the CFT and both ELISA, and further investigated using IgG- and IgM-specific ELISA.

RESULTS: Generally, the two commercial ELISA were more sensitive than the CFT for the detection of infected ruminants. Good agreement between ELISA for positive and negative results was found for samples from the infected herd, while results for the positive panels varied between the two ELISA. For the total of the positive serum panels, the I-ELISA detected 95% of samples as positive or suspicious, while the P-ELISA detected only 81%. In the P-ELISA, more samples were considered suspicious (18%) than in the I-ELISA (14%). All sera from noninfected sheep and cattle tested negative in the serological test methods employed, except for one positive sample from a sheep in the P-ELISA. Further investigation revealed that a CFT-positive but ELISA-negative result was due to high IgM and low IgG reactivity.

CONCLUSIONS: The two commercial ELISA were more sensitive than the CFT in all panels from infected ruminants. However, they could only detect IgG. The I-ELISA should be the serological test method of choice for cattle, sheep and goats for import testing of animals into New Zealand because it was more sensitive than the P-ELISA and was equally specific to the PELISA and the CFT. For other animal species, such as deer and camelids, the CFT should still be used since none of the ELISA has been evaluated for these species. This study has shown that the two commercial ELISA will detect the majority of infected ruminants but may miss animals that have not developed an IgG response.  相似文献   

Hepatic Lobectomy in the Dog A Comparison of Stapling and Ligation Techniques   总被引：1，自引：0，他引：1  

DANIEL D. LEWIS DVM    CHRISTOPHER R. BELLENGER BVSC  PhD  FACVSC  MRCVS    DIANE T. LEWIS DVM  MELANIE R. LATTER BVSC 《Veterinary surgery : VS》1990,19(3):221-225

The left lateral hepatic lobe was removed in six dogs with a stapling instrument and in six dogs by blunt dissection and ligation. Both techniques were safe and effective. Lobectomy by dissection and ligation was slower and less complete than by stapling. Major intraoperative or postoperative hemorrhage did not occur with either method. Serum chemistry values were elevated after surgery in all dogs but did not differ significantly between treatment groups. Microscopic hemorrhage, necrosis, and inflammation of the lobectomy site were more pronounced after dissection and ligation than stapling.  相似文献   

Percutaneous Nephrolithotomy in the Dog An Experimental Study     

GAYLE S. DONNER DVM    GARY W. ELLISON DVM  MS  DiplomateACVs    NORMAN ACKERMAN DVM  DiplomateACVR    DAVID F. SENIOR BVSC  DipiomateACVIM  GREGORY CAMPBELL MS  DVM 《Veterinary surgery : VS》1987,16(6):411-417

Percutaneous nephrostomies (PN) were created with teflon fascial dilators under fluoroscopic guidance, to implant stones bilaterally into the renal pelves of five dogs weighing 7 to 35 kg. Between one and seven stones of 0.25 to 1.00 cm diameter were implanted into each renal pelvis. Two to 4 weeks later, PN tracts were recreated, and the implanted renal stones were successfully removed under fluoroscopic and endoscopic visualization. Results of gross and histopathologic evaluation of the kidneys 2, 7, 14, 30, and 90 days after stone removal showed minimal, localized renal parenchymal trauma. Complications, although infrequent, included proximal ureteral tears and hemorrhage. Difficulty was encountered in maneuvering equipment around large or numerous stones. Canine percutaneous nephrolithotomy was successful despite great variation in kidney size, as well as variations in the number, size, and shape of stones in the upper urinary tract.  相似文献   

Anaerobic Bacteria Isolated from Osteomyelitis in Dogs and Cats     

PETER MUIR BVSC  PhD  MACVSC  MRCVS  KENNETH A. JOHNSON MVSC  PhD  FACVSC  Dipiomate ACVS 《Veterinary surgery : VS》1992,21(6):463-466

Anaerobic bacteria were isolated from 18 of 28 animals (64%) with osteomyelitis. The bones most commonly infected with anaerobic bacteria were radius and ulna, mandible, and tympanic bulla. Fights or abscesses commonly preceded the osteomyelitis. Seven anaerobic genera were isolated. Mixed infections of anaerobic and aerobic organisms occurred in 16 animals. Staphylococci were isolated in only one such mixed infection, but they were isolated commonly when there were aerobic bacteria only. Staphylococcal infections were often single.  相似文献   

Correspondence     

Simon C.  Roe BVSC  MVSC  Ann L.  Johnson dvm  MS  DiplomateACVS William R. Daly  DVM DiplomateACVS 《Veterinary surgery : VS》1985,14(3):255-256

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En Bloc Resection of Primary Rib Tumors in 40 Dogs     

DAVID T. MATTHIESEN DVM  Diplomate ACVS    GEOFFREY N. CLARK DVM    ROBERT J. ORSHER DVM  Diplomate ACVS    ANTHONY O. PARDO MS  DVM  Dipiomate ACVS    JOSEPH GLENNON DVM  AMIYA K. PATNAIK BVSC  MVSC 《Veterinary surgery : VS》1992,21(3):201-204

Single or multiple rib resection was performed in 40 dogs for the treatment of primary osteosarcoma or chondrosarcoma. The resulting thoracic wall defect was closed with polypropylene (12 dogs), primary muscle flap (16 dogs), diaphragmatic advancement (10 dogs), or a combination (2 dogs). Few immediate (less than 2 weeks) postoperative complications were observed. Twenty dogs with osteosarcoma had a median survival time of 3.3 months (range, 0.5 to 23 months), with a 20% 6-month survival time. Metastases occurred in all the dogs. Fourteen dogs with chondrosarcoma followed up longer than 2 weeks had a median survival time of 10.7 months (range, 0.5 to 36 months) with a 64% 6-month survival time. Eight dogs developed metastases, five died from concurrent disease, and one dog is alive. Dogs with chondrosarcoma survived significantly longer than dogs with osteosarcoma. Survival time was not related to tumor size or number of ribs resected.  相似文献   

Excision of Oral Squamous Cell Carcinoma in a Horse     

JAMES A. ORSINI DVM  Diplomate ACVS    DAVID M. NUNAMAKER VMD  Diplomate ACVS    CARROLL J. JONES DVM  HELEN M. ACLAND BVSC  Diplomate ACVP 《Veterinary surgery : VS》1991,20(4):264-266

A large oral squamous cell carcinoma in a 27-year-old Arabian stallion was removed by partial excision of the incisive bone. There was no gross evidence of recurrence or metastasis 5 months later.  相似文献