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991.
The Illinois soybean crop was monitored in 1965, 1966, 1967, 1971, and 1974 for dieldrin residues resulting from aldrin applied to corn in the years before soybean cultivation. Residue levels of dieldrin in soybeans increased between 1965 and 1974. The percent of fields which had soybeans with a dieldrin level above 0.03 ppm increased between 1965 and 1974. Dieldrin residue levels in soybeans grown in Illinois are expected to decline now that the use of aldrin has diminished and will soon cease. No significant correlation was evident between the dieldrin levels in soybeans and the area of the State where they had grown, the date of planting, or the variety. 相似文献
992.
S. Pineau L. W. Belbeck S. Moore 《The Canadian veterinary journal. La revue veterinaire canadienne》1980,21(3):82-84
Mature dogs were vaccinated with a myxovirus vaccine. At this time, half of the dogs were also given a subcutaneous injection of levamisole hydrochloride (2.2 mg/kg). Blood platelets were counted daily. The dogs that had received only the vaccine showed, after 48 hours, a 48% decrease in platelets. Levamisole reduced the thrombocytopenia associated with myxovirus vaccination. Levamisole could have a protective effect on platelets by preventing their aggregation induced by viral neuraminidase. 相似文献
993.
In laboratory experiments autoclaved University of California (UC) soil mix containing 5–20 mg of methylmercury dicyandiamide (MMDD)/g of soil was infested with Penicillium notatum. Bioassays were made at intervals up to 63 days later to detect the fungicide's rate of inactivation. The culture of P. notatum had been adapted to grow in the presence of high MMDD concentrations in an agar medium. Relationships among initial MMDD concentration, presence of P. notatum and incidence of damping-off of peas caused by Pythium ultimum were determined. 相似文献
994.
995.
C M Trim J N Moore M M Hardee G E Hardee D A Graham 《American journal of veterinary research》1985,46(4):928-931
Prostacyclin was infused IV into 6 horses anesthetized with halothane. Three dosage rates (10, 30, and 100 ng/kg of body weight/min) were evaluated in each horse. Facial and pulmonary artery pressures, heart rate, cardiac output, blood temperature, and arterial and mixed venous pH, PCO2, and PO2 were measured. Arterial blood was collected for determination of glucose, lactate, and PCV. Mixed venous blood was sampled for assay of 6-keto-prostaglandin F1 alpha and catecholamines. Infusion of prostacyclin at 10 ng/kg/min had no effect on the variables measured, whereas the 30 ng/kg/min dosage decreased diastolic and mean arterial pressure at 15 and 30 minutes and PaO2 at 15 minutes (P less than 0.05). Prostacyclin infusion at 100 ng/kg/min significantly decreased arterial pressure, total vascular resistance, and total pulmonary resistance. Heart rate increased slightly, and cardiac output increased by 44%. Arterial PO2 decreased from 311 mm of Hg to 137 and 135 mm of Hg at 15 and 30 minutes, respectively. Blood glucose was increased. Prostacyclin infusions of 30 and 100 ng/kg/min increased blood concentrations of 6-keto-prostaglandin F1 alpha by factors of 5 and 40, respectively. Significant changes in catecholamine concentrations did not occur. 相似文献
996.
OBJECTIVES: To report a surgical technique for treatment of nonreducible cecocolic intussusception and outcome in 8 horses. STUDY DESIGN: Retrospective study. ANIMALS: Eight horses with nonreducible cecocolic intussusception treated by cecal amputation through a right ventral colotomy. METHODS: Data were obtained from medical records and telephone conversations by using a standardized questionnaire. The large colon was exteriorized and, if necessary, evacuated of its contents through a pelvic flexure enterotomy. A second colotomy was made on the ventral surface of the right ventral colon (RVC) centered over or immediately distal to the intussusceptum. In most horses, attempts to manually reduce the intussusception by pushing the cecum from within the RVC through the cecocolic orifice were unsuccessful. Invaginated cecum was then pulled into the RVC and amputated; the cecum was either ligated with umbilical tape or sutured proximal to the site of amputation. After amputation, the remainder of the invaginated cecum was reduced. After further resection to healthy tissue, the typhlectomy was closed with a double-inverting suture pattern. RESULTS: The median horse age was 2 years (range, 1 to 8 years). Duration of colic ranged from 6 hours to 6 months. Median surgical time was 180 minutes (range, 135 to 300 minutes). Median duration of antibiotic therapy was 7 days (range, 5 to 14 days). Median duration of hospitalization was 12 days (range, 6 to 21 days). All horses survived to hospital discharge. One horse died 3 months postoperatively; however, the remainder survived (median survival, 30 months; range, 6 to 96 months) and returned to or exceeded previous function. CLINICAL RELEVANCE: Despite some contamination during surgery, horses with nonreducible cecocolic intussusception that underwent this method of surgical treatment had a good prognosis. 相似文献
997.
998.
A 5.5-year-old Siamese presented for evaluation of a three-day history of anorexia and lethargy. Upon physical examination, the cat was depressed, dehydrated, pyrexic, had injected conjunctiva and sclera, pale mucous membranes, and a grade II/VI systolic heart murmur. Thoracic radiographs revealed moderate to severe, diffuse, bronchointerstitial pulmonary changes with enlarged and tortuous pulmonary vessels. With continued hospitalization, the cat became dyspneic and died. The postmortem cytopathological examination of the liver, spleen, and lung impressions revealed reticuloendothelial cell infection with Cytauxzoon felis. 相似文献
999.
Moore DA Sischo WM Wilson DJ 《Journal of the American Veterinary Medical Association》2000,217(4):479-484
OBJECTIVE: To identify the perceived market or client demand for dairy on-farm food safety services by veterinarians, the need for a food safety continuing education program, and the educational issues that might be addressed in an on-farm food safety curriculum. DESIGN: Survey. STUDY POPULATION: Consulting dairy veterinarians, government veterinarians located in California, and meat packers slaughtering cull dairy cows in California. PROCEDURE: Results of a questionnaire supplied to veterinarians and telephone interviews with meat packer representatives were analyzed by use of univariate and multivariate logistic regression procedures. RESULTS: Some meat packers considered the quality of incoming cull dairy cattle as a control point for food safety hazards. More than 50% of dairy and government-employed veterinarians believed that a current market for on-farm food safety services exists; > 85% believed that a potential market exists. Duration since graduation was negatively correlated with belief in a current market. Government-employed veterinarians were more likely to believe in a current market. Veterinarians were more likely to express a strong interest in offering on-farm food safety services if they believed a current market exists, indicated that they already offer such services, or listed residues and pathogens as the most important issues facing the dairy industry. CONCLUSIONS AND CLINICAL RELEVANCE: Although a potential market for on-farm food safety services is perceived, veterinarians are unsure of their role in this area. new demands of meat packers slaughtering cull dairy cows may be the motivation practitioners need to broach the subject of food safety with clients. 相似文献
1000.
Tetens J Hubert JD Eddy AL Moore RM 《Journal of the American Veterinary Medical Association》2000,216(5):722-4, 685
A 2-year-old Thoroughbred filly was admitted to the hospital for evaluation of exercise intolerance. Resting videoendoscopic evaluation (i.e., while the horse was standing) of the nasopharynx and trachea revealed right arytenoid paresis and a tracheal defect that was 100 cm distal to the external nares. Surgery, consisting of a right prosthetic laryngoplasty, was performed. However, postoperative videoendoscopic evaluation revealed minimal abduction of the affected arytenoid cartilage. Dynamic videoendoscopic evaluation (i.e., while the horse was exercising) revealed the right arytenoid to be fixed in a submaximal position with no evidence of collapse into the airway. When the endoscope was positioned in the midcervical tracheal region, marked tracheal collapse was identified during exercise. Tracheal collapse can critically limit athletic function. Treatment of tracheal collapse depends on causative factors, the length of the trachea involved, and accessibility of the affected tracheal segment. The use of dynamic tracheal videoendoscopy should be considered in athletic horses with exercise intolerance in which the cause cannot be determined from resting or dynamic videoendoscopic evaluations of the nasopharynx. 相似文献