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991.
992.
Lavigne C Smith HJ 《The Canadian veterinary journal. La revue veterinaire canadienne》1983,24(12):389-390,391
In 1982, approximately 13,000 Canadian cattle were treated once for sarcoptic mange with ivermectin at a dose of 10 mg per 45.4 kg of body weight. The results showed 100% efficacy against Sarcoptes scabiei and other ectoparasites present. All cattle showed marked improvement in general condition with new hair growth and apparent weight gains by 31 days posttreatment. Surveillance of treated herds for a year following treatment showed that one parenteral treatment with ivermectin eradicated the disease from closed herds. 相似文献
993.
A condition resembling chronic malignant catarrhal fever was seen in a 9-month-old pet sika hind (Cervus nippon). From an initial acute depression, pyrexia, and anorexia, the condition progressed to include hypopyon, keratitis, lethargy, loss of condition, sloughing of one hoof and eventually death after seven weeks. There were multiple, 5 to 8mm diameter dark-red nodules throughout the mesenteries and mediastinum, along abdominal organ ligaments, and about the uterus and kidneys. Histopathology showed the nodules to be organising vascular thrombi. Concurrent perivascular mononuclear infiltrations and intravascular thrombi in many tissues confirmed that the condition was malignant catarrhal fever. 相似文献
994.
Blackmore DK 《New Zealand veterinary journal》1983,31(10):167-169
995.
Ross AD 《New Zealand veterinary journal》1983,31(10):170-172
Changes in formalin concentration were measured over time in uncontaminated solutions and solutions heavily contaminated by mud, faeces, wool or straw. Shallow plastic trays containing 1.11 of a 9% aqueous solution of formalin were exposed for 6 days (trial 1) or 8 days (trial 2) to windy autumn weather. Evaporation of solution volumes was high (47-73%). Concentration generally increased over time: by 13-31% in trial 1 and by 61-162% in trial 2. These figures represent actual increases in percentage formalin of up to 3.0% in trial 1 and up to 7.6% in trial 2. Exposure to mud, sheep faeces or wool did not affect the increase in concentration but there was no increase in the presence of straw. As exposure to excessively concentrated formalin solutions produces hyperaemia, cracking of interdigital skin and lameness in sheep it is recommended that footbath solutions should be diluted to 2-S%, prepared on the day of use and discarded daily whether contaminated or not. Addition of formalin or water to existing solutions of unknown strength should be avoided. 相似文献
996.
997.
998.
999.
Skerman TM Millar KR Sheppard AD Herceg M Hughes JM 《New Zealand veterinary journal》1983,31(4):54-57
Two groups of adult Merino sheep, initially grazed on pasture, were dosed daily with zinc sulphate (1 mg Zn/kg LW) or zinc oxide (15 mg Zn/kg LW) for six and seven weeks, respectively. On the 18th day, both groups were transferred to indoor pens together with unmedicated control sheep, and five days later the feet of all animals were infected artificially with a virulent strain of Bacteroides nodosus. By the fourth week after challenge, 85% or more of the feet challenged had developed advanced footrot, and no significant differences in the incidence and severity of lesions between dosed and un-dosed groups were recorded. Plasma zinc concentrations, monitored throughout the experiment, remained at similar levels in sheep receiving the lower dose rate and in the controls. At the higher dose rate, plasma zinc levels increased till Day 23, but thereafter declined to values comparable to those of undosed animals. At post mortem, no evidence of zinc toxicosis was found, and only the kidneys of sheep receiving the higher dosage showed a significant accumulation of zinc compared with the controls. 相似文献
1000.
Latimer CA Wyman M Szymanski C Werling K 《Journal of the American Veterinary Medical Association》1983,183(9):1003-5, 965
A cyst involving the gland of the 3rd eyelid was removed from an 8-year-old dog. Clinically the circumscribed mass resembled a pigmented neoplasm. Histologically the cyst was multiloculated, with homogeneous eosinophilic periodic acid-Schiff-positive content. Melanin pigment was present in epithelial cells and cystic lumens. Protective functions of the 3rd eyelid were retained following excisional biopsy. 相似文献