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Tanks of healthy juvenile rainbow trout (Oncorhynchus mykiss) were exposed to chloramine-T (10 mg/litre; 40 fish) or formalin (200 mg/litre; 40 fish) for 1 h once per week for 4 weeks. The effect of this treatment on the primary stress response was evaluated by measuring circulating cortisol levels ...
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We used hydrogen peroxide to reproduce gill lesions typical of a broad assemblage of gill diseases encountered in aquaculture, and examined the degree of growth rate depression that it caused. Additionally, we compared growth rates of 60 gill-damaged fish when they were either kept separate from (n=...
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Mushroom tyrosinase (E.C. 1.14.18.1) was evaluated as a control material for use in a plasma prophenoloxidase assay in the American lobster Homarus americanus as part of the assay's validation procedure. Reconstituted. lyophilized tyrosinase solution was stable for 72 h at 2-4degreesC. Percent ...
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The effect of oral treatment with natural or recombinant human interferon alpha (HIA) on inflammatory airway disease in young standardbreds was assessed in a double-blind, randomized clinical trial. A total of 34 horses with nasal discharge, excess mucus in the trachea, and a persistent cough of at ...
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The purpose of this research was to investigate the salinity and formalin sensitivity of a ciliate parasite (Anophryoides haemophila) of the American lobster (Homarus americanus), and to examine the target-animal (lobster) safety of chemical-bath treatments involving low salinity, formalin, or chlor...
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Reference ranges for blood chemical and cellular components in the "healthy" population of interest are required to identify alterations in individuals in association with disease and disorders. The purpose of this study was to determine reference ranges for various constituents of hemolym...
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This study was designed to investigate the effect of single short-duration bath-treatment with hydrogen peroxide (1000, 1250 or 1500 mg/l for 20 min), as currently used in treatment for sea lice, on the growth rate and gill morphology of rainbow trout. All three dose levels significantly reduced the...
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OBJECTIVE: To evaluate the effect of homologous amniotic fluid and meconium inoculated intratracheally into the lungs of neonatal rats. ANIMALS: 153 male 7-day-old Fischer-344 rats. PROCEDURE: Amniotic fluid was obtained by cesarean section from the uterus of pregnant rats and meconium was collected...
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During a longitudinal survey from June until October 1987 cytological blood parameters of smoltified marine cultured rainbow trout, Oncorhynchus mykiss (Walbaum), were monitored. In this period, the trout were exposed to environmental stress resulting in summer mortality. The statistical analyses sh...
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Babesia microti-like organisms have recently been identified as a cause of hemolytic anemia and azotemia in European dogs. A genetically and morphologically similar B. microti-like parasite has been identified in two foxes from North America. In order to assess the prevalence of this parasite in Nor...
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OBJECTIVE: To determine the effects of preoperative administration of ketoprofen on anesthetic requirements and signs of postoperative pain in dogs undergoing elective ovariohysterectomy. DESIGN: Randomized, controlled clinical trial. ANIMALS: 22 clinically normal client-owned dogs. PROCEDURE: 60 mi...
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Adult ticks were found on 2 cats and a dog in the Charlottetown area between June and November 1989. The 3 ticks were identified as I. dammini. Serum samples from the 2 cats were examined for antibodies to Borrelia burgdorferi; IFA titres were less than 1:32 in both cats. It is uncertain whether in ...
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A 1-year-old Cairn Terrier had a history of chronic coughing which was worse after eating or drinking and which had not responded to antibiotics or corticosteroids. The dog had increased bronchial tones and a mild neutrophilia and a transtracheal aspirate showed neutrophilic inflammation with sepsis...
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Background: Therapeutic decisions regarding urinalysis are commonly based on the presence of white and red blood cells. Traditionally, numbers per high-power field are estimated using wet-mount microscopic examination. This technique is not standardized and counts are likely prone to inaccuracy. In ...
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OBJECTIVE: To compare the effects of xylazine bolus versus medetomidine constant rate infusion (MCRI) on cardiopulmonary function and depth of anesthesia in dorsally recumbent, spontaneously breathing, isoflurane-anesthetized horses. DESIGN: Prospective, randomized crossover study. ANIMALS: 10 he...
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American lobsters Homarus americanus were inoculated with a field isolate of the Gram-positive bacterium Aerococcus viridans var. homari, causative agent of gaffkemia, at 1 x 10(6), 1 x 10(4) or 1 x 10(2) colony forming units (CFU) kg(-1) or with sterile 3% NaCl and maintained at 10 or 15 degrees C ...
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Hyperthyroidism can increase the renal excretion of magnesium and thus cause hypomagnesemia in various species. Anaerobically collected blood samples from 15 hyperthyroid and 40 normal, healthy cats were analyzed with an ion-selective electrode analyzer and a serum biochemical analyzer. There was no...
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BACKGROUND: Evaluation of serum magnesium (Mg) concentration is becoming important in human and veterinary critical care medicine. An ion-selective electrode can measure the physiologically active ionized fraction. OBJECTIVES: The purpose of this study was to validate an ion-specific electrode analy...
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A homogenous enzyme immunoassay (EIA) for measurement of serum thyroxine (T4) concentration was evaluated for use with canine and feline serum. The EIA method was linear from 0 to 150 nmol T4/L for human serum, 0 to 94 nmol T4/L for feline serum and 10 to 60 nmol T4/L for canine serum. Intra- and in...