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An equine abuse policy was developed as an adjunct to an equine management survey. If at least 3 of 5 categories caused concern, a report to the authorities was indicated. The policy was not used but, in the absence of other guidelines, it might assist veterinarians considering potential abuse cases...
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Amino acid availability values for Atlantic salmon were evaluated for two steam- and one flame-dried herring meal, menhaden meal, anchovy meal, and a Norwegian capelin meal (Norse-LT94(R)). Apparent amino acid availabilities were calculated based on feces collected either by manual stripping or sedi...
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The welfare consequences of long-distance transportation of animals remain a controversial topic. Animals that stand for most of the long journey (especially if additional muscular activity is required to deal with postural instability) are at risk of developing fatigue. Previous observational studi...
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A low trypsin inhibitor soyabean (LTI) was characterized using electrophoresis, enzyme activity measurements and gel exclusion chromatography. The protein profiles were similar to a control soyabean. Gel exclusion chromatography resulted in two peaks of trypsin inhibitor activity in the control. The...
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Successful preservation of stallion spermatozoa is difficult because sperm damage occurs from lipid peroxidation during storage. We investigated the use of antioxidants with a standard skim milk extender and several gas environments during storage of stallion spermatozoa to reduce the harmful effect...
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Fifteen extenders were produced by adding dimethyl sulfoxide (DMSO) at 8, 10 or 12% of diluent volume to 5 diluents. All extenders were cooled to 4 degrees C. Pooled Atlantic salmon (Salmo salar ) semen with greater than 90% progressive motility was kept at 4 degrees C and added to each extender so ...
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The European green crab (Carcinusmaenas) is a non-native invasive species to North America which has been found in the north-western At- lantic Ocean since the nineteenth century. In Prince Edward Island Canada, this species has been steadily increasing over the last 10 years, especially in estuarie...
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Cryopreservation of Arctic charr semen was investigated using 3 diluents (0.3 M glucose, 0.3 M glucose with 0.011 M KCl and 0.137 M NaCl, 0.011 M KCl, 0.004 M Na2HPO4 with 7.5 g/litre L- alpha -lecithin adjusted to pH 7.5) 3 cryoprotectants [10% dimethyl sulphoxide (DMSO), 10% dimethylacetamide (DMA...
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Dimethylacetamide (DMA) was compared with DMSO as a cryoprotectant for rainbow trout (Oncorhynchus mykiss) spermatozoa on the basis of motility, percentage of dead spermatozoa, enzyme leakage and fertility of thawed spermatozoa. DMA performed better (P<0.05) than DMSO for all traits..
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There are no detailed, representative, horse-level data about equine management practices in different parts of Canada. To help address this, the demographics, management, and welfare of 312 nonracing horses in Prince Edward Island were examined in a randomized, horse-level survey during summer 2002...
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Dimethyl-acetamide was evaluated as a cryoprotectant for rainbow trout (Oncorhynchus mykiss ) semen on the basis of motility, percentage of dead spermatozoa as determined by fluorometry, and fertility of frozen-thawed spermatozoa. Dimethyl-acetamide performed significantly better (P<0.05) than th...
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Blood glucose, free fatty acids, insulin, thyroxine and free thyroxine were measured in fat (weight 90 kg) and thin (55 kg) adult sheep at 4 levels of feed intake. There were differences between groups in blood metabolites and hormones and the possibility of insulin resistance occurring in fat rumin...
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Haddock (Melanogrammus aeglefinus) is a gadoid fish species that deposits dietary lipid mainly in the liver. The fatty acid (FA) beta-oxidation activity of various tissues was evaluated in juvenile haddock fed graded levels of lipid. The catabolism of a radiolabelled FA, [1-(14)C]palmitoyl-CoA, thro...
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The effects of extender composition and freezing rate on motility and fertility of frozen-thawed Arctic char, Salvelinus alpinus, spermatozoa were investigated. Three freezing rates, two semen diluents and three cryoprotectants were tested. Semen frozen in 0.3 mol L-1 glucose diluent with 10% methan...
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A trial in which roasted ground lupin, raw ground lupin or soyabean meal were fed to cows to establish possible effects on the fatty acid composition of milk (24 cows) and meat (28 cows) is reported. Results indicated that, in lupin-fed cows, even with a relatively low level of dietary fat, synthesi...
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The effect on nutritional quality of barley, maize, oats and wheat after flame roasting at 3 temperatures for each cereal (between 74 and 193 degrees C) in a commercial propane heated roaster at 67, 100 and 133% of the manufacturer's suggested temperatures was studied. A sample of unroasted material...
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The influence of food deprivation on the rate of oxygen consumption and the rate of mobilization/utilization of energy reserves in F2 generation growth-enhanced transgenic Atlantic salmon were compared relative to their non-transgenic counterparts, over a pre-smolt weight interval of 8 to 55 g. Thro...
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In two trials, Arctic char (Salvelinus alpinus) semen was frozen in 0.5 mL straws using extenders consisting of 0.3 M glucose and 10%, 12.5% or 15% methanol. Cryopreserved semen was thawed by immersing straws in 25°C water for 17 s (11.6°C s-1) or in 5°C water for 60 s (3.3°C s-1). The viability...
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Lower fertility of preserved stallion semen may be caused by damage to the spermatozoa or premature capacitation during storage. We investigated the use of the flavonoid, quercetin, with a standard skim milk extender for storage of stallion spermatozoa to prevent premature capacitation and acrosome ...
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Seminal plasma protein of Arctic char Salvelinus alpinus was. characterized using sodium dodecyl sulfate (SDS) gel electrophoresis. Twelve protein bands with molecular weights of 7.2, 12.4, 15.3, 20.0, 20.4, 22.6, 39.4, 66.3, 74.0, 92.0, 94.5, and 130.1 kilodaltons (kDa) were detected. The effect of...