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The characteristics of 227 biting dogs, their homes, and their victims were gathered in a detailed telephone survey of general veterinary clientele in the Canadian provinces of New Brunswick, Nova Scotia, and Prince Edward Island. All of the dogs had bitten either someone living in the same househol...
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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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Chicks housed at 16 degrees C were exposed to microwave or infrared heat. Microwave power density was 26, 13 or 10 mW/cmsuperscript 2. Chicks voluntarily demanded between 28 and 63% as much heat (min heat/hr) from the microwave source as from the infrared source at all power densities. There was no ...
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A photo-activated sound alarm was placed in a specially designed sterile semi-conical sponge tampon and inserted into the vagina of the sow after labour had commenced, or on the day before expected parturition. When the tampon was expelled from the vagina by the first-born piglet and was thus expose...
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Hereford steers, average weight 230+or-23 kg, in a 28-day trial period, had access to an individual electronically controlled Calan Broadbent feeder or to 3 or 4 feeders (groups A, B and C, respectively). The steers were fed grass legume silage ad libitum with fresh silage added 4 times daily. 24 ho...
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A retrospective cross-sectional survey of dog-owning veterinary clients was undertaken in 1996 in three Canadian provinces (New Brunswick, Nova Scotia, and Prince Edward Island) to generate a population of dogs for future use in a more detailed survey on canine behaviour. The questionnaire was desig...
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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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The effects of prenatal adrenal stimulation and synthetic glucocorticoid supplementation on development of the gastro-intestinal tract of the piglet were investigated. Twelve pregnant sows were treated with either ACTH infusion, Isoflupredone injection or Saline between days 105 and 112 of gestation...
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Chicks, 8 days of age, were housed in a wind tunnel at temperatures from 12 degrees to 28 degrees C in increments of 4 degrees C. The tunnel was equipped with a microswitch, an infrared bulb located above the switch, and a small electric fan controlled by a rheostat. After learning, chicks were expo...
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Serum concentrations of cortisol were monitored in four sows 100 days pregnant during and after cannulation through an ear vein and thereafter for 11.5 days. During this period, the sows were exposed to the following environmental temperatures: 2 days at 18 degrees C and 3 days at 2, 18 and 32 degre...
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Two trials were carried out to determine the effect of manure handling systems (MHS) on the performance of growing-finishing pigs when ventilation rate was governed by temp. The first trials compared accumulated manure (1 m-deep pit) and subsequent evacuation from under slats with continuous gravity...
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Total urinary creatinine (UC) was measured three times a day from 5 days before to 4 days after parturition in 13 Yorkshire sows. Total UC remained unchanged during days 5, 4, and 3, and decreased during days 2 and 1 before parturition. After parturition, levels increased, reaching peak values on da...
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A prototype 915-MHz microwave unit was designed to rewarm hypothermic piglets. Initial tests indicate that it is possible to rewarm piglets successfully from deep stages of hypothermia using 915-MHz microwaves. Rewarming did not cause any significant physiological changes in blood variables, nor did...
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In a 5 x 5 Latin square with 12-day periods, 35 yearling Hereford steers, 358+or-32 kg, were randomly assigned to one of 5 groups to estimate the effects of adding flavouring agents to grass-legume silage at feeding time. Flavouring agents chosen represented major taste groups: sweet (0.025% asparta...
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The objective of this study was to determine if using maternal sounds, at a higher frequency, associated with lactation, would indirectly influence milk production by the sow, thus increasing litter weight. The litters of 36 crossbred sows were allocated into 4 experimental groups. The study was div...
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Eight, pregnant, primiparous sows received i.v. infusions of TRH (5 micro g/kg; TRH group) or physiological saline (0.9% NaCl; control group) from day 105 of gestation until farrowing. The plasma concentrations of thyroxine and triiodothyronine increased in sows treated with TRH. There were no diffe...
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An experiment was conducted to establish oestrogen levels in piglet serum up to 13 h after birth. Treated piglets were given an injection of oestradiol benzoate into the vena cava immediately after birth, and controls were similarly injected with saline solution. Blood samples were obtained frequent...
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The effect of oestrogens on piglet viability was determined by recording the birth to suckling interval. Starting on day 109 after mating, daily blood samples were obtained from 15 Yorkshire sows. Immediately after birth, blood samples were taken from the umbilical cord and the vena cava of piglets,...
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A previous study of 34 nuclear pedigrees segregating juvenile myoclonic epilepsy (JME) gave significant evidence of linkage with heterogeneity to marker loci on chromosome 15q13-14 close to the candidate gene CHRNA7 (Hum. Mol. Genet. 6 (1997) 1329). The aim of this work was to further evaluate the p...