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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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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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A detailed telephone survey of dog owners was undertaken in 1996 to determine the risk factors for biting behaviour of dogs in a household setting. Individuals were selected from a cross-sectional population of veterinary clientele in the Canadian provinces of New Brunswick, Nova Scotia, and Prince ...
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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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In North America, there are few representative data about the effects of management practices on equine welfare. In a randomized survey of 312 nonracing horses in Prince Edward Island (response rate 68.4%), owners completed a pretested questionnaire and a veterinarian examined each horse. Regression...
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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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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 factors (farm type descriptions) obtained from a previous factor analysis study were analysed using regression with prevalence estimates of enzootic pneumonia on 69 pig farms. Farms were divided on enzootic pneumonia prevalence greater or less than 10%. Multiple logistic regression analysis of t...
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Microwave radiation (2.45 GHz) was examined as a heat source for rewarming chilled neonatal piglets. A multi-mode cavity (60 x 60 x 60 cm) was constructed of 22 gauge perforated galvanized steel. The radiation applicator was a slotted waveguide, 70 cm in length, which was located centrally 46.5 cm a...
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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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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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Several types of equipment utilizing microwave (MW) radiation were developed to provide supplemental heat to young animals including broiler embryos and chicks, newly-weaned piglets and hypothermic piglets and lambs. Exposure of broilers to MW during incubation or brooding resulted in no change in g...
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Four groups of six 28-day-old piglets (three male, three female) were assigned to each of four floors, bedded concrete, bare concrete, perforated metal or raised rubber-coated metal. Each pen was equipped with a microswitch which, when pushed, turned on three 250-W infrared lamps suspended 42 cm abo...
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Fifteen pregnant primiparous sows were infused i.v. with either 0 (T40), 25 (T425) or 50 (T450) mg thyroxine (T4)/day between days 102 and 112 of gestation. Piglets were observed for the birth to suckling interval (BTS) during the first 6 h of life. At 6 h, pre-determined piglets were subjected to a...
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A clear understanding of the role of different papillae in the pig may permit the development of a more palatable diet, thus, better utilizing anatomical structures and morphological characteristics to enhance health and productivity in this domestic species. The study used ten healthy market-size, ...
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A recent genome-wide scan revealed suggestive evidence for two susceptibility loci for idiopathic generalized epilepsy (IGE) in the chromosomal regions 5p15 and 5q14–q22 in families with typical absence seizures. The present replication study tested the validity of the tentative IGE loci on chromo...
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In 4 trials, 408, 320, 160 and 400 one-day-old [male] chicks were housed on litter in pens measuring 1.8 x 2.4 m. Eight pens were used for each trial. For the first 6 days, temp. was maintained at 28 degrees C and on day 7 reduced to 16 degrees . Four pens were equipped with microswitches; the remai...
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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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From day 104 to 114 after mating, 7 sows received daily intravenous infusions of ACTH at 1 IU/kg while 6 sows received daily infusions of metyrapone at a dose decreasing stepwise from 5 mg/kg on day 104 to 1 mg/kg on day 108, followed by saline until day 114. Saline was infused into 5 control sows. ...
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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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Sows were infused with corticotropin (ACTH) at 1 IU/kg body wt per day in 1 litre saline, or with the same volume of saline, from the 104th day of gestation. In piglets from both groups of sows, blood cortisol decreased significantly after birth, while glucose increased within 2 h. The total number ...
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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...