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1 - 25 of 1898
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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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Eight female Peromyscus californicus were infected with 102 or 104 Toxoplasma gondii culture-derived tachyzoites (Type II or X) isolated from southern sea otters. All but 2 mice survived infection and developed antibodies to T. gondii. The 2 fatally infected mice were inoculated with 104 tachyzoites...
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The study objective was to assess the risk of transplacental transmission of Sarcocystis neurona and Neospora hughesi in foals from 4 California farms during 3 foaling seasons. Serum of presuckle foals and serum and colostrum of periparturient mares were tested using indirect fluorescent antibody te...
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Stem cell therapy and cell-based therapies using other progenitor cells are becoming the treatment of choice for many equine orthopedic lesions. Important criteria for obtaining autogenous equine progenitor cells in vitro for use in clinical cell-based therapy include the ability to isolate and expa...
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The prevalence of bovine viral diarrhea virus (BVDV) persistency was examined in 12 Holstein dairy herds in Charlottetown, Canada, from Feb. 2009 to Oct. 2009. A total of 469 serum and ear notch biopsy pairs were collected. Depending upon the age and vaccination status, the sampled animals were divi...
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A stochastic simulation model was developed to assess the risk of introduction of Mycobacterium avium subsp. paratuberculosis infection into a dairy herd through purchase of female replacement cattle. The effects of infection prevalence in the source herd(s), number of females purchased, and testing...
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The aim of the study was to measure the effect of radiological hip and elbow dysplasia status and breed on overall survival in a cohort of four large dog breeds in Norway. Privately owned dogs of the Newfoundland (NF), Labrador Retriever (LR), Leonberger (LEO), and Irish Wolfhound (IW) breeds were f...
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One side of each of 20 lamb carcasses was dissected into muscle, bone and fat. The other side of each lamb was cross-sectioned at 11 sites. Photographs of cross-sections were scanned with an image analyser to measure the amount of muscle, bone and fat at each site. Estimations of the composition of ...
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During this century livestock production has increased massively through the improved ability to diagnose, treat, control and prevent certain diseases. Despite these advances, disease remains a major constraint to livestock production and welfare throughout the world. In many instances, this is a re...
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Strawberry disease (SD) in the USA is a skin disorder of unknown aetiology that occurs in rainbow trout Oncorhynchus mykiss and is characterized by bright red inflammatory lesions. To identify a candidate bacterial agent responsible for SD, we constructed 16S rDNA libraries from 7 SD lesion samples ...
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Approaches to search interface design in information retrieval are discussed emphasising the importance of user choice in search navigation.
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La aplicacion indiscriminada de fertilizantes con NPK, ademas de la aplicacion de enmiendas calcareas, en la mayoria de los suelos del Estado Monagas y Anzoategui ha causado grandes deficiencias de micronutrimentos. Esta investigacion se realizo en una siembra comercial de maiz. Es decir todas las ...
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This report was commissioned by the Salmon Aquaculture Dialogue. The Salmon Dialogue is a multi ‐ stakeholder, multi ‐ national group which was initiated by the World Wildlife Fund in 2004. Participants include salmon producers and ...
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Kidney tissues were sampled on 3 dates (March 1995, July 1995 and August 1996) from 162 juvenile rainbow trout obtained from a California State fish hatchery where N. salmonis (formerly Enterocytozoon salmonis) was endemic. Kidney tissues were used to prepare imprints stained with May-Grünwald Giem...
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Salmonella enterica subsp. enterica-serotypes lead to periodically increased morbidity and mortality in cattle herds. The bacteria can also lead to serious infections in humans. Consequently, Denmark has started a surveillance and control programme in 2002. The programme focuses on Salmonella Dublin...
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This paper discusses the potential for using observations of behaviour to recognise distress in sheep. The term distress is used to describe situations in which an animal is likely to be suffering, and is indicating this by overt behavioural signs. Literature on the behavioural responses of sheep to...
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Focuses on the application of open systems in promoting information flow and access
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The effect of repeated lamb removal on the blood leukocyte population of ewes was examined and the behavioural and endocrine responses to the stressor quantified. 12 ewes which had given birth to twins, were placed in separate pens with their lambs. After 13 days, the lambs (14-19 days old) from one...
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This study investigated the relationship between fertility and fatty acid (FA) profiles of egg chorions, total egg, and sperm cells of Arctic char, Salvelinus alpinus (L.) broodstock housed in tanks and fed a commercial diet. Fertility of semen from individual males was assessed using pooled eggs, a...
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A 2-year old gelding was referred for evaluation of severe right forelimb lameness. The horse was grade 4/5 lame on the right forelimb. Clinical, laboratory, and radiographic findings were consistent with septic arthritis and osteomyelitis. Due to poor prognosis the owner elected euthanasia. Histopa...
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Bivalve molluscs concentrate Cryptosporidium oocysts from fecal-contaminated aquatic environments and are therefore useful in monitoring water quality. A real-time TaqMan polymerase chain reaction (PCR) system was developed to allow for large scale quantitative detection of Cryptosporidium pp. in mu...