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1.
Perceptions and opinions of pet owners in the United Sates about surgery,pain management,and anesthesia in dogs and cats 下载免费PDF全文
Bradley T. Simon DVM MSc DACVAA Elizabeth M. Scallan DVM MBA MS CVA CCRP Dirsko J. F. Von Pfeil DVM DACVS DECVS DACVSMR Daniel T. Boruta DVM DACVAA Rick Wall DVM DACVSMR CCRP Belle M. Nibblett DVM MVSc DACVIM O Odette DVM DACVAA Guy Beauchamp PhD Paulo V. Steagall DVM MSc PhD DACVAA 《Veterinary surgery : VS》2018,47(2):277-284
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Sylvie Dufour Maïté Montero Nadine Le Belle Marc Bassompierre Judy A. King Robert P. Millar Richard E. Peter Yves-Alain Fontaine 《Fish physiology and biochemistry》1993,11(1-6):99-106
Using specific radioimmunoassays for the two GnRH molecular forms present in the European eel, Anguilla anguilla, (mGnRH and cGnRH II), we compared their distributions in the pituitary and different parts of the brain of female silver eels, as well as the modifications of their levels in experimentally matured female eels (treated with carp pituitary extract). In control eels, mGnRH levels were higher than cGnRH II levels in the pituitary, olfactory lobes and telencephalon, di- and mesencephalon, while the opposite was found in the posterior part of the brain (met- and myelencephalon). Experimental sexual maturation of the gonads significantly increased mGnRH levels in the pituitary and anterior parts of the brain; such a positive effect was not observed on the low cGnRH II levels, which were, in contrast, reduced. These data indicate that the positive feedback of gonadal hormones on GnRH, that we previously demonstrated, would specifically affect the mGnRH form. The differential distribution and control of mGnRH and cGnRH II suggest that these two forms have different physiological roles in the eel. The large increase in mGnRH during sexual maturation suggests the prime implication of this form in the neuroendocrine control of reproduction. 相似文献
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The oxygen consumption (VO2) of the lesser double-collared sunbird, Nectarinia chalybea. was measured at ambient temperatures (Ta) from 7 to 35°C. The diel variation in body temperature (Tb) and wet thermal conductance (C) was also determined. The sunbirds (mean mass 8,36 g ± S.E. 0.21 g) showed a pronounced diel cycle of VO2, with a mean reduction of 50% at night. Basal metabolic rate was estimated to be 3.23 ml O2/g.h, which is 88% of the predicted value for a passerine bird of this size. There was a mean reduction in Tb of 3.6°C at night. Both day and night values of Tb decreased with decreasing Ta, as did individual values of C. Winter breeding in the south-west Cape is energetically stressful for lesser double-collared sunbirds, but they have the physiological capacity to reduce their energy expenditure substantially at night. 相似文献
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Andrea B. Spevakow Belle Marie D. Nibblett Anthony P. Carr Kathleen A. Linn 《The Canadian veterinary journal. La revue veterinaire canadienne》2010,51(1):85-88
A chronic, partial mesenteric volvulus was found on laparotomy of an adult Bernese mountain dog with a 4-month history of intermittent vomiting, diarrhea, and weight loss. The dog had elevated cholestatic and hepatocellular leakage enzymes, increased bile acids, azotemia, isosthenuria, and a hypokalemic, hypochloremic, metabolic alkalosis. The dog recovered fully following reduction of the volvulus. 相似文献
6.
Stephen E. Wright Belle M. Sigal A. John Bailer 《Journal of Agricultural, Biological & Environmental Statistics》2010,15(4):491-509
An optimal experimental design combines high-quality parameter estimation with efficient use of resources. This paper proposes
a new method for heuristic optimization of experimental designs in the presence of variable sampling costs. The method finds
the inexpensive designs with desirable statistical qualities and provides substantial insight regarding the relative importance
(in monetary terms) of sampling at specific design points. The method is illustrated within the context of a start-stop exposure
study in aquatic toxicology. Fast heuristics enable the analyses of a large range of sensitivity issues and examination of
trade-offs between information and cost. The method is described for designs in which replicate sampling is prohibited; a
generalization allowing for replicate sampling is provided as an appendix in the online supplemental materials. 相似文献
7.
Macieira Dde B Messick JB Cerqueira Ade M Freire IM Linhares GF Almeida NK Almosny NR 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2005,34(1):44-48
BACKGROUND: Infection with Ehrlichia canis causes a highly variable, multisystemic disease in dogs. Nevertheless, many clinicians in Rio de Janeiro, Brazil, use the presence of only thrombocytopenia to make a presumptive diagnosis of E canis infection. OBJECTIVE: The objective of this study was to determine the prevalence of E canis in thrombocytopenic dogs from Rio de Janeiro, Brazil, using polymerase chain reaction (PCR). METHODS: Following DNA extraction of whole blood samples from 226 dogs, PCR assays were done using primers for rickettsial DNA (including Ehrlichia spp, Anaplasma platys and A phagocytophilum) and using E canis-specific primers (16S rRNA gene). Dogs were grouped as thrombocytopenic and nonthrombocytopenic based on platelet counts. The null hypothesis that there was no difference in the prevalence of E canis in these groups was rejected at P<.05. RESULTS: Thirty-six (32.1%) of the thrombocytopenic dogs and 4 (3.5%) of the nonthrombocytopenic dogs were positive for rickettsial gene sequences (P<.0001). Further, 30 (26.8%) of thrombocytopenic dogs and 4 (3.5%) nonthrombocytopenic dogs were positive for E canis-specific gene sequences (P<.0001). CONCLUSIONS: Although the prevalence of E canis infection was higher in thrombocytopenic dogs, less than one third of these dogs had demonstrable E canis infection. Thus, thrombocytopenia is not specific for the detection of E canis infection and should not be used solely to establish a diagnosis of canine ehrlichiosis, even in a geographic area with relatively high disease prevalence. 相似文献
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Belle Marie D. Nibblett Elisabeth C. Snead Cheryl Waldner Susan M. Taylor Marion L. Jackson Laina M. Knorr 《The Canadian veterinary journal. La revue veterinaire canadienne》2009,50(11):1181-1185
This study summarizes the diagnostic findings from all anemic cats diagnosed with hemotropic mycoplasma (HM) infections at the Western College of Veterinary Medicine — Veterinary Teaching Hospital between 1996 and 2005. The objectives were to determine the frequency of HM-induced anemia among all cats presented with anemia during this period, the clinical findings and risk factors associated with clinical HM infection, and factors affecting or predicting survival. Medical records were examined from 23 cats with HM-induced anemia from the total of 170 cats diagnosed with anemia during this period. The frequency of HM-induced anemia was 14% (23/170) among all anemic cats. Cats with HM-induced anemia were less likely to be purebred (P = 0.04) than other cats with anemia. Of the cats with HM-induced anemia, those with positive retroviral status (P = 0.01), concurrent illness (P < 0.01), or lack of erythroid regeneration (P = 0.01) were most likely to die. The 1-year survival of HM-infected cats was 65% (13/20). 相似文献
9.
Sylvie Dufour Nadine Le Belle Sylvie Baloche Yves-Alain Fontaine 《Fish physiology and biochemistry》1989,7(1-6):157-162
Treatment of sham-operated female silver eels with carp pituitary extract stimulated ovarian development and induced increases
in pituitary gonadotropin (GTH) and gonadoliberin (GnRH) contents. Both effects of carp pituitary extract were abolished in
ovariectomized eels, indicating the involvement of the gonads. Endogenous sexual steroids, the secretion of which was increased
during sexual maturation, should be responsible for the stimulation of GTH and GnRH levels. Ovariectomy itself had no significant
effect on pituitary GTH and GnRH contents, reflecting the fact that, at the silver stage, sexual steroid levels are too low
to exert any significant effect on pituitary GTH and GnRH. The positive feedback control exerted by the gonads on GTH and
GnRH levels during sexual maturation, in the eel as well as in some other teleosts, would produce an amplification of the
pubertal stimulation of the hypothalamo-pituitary-gonadal axis. 相似文献
10.
Grazziotin AL Santos AP Guimaraes AM Mohamed A Cubas ZS de Oliveira MJ dos Santos LC de Moraes W Vieira RF Donatti L de Barros Filho IR Biondo AW Messick JB 《Veterinary microbiology》2011,152(3-4):415-419
Hemotrophic mycoplasmas (hemoplasmas) are bacteria that attach to red blood cells of mammals, leading to acute and/or subclinical disease in infected animals. It has been suggested that Mycoplasma ovis, a hemoplasma that infects sheep and goats worldwide, may also infect deer. The aim of this study was to evaluate whether South American deer are infected with M. ovis. EDTA-anticoagulated blood samples from a herd of 32 captive South American deer were collected. DNA extraction of blood samples was performed followed by PCR amplification of the 16S and 23S rRNA genes, and sequencing of products. Using M. ovis PCR, 27/31 (87%) were positive, including 21/22 Mazama nana; 2/3 Mazama americana and 4/6 Blastocerus dichotomus. Sequencing of the nearly entire 16S rRNA gene of 26/27 positive samples showed 98.2-98.8% identity to M. ovis of sheep (GenBank, AF338268) and 98.6-99.4% identity to M. ovis-like of a fawn (FJ824847); the 23S rRNA gene from one of these isolates and the fawn's had 97.6% identity. The remaining isolate had just 94.9% identity to the 16S rRNA gene of M. ovis and only 89.4% identity to the 23S rRNA gene of the fawn's M. ovis. This is the first report of M. ovis in captive South American deer, revealing a high prevalence of hemoplasma infection in these animals. 相似文献