Echocardiographic evaluation of dogs receiving 1:1 thiopental/propofol in a clinical setting     

AT  Evans  LK Anderson  J Hauptman 《Veterinary anaesthesia and analgesia》2003,30(2):102-102

The purpose of this study was to compare the echocardiographic Doppler blood pressure and heart rate effects of 1:1 thiopental/propofol with thiopental and propofol, when used as anesthesia‐induction agents. Seven healthy dogs (six Beagles and one Pembroke Welsh Corgi), ranging in age from 1 to 9 years and weighing 14.2 ± 2.4 kg (mean ± SD), were used during the study. In a cross‐over study design with a minimum drug interval of 3 days, each dog received propofol, thiopental, or a mixture of propofol–thiopental IV until each dog received all the three anesthetic agents. An initial dose (propofol 4.9 ± 0.8 mg kg^?1; thiopental 12.9 ± 2.4 mg kg^?1; propofol–thiopental 2.3 ± 0.3 mg kg^?1 (P)?5.7 ± 0.8 mg kg^?1 (T)) of each anesthetic agent was titrated IV until intubation was accomplished. Echocardiographic Doppler blood pressure and heart rate variables were recorded prior to anesthesia and at 1, 5, and 10 minutes after induction of anesthesia. anova and the Bonferroni's t‐test were used to evaluate the groups for differences. Alpha was <0.05. There was no significant effect of treatment on systolic or diastolic ventricular wall thickness, septal thickness, left atrial diameter, or systolic left ventricular diameter. There was a tendency for diastolic left ventricular diameter to decrease over time. There was a tendency for heart rate to increase with a significant difference at the 10‐minute time period between propofol (109 ± 26 beats minute^?1) and thiopental (129 ± 23 beats minute^?1). At the 10‐minute recording period, heart rate following the propofol/thiopental mixture (110 ± 34 beats minute^?1) was closer to that following propofol than to that following thiopental. With all induction agents, indirect blood pressure tended to decrease over time (p = 0.005); however, there was no difference between the groups. The changes observed were not considered to be of clinical significance. The propofol/thiopental mixture produces similar changes in echocardiographic variables when compared to propofol or thiopental, and could be substituted for propofol for induction of anesthesia in dogs.  相似文献   

Export growth and diversification in Algeria: lessons from China' s foreign trade experience     

Celia Bouzekri 《山东饲料》2013,(8)

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Export growth and diversification in Algeria:lessons from China’s foreign trade experience     

Celia Bouzekri 《山东饲料》2013,(11):52-53

Algeria like many of its Middle Eastern and North African(MENA) counterparts,rely heavily on the industry of fossil fuels,such as gas and petroleum.This big reliance of Algerian economy on hydrocarbon exports revenue makes it very vulnerable to external shocks.So since the late 1990s different measures had been adopted to help promote the diversification of exports,but so far the adoption of these measures,has mixed results and has failed to boost foreign trade out of Hydrocarbons exports in a significant way.But unlike Algeria,China has been the most successful developing country in this modern era of globalization.It was one of the poorest countries in the world in 1980s,and since initiating economic reform after 1978 its GDP has expanded at a steady rate over 10% and it`s foreign trade is considered as one of the most important in the world.Given these facts the purpose of this paper is to analyze,why Algeria struggles to develop and diversify its exports out of Hydrocarbons.And what are the engines of the impressive growth of china’s foreign trade,if any;lessons can Algeria take from china’s foreign trade experience.  相似文献   

European outbreak of atypical myopathy in the autumn 2009     

Gaby Van Galen DVM  MSc  DECEIM  Helene Amory DVM  PhD  DECEIM  Evita Busschers DVM  DACVS  Dominique Cassart DVM  PhD  Marco De Bruijn DVM  DECEIM  Vincent Gerber DVM  PhD  DECEIM  John Keen DVM  MSc  DECEIM  Laurence Lefere DVM  Christel Marcillaud Pitel DVM  Celia Marr DVM  PhD  DECEIM  Jessica‐M. V. Müller DVM  DECEIM  Xavier Pineau DVM  Claude Saegerman PhD  Charlotte Sandersen DVM  PhD  DECEIM  Didier Serteyn DVM  PhD  DECVAA  Sara Torfs DVM  Lucia Unger DVM  Denis Verwilghen DVM  MSc  DECVS  Dominique‐Marie Votion DVM  PhD 《Journal of Veterinary Emergency and Critical Care》2010,20(5):528-532

Background – Atypical myopathy is an acute, severe rhabdomyolysis occurring in grazing horses. In the beginning of October 2009, a new outbreak occurred in several European countries. Geographic, demographic and clinical data of the reported cases in the month October 2009 are described. Key Findings – The survival rate in this outbreak was 25%. The most frequently observed clinical signs were congested mucous membranes, dyspnea, tachycardia, depression, weakness, stiffness, recumbency, trembling, sweating, and myoglobinuria. Nonsurvivors were significantly more likely to be recumbent than survivors. Prognostic factors, symptomatic treatment, and preventive measures are discussed. Significance – Differences were encountered during the described outbreak of atypical myopathy in October 2009 compared with previous outbreaks reported. Equine practitioners should be aware that previous epidemiological studies have shown that after a high prevalence in the autumn, new cases are likely to occur in the following spring.  相似文献   

Growth,yield and fruit quality of ‘Van’ and ‘Stark Hardy Giant’ sweet cherry cultivars as influenced by grafting on different rootstocks     

Celia M. Cantín  Jorge Pinochet  Yolanda Gogorcena  María Ángeles Moreno 《Scientia Horticulturae》2010

The influence of Adara, CAB 6P, Gisela 5, MaxMa 14, Saint Lucie GF 64 (SL 64), Saint Lucie GF 405 (SL 405), and Tabel rootstocks onto vegetative growth, yield and fruit quality of ‘Van’ and ‘Stark Hardy Giant’ (SHG) sweet cherry cultivars was studied during 10 years after grafting. The experiment was performed in the Ebro Valley (Zaragoza, Spain), on a heavy and calcareous soil. Significant differences in some of these parameters such as vigour, yield, fruit size, soluble solids content (SSC), titratable acidity (TA), skin colour and fruit firmness were examined among rootstocks. In general, the highest vigour, annual and cumulative yield were induced by Adara rootstock, whereas Gisela 5 induced the lowest when grafted with both cultivars. The highest yield efficiency was induced by Gisela 5 due to its low trunk cross-sectional area (TCSA), together with Adara, CAB 6P and Tabel for ‘SHG’ cultivar. Regarding fruit quality, Adara, CAB 6P and MaxMa 14 showed, in general, the highest fruit weight and the more attractive skin colour for both sweet cherry cultivars. Furthermore, the high yield shown by Adara did not significantly affect its fruit size. Cherries of trees grafted on Adara also showed high firmness, which implies a better resistance to post-harvest damage. CAB 6P showed a tendency to induce higher TA. Despite the higher firmness of fruits on Gisela 5 and its tendency to induce higher SSC and ripening index, the smaller size fruits together with the less attractive skin colour resulted in a non-interesting rootstock in terms of fruit quality for our growing conditions. Interesting correlations were found among quality parameters, such as the positive correlation showed by SSC with fruit weight and TA. The work demonstrates that the scion–rootstock combination influences some important sweet cherry attributes such as vigour, yield, fruit size, acidity, skin colour and firmness.  相似文献   

Domestication of the mud crab <Emphasis Type="Italic">Scylla serrata</Emphasis>     

Emilia T. Quinitio  Joana Joy de la Cruz  Maria Rowena R. Eguia  Fe Dolores Parado-Estepa  Gaudioso Pates  Celia R. Lavilla-Pitogo 《Aquaculture International》2011,19(2):237-250

The significant decrease in wild mud crab population highlights the need to manage the resources and domesticate crabs. This paper presents the initial results of the domestication of mud crab Scylla serrata aimed at producing good-quality captive broodstock. The analysis of the genetic structure of the base population was done as a prerequisite for domestication. Adult S. serrata from the northern to southern parts of the Philippines (Cagayan, Camarines, Samar, and Surigao) were obtained for genetic diversity analysis and domestication. Analysis of molecular variance showed that differences in the genetic variability between the four populations were not significant. Moreover, no significant deviation from Hardy–Weinberg Equilibrium was observed in each sample population and even in pooled populations. Body weight was positively correlated with the carapace width. Second spawning occurred 41–46 days after the first spawning and 34 days from second to third spawning. However, there was a decrease in the number of zoea in repeat spawnings. Twenty-four first-generation (F₁) families were produced from the four sites. The duration from spawning of the base population (P₀) to attainment of broodstock size F₁ was 10–14 months. Four second-generation (F₂) families were produced after 11–12 months. Up to the F₂, crabs tested negative for six viruses: white spot syndrome virus, infectious hypodermal and hematopoietic necrosis virus, gill-associated virus, yellow head virus, Taura syndrome virus, and infectious myonecrosis virus. The reproductive performance of P₀ was comparable to the succeeding generations. Several families were obtained from one population in a year. However, due to the cannibalistic behavior of crabs, more space is required for the nursery and grow-out phase. The domestication of S. serrata is the first study done on any mud crab species in the Indo-west Pacific region. The initial results would serve as guide to understand and eliminate the barriers to mud crab domestication. The breeding technology developed from this study will support the production of good-quality seedstock for farming.  相似文献   

Effect of dietary protein‐to‐energy ratio on reproduction in female redclaw crayfish Cherax quadricarinatus     

Hervey Rodríguez‐González  Humberto Villarreal  Alfredo Hernández‐Llamas  Manuel García‐Ulloa  Celia Vázquez‐Boucard  Vania Serrano‐Pinto 《Aquaculture Research》2011,42(12):1840-1847

The effect of eight diets with different protein‐to‐energy ratios (P–E ratio=10, 11, 14, 16, 18, 20, 22, 24 mg kJ^?1) on reproduction of female redclaw crayfish Cherax quadricarinatus was tested under laboratory conditions. After 75 days, there was a significant effect of the P–E ratio on final weight, spawning females and the number of juveniles per female. Using the broken‐line and quadratic equations, optimal values for the P–E ratio were: 16.0, 17.1 and 16.0 mg kJ^?1. The P–E ratio significantly affected protein and carbohydrate content and energy in the hepatopancreas. The broken‐line model indicated that the respective recommended values of the P–E ratio for these parameters were: 21.8, 16.7 and 18.6 mg kJ^?1. The concentration of carbohydrates and energy in muscle tended to significantly diminish as the P–E ratio increased. From broken‐line regression analysis, the recommended P–E ratio was 16.6 and 20.2 mg kJ^?1 respectively. No significant differences were found in survival, fecundity, vitellin content in eggs, protein and lipid content in muscle and lipids in the hepatopancreas. We concluded that, overall, a P–E ratio of 18±2 mg kJ^?1 is optimal for reproductive activity of female redclaw crayfish.  相似文献   

Accuracy of carrot yield forecasting using proximal hyperspectral and satellite multispectral data     

Suarez  Luz Angelica  Robson  Andrew  McPhee  John  O’Halloran  Julie  van Sprang  Celia 《Precision Agriculture》2020,21(6):1304-1326

Precision Agriculture - Proximal and remote sensors have proved their effectiveness for the estimation of several biophysical and biochemical variables, including yield, in many different crops....  相似文献   

Corazón Cerdo: Sistema Papilo-Tendino-Valvular del Ventriculo Derecho     

L. Alvarez  R. Saucedo  Antonia  Aranega  Consolación Melguizo  y  Celia  Velez Amelia E.  Aránega 《Anatomia, histologia, embryologia》1993,22(4):319-323

The right ventricle was studied in 75 anatomically normal swine hearts. Nine parameters in the papillo-tendino valvular system and three corresponding to the tricuspid orifice, pulmonary orifice and length of the inflow tract were measured. Correlations were established between the parameters and heart weight in grams, between the different parameters themselves, and between heart weight and body weight. The results were compared with similar data from human hearts, and were considered of use to researchers planning to use the swine heart as an experimental model to study congenital or induced heart diseases, or as a reference for the clinical interpretation of spontaneous cardiac, anomalies in swine.  相似文献   

Detection of bovine respiratory syncytial virus in experimentally infected balb/c mice     

Almeida RS  Domingues HG  Coswig LT  D'Arce RC  de Carvalho RF  Arns CW 《Veterinary research》2004,35(2):189-197

The present study used an RT-nested-PCR and an immunohistochemistry assay to detect bovine respiratory syncytial virus in tissues from experimentally infected balb/c mice. As a first step, Chicken Embryo Related (CER) cell monolayers infected with the BRSV-25-BR strain isolated in Brazil were used for antigen production. Then, the infected lung and tracheal tissues of female balb/c mice were collected on 3, 5, 7 and 10 days post-infection and submitted to both techniques. Primers specific to F and G genes that amplify fragments of 481 bp and 371 bp, respectively, were used. The BRSV detection was not successful in all of the animals tested. The genomic fragment of the G gene from the organs of some infected mice on all analyzed post-infection days was amplified. However, in the RT-nested-PCR corresponding to the F gene, it was not possible to observe any amplified fragment. This was probably due to the higher sensitivity of the developed technique to amplify the fragment corresponding to the G gene compared to the F gene. Moreover, only three of the lungs collected five days post-infection were positive by immunohistochemistry. To the author's knowledge, this is the first study reporting bovine respiratory syncytial virus detection in balb/c mice after experimental inoculation.  相似文献