Perioperative administration of vedaprofen,tramadol or their combination does not interfere with platelet aggregation,bleeding time and biochemical variables in cats     

Juliana T. Brondani  Stelio P.L. Luna  Gracy C.G. Marcello  Carlos R. Padovani 《Journal of Feline Medicine and Surgery》2009,11(6):503-509

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Analgesic efficacy of perioperative use of vedaprofen,tramadol or their combination in cats undergoing ovariohysterectomy     

Juliana Tabarelli Brondani  Stelio Pacca Loureiro Luna  Suzane Lilian Beier  Bruno Wanatabe Minto  Carlos Roberto Padovani 《Journal of Feline Medicine and Surgery》2009,11(6):420-429

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Effects of low salinity exposure on immunological,physiological and growth performance in Litopenaeus vannamei     

Hctor M. Esparza‐Leal  Jesús T. Ponce‐Palafox  Carlos M. Cervantes‐Cervantes  Wenceslao Valenzuela‐Quinez  Antonio Luna‐Gonzlez  Ely S. Lpez‐lvarez  Nadia Vzquez‐Montoya  Mariel Lpez‐Espinoza  Rosa L. Gmez‐Peraza 《Aquaculture Research》2019,50(3):944-950

Growth, immunological and physiological parameters of white shrimp Litopenaeus vannamei reared at different salinity levels (1, 10, 15, 25 and 35 g/L) at stocking density of 214 shrimp/m³ were examined at 1, 30 and 63 days. Results showed that the total haemocyte count (THC) of shrimp decreased with time at all salinity levels, indicating a potential reduction in the resistance of shrimp against pathogens, since a low value of THC indicates a perturbation of the immune system. Glucose and protein values observed in the haemolymph throughout the study indicate that shrimp adapted well to low salinities (1, 10 and 15 g/L). Although of those shrimp reared at 10 g/L only 83.3% survived, at this salinity, shrimp depicted a higher glucose concentration in haemolymph at the beginning and end of the study.  相似文献   

Spatio‐temporal analyses of marine predator diets from data‐rich and data‐limited systems     

Arnaud Grüss  James T. Thorson  Gemma Carroll  Elizabeth L. Ng  Kirstin K. Holsman  Kerim Aydin  Stan Kotwicki  Hem N. Morzaria‐Luna  Cameron H. Ainsworth  Kevin A. Thompson 《Fish and Fisheries》2020,21(4):718-739

Accounting for variation in prey mortality and predator metabolic potential arising from spatial variation in consumption is an important task in ecology and resource management. However, there is no statistical method for processing stomach content data that accounts for fine‐scale spatio‐temporal structure while expanding individual stomach samples to population‐level estimates of predation. Therefore, we developed an approach that fits a spatio‐temporal model to both prey‐biomass‐per‐predator‐biomass data (i.e. the ratio of prey biomass in stomachs to predator weight) and predator biomass survey data, to predict “predator‐expanded‐stomach‐contents” (PESCs). PESC estimates can be used to visualize either the annual landscape of PESCs (spatio‐temporal variation), or can be aggregated across space to calculate annual variation in diet proportions (variation among prey items and among years). We demonstrated our approach in two contrasting scenarios: a data‐rich situation involving eastern Bering Sea (EBS) large‐size walleye pollock (Gadus chalcogrammus, Gadidae) for 1992–2015; and a data‐limited situation involving West Florida Shelf red grouper (Epinephelus morio, Epinephelidae) for 2011–2015. Large walleye pollock PESC was predicted to be higher in very warm years on the Middle Shelf of the EBS, where food is abundant. Red grouper PESC was variable in north‐western Florida waters, presumably due to spatio‐temporal variation in harmful algal bloom severity. Our approach can be employed to parameterize or validate diverse ecosystem models, and can serve to address many fundamental ecological questions, such as providing an improved understanding of how climate‐driven changes in spatial overlap between predator and prey distributions might influence predation pressure.  相似文献   

Maximum yield approximation and size distribution patterns of stocker size largemouth bass,Micropterus salmoides reared in a semi‐closed indoor system          下载免费PDF全文

Jeonghwan Park  Nilima Renukdas  Trevor Luna  Luke A Roy 《Aquaculture Research》2017,48(3):780-791

The main objectives of this study were to approximate the maximum yield and evaluate size dispersion of stocker size largemouth bass, Micropterus salmoides reared in a semi‐closed recirculating system for 60 days. Fingerlings with an average body weight of 36.7 g were utilized for the study. An experimental system consisting of 18 square plastic tanks (165 L) equipped with a radial flow settler, a sump, a moving bed filter, a centrifugal pump, a rapid sand filter, a down‐flow oxygen saturator and a UV sterilizer was utilized for the trial. The system was operated semi‐closed, accounting for a daily exchange rate of 30–50% of total system water volume. Experimental stocking densities were 4.5, 9.1, 18.8, 36.5, 54.6 and 73 kg m^?3 with three replicates per treatment. At the end of the experimental trial, largemouth bass showed acceptable feed conversion (1.00–1.48), specific growth rate (1.16–1.45% day^?1) and survival rate (81.8–96.6%) in all treatments, displaying the highest performance at an initial stocking density range of 18–36 kg m^?3. Based on a piecewise regression model with breakpoint analysis, maximum yield of largemouth bass fingerlings should not exceed 70 kg m^?3. As stocking density increased, relatively more underweight fingerlings were produced with a higher uniformity of fatness.  相似文献   

Physiological effects of total intravenous surgical anaesthesia using detomidine-guaiphenesin-ketamine in horses     

P.M. Taylor  S.P.L Luna  J.C. Brearley  S.S. Young  C.B. Johnson 《Veterinary anaesthesia and analgesia》1992,19(1):24-31

A combination of detomidine, guaiphenesin and ketamine was used to maintain anaesthesia for surgery in 38 horses and ponies. Cardiovascular and respiratory depression were minimal and surgical conditions were excellent. Recovery was smooth in most cases but prolonged and ataxic in some pregnant pony mares. Plasma cortisol concentration decreased during anaesthesia, even when major surgery was performed. This suggests that the anaesthetic technique does not itself induce a stress response and may suppress it. Anaesthesia was straightforward in all cases and the technique appears to have potential as an alternative to anaesthetic maintenance with volatile agents. The pharmacokinetics of the infusion are unknown and require investigation, particularly in pregnant animals.  相似文献