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Dr. A. Hundertmark 《Journal of pest science》1936,12(3):30-33
Ohne Zusammenfassung 相似文献
2.
Aloysia triphylla essential oil as food additive for Rhamdia quelen – Stress and antioxidant parameters 
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下载免费PDF全文 C.C. Zeppenfeld E.M.H. Saccol T.S. Pês J. Salbego G. Koakoski A.C. dos Santos B.M. Heinzmann M.A. da Cunha L.J.G. Barcellos M.A. Pavanato B.O. Caron B. Baldisserotto 《Aquaculture Nutrition》2017,23(6):1362-1367
We examined the effects of dietary supplementation for 21 days with different levels (0, 0.25 and 2.0 ml/kg) of the Aloysia triphylla essential oil (EOAT) on silver catfish (Rhamdia quelen). Cortisol levels were lower in fish fed EOAT at 2.0 ml/kg diet, and lactate levels were lower in those fed at both doses. Glucose, alanine aminotransferase, aspartate aminotransferase and triglyceride levels did not vary between groups. The biomarkers of oxidative stress, thiobarbituric acid‐reactive substances, lipid hydroperoxide, superoxide dismutase, catalase and non‐protein thiols, were lower in the brain, liver and muscle of fish fed EOAT at 2.0 ml EO/kg diet. Glutathione‐S‐transferase, reduced glutathione, plasma Na+, Cl?, and K+, and gill Na+/K+‐ATPase and H+‐ATPase did not vary between groups. Taken together, our results clearly indicate that the addition of EOAT at 2.0 ml/kg diet improves oxidative status and lowers the stress response in silver catfish. 相似文献
3.
Anaesthetic and antioxidant effects of Myrcia sylvatica (G. Mey.) DC. and Curcuma longa L. essential oils on tambaqui (Colossoma macropomum) 下载免费PDF全文
下载免费PDF全文 Etiane M H Saccol Cândida Toni Tanise S Pês Giovana M Ourique Luciane T Gressler Lenise V F Silva Rosa H V Mourão Ricardo B Oliveira Bernardo Baldisserotto Maria A Pavanato 《Aquaculture Research》2017,48(5):2012-2031
Anaesthetic substances are necessary to reduce fish stress during aquaculture activities. The objectives of this study were: (i) to determine the efficacy of essential oils (EOs) of Myrcia sylvatica (EOMS) and Curcuma longa (EOCL) as anaesthetics for Colossoma macropomum and (ii) to evaluate the effects of rapid anaesthesia and long‐term sedation (6 h) with these oils. Therefore, the main primary stress indicator (cortisol) and secondary factors (biochemical indices, hepatic metabolism, oxidative biomarkers) were measured. Sedation with the EOCL resulted in lower cortisol levels compared to control group. Total cholesterol levels were lower in fish sedated with EOMS than in control. Lactate levels were higher in fish anaesthetized with both EOs and sedated with EOCL compared to control. Both EOs increased hepatic glycogen levels after anaesthesia and EOMS increased this parameter after sedation compared to control. Anaesthesia and sedation with EOs resulted in lower levels of lipid peroxidation (LPO) compared to control. In turn, the activity of some antioxidant enzymes evaluated (superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase and glutathione‐S‐transferase), the content of non‐protein thiols and total reactive antioxidant potential were higher in tissues of fish anaesthetized and sedated with EOs compared to control. This induction of antioxidant capacity in the tissues could be due to the antioxidant property exerted by these EOs. Thus, EOMS and EOCL are recommended for anaesthesia and sedation of fish because in spite of inducing anaerobic metabolism, these EOs did not alter most biochemical parameters, reduced the LPO and increased the antioxidant capacity in vital tissues. 相似文献
4.
Luciane Tourem Gressler Ana Paula Konzen Riffel Thaylise Vey Parodi Etiane Medianeira Hundertmarck Saccol Gessi Koakoski Sílvio Teixeira da Costa Maria Amália Pavanato Berta Maria Heinzmann Bráulio Caron Denise Schmidt Susana Francisca Llesuy Leonardo José Gil Barcellos Bernardo Baldisserotto 《Aquaculture Research》2014,45(6):1061-1072
Responses to anaesthesia with essential oil (EO) of Aloysia triphylla (135 and 180 mg L?1) and tricaine methanesulfonate (MS222) (150 and 300 mg L?1) were assessed in silver catfish. Exposure to the anaesthetics elicited a stress response in the species. In the case of MS222, it was displayed as a release of cortisol into bloodstream, elevation in hematocrit and plasma ion loss. The EO presented cortisol‐blocking properties, but increased haematocrit and disturbances of hydromineral balance were observed. Liver antioxidant/oxidant status of EO and MS222‐anaesthetized silver catfish was also estimated. The synthetic anaesthetic induced lipoperoxidation, notwithstanding increased catalase contents, whereas the naturally occurring product was capable of preventing the formation of lipid peroxides, possibly due to combined actions of catalase and glutathione‐S‐transferase. Anaesthetic efficacy was also tested via induction and recovery times. Overall, the promising results obtained for the physiological parameters of the EO‐treated fish counterbalanced the slight prolonged induction time observed for 180 mg L?1. As for 135 mg L?1, both induction and recovery times were lengthy; despite that, the EO was able to promote oxidative protection and mitigate stress. None of the MS222 concentrations prompted such responses concomitantly. 相似文献
5.
Riffel AP Garcia LO Finamor IA Saccol EM Meira M Kolberg C Horst A Partata W Llesuy S Baldisserotto B Pavanato MA 《Fish physiology and biochemistry》2012,38(3):797-805
Aquatic organisms are continuously exposed to environmental variations, which can lead to physiological and biochemical alterations. Leporinus macrocephalus, known as piavu?u, is a migratory species that may be exposed to variations in dissolved oxygen levels. Studies evaluating oxidative changes undergone by this species in these conditions are scarce. Therefore, this investigation aimed at evaluating oxidative alterations in L. macrocephalus exposed to different oxygen levels for 96?h: 6.12?±?0.18, 3.99?±?0.17, 3.22?±?0.17, 2.47?±?0.30 and 0.710?±?0.07?mg?L(-1). At the end of the experimental period, fish were euthanized and livers used to determine lipid hydroperoxides, thiobarbituric acid reactive substances, catalase, glutathione-S-transferase, superoxide dismutase and thiol groups, which are an indirect measure of reduced glutathione. Results indicated a decrease in the studied parameters in hypoxic situations, suggesting a possible metabolic depression. 相似文献
6.
Serosurvey for antibodies against Salmonella species in free-ranging moose (Alces alces) from Norway
Aschfalk A Hundertmark KJ Bendiksen HR Arnemo JM Denzin N 《Berliner und Münchener tier?rztliche Wochenschrift》2003,116(9-10):417-420
An indirect ELISA was developed as a tool for surveillance of antibodies against Salmonella sp. in free-ranging moose (Alces alces) in Norway. Serum samples from 303 clinically healthy moose sampled between 1993-2000 were examined. Anti-Salmonella antibodies were detected in samples from 6 individuals (1.98%). This is the first evidence of Salmonella-seropositive free-ranging moose. Possible sources and transmission routes of Salmonella comprising environment, wildlife and man are discussed. 相似文献
7.
Calibration of the simulation model “Ceres Wheat” under conditions of soils with shallow watertable and temperate climate. Part 2: Verification of the modified model “Ceres Wheat” The Ceres Wheat yield model has been adopted to soils under wet conditions and to humide climate. The basic assumptions of the modified model have been checked. The simulated results of the soil water balance, the plant development and the nitrate losses by drain discharge give fairly well agreements to field data from a Calcaric Fluvisol (Speicherkoog, Schleswig-Holstein). The modification improves the model and leads to the opportunity to simulate special aspects in agronomical and ecological advices. 相似文献
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Ohne Zusammenfassung
Mit 2 Abbildungen 相似文献
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Calibration of the simulation model “Ceres Wheat” under conditions of soils with shallow watertable and temperate climate. Part 1: Limitations in the applicability of the original model and necessary modifications To apply the yield simulation model “Ceres Wheat” under the specific climate conditions of Schleswig Holstein, the following modifications were necessary:
- Wheat development is strongly influenced by climatic conditions. Therefore the model has been adjusted to the temperate climate of Schleswig Holstein.
- The soil water balance routine of the model was originally designed for soils without oxygen deficiencies due to water logging. Routines for shallow water tables and artificial drainage were formulated.
- Due to modifications of the soil water balance routine, the associated nitrogen routine, especially the leaching of nitrate, has been changed.
- The simulation of yield depressions due to excessive water required the introduction of a trafficability delay function and an additional reduction factor for crop development.
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Etiane M.H. Saccol Érika P. Londero Caroline A. Bressan Joseânia Salbego Luciane T. Gressler Lenise V.F. Silva Rosa H.V. Mourão Ricardo B. Oliveira Susana F. Llesuy Bernardo Baldisserotto Maria A. Pavanato 《Veterinary anaesthesia and analgesia》2017,44(3):555-566