A review of silvopastoral systems in native forests of Nothofagus antarctica in southern Patagonia,Argentina     

Pablo Luis Peri  Héctor A. Bahamonde  María V. Lencinas  Verónica Gargaglione  Rosina Soler  Sebastián Ormaechea  Guillermo Martínez Pastur 《Agroforestry Systems》2016,90(6):933-960

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Incomplete Mixing in the Fate and Transport of Arsenic at a River Affected by Acid Drainage     

Paula Guerra  Christian Gonzalez  Cristian Escauriaza  Gonzalo Pizarro  Pablo Pasten 《Water, air, and soil pollution》2016,227(3):73

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Non‐target effects of two sunflower seed treatments on Orius insidiosus (Hemiptera: Anthocoridae)          下载免费PDF全文

Pablo C Gontijo  Valéria F Moscardini  JP Michaud  Geraldo A Carvalho 《Pest management science》2015,71(4):515-522

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Inclusion of fish and krill meal in extruded diets for Octopus vulgaris (Cuvier, 1797): assessment of acceptance     

Pablo Querol  Piedad S Morillo‐Velarde  Jesus Cerezo Valverde  Martinez Llorens Silvia  Andres Vicente Moñino  Miguel Jover Cerdá  Ana Tomás Vidal 《Aquaculture Research》2014,45(8):1421-1424

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Multiple abscesses caused by <Emphasis Type="Italic">Salmonella enterica</Emphasis> and <Emphasis Type="Italic">Corynebacterium pseudotuberculosis</Emphasis> in a dromedary camel     

Tejedor-Junco MT  Lupiola P  Caballero MJ  Corbera JA  Gutierrez C 《Tropical animal health and production》2009,41(5):711-714

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Retrospective serological survey of Porcine circovirus-2 infection in Mexico          下载免费PDF全文

Humberto Ramírez-Mendoza  Hctor Castillo-Jurez  Jesús Hernndez  Pablo Correa    Joaquim Segals 《Canadian journal of veterinary research》2009,73(1):21-24

Postweaning multisystemic wasting syndrome (PMWS) is considered a multifactorial emerging disease of which Porcine circovirus-2 (PCV-2) is the necessary infectious cause. However, retrospective studies have shown that PMWS is not a new disease and that PCV-2 has been circulating in pig farms for years. Most of these studies were performed in Europe and Asia; only a few were performed in North or South America.  相似文献   

Di-tri-octahedral smectite for the prevention of post-operative diarrhea in equids with surgical disease of the large intestine: Results of a randomized clinical trial     

Diana M. Hassel  Phoebe A. Smith  Jorge E. Nieto  Pablo Beldomenico  Sharon J. Spier 《Veterinary journal (London, England : 1997)》2009,182(2):210-214

The aim of this study was to evaluate the effects of a commercially available di-tri-octahedral (DTO) smectite product on clinical signs and prevalence of post-operative diarrhea in horses with colic associated with disease of the large intestine. Sixty-seven horses with surgical disease of the large intestine were randomly assigned to be treated with DTO smectite (n = 37; 0.5 kg via nasogastric intubation every 24 h for 3 days post-operatively) or a placebo (n = 30). The effect of treatment on fecal scores and clinical and hematological parameters, including heart rate, mucous membrane color, temperature, total white blood cell count, total neutrophil count and total plasma protein values, were determined.Horses treated with DTO smectite had a significant reduction in the prevalence of post-operative diarrhea (10.8%), compared with controls (41.4%). A significant improvement in mucous membrane color was observed 72 h post-operatively in horses receiving treatment, compared with placebo. Administration of DTO smectite to colic patients with disease of the large intestine reduced the occurrence of diarrhea in the early post-operative period.  相似文献   

A recombinant-based ELISA evaluating the efficacy of netobimin and albendazole in ruminants with naturally acquired fascioliasis     

María Sol Arias  Jos Luis Surez  G.V. Hillyer  Ivn Francisco  Enrique Calvo  Rita Snchez-Andrade  Pablo Díaz  Rubn Francisco  Pablo Díez-Baos  Patrocinio Morrondo  Adolfo Paz-Silva 《Veterinary journal (London, England : 1997)》2009,182(1):73-78

The therapeutic efficacy of albendazole and netobimin in ruminants with naturally occurring fascioliasis was investigated using a recombinant-based ELISA. The variation in the IgG response against a 2.9-kDa recombinant protein (FhrAPS), termed efficacy index (EI) 1, and the egg-output changes, termed EI 2, were used to evaluate drug efficacy.The values of EI 1 ranged between 0% and 50% in sheep, and between 0% and 30% in cattle after treatment with albendazole and netobimin. Similar EI 2 values were observed in sheep receiving albendazole or netobimin, but the highest values were found in cattle treated with netobimin. The significant reduction in the IgG response to FhrAPS found in this study shows promise in terms of developing alternative methods for evaluating the efficacy of chemotherapy against Fasciola hepatica in grazing ruminants.  相似文献   

Determination of volatile organic compound patterns characteristic of five unifloral honey by solid-phase microextraction-gas chromatography-mass spectrometry coupled to chemometrics     

Baroni MV  Nores ML  Díaz Mdel P  Chiabrando GA  Fassano JP  Costa C  Wunderlin DA 《Journal of agricultural and food chemistry》2006,54(19):7235-7241

We report the evaluation of the floral origin of honey by analysis of its volatile organic compounds (VOCs) profile, joined with the use of combined pattern recognition techniques. Honey samples, from five floral origins, were analyzed by headspace solid-phase microextraction-gas chromatography-mass spectrometry, selecting 35 VOCs out of the entire profiles, which were analyzed by hierarchical cluster analysis (HCA), stepwise discriminant analysis (SDA), and K-nearest-neighbor (KNN). Both HCA and SDA were used as exploratory tools to select a group of VOCs representing similitude and differences among studied origins. Thus, six out of 35 VOCs were selected, verifying their discriminating power by KNN, which afforded 93% correct classification. Therefore, we drastically reduced the amount of compounds under consideration but kept a good differentiation between floral origins. Selected compounds were identified as octanal, benzeneacetaldehyde, 1-octanol, 2-methoxyphenol, nonanal, and 2-H-1-benzopyran-2-one. The analysis of VOC profiles, coupled to HCA, SDA, and KNN, provides a feasible alternative to evaluate the botanical source of honey.  相似文献   

Strengthening understanding and perceptions of mineral fertilizer use among smallholder farmers: evidence from collective trials in western Kenya     

Michael Misiko  Pablo Tittonell  Ken E. Giller  Paul Richards 《Agriculture and Human Values》2011,28(1):27-38

It is widely recognized that mineral fertilizers must play an important part in improving agricultural productivity in western Kenyan farming systems. This paper suggests that for this goal to be realized, farmers’ knowledge must be strengthened to improve their understanding of fertilizers and their use. We analyzed smallholder knowledge of fertilizers and nutrient management, and draw practical lessons from empirical collective fertilizer-response experiments. Data were gathered from the collective fertilizer-response trials, through focus group discussions, by participant observation, and via in-depth interviews representing 40 households. The collective trials showed that the application of nitrogen (N) or phosphorous (P) alone was insufficient to enhance yields in the study area. The response to P on the trial plots was mainly influenced by incidences of the parasitic Striga weed, by spatial variability or gradients in soil fertility of the experimental plots, and by interactions with N levels. These results inspired farmer to design and conduct experiments to compare crop performance with and without fertilizer, and between types of fertilizers, or responses on different soils. Participating farmers were able to differentiate types of fertilizer, and understood rates of application and the roles of respective fertilizers in nutrient supply. However, notions were broadly generated by unsteady yield responses when fertilizers were used across different fertility gradients, association with high cost (especially if recommended rates were to be applied), association of fertilizer use with hybrids and certain crops, historical factors, among other main aspects. We identified that strengthening fertilizer knowledge must be tailored within existing, albeit imperfect, systems of crop and animal husbandry. Farmers’ perceptions cannot be changed by promoting more fertilizer use alone, but may require a more basic approach that, for example, encourages farmer experimentation and practices to enhance soil properties such as carbon build-up in impoverished local soils.  相似文献