Symmetric dimethylarginine concentrations in dogs with International Renal Interest Society stage 4 chronic kidney disease undergoing intermittent hemodialysis     

Andr Nanny Vieira Le Sueur  Silvano Salgueiro Geraldes  Alessandra Melchert  Regina Kiomi Takahira  Michael Coyne  Rachel Murphy  Donald Szlosek  Priscylla Tatiana Chalfun Guimares‐Okamoto 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2019,33(6):2635-2643

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Physicochemical parameters,fatty acid profile,and sensory attributes of meat from lambs fed with cassava dregs in replacement of corn     

Cardoso  Daniel Barros  Véras  Robson Magno Liberal  de Carvalho  Francisco Fernando Ramos  Magalhães  André Luiz Rodrigues  de Vasconcelos  Gustavo Araújo  Maciel  Maria Inês Sucupira  Madruga  Marta Suely  Urbano  Stela Antas  de Lima Silva  Janaina 《Tropical animal health and production》2019,51(6):1515-1521

Tropical Animal Health and Production - The objective of this study was to evaluate the effect of the replacement of corn by cassava dregs (0, 33, 66, and 100%) in the diet of lamb on...  相似文献   

Comparison of the intravenous and intravaginal route of oxytocin administration for cervical dilation protocol and non‐surgical embryo recovery in oestrous‐induced Santa Inês ewes     

Lucia Prellwitz  Fabiana Nunes Zambrini  Jos Domingos Guimares  Marco Antonio Paula de Sousa  Maria Emília Franco Oliveira  Alexandre Rosetto Garcia  Srgio Novita Esteves  Pawel Mieczyslaw Bartlewski  Joanna Maria Gonalves Souza‐Fabjan  Jeferson Ferreira Fonseca 《Reproduction in domestic animals》2019,54(9):1230-1235

This study compared the effects of intravaginal and intravenous routes of oxytocin (OT) administration in 46 oestrous‐induced Santa Inês ewes (6‐day treatment with progestin‐releasing intravaginal sponges and a single injection of 200 IU of eCG at the time of sponge removal) that underwent transcervical embryo recovery 6–7 days after oestrous onset and mating. All ewes received 37.5 μg of d‐cloprostenol via latero‐vulvar route, and 1 mg of oestradiol benzoate i.m. 16 hr before and 50 IU of OT 20 min before non‐surgical embryo recovery (NSER), with OT being administered intravenously (n = 21) or intravaginally (n = 21). An overall oestrous response was 95.6% (44/46), and adequate cervical retraction could be accomplished in 78.6% (33/42) of ewes. The percentage of successful NSER procedures was 57% (24/42) or 72.7% (24/33) of animals with sufficient cervical retraction. The duration of NSER procedure averaged 28 min (range: 17–40 min) and ~96% of flushing fluid could be recovered (range: 85%–100%). Out of 18 ewes that could not undergo NSER, 12 (66.6%) presented various anatomical barriers, whilst the other 33.4% did not present these barriers and still could not be traversed. Excluding the ewes with those anatomical features, the overall success rate of NSER was 80% (24/30). The route of OT administration had no effect on NSER efficiency or the ease with which transcervical embryo flushing was performed. Both routes of OT administration can be used for cervical dilation protocol. Discarding ewes with anatomical features precluding cervical penetration is highly recommended to increase the efficacy of NSER in sheep.  相似文献   

Risk factors of brucellosis (re-)incidence in sheep and goat flocks in an endemic area of Portugal     

Castelo  C.  Simões  J. 《Tropical animal health and production》2019,51(2):487-490

Tropical Animal Health and Production - This study aimed to determinate the main risk factors of brucellosis recurrence or highest animal incidence in flocks, under pastoralism, in an endemic area...  相似文献   

Seasonal and temporal changes in species use of the landscape: how do they impact the inferences from multi-scale habitat modeling?     

María?C.?Mateo-SánchezEmail author  Aitor?Gastón  Carlos?Ciudad  Juan?I.?García-Vi?as  Jorge?Cuevas  César?López-Leiva  Alfredo?Fernández-Landa  Nur?Algeet-Abarquero  Miguel?Marchamalo  Marie-Josée?Fortin  Santiago?Saura 《Landscape Ecology》2016,31(6):1261-1276

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Protective activity against oocyst shedding in cats vaccinated with crude rhoptry proteins of the Toxoplasma gondii by the intranasal route     

Garcia JL  Navarro IT  Biazzono L  Freire RL  da Silva Guimarães Junior J  Cryssafidis AL  Bugni FM  da Cunha IA  Hamada FN  Dias RC 《Veterinary parasitology》2007,145(3-4):197-206

This study evaluated a vaccine made from crude rhoptry proteins of Toxoplasma gondii with Quil-A, which was administered to cats by the intranasal route. Eleven short-hair domestic cats were divided into four groups: G1 (n=3) received three doses (200 microg/dose) of the rhoptry vaccine with Quil-A (20 microg); G2 (n=3) received PBS with Quil-A (20 microg); G3 (n=3) and G4 (n=2) received only PBS. Treatments were administered at days 0, 21, and 42 by the intranasal route. Challenge was done to G1, G2, and G3 animals with 600 cysts of the VEG strain on day 51 (challenge day); G4 animals were unchallenged. The anti-T. gondii IgG and IgA antibody levels from sera were measured by indirect enzyme-linked immunosorbent assay (ELISA). At challenge, two animals from G1 revealed antibody levels for both IgG and IgA; oocysts were not detected in feces of these two cats. There were no differences in hematological values between groups throughout the experiment (p>0.10). Preventable fractions were 67% in G1 and 0% in G2 and G3. Comparatively, G1 animals shed 89.3% and 90.8% less oocysts than G3 and G4, respectively. Two out of three cats were protected against T. gondii oocyst shedding when the rhoptry vaccine was administered by the intranasal route. This is the first study using crude rhoptry proteins as vaccine by the intranasal route in cats to evaluate protection against oocysts shedding.  相似文献   

Effects of Recent Human Colonization on the Presence of Mercury in Amazonian Ecosystems     

Roulet  M.  Lucotte  M.  Farella  N.  Serique  G.  Coelho  H.  Sousa Passos  C. J.  de Jesus da Silva  E.  Scavone de Andrade  P.  Mergler  D.  Guimarães  J.-R. D.  Amorim  M. 《Water, air, and soil pollution》1999,112(3-4):297-313

Three Hg sources were characterised and mass balance calculations were used to determine their relative contributions to the contamination of the Amazonian environment. About an order of magnitude more Hg is emitted to the atmosphere by goldmining activity than by the burning of forest biomass. However, anthropogenic atmospheric Hg cannot account for the high Hg burdens found in terrestrial ecosystems: deposition of Hg from goldmining sources is estimated to account for less than 3% of the Hg present in the surface horizons of soils. We propose that erosion of deforested soils following human colonization constitutes a major disturbance of the natural Hg cycle. Deforestation thus increases soil Hg mobilisation by runoff, which may explain the increase of Hg burdens in Amazonian aquatic ecosystems in newly colonized watersheds.  相似文献   

Morphology,accumulation and survival of Desmanthus under different planting densities and harvest heights     

Aurielle S. Medeiros  Mércia V. F. dos Santos  Márcio V. da Cunha  Alexandre C. L. de Mello  Djalma E. Simões Neto  Osniel F. de Oliveira  James P. Muir  Jose C. B. Dubeux Jr  André E. dos Santos 《Grass and Forage Science》2023,78(1):161-172

The use of legumes is an important strategy for animal feeding, especially during the dry season. The aim was to evaluate the effect of planting densities (40,000; 15,625 and 10,000 plants ha⁻¹) and harvest heights (20 and 40 cm) on the morphology, accumulation and survival of Desmanthus (Desmanthus pernambucanus [L.] Thellung), cultivated in subhumid tropical region, as well as to estimate the repeatability of the evaluated characteristics and the optimal number of measurements. The treatments were randomized in blocks, with subdivided plots and four replicates. Planting densities were evaluated in the plots and the harvest heights in the subplots. Eight harvests were carried out with an interval of 84 days. Morphological and productive characteristics and survival were evaluated. Cultivation under density of 40,000 plants ha⁻¹ produced taller plants, with higher leaf area index (LAI = 0.98), light interception (LI = 49%), individual accumulations (18.8 g DM plant⁻¹) and by area (576.5 kg DM ha⁻¹ harvest⁻¹), although resulting in reduced plant stand (66%). Harvest heights do not affect accumulation and survival. It is possible to reduce the number of measurements for stem diameter, number of leaflets per leaf (R² = 95%), plant height, canopy diameter, LAI, LI, leaf length and width, number of leaves per branch, branch diameter and LBR (R² = 90%), optimizing resources for future research. Desmanthus has potential for use in protein banks, being harvested in the rainy season, conserved and supplied in addition to animals, but plant growth is minimal during the dry season under rainfed conditions.  相似文献   

Cylindrospermopsin effects on cell viability and redox milieu of Neotropical fish <Emphasis Type="Italic">Hoplias malabaricus</Emphasis> hepatocytes     

R. C. Silva  S. Liebel  H. H. P. de Oliveira  W. A. Ramsdorf  J. R. E. Garcia  S. M. F. O. Azevedo  V. F. Magalhães  C. A. Oliveira Ribeiro  F. Filipak Neto 《Fish physiology and biochemistry》2017,43(5):1237-1244

Cylindrospermopsin (CYN) is a cyanotoxin that is cytotoxic to a wide variety of cells, particularly to the hepatocytes. In this study, the toxic effects of purified CYN were investigated in primary cultured hepatocytes of Neotropical fish Hoplias malabaricus. After isolation, attachment, and recovery for 72 h, the cells were exposed for 72 h to 0, 0.1, 1.0, 10, and 100 μg l^?1 of CYN. Then, cell viability and a set of oxidative stress biomarker responses were determined. Catalase, superoxide dismutase, glucose-6-phosphate dehydrogenase, and glutathione S-transferase activities were not affected by exposure to CYN. Concentration-dependent decrease of glutathione reductase activity occurred for most CYN-exposed groups, whereas non-protein thiol content increased only for the highest CYN concentration. Lipid peroxidation, protein carbonylation, and DNA damage levels were not altered, but reactive oxygen species levels increased in the cells exposed to the highest concentration of CYN. Cell viability decreased in all the groups exposed to CYN. Thus, CYN may cause a slight change in redox balance, but it is not the main cause of cell death in H. malabaricus hepatocytes.  相似文献   

Broodstock conditioning of the Portuguese oyster (Crassostrea angulata,Lamarck, 1819): influence of different diets          下载免费PDF全文

Catarina Anjos  Teresa Baptista  Sandra Joaquim  Susana Mendes  Ana Margarete Matias  Paula Moura  Tiago Simões  Domitília Matias 《Aquaculture Research》2017,48(7):3859-3878

The Portuguese oyster Crassostrea angulata shows great potential in oyster farming. The conservation of pure populations of this species is important for production diversification and biodiversity preservation. In this way, the zootechnological development for seed hatchery production is extremely important. Broodstock conditioning is a key step in the process of rearing bivalves in a hatchery. Many factors regulate the reproductive cycle, being food one of the most important ones. To evaluate the effect of different diets on C. angulata reproductive performance, broodstock were conditioned with different food regimes formulated fundamentally by flagellates (Diet 1 – Pavlova lutheri and Isochrysis galbana clone T‐ISO; Diet 2 – P. lutheri, T‐ISO and Skeletonema costatum) and constituted fundamentally by diatoms (Diet 3 – S. costatum and Chaetoceros calcitrans; Diet 4 – P. lutheri, S. costatum and C. calcitrans). During conditioning, samples of oysters were collected to evaluate condition index, gonadal development and biochemical composition. At the end of the conditioning period, oysters were induced to spawn to evaluate reproductive output (fecundity, fertilization rate and D‐larvae development). The diets had an impact on the gametogenesis process, energy storage and reproductive output performance, being the best results those obtained in broodstock fed with the diatoms‐predominant diets. However, those fed with diets majority flagellates had an unsuccessful performance. Holistic approaches incorporating all results in this study reveal and reinforce the idea that the diatom species used presented the nutritional requirements to C. angulata broodstock, being essential in the conditioning phase.  相似文献