Comparison between vegetation indices for detecting spatial and temporal variabilities in soybean crop using canopy sensors     

Morlin Carneiro  Franciele  Angeli Furlani  Carlos Eduardo  Zerbato  Cristiano  Candida de Menezes  Patricia  da Silva Gírio  Lucas Augusto  Freire de Oliveira  Mailson 《Precision Agriculture》2020,21(5):979-1007

Precision Agriculture - Crop monitoring through remote sensing techniques enable greater knowledge of average variability in crop growth. Canopy sensors help provide information on the variability...  相似文献   

Comparative pharmacokinetics and pharmacokinetic/pharmacodynamic analysis by nonlinear mixed‐effects modeling of cefquinome in nonpregnant,pregnant, and lactating goats after intravenous and intramuscular administration     

Nicols Javier Litterio  Augusto Matías Lorenzutti  María del Pilar Zarazaga  Martín Alejandro Himelfarb  Manuel Ignacio San Andrs‐Larrea  Juan Manuel Serrano‐Rodríguez 《Journal of veterinary pharmacology and therapeutics》2021,44(1):68-78

Cefquinome is a fourth‐generation cephalosporin that is used empirically in goats. Different physiologic factors like pregnancy or lactation could determine the pharmacokinetic behavior of drugs in the organism. The objectives of this study are to (a) compare the pharmacokinetics of cefquinome after intravenous and intramuscular administration in adult nonpregnant (n = 6), pregnant (n = 6), and lactating goats (n = 6), at a dose of 2 mg/kg, with rich sampling by nonlinear mixed‐effects modeling, (b) conduct a pharmacokinetic/pharmacodynamic analysis to evaluate the efficacy of the recommended posology in goats with different physiological states, and (c) determine the optimal posology that achieve a PTA value ≥ 90%, taking into account a T > MIC ≥ 60% of a MIC value ≤ 0.25 µg/ml, in the different subpopulations of goats for both routes. Gestation significantly increased Ka and V1, while reduced F0, Cl, and Q. On the other hand, lactation significantly increased V1 and reduced Tk0. Cefquinome concentrations achieved in placental cotyledon, amniotic fluid, and fetal serum indicate a minimal penetration across the placental barrier. Moreover, milk penetration of cefquinome was minimal. The total body clearance of cefquinome for goats was 0.29 L kg^?1 hr^?1, that is apparently higher than the reported for cows (0.13 L kg^?1 hr^?1) and pigs (0.16 L kg^?1 hr^?1). So, the optimal dose regimen for cefquinome after intravenous and intramuscular administration required higher dose and frequency of administration compared with recommendations for cows or pigs. Therefore, 2 mg kg^?1 8 hr^?1 and 5 mg kg^?1 12 hr^?1 could be used for IV and IM routes, respectively, for the treatment of respiratory infections caused by P. multocida and M. haemolytica, but only 5 mg kg^?1 12 hr^?1 by both routes should be recommended for Escherichia coli infections.  相似文献   

Supplementation with Ca salts of soybean oil interacts with concentrate level in grazing dairy cows: milk production and milk composition     

Fernanda Lopes Macedo  Jonas de Souza  Fernanda Batistel  Lucas Jado Chagas  Flávio Augusto Portela Santos 《Tropical animal health and production》2016,48(8):1585-1591

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Spontaneous poisoning by Hovenia dulcis in dairy cattle in Southwest Parana,Brazil     

Fabricio Bernardi  Marina Gabriela Possa  Mayane Faccin  Leonardo Gruchouskei  Carlos Eduardo Fonseca-Alves  Fernando Pípole  Luciana Retz de Carvalho  Fabiana Elias 《Tropical animal health and production》2016,48(1):211-214

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Intake,digestibility and performance of lambs fed diets containing peach palm meal     

Alana Batista dos Santos  Mara Lúcia Albuquerque Pereira  Herymá Giovane de Oliveira Silva  Gleidson Giordano Pinto de Carvalho  Taiala Cristina de Jesus Pereira  Leandro Sampaio Oliveira Ribeiro  José Augusto Gomes Azevêdo  Maria das Graças Conceição Parada Costa Silva  Larisse Borges Sousa  Leandro Borges Sousa  Daiane de Oliveira Alencar 《Tropical animal health and production》2016,48(3):509-515

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In Vitro Assessment of the Equine Hoof Wall Strains in Flat Weight Bearing and After Heel Elevation     

Maria Clia Ramos Bellenzani PhD  Associate Professor  Júlia Maria D'andrea Greve PhD  Professor-Physiatrics  Csar Augusto Martins Pereira 《Journal of Equine Veterinary Science》2007,27(11):475-480

Horseshoeing is a common practice, but effects on the hoof wall are poorly understood. Strain gauges were used to document and compare hoof behavior in vitro during flat weight bearing and after artificial heel elevation. Ten front limbs of Thoroughbred race horses, shod with conventional flat shoes, were used. Eight strain gauges were symmetrically distributed around the toe, quarters, and heels. Each limb was mounted to a testing machine (Kratos K5002; Kratos Dynamômetros, Ltda., Cotia-SP-Brazil) and subjected to a load equivalent to 30% of the donor's body weight. Strains (μ) were acquired by means of a computerized system and the results compared using Friedman and Wilcoxon statistical tests. There was greater strain variation when the heels were elevated. Compression predominated during flat weight bearing, with a tendency to horizontal traction after heel elevation. The changes in strain caused by heel elevation were not always symmetrical. Elevation of the heels tensed the toe and the medial quarter horizontally, increased load at the posterior portion of the hoof capsule, and hindered its expansion.  相似文献   

Risk factors associated with sero-positivity to Toxoplasma gondii in captive neotropical felids from Brazil     

Ramos Silva JC  Marvulo MF  Dias RA  Ferreira F  Amaku M  Adania CH  Ferreira Neto JS 《Preventive veterinary medicine》2007,78(3-4):286-295

From September 1995 to February 2001, blood samples were collected from 865 neotropical felids belonging to 8 different species. These animals were housed in 86 institutions located in 78 cities of 20 Brazilian states. Our goal was to identify the risk factors associated with sero-positivity to Toxoplasma gondii in captive neotropical felids from Brazil. All serum samples were tested by the modified agglutination test (MAT), using formalin-fixed whole tachyzoites and mercaptoethanol. For each animal an individual questionnaire was filled with questions about tattoo number, felid species, age, sex, origin, number of animals in the group, introduction of new animals in the group, time in the institution, eating meat previously frozen for a period <7 days in the last 6 months, eating meat of run-over or euthanized animals in the last 6 months, predation of rodents or birds in the last 6 months and presence of domestic cats near the enclosures in the last 6 months. The total sero-prevalence was 55% (95% CI: 52%, 57%). We estimated a prevalence of 46% (95% CI: 40%, 54%) for jaguarundi (Puma yagouaroundi); 58% (95% CI: 53%, 63%) for ocelot (Leopardus pardalis); 50% (95% CI: 45%, 56%) for oncilla (L. tigrinus); 54% (95% CI: 46%, 62%) for margay (L. wiedii); 12% (95% CI: 4%, 31%) for Pampas-cat (L. colocolo); 83% (95% CI: 65%, 93%) for Geoffroy's-cat (L. geoffroyi); 64% (95% CI: 50%, 68%) for jaguar (Panthera onca) and 48% (95% CI: 42%, 54%) for puma (Puma concolor). Multiple logistic regression was used to evaluate the association between the variables in the questionnaire and sero-positivity to T. gondii. We concluded that the independent risk factors for toxoplasmosis were: age >3 years (OR = 4.75 [2.75; 8.2]), eating meat previously frozen for a period <7 days (OR = 2.23 [1.24; 4.01]), and consumption of animals that were run-over or euthanized (OR = 1.64; [1.14; 2.37]).  相似文献   

Synthesis and in-vitro antifungal activity of 6-trifluoromethyipyrazolo[3,4-6d]pyrimidin-4(5H)-thiones     

Chiara B. Vicentini  Tiziana Poli  Augusto C. Veronese  Vincenzo Brandolini  Maurizio Manfrini  Mario Guarneri  Paolo Giori 《Pest management science》1989,27(1):77-83

Twelve 6-trifluoromethylpyrazolo[3,4-d]pyrimidin-4(5H)-thiones were prepared by the reaction between 4-thiocarbamoyl-5-aminopyrazoles and trifluoroacetic anhydride. They were tested in vitro for antifungal activity against a series of phytopathogenic fungi of different taxonomic classes. The EC50 and MIC values of four compounds were comparable or inferior to those of reference commercial fungicides in controlling Sclerotinia minor, Corticium solani and Phytium ultimum.  相似文献   

Measurement of bovine plasma testosterone by radioimmunoassay (RIA) and by a rapid competitive protein binding (CPB) assay   总被引：1，自引：0，他引：1  

M Shemesh  W Hansel 《Journal of animal science》1974,39(4):720-724

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CYSTIC CORPORA LUTEA AND NORMAL AND CYSTIC GRAAFIAN FOLLICLES IN THE COW   总被引：1，自引：0，他引：1  

L. E. Donaldson  M.V.Sc.  Ph.D. W. Hansel  M.S.  Ph.D.† 《Australian veterinary journal》1968,44(7):304-308

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