Results 41 to 50 of about 102,705 (231)

Molecular and Serological Detection of Coxiella burnetii in Small Ruminants in Northeastern Brazil

open access: yesVeterinary Medicine and Science, Volume 12, Issue 2, March 2026.
• Serology indicates that one‐third of the sheep and goats had previously been infected with Coxiella burnetii. • qPCR analysis revealed the ongoing presence of C. burnetii in all evaluated flocks, each with a previous history of reproductive disorders. • These results indicate the need for preventive measures and control of C.
Ana Karoline Sousa Mendes Simas   +7 more
wiley   +1 more source

Plantas exóticas introducidas en Mendoza a mediados del siglo XIX [PDF]

open access: yes, 2004
Fil: Melis, Francisco A.. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias BiológicasFil: Mendoza, Elizabeth. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias.
Melis, Francisco A., Mendoza, Elizabeth
core  

Genomic Prediction and Genome‐Wide Association Analysis of Heat Tolerance for Milk Yield in Buffaloes Using a Reaction Norm Model

open access: yesJournal of Animal Breeding and Genetics, Volume 143, Issue 2, Page 342-353, March 2026.
ABSTRACT The aim of this study was to evaluate the impact of incorporating genomic information on the estimation of genetic (co)variance components and the accuracy of breeding values for milk yield under varying thermal environments, and to identify SNPs associated with genes that play significant roles in heat tolerance.
Gabriela Stefani   +3 more
wiley   +1 more source

Achieved learning by students in a Physics course [PDF]

open access: yes, 2013
En este trabajo se describen los aprendizajes logrados por alumnos del curso de Física I tratando de vislumbrar desempeños vinculados con la construcción de ese perfil.
Cleva, Mario   +5 more
core   +2 more sources

Genetic Parameter Estimation for Pregnancy Loss and Their Association With Reproductive and Growth Traits in Brahman Cattle Under Extensive Tropical Conditions

open access: yesJournal of Animal Breeding and Genetics, Volume 143, Issue 2, Page 365-374, March 2026.
ABSTRACT This study estimated genetic parameters for pregnancy loss (PL) in Brahman cattle and evaluated the genetic correlation of PL with growth and reproductive traits using both the pedigree relationship matrix (A) and pedigree plus genomic relationship matrix (H). Data were collected from two herds in Bolivia, focusing on three age groups: heifers,
Daniel Cardona‐Cifuentes   +7 more
wiley   +1 more source

Poplars mother stocks : cuttings production at Chacras de Coria [PDF]

open access: yes, 1998
Las Salicáceas se multiplican principalmente por estacas que se pueden obtener de distintas fuentes. Entre ellas, plantas madres en huertos clonales dedicados específicamente a ese fin. En la región cuyana, durante los últimos años, se han incorporado
Arreghini, Rosa I.   +2 more
core  

Quantifying leaf herbivory: A guide to methodological trade‐offs and best practices

open access: yesEcology, Volume 107, Issue 2, February 2026.
Abstract Leaf herbivory is a ubiquitous ecological interaction that varies significantly in intensity across species, habitats, and biogeographic regions. Although quantification of leaf damage is crucial for understanding many ecological processes, the accuracy and precision of various damage estimation methods used by researchers, including visual ...
Tatiana Cornelissen   +31 more
wiley   +1 more source

Uso de tertulias dialógicas. Resultados en los exámenes de ciencia agraria

open access: yesProceedings INNODOCT/20. International Conference on Innovation, Documentation and Education, 2020
Actualmente en las asignaturas de origen agrario es totalmente necesario utilizar técnicas prácticas. Se ha comprobado a lo largo de los años que son necesarios enfoques que permitan disponer de más horas prácticas para aplicar, con más rapidez y fiabilidad, cualquier técnica agraria que estemos estudiando en las aulas, como también queda reflejado en ...
Isabel López Cortés   +4 more
openaire   +4 more sources

Potenciales plaguicidas amigables: sintesis de bajo impacto ambiental de heterociclos con subestructura de cromona [PDF]

open access: yes, 2015
El uso de plaguicidas sintéticos ha generado una serie de efectos adversos tanto sobre el ambiente como la salud humana. Por ello resulta necesario considerar diferentes tácticas de control de plagas, incluyendo el uso de compuestos selectivos y ...
Autino, Juan Carlos   +6 more
core   +2 more sources

Nutritional and Fermentative Impacts of Adding Dehydrated Cashew Pseudofruit to Elephant Grass Silage

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 1, February 2026.
The article evaluated the effect of different levels of dehydrated cashew pseudofruit (DCP; 0%, 10%, 20%, and 30% based on natural matter) on the ensiling of Cenchrus purpureus BRS Capiaçu (Elephant grass), focusing on fermentative characteristics, nutrient composition, losses, and aerobic stability.
Isadora Osório Maciel Aguiar Freitas   +10 more
wiley   +1 more source

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