Títulos
Mostrando ítems 257-276 de 619
-
Exogenous human OKSM factors maintain pluripotency gene expression of bovine and porcine iPS-like cells obtained with STEMCCA delivery system
(BioMedCentral, 2018-07-27)OBJECTIVES: The use of induced pluripotent stem (iPS) cells as an alternative to embryonic stem cells to produce transgenic animals requires the development of a biotechnological platform for their generation. In this ... -
Exogenous progesterone during in vitro fertilization improves developmental competence of partially cumulus-denuded bovine oocytes
(Elsevier, 2023-11)The progesterone (P4) secreted by cumulus cells has gained attention for its role as a possible physiological inducer of sperm acrosome exocytosis. In mammals, it is generally accepted that fertilization rates of oocytes ... -
Expansión del riego: tipo de suelo, pendiente y calidad de agua en el sudeste de la provincia de Buenos Aires
(Facultad de Agronomía, Universidad Nacional de La Plata, 2022-07-14)El objetivo de este trabajo es caracterizar el área agrícola bajo riego complementario en el Sudeste Bonaerense (SB) en cuanto al incremento del área ocupada, tipo de suelo, pendiente y calidad de agua. Mediante un proceso ... -
Expression of apoptosis-related genes at different stages of BoHV-1 and 5 infection of bovine neural tissue
(Elsevier, 2022-11)Bovine alphaherpesviruses (BoHV) 1 and 5 share many genetic and structural characteristics; however, they differ in their ability to cause encephalitis. Previous research suggests that this difference might be caused by a ... -
Expression of internal reproductive barriers in a germplasm bank accession of the wild potato Solanum chacoense Bitter in three ex situ regeneration cycles
(Springer Nature, 2020-10-07)Wild potatoes (Solanum sp.) are important reservoirs of desirable genes for potato breeding. Most of them are diploid and obligate outcrossers, with both sexual and asexual reproduction. Samples of natural populations are ... -
Expression profile of genes as indicators of developmental competence and quality of in vitro fertilization and somatic cell nuclear transfer bovine embryos
(Plos One, 2014-09)Reproductive biotechnologies such as in vitro fertilization (IVF) and somatic cell nuclear transfer (SCNT) enable improved reproductive efficiency of animals. However, the birth rate of in vitro-derived embryos still lags ... -
Extracting DNA of nematodes communities from Argentine Pampas agricultural soils
(2015)We examined four strategies (Tris/EDTA, sodium dodecyl sulfate, Chelex 100 resin and cetyltrimethylammonium bromide -CTAB-) for extracting nucleic acid (DNA) from communities of nematodes. Nematodes were isolated from ... -
Fate of Neospora-seropositive animals: an opinion
(Sociedad Chilena de Parasitología, 2005-12)Neospora caninum is an abortive protozoon in cattle, which causes severe economic losses worldwide. Chronically infected cattle however develop immune responses protecting against further Neospora induced abortions. ... -
Feed bunk management effects steer performance and behaviour
(CSIRO, 2020-03-19)Animal performance and behaviour in fattening steers using ad libitum or restricted feed-bunk management were evaluated. High store-capacity self-feeders with weekly recharge were used in ad libitum management (ADLIB), ... -
Feedbase intervention in a cow-calf system in the flooding pampas of Argentina: 2. Estimation of the marginal value of additional feed
(Elsevier, 2017-11)Temporal variability in the availability of forage reduces the production and economic performance of livestock systems. The marginal value of feed (MVF, the possible gross economic benefit of additional feed on offer ... -
Fertilización combinada con N-P-S-Zn en avena, cebada y trigo
(Asociación Argentina de la Ciencia del Suelo, 2023-12)En Argentina, nitrógeno (N) y fósforo (P) y recientemente azufre (S) y cinc (Zn) son nutrientes reconocidos como limitantes de la producción de los cereales de invierno. Las decisiones de manejo de la fertilización en avena ... -
Field methods for making productivity classes for site-specific management of wheat
(Springer, 2022-02-02)Reducing the decision-making unit to classes within fields can improve yields, efficiency in the use of nutrients and profitability of crops. The objectives were to compare methods for class delimitation in wheat (Triticum ... -
Las fiestas como estrategia de valorización de recursos territoriales: experiencias en la Provincia de Buenos Aires, Argentina.
(Instituto de Estudios Avanzados, Universidad de Santiago de Chile, 2021-10-05)En las últimas décadas, ante el avance de procesos de estandarización, deslocalización en el sistema agroalimentario, emergieron iniciativas de valorización de productos típicos, relacionados con el patrimonio cultural. ... -
First case report of Toxoplasma gondii-induced abortions and stillbirths in sheep in Argentina
(2018-05)The aim of this study is to report an episode of reproductive losses due to toxoplasmosis in a sheep flock in Argentina. A total of 15 abortions and 9 stillbirths were recorded in a flock of 190 Texel ewes. The affected ... -
First evidence of glyphosate and aminomethylphosphonic acid (AMPA) in the respirable dust (PM10) emitted from unpaved rural roads of Argentina
(Elsevier, 2021-02-04)The aim of this work was to compare the concentration of glyphosate and AMPA in the PM10 and the actual PM10 emission from agricultural soils and unpaved roads, located inside and outside farm fields. To determine the ... -
First insights into de migration pattern of an upland goose (Chloephaga picta) based on satellite tracking
(Sociedad de Ornitología Neotropical, 2015)Detailed knowledge of the migratory strategies is important to understand the ecology and evolution of migration and the conservation of migratory birds The Argentinean federal government declared sheldgeese (Chloephaga ... -
First report of a perforated abomasal ulcer in a beef heifer calf in Argentina
(The Chamber of Veterinary Surgeons, Istanbul, 2020-12-13)Abomasal ulcers are local processes of autodigestion of the mucosa caused by the disturbance of the balance between protective and aggressive mechanisms at the abomasal mucosa. Several causes have been suggested and a ... -
First report of seroprevalence of Toxoplasma gondii and Neospora caninum in dairy sheep from Humid Pampa, Argentina
(Springer, 2013-10)The aim of this study was to describe the occurrence of antibodies to Toxoplasma gondii and Neospora caninum in dairy sheep from the Humid Pampa region, Argentina. Blood samples from 704 dairy sheep belonging to six flocks ... -
Flood mitigation ecosystem service in landscapes of Argentina's Pampas: identifying winning and losing farmers
(Elsevier, 2019-07-15)Ecosystem services are only able to make a contribution to human well-being if they reach the users or beneficiaries. Therefore, it is important to differentiate the potential contributions of ecosystems (ecosystem service ...