Results 21 to 30 of about 225,138 (210)

Impacto de la agricultura y ganadería sobre el bosque tropical seco de Zirándaro, Guerrero: una evaluación con indicadores ecológicos

open access: yesBotan‪ical Sciences, 2019
Antecedentes: La agricultura y ganadería modifican la estructura y funcionamiento del bosque tropical seco. El impacto de estas actividades ha sido evaluado en regiones de Jalisco y Yucatán, en donde la agricultura de roza, tumba y quema, y la ganadería
Agustín Fuentes-Hernández   +5 more
doaj   +1 more source

Emergence, spread, and impact of high-pathogenicity avian influenza H5 in wild birds and mammals of South America and Antarctica. [PDF]

open access: yesConserv Biol
Abstract The currently circulating high‐pathogenicity avian influenza (HPAI) virus of the subtype H5 causes variable illness and death in wild and domestic birds and mammals, as well as in humans. This virus evolved from the Goose/Guangdong lineage of the HPAI H5 virus, which emerged in commercial poultry in China in 1996, spilled over into wild birds,
Kuiken T   +9 more
europepmc   +2 more sources

Augmentative releases of Diachasmimorpha longicaudata (Hymenoptera: Braconidae) for Ceratitis capitata (Diptera: Tephritidae) control in a fruit-growing region of Argentina [PDF]

open access: yes, 2016
Field-open augmentative releases were conducted to assess the efficacy of Diachasmimorpha longicaudata (Ashmead) for the regulation of Ceratitis capitata (Weidemann) infesting Ficus carica (L.) in a commercial area located in a fruit-producing irrigated ...
Bilbao, Mariana   +8 more
core   +1 more source

Efecto de las densidades de siembra y un fungicida en el rendimiento del frijol.

open access: yesAgronomía Mesoamericana, 2016
En cinco localidades de Costa Rica se evaluaron las variedades de frijol Guaymí y la línea MUS 181 en cinco densidades de siembra (140.000, 170.000, 200.000, 230.000 y 260.000 plantas por hectárea), con y sin aplicación de fungicida Benomy1 50 PM en ...
Bernardo Mora   +3 more
doaj   +1 more source

Local assessment of the immunohistochemical expression of Foxp3+ regulatory T lymphocytes in the different pathological forms associated with bovine paratuberculosis

open access: yesBMC Veterinary Research, 2022
Background Mycobacterium avium subsp. paratuberculosis infected animals show a variety of granulomatous lesions, from focal forms with well-demarcated granulomas restricted to the gut-associated lymphoid tissue (GALT), that are seen in the initial phases
David Zapico   +5 more
doaj   +1 more source

Effect of Dietary Supplementation with Lipids of Different Unsaturation Degree on Feed Efficiency and Milk Fatty Acid Profile in Dairy Sheep

open access: yesAnimals, 2021
Lipids of different unsaturation degree were added to dairy ewe diet to test the hypothesis that unsaturated oils would modulate milk fatty acid (FA) profile without impairing or even improving feed efficiency.
Gonzalo Hervás   +4 more
doaj   +1 more source

Eficiencia de cebos como atrayentes de moscas de la fruta en El Salvador.

open access: yesAgronomía Mesoamericana, 2016
Con el objetivo de determinar el cebo alimenticio más eficiente para aumentar la capacidad de captura de adultos de especies de Moscas de la Fruta y encontrar una alternativa a la proteína hidrolizada, se desarrolló el presente estudio en la Finca Maraví,
Muriel Delmi   +3 more
doaj   +1 more source

Escarabajos estercoleros asociados a sistemas de ganadería sostenible en diferentes regiones de Colombia

open access: yesBiota Colombiana, 2020
Investigamos la fauna de escarabajos estercoleros asociados a los sistemas de ganadería sostenible en diferentes regiones biogeográficas de Colombia, con el propósito de determinar la fauna local de estercoleros asociada al paisaje ganadero.
Julián Alexander Mendivil Nieto   +5 more
semanticscholar   +2 more sources

Arginina como aminoácido funcional en dietas para cerdos en iniciación

open access: yesEcosistemas y Recursos Agropecuarios, 2019
El objetivo de esta investigación fue determinar la concentración óptima de arginina (Arg) sintética que se debe adicionar a dietas para cerdos en iniciación para mejorar el comportamiento productivo.
José Luis Figueroa-Velasco   +5 more
doaj   +1 more source

Effects of slaughter age and gender on carcase characteristics and meat quality of native Mexican Turkey (M. g. gallopavo) reared under an extensive production system

open access: yesItalian Journal of Animal Science, 2022
The study aimed to investigate the effects of slaughter age and gender on carcase characteristics and meat quality of native Mexican turkeys raised under an extensive production system. Forty-five native turkeys (36 males and 9 females) were used.
Rodrigo Portillo-Salgado   +7 more
doaj   +1 more source

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