Results 91 to 100 of about 219,315 (168)

Back pages of No. 51, 1992 [PDF]

open access: yes, 1992
Charles Darwin Foundation ...

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Organochlorine Compounds in Common Carp (Cyprinus carpio) from Patagonia Argentina [PDF]

open access: yes, 2010
The Negro River is the most important hydrological system of Patagonia, Argentina, drains a watershed of 140,000 km2. Its main economic activities are agriculture and industry, representing potential sources of organochlorine compounds (OCCs ...
Aizpún, Julia Elena   +5 more
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Back pages of No. 57, 1996 [PDF]

open access: yes, 1996
Charles Darwin Foundation for the Galapagos Islands ...

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Iniciativas de mitigación al cambio climático en sistemas de producción de carne bovina en países tropicales [PDF]

open access: yes, 2017
La producción ganadera se basa principalmente en el uso de sistemas extensivos de pastoreo, el cual es un sistema ineficiente que genera niveles bajos de rentabilidad y por ende altas emisiones por unidad de producto.
Arango, Jacobo   +7 more
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Overview of supply and demand for concentrated organic feed in the EU in 2002 and 2003. Summary of draft project report of EEC 2092/91 (Organic) Revision [PDF]

open access: yes, 2005
Annex IB of the EU Regulation on organic farming (2092/91) sets out that animals on organic farms should be fed with feed stuffs from organic farming systems.
Padel, Susanne
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Arqueología en áreas de montaña. Ganadería, movimientos pastoriles y cultura material [PDF]

open access: yes, 2011
González Álvarez, David & Rodríguez Hernández, Jesús (2011): Arqueología en áreas de montaña. Ganadería, movimientos pastoriles y cultura material. In: OrJIA (ed.), Actas de las II Jornadas de Jóvenes en Investigación Arqueológica (JIA 2009), tomo I ...
González Álvarez, David   +1 more
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Air scrubbing techniques for the reduction of gaseous emissions from livestock farms. Actual knowledge in the Netherlands and possibilities for implementation on Spanish farms. [PDF]

open access: yes, 2009
In The Netherlands, packed-bed biotrickling filters and acid scrubbers for removal of ammonia from exhaust air of animal houses are off-the-shelf techniques for ammonia removal.
Estellés, F.   +3 more
core   +1 more source

Addition of neem seeds (Azadirachta indica A. Juss) to fattening pig diets

open access: yesSouth African Journal of Animal Science
Neem products are biologically and pharmacologically active and could therefore serve as alternatives to antibiotics in pig feed. This study evaluated the effects of adding ground neem seeds (GNS) to the diets of fattening pigs on growth performance ...
M.Y. Vásquez-Parra   +7 more
doaj   +1 more source

Plaza de toros de Ávila [material gráfico]: se celebrará una gran corrida de toros el día 16 de octubre de 1925 [PDF]

open access: yes, 1925
Se lidiarán seis toros de la ganadería de D. Esteban HernándezPicadores : José Camero y Juan MolinaEspadas : Ignacio Sánchez Mejías, Fausto Barajas y Luis Fuentes BejaranoEn sedaCopia digital. Valladolid : Junta de Castilla y León.
Anonymous
core   +1 more source

Mirando para arriba y cavilando

open access: yes, 2011
La influencia del clima, y en especial de las precipitaciones, sobre el funcionamiento de la ganadería y la evolución de las explotaciones, es un tema que nos ocupa en forma permanente. Cada diálogo se inicia con la consabida frase: Irá a llover?
Bartaburu, Danilo   +2 more
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