Results 81 to 90 of about 225,138 (210)

EFFECT OF THE SPERM MEMBRANE PROTECTOR ON THE FREEZABILITY OF GOAT SEMEN

open access: yesTropical and Subtropical Agroecosystems, 2022
Background: Prior to freezing goat semen, it is necessary to perform seminal washing by centrifugation to eliminate Phospholipase A, with the consequent loss of elements involved in maintaining sperm functions.
Josefa Martinez Duran   +5 more
doaj   +1 more source

Una panorámica de la ganadería industrial en el Estado español [PDF]

open access: yes, 2017
En el Estado español el número de cabezas de ganado no deja de crecer, pero cada vez hay menos personas dedicadas a la ganadería. La industria cárnica ha convertido la ganadería en una actividad industrial más: deslocalizada, desligada del entorno y ...
Ruibal, Blanca, Sánchez Carpio, David
core  

Spatial, Temporal, and Host‐Specificity Patterns of Three Genera of Blood Coccidian Parasites in Two Syntopic Mediterranean Lizards

open access: yesIntegrative Zoology, Volume 21, Issue 1, Page 69-78, January 2026.
Our results indicated that the three genera of blood parasites found in the two species of lizards studied can exhibit distinct epidemiological patterns across microgeographic and temporal scales. ABSTRACT We investigated the phenological variation of three genera of blood parasites of lizards (Schellackia, Karyolysus, and Lankesterella) using samples ...
Claudia Mediavilla   +5 more
wiley   +1 more source

Dieta de Pachyurus bonariensis (Steindachner, 1879) (Perciformes, Sciaenidae) en Mocoretá, río Uruguay, Argentina

open access: yesLatin American Journal of Aquatic Research, 2013
Se analizó la dieta de ejemplares de Pachyurus bonariensis capturados en el río Mocoretá, del río Uruguay en marzo de 2012. El régimen alimentario de este perciforme correspondió al tipo carnívoro bentófago y las presas dominantes, tanto en juveniles ...
Sabina Llamazares Vegh   +2 more
doaj  

Feed efficiency and the liver proteome of fattening lambs are modified by feed restriction during the suckling period

open access: yesAnimal, 2018
The present study was designed to describe the effects of early feed restriction of Merino lambs on feed efficiency during the fattening period by examining ruminal microbiota and fermentation parameters, gastrointestinal morphology, digestibility or ...
A. Santos   +7 more
doaj   +1 more source

From Colonial Natures to Entangled Ecologies: Making Due and Relational Geographies of Indigenous Resurgence in the Chaco

open access: yesAntipode, Volume 58, Issue 1, January 2026.
Abstract This paper offers an alternative reading of decolonial geographies by examining how people make due in the context of colonial natures. Drawing on collaborative ethnographic research, we illustrate how everyday acts of reclaiming ancestral lands serve as practices of resistance that foment Enxet and Sanapaná resurgence in Paraguay's Chaco.
Joel E. Correia, Clemente Dermott
wiley   +1 more source

Disponibilidad de selenio complementado con selenito de sodio y selenometionina en corderos

open access: yesRevista Científica, 2011
El objetivo de este trabajo fue evaluar el efecto del complemento de selenio (Se) sobre la función digestiva de corderos. Se utilizaron veinte corderos (26 Ó 2,4 kg) de 6 meses de edad, canulados en rumen y duodeno y alojados en jaulas metabólicas. Antes
Rosy Gabriela Cruz Monterrosa   +5 more
doaj  

Alternative treatments in the control of psoroptic mange in a flock of organic production sheep. [PDF]

open access: yes, 2009
The aim of the experiment was to verify the efficacy of the treatment of psoroptic mange in a flock of Churra sheep farmed under organic production conditions, using alternative methods. One group, C Control (N=9), was given no treatment, a second group,
de la Fuente, L.F.   +2 more
core  

Strong Variation in Land‐Use Change Impacts on Tropical Avian Phylogenetic Diversity Between Ecoregions Highlights the Need to Sample Large Spatial Scales

open access: yesGlobal Change Biology, Volume 32, Issue 1, January 2026.
Forest conversion for agriculture is a major cause of biodiversity loss in the tropics, but its impacts depend on how broadly they are measured. Using data from across Colombia, one of the most biodiverse countries in the world, we examined how deforestation for cattle farming affects the evolutionary history of bird species.
Giovanny Pérez   +7 more
wiley   +1 more source

HISTORIA Y CARACTERIZACIÓN TÉCNICA Y SOCIOECONÓMICA DE LA GANADERÍA BOVINA EN LA COSTA DE CHIAPAS, MÉXICO

open access: yesTropical and Subtropical Agroecosystems, 2020
Background: At the present, agricultural production systems need to produce more food, in the shortest possible time, and at the same time conserve natural resources.
F. Guevara-Hernández   +4 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy