Results 101 to 110 of about 623,921 (260)

Social isolation does not inhibit sexual behaviour and testosterone secretion in sexually inexperienced photo-stimulated bucks in contact with seasonally anoestrous goats

Italian Journal of Animal Science, 2020
The aims of this study were to determine: (i) whether sexually inexperienced photo-stimulated males housed individually in pens display less intense sexual behaviour than sexually inexperienced photo-stimulated males housed in a group, and (ii) whether ...
Ilda G. Fernández, Jessica Loya-Carrera, Pablo Sifuentes-Lamónt, Gerardo Duarte, J. Alfredo Flores, Erika Grimaldo, Horacio Hernández, Raúl Ulloa-Arvizu, Jennifer D. Andrade-Esparza   +8 more
doaj   +1 more source

Superovulation, in vivo Embryo Recovery and Cryopreservation for Aoudad (Ammotragus Lervia) Females Using Osmotic Pumps and Vitrification : A Preliminary Experience and its Implications for Conservation [PDF]

, 2013
We thank all of the administrative, veterinary and animal keeper staff of the Leon Zoological Park and the embryologists (especially to Claudia Gonzalez) of the Instituto de Ciencias en Reproducción Humana, also to J.I Castillo-Quan for critical reading ...
de Barroso-Padilla, José Jesús, Fierro, Reyna, Gutiérrez-Gutiérrez, Antonio Martin, López-Saucedo, Janet, Pina Aguilar, Raul Eduardo, Ramón-Ugalde, Julio Porfirio   +5 more
core   +1 more source

Sistemas de análisis computadorizado de semen en la reproducción animal

, 2018
Computer-assisted semen analysis (CASA) is used in animal reproduction with the objective of evaluating sperm quality, quickly and reliably. Currently, artificial insemination centers must have reliable and objective systems that ensure the reliability ...
Anthony Valverde Abarca, M. M. Valverde
semanticscholar   +1 more source

Distinct Intra‐ and Interspecific Foraging Patterns of Stingless Bee Species as a Conservation Tool

Biotropica, Volume 57, Issue 5, September 2025.
In this study, we examined the foraging patterns of three rescued stingless bee species in the Bolivian Yungas using melissopalynology and plant–pollinator network analysis. We found distinct floral foraging patterns both within and among three stingless bee species in the Bolivian Yungas, suggesting niche partitioning at multiple levels.
Sissi Lozada‐Gobilard, Pamela Cristina Santana, Yamil Maidana‐Tuco, Elvis Otmar Gutierrez, Teresa Ortuño   +4 more
wiley   +1 more source

Infertilidad humana. Técnicas de reproducción asistida [PDF]

, 2017
La infertilidad es una condición que afecta actualmente al 15% de las parejas en edad reproductiva. Se conoce como la incapacidad de una pareja de llevar un embrazo a término tras un año manteniendo relaciones sexuales sin utilizar métodos ...
Gutiérrez Pérez, María del Rocío
core  

Low clonal propagation in Atlantic and Mediterranean populations of the red gorgonian Paramuricea clavata (Octocorallia) [PDF]

, 2017
Clonal propagation is a common feature of benthic marine organisms. In the present study, we investigated the contribution of clonal reproduction in the red gorgonian Paramuricea clavata. Mediterranean populations of P.
Andrea Peirano, Carpine, Chen, Chiara Lombardi, Harmelin, Henrique Queiroga, Joana Boavida, Joanna Pilczynska, Lasker, Mokhtar-Jamaï, Peirano, Perez, Silvia Cocito, Stoddart, Toonen, Williams   +15 more
core   +4 more sources

Conservation‐focused mapping of avian migratory routes using a pan‐European automated telemetry network

Conservation Biology, Volume 39, Issue 4, August 2025.
Abstract Accelerated biodiversity loss has destabilized functional links within and between ecosystems. Species that cross different ecosystems during migration between breeding and nonbreeding sites are particularly sensitive to global change because they are exposed to various, often ecosystem‐specific, threats.
Lucy Mitchell, Vera Brust, Thiemo Karwinkel, Susanne Åkesson, Dmitry Kishkinev, Gabriel Norevik, Tibor Szep, Anders Hedenström, Sander Lagerveld, Barbara Helm, Heiko Schmaljohann   +10 more
wiley   +1 more source

Admisiones y exclusiones en la práctica de la donacion de óvulos [PDF]

, 2014
Treballs Finals de Grau Antropologia Social i Cultural, Facultat de Geografia i Història, Universitat de Barcelona, Curs: 2013-2014, Tutor: Sílvia de ZordoEl auge de las técnicas de reproducción asistida ha generado una gran demanda de óvulos que desde ...
Rivera Gutiérrez, Priscila
core  

Neuronal Nuclei That Are Activated After an Offensive Encounter in Female Djungarian Hamster (Phodopus campbelli)

Aggressive Behavior, Volume 51, Issue 4, July 2025.
ABSTRACT Neural bases of aggression have been analysed mainly in rodent males, finding that the medial preoptic area (mPOA), bed nucleus of the stria terminalis (BNST) ventromedial hypothalamus (VMH), anterior hypothalamus (AHN), and medial amygdala (MeA) integrate the core aggression circuit.
Héctor Reyes‐Arenas, Luis Romero‐Morales, Brenda García‐Saucedo, Guadalupe Martínez‐Hernández, Carmen Álvarez‐Rodríguez, Agustín Carmona, Juana Luis   +6 more
wiley   +1 more source

Enfermería en las unidades de reproducción asistida [PDF]

, 2017
En los últimos años la demanda de las técnicas de reproducción humana asistida se ha visto incrementada como consecuencia de diversas causas entre las que encontramos el aumento de la esterilidad o los cambios socioeconómicos surgidos en las últimas ...
Aparicio Peña, Sofía
core