Results 41 to 50 of about 128,846 (186)

Crecimiento de corderos y productividad en ovejas Pelibuey mantenidas bajo condiciones tropicales de producción

Revista Mexicana de Ciencias Pecuarias, 2020
El objetivo fue evaluar los efectos de época y año de nacimiento, tipo de parto, sexo y número de parto sobre el crecimiento predestete y la productividad de las ovejas en ovinos de raza Pelibuey que producen bajo un sistema semi-extensivo en el trópico ...
Carolina Atenea García-Chávez, Carlos Luna-Palomera, Ulises Macías-Cruz, José Candelario Segura-Correa, Nadia Florencia Ojeda-Robertos, Jorge Alonso Peralta-Torres, Alfonso Juventino Chay-Canúl   +6 more
doaj   +1 more source

Lameness in Early Lactation Is Associated with Lower Productive and Reproductive Performance in a Herd of Supplemented Grazing Dairy Cows

Animals, 2021
The main aim of this study was to assess the associations between the timing of lameness clinical case occurrence in lactation with productive and reproductive performances in grazing Holstein cows.
Joaquín Chiozza Logroño, Ramiro Rearte, Santiago Gerardo Corva, Germán Ariel Domínguez, Rodolfo Luzbel de la Sota, Laura Vanina Madoz, Mauricio Javier Giuliodori   +6 more
doaj   +1 more source

Biotecnologías de reproducción animal con posibilidad de aplicación para optimizar el potencial reproductivo y productivo de los animales. Una revisión [PDF]

Animal reproductive biotechnology, represents an opportunity to optimize the potential reproductive and productive animals. The aim of this paper is a brief review of biotechnology in animal reproduction with future possibility of application to optimize
Córdova Izquierdo, Alejandro, Córdova Jiménez, Cristian A., Córdova Jiménez, Mary S., Ruiz Lang, Claudio Gustavo, Solalpa Campos, Víctor   +4 more
core   +2 more sources

First Non‐Invasive Monitoring of Fecal Steroids in Greater Caribbean Manatees (Trichechus manatus manatus)

Zoo Biology, EarlyView.
This study established the first fecal hormonal reference values (P4/E2) for the Greater Caribbean manatee. Using non‐invasive ELISA, the authors found no significant differences between mature and immature females, highlighting that long‐term monitoring and ultrasounds are essential to fully understand their complex reproductive cycles.
Vanessa Bermúdez‐Cardona, Roberto Sánchez‐Okrucky, José A. Sandoval‐Zárate, Nataly Castelblanco‐Martínez   +3 more
wiley   +1 more source

EVALUATION OF ACROSOMAL STATUS ON LLAMA SPERM [PDF]

SPERMOVA, 2015
No ...
Carretero MI, Fumuso FG, Miragaya M, Giuliano SM   +3 more
doaj   +1 more source

Advancing conservation breeding programs for marine invertebrates

Conservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam, Bart Shepherd, Kylie Lev, Rebecca Albright   +3 more
wiley   +1 more source

Population dynamics of potentially harmful haplotypes: a pedigree analysis

BMC Genomics
Background The identification of low-frequency haplotypes, never observed in homozygous state in a population, is considered informative on the presence of potentially harmful alleles (candidate alleles), putatively involved in inbreeding depression ...
Katherine D. Arias, Iván Fernández, Juan Pablo Gutiérrez, Isabel Álvarez, Félix Goyache   +4 more
doaj   +1 more source

El futuro de las razas autóctonas asturianas [PDF]

, 2009
En el proceso de recuperación de las razas autóctonas asturianas han jugado un papel determinante diversas personas y colectivos que con un enorme esfuerzo y gran cariño se preocuparon por mantener hasta nuestros días este patrimonio de valor ...
Baranda, Alberto
core  

Overlap of nonbreeding wandering albatrosses with fisheries and implications for colony‐specific population trajectories at South Georgia

Conservation Biology, EarlyView.
Abstract Bycatch in fisheries is one of the most serious threats to pelagic seabirds, causing major population declines. Mitigation measures can reduce bycatch substantially, but many fisheries fail to apply best practices, and seabird mortality remains high.
V. Warwick‐Evans, E. J. Pearmain, R. A. Phillips   +2 more
wiley   +1 more source

Effect of folicular fluid on the capacity of binding to the zona pellucida of epididimary sperm of alpaca (Vicugna pacos) [PDF]

SPERMOVA, 2017
Follicular fluid is the liquid fraction that surrounds the oocyte during its growth and maturation in the ovary. The components of the follicular fluid can favor the functionality of the sperm.
B. Zeze, B. Ruben, M. Valdivia
doaj   +1 more source