Results 31 to 40 of about 1,490 (137)

Multiple paternity in domestic pigs under equally probable natural matings – a case study in the endangered Gochu Asturcelta pig breed [PDF]

Archives Animal Breeding, 2015
Here we provide evidence of multiple paternities in naturally mated sows under conditions ensuring that (a) sows had the same probability of being mated by any of the available boars and (b) no differences in hybrid vigour existed. Total DNA was obtained
J. Menéndez, I. Álvarez, I. Fernández, B. de la Roza, F. Goyache   +4 more
doaj   +1 more source

Pelvic breadth and juvenile locomotor energetics: Implications for the obstetrical dilemma hypothesis across human growth in past and present humans

The Anatomical Record, EarlyView.
Abstract The obstetrical dilemma hypothesis (ODH) proposes an evolutionary trade‐off between obstetric requirements and locomotor performance. However, whether external pelvic breadth measures influence walking energetics during human growth remains poorly understood.
Guillermo Zorrilla‐Revilla, Olalla Prado‐Nóvoa, Kevin P. Davy, José Miguel Carretero, Rebeca García‐González   +4 more
wiley   +1 more source

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

Improving ARTs: Microfluidics as a Tool for Sperm Selection

Andrology, EarlyView.
ABSTRACT Sperm selection is a critical step in assisted reproductive technology (ART), as sperm quality directly influences embryo quality. In vivo, the female reproductive tract imposes several physical and physiological barriers that favors only the most optimal spermatozoa reaching the fertilization site.
A. Pérez‐Gómez, A. Urriés, J. L. de Pablo, L. Serrano‐Ramón, S. Sanchez, R. Herrer, J. M. Morrell, C. Malo   +7 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

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

Pest‐preservation paradox among insects

Conservation Biology, EarlyView.
The pest‐preservation paradox is a non‐binary perspective that insects range from those that are harmful and requiring management on the one side, to those requiring conservation intervention on the opposite end of the spectrum. Importantly, the vast majority of insects occur somewhere in the center of the two extremes, and their position along the ...
Michael J. Samways, Charl Deacon, René Gaigher, James S. Pryke   +3 more
wiley   +1 more source

Effects of essential amino acids on phagostimulation and reproduction in adults of the Mediterranean fruit fly Efectos de amino ácidos esenciales en la fago‐estimulación y reproducción en adultos de la mosca de las frutas del Mediterráneo

Physiological Entomology, EarlyView.
The phagostimulation and reproductive effects of individual essential amino acids, without other nutrient except fructose, were investigated. Methionine, Arginine and Leucine display significantly higher phagostimulation strength than fructose. Arginine and Methionine showed a significant improvement in reproductive activity compared to other tested ...
David Nestel, Eleni Verykouki, Santiago J. Aguirre‐Ibáñez, Martha N. Guillen‐Rivera, Carlos Pascacio‐Villafán, Polychronis Rempoulakis, M. Teresa Vera   +6 more
wiley   +1 more source