Results 111 to 120 of about 1,385,080 (304)

Genetic and environmental sources of covariance among internal reproductive traits in the yellow dung fly

, 2011
Substantial inter- and intraspecific variation is found in reproductive traits, but the evolutionary implications of this variation remain unclear. One hypothesis is that natural selection favours female reproductive morphology that allows females to ...
W. U. BLANCKENHORN, Ward, Paul I, P. I. WARD, L. F. BUSSIÈRE, Postma, E, Bussière, Luc F, Bussiere, Luc, K. THÜLER, Postma, Erik, Thueler, K, E. POSTMA, Thüler, Karin, Blanckenhorn, Wolf U, Blanckenhorn, Wolf U; https://orcid.org/   +13 more
core   +1 more source

Genome-Wide Association Study of Reproductive Traits in Large White Pigs

Animals
(1) Background: Reproductive performance is crucial for the pork industry’s success. The Large White pig is central to this, yet the genetic factors influencing its reproductive traits are not well understood, highlighting the need for further research. (
Yifeng Hong, Cheng Tan, Xiaoyan He, Dan Wu, Yuxing Zhang, Changxu Song, Zhenfang Wu   +6 more
doaj   +1 more source

New insights into non-avian dinosaur reproduction and their evolutionary and ecological implications: linking fossil evidence to allometries of extant close relatives.

PLoS ONE, 2013
It has been hypothesized that a high reproductive output contributes to the unique gigantism in large dinosaur taxa. In order to infer more information on dinosaur reproduction, we established allometries between body mass and different reproductive ...
Jan Werner, Eva Maria Griebeler
doaj   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Event-time analysis of reproductive traits in dairy heifers

Journal of Dairy Science, 1998
Data on the reproductive traits of dairy heifers were analyzed using event-time techniques. Traits analyzed were age at first calving (n = 4631), days to first breeding, and days open (n = 1992) during the first lactation. A proportional hazard model was used that included fixed effects of herd-year, year-season, breed type, herd weight, and heifer ...
Vargas, B., van der Lende, T., Baaijen, M., van Arendonk, J.A.M.   +3 more
openaire   +5 more sources

Association of visual scores with reproductive traits in Nelore cattle using Bayesian Inference

Ciência Animal Brasileira, 2023
The use of morphological traits assessed using visual scores as indirect selection criteria in cattle has the advantage of evaluating young animals regarding potential productive and reproductive performance.
Byanka Bueno Soares, Ludmilla Costa Brunes, Fernando Sebastian Baldi, Adriana Santana do Carmo, Marcelo Gonçalves Narciso, Valentina Sanches Magnabosco, Roberto Daniel Sainz, Cláudio Ulhoa Magnabosco   +7 more
doaj  

Relationship Between Neurologic Symptoms and Signs and FMR1 Genotype in Premutation Carriers

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Fragile X‐associated Tremor/Ataxia Syndrome (FXTAS) is the most severe late‐onset condition caused by a premutation in the FMR1 gene, characterized by expanded CGG triplet repeats of 55–200. Clinical presentations of FXTAS, including gait ataxia, kinetic tremor, cognitive decline, and rare Parkinsonism, are linked to ...
Flora Tassone, Freddy Chafota, Miguel E. Rentería, Randi J. Hagerman, Ellery Santos, Anna Atkinson, Nicholas G. Martin, Elsdon Storey, Danuta Z. Loesch   +8 more
wiley   +1 more source

Reproductive characteristics of ethiopian indigenous sheep breeds in different production and management settings as inputs for selective breeding schemes: a review

Cogent Food & Agriculture
Reproductive traits are economically important and therefore need to be considered during designing sheep breeding and improvement programs, as it determines the efficiency of sheep production.
Mezgebu Getaneh, Mengistie Taye, Kefyalew Alemayehu, Aynalem Haile, Tesfaye Getachew   +4 more
doaj   +1 more source

White Matter Hyperintensity Burden and Short‐Interval Change Associated With Sleep Apnoea in the UK Biobank

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Purpose White matter hyperintensities (WMH) are a core neuroimaging marker of cerebral small vessel disease (CSVD). Sleep apnoea (SA) is a recognized vascular risk factor, but its associations with regional WMH burden, short‐interval WMH change and cognitive performance in population‐based cohorts remain incompletely defined. We
Peng Cheng, Diego Z. Carvalho, Shahid Karim, Anwar Chahal, Virend K. Somers   +4 more
wiley   +1 more source

Genetic and clinical studies of teat traits in the pig [PDF]

, 2013
A major goal of pig breeding is to produce sows with good longevity, which can raise many uniform litters with healthy, fast-growing piglets. The fitness of the sow, including the presence of sufficient number of functional teats, is one key to the ...
Chalkias, Helena
core   +1 more source