Results 21 to 30 of about 440,897 (265)

Maternal Effects in Molecular Evolution [PDF]

open access: yesPhysical Review Letters, 2002
We introduce a model of molecular evolution in which the fitness of an individual depends both on its own and on the parent's genotype. The model can be solved by means of a nonlinear mapping onto the standard quasispecies model. The dependency on the parental genotypes cancels from the mean fitness, but not from the individual sequence concentrations.
openaire   +3 more sources

Effects of l-carnitine in the distillers dried grains with solubles diet of sows on reproductive performance and antioxidant status of sows and their offspring

open access: yesAnimal, 2019
Distillers dried grains with solubles (DDGS) are highly susceptible to lipid oxidation because DDGS contain about 10% crude fat, which is largely composed of polyunsaturated fatty acids. l-carnitine serves an important function in fatty acids β-oxidation,
B. Wei   +6 more
doaj   +1 more source

The Effects of Weather on Avian Growth and Implications for Adaptation to Climate Change

open access: yesFrontiers in Ecology and Evolution, 2021
Climate change is forecasted to generate a range of evolutionary changes and plastic responses. One important aspect of avian responses to climate change is how weather conditions may change nestling growth and development. Early life growth is sensitive
Drew Sauve   +2 more
doaj   +1 more source

Genetic parameter estimates for birth and weaning weights in Raeini goats

open access: yesCzech Journal of Animal Science, 2010
The aim of the present study was to estimate variance components and genetic parameters for birth and weaning weights in Raeini goats. The data were collected from the Breeding Centre of Raeini (BCR) cashmere goats in Kerman province of Iran from 1986 to
M. Gholizadeh   +3 more
doaj   +1 more source

Skeletal Muscle Development in Postnatal Beef Cattle Resulting from Maternal Protein Restriction during Mid-Gestation

open access: yesAnimals, 2021
We aimed to investigate the effects of maternal protein restriction during mid-gestation on the skeletal muscle composition of the offspring. In the restriction treatment (RES, n = 9), cows were fed a basal diet, while in the control (CON, n = 9) group ...
Thais Correia Costa   +7 more
doaj   +1 more source

Yolk vitamin E prevents oxidative damage in gull hatchlings [PDF]

open access: yesRoyal Society Open Science, 2017
Oxidative stress experienced during early development can negatively affect diverse life-history traits, and organisms have evolved complex defence systems against its detrimental effects.
Marco Parolini   +9 more
doaj   +1 more source

Invasive Egg Predators and Food Availability Interactively Affect Maternal Investment in Egg Chemical Defense

open access: yesFrontiers in Ecology and Evolution, 2018
Invasive species commonly predate the offspring of native species and eggs are the life stage most vulnerable to this predation. In many species with no maternal care, females can alter the phenotype of eggs to protect them, for instance through chemical
Sarah C. Paul   +5 more
doaj   +1 more source

Effects of maternal hydration status on the osmolality of maternal milk

open access: yesNutrición Hospitalaria, 2016
It has been demonstrated that human milk osmolality (Mosm) is regulated within an established range, typically 290 to 300 mOsm/kg, and appears to be resistant to effects of maternal dehydration, as refl ected by high urinary osmolality (Uosm).To determine the degree of association between Mosm and Uosm at a common point in time, as well as the ...
Soto-Méndez, María José   +5 more
openaire   +4 more sources

Altered natal dispersal at the range periphery: The role of behavior, resources, and maternal condition

open access: yesEcology and Evolution, 2017
Natal dispersal outcomes are an interplay between environmental conditions and individual phenotypes. Peripheral, isolated populations may experience altered environmental conditions and natal dispersal patterns that differ from populations in contiguous
Melissa J. Merrick, John L. Koprowski
doaj   +1 more source

Breeding schemes in reindeer husbandry

open access: yesRangifer, 2003
The objective of the paper was to investigate annual genetic gain from selection (G), and the influence of selection on the inbreeding effective population size (Ne), for different possible breeding schemes within a reindeer herding district.
Lars Rönnegård   +2 more
doaj   +1 more source

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