Results 11 to 20 of about 2,104,193 (346)

Reproductive traits in Ethiopian male goats [PDF]

open access: yes, 2007
This thesis characterizes reproductive traits of Ethiopian male goats raised under extensive husbandry and subjected to differential nutritional management.
Mekasha Gebre, Yoseph
core   +2 more sources

Estimates of genetic and phenotypic parameters for reproductive traits in Iranian native Kordi sheep

open access: yesActa Scientiarum: Animal Sciences, 2017
The data set for estimation of genetic and phenotypic parameters of reproductive traits in Kordi sheep were collected from 1996 to 2013. The reproductive traits included age at first lambing (AFL), number of lambs born (NLB/EL) and weaned (NLW/EL) per ...
Davoud Ali Saghi, Ali Reza Shahdadi
doaj   +2 more sources

Complex social behaviour derived from maternal reproductive traits [PDF]

open access: yesNature, 2006
A fundamental goal of sociobiology is to explain how complex social behaviour evolves, especially in social insects, the exemplars of social living. Although still the subject of much controversy, recent theoretical explanations have focused on the evolutionary origins of worker behaviour (assistance from daughters that remain in the nest and help ...
Gro V, Amdam   +3 more
openaire   +4 more sources

Correlation of Morphology and Metabolism of Reproductive Traits in the Genus Phrynocephalus Around the Qinghai‐Tibetan Plateau [PDF]

open access: yesEcology and Evolution
The trade‐off between offspring size and number is a crucial concept in life‐history theory, offering key insights into animal reproductive strategies.
Xiaqiu Tao   +3 more
doaj   +2 more sources

Reproductive traits and economic aspects on dairy cattle. [PDF]

open access: yesAnim Reprod
Abstract This study aimed to characterize the reproductive parameters and economic indicators of dairy farms. Data were from technical assistance of the Programa de Desenvolvimento em Pecuária Leiteira (PDPL-UFV) including 26 farms, from September 2022 to August 2023, comprising an entire production cycle.
Dos Santos JB   +7 more
europepmc   +3 more sources

Polymorphism of the prolactin gene and its association with reproductive traits in F2 local crossed chickens [PDF]

open access: yesVeterinary World
Background and Aim: Reproductive traits are crucial for genetic improvement in chickens. Prolactin (PRL) is a gene involved in a complex hormonal network that regulates reproduction in chickens.
Ega Rosalinda   +2 more
doaj   +2 more sources

Evolution of life cycles and reproductive traits: Insights from the brown algae

open access: yesJournal of Evolutionary Biology, 2021
A vast diversity of types of life cycles exists in nature, and several theories have been advanced to explain how this diversity has evolved and how each type of life cycle is retained over evolutionary time.
S. Heesch   +10 more
semanticscholar   +1 more source

Estimate of inbreeding depression on growth and reproductive traits in a Large White pig population

open access: yesG3, 2022
With the broad application of genomic information, SNP-based measures of estimating inbreeding have been widely used in animal breeding, especially based on runs of homozygosity.
Y. Zhang   +4 more
semanticscholar   +1 more source

PHENOTYPIC PLASTICITY MASKS RANGE-WIDE GENETIC DIFFERENTIATION FOR VEGETATIVE BUT NOT REPRODUCTIVE TRAITS IN A SHORT-LIVED PLANT.

open access: yesEcology Letters, 2021
Genetic differentiation and phenotypic plasticity jointly shape intraspecific trait variation, but their roles differ among traits. In short-lived plants, reproductive traits may be more genetically determined due to their impact on fitness, whereas ...
J. Villellas   +51 more
semanticscholar   +1 more source

Reproductive trait differences drive offspring production in urban cavity‐nesting bees and wasps

open access: yesEcology and Evolution, 2021
The contrasting and idiosyncratic changes in biodiversity that have been documented across urbanization gradients call for a more mechanistic understanding of urban community assembly. The reproductive success of organisms in cities should underpin their
Marco Moretti   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy