Testes size, testosterone production and reproductive behaviour in a natural mammalian mating system [PDF]
, 2012 1. Testosterone (T) is a key mediator in the expression of numerous morphological and behavioural traits in mammals, but the factors underlying individual variation in circulating T levels are poorly understood. 2.
Monfort, Steven L. +5 more
core +5 more sources
BMC Genomics, 2023 Background Given the economic relevance of fertility and reproductive traits for the beef cattle industry, investigating their genetic background and developing effective breeding strategies are paramount.
Felipe E. Carvalho +12 more
doaj +1 more source
Personality traits differentially affect components of reproductive success in a Neotropical poison frog. [PDF]
, 2023 Individual reproductive success has several components, including the acquisition of mating partners, offspring production, and offspring survival until adulthood.
Ringler, Eva +3 more
core +2 more sources
Genetics of heifer reproductive traits in Japanese Black cattle [PDF]
Asian-Australasian Journal of Animal Sciences, 2020 Objective The objective of this study was to identify environmental factors strongly associated with and to estimate genetic parameters of reproductive traits in Japanese Black heifers. Methods Data included reproduction records of Japanese Black heifers
Asep Setiaji, Takuro Oikawa
doaj +1 more source
Non-genetic factors affecting phenotypic parameters of milk production and reproductive performance in lactating Egyptian buffaloes [PDF]
Archives of Agriculture Sciences Journal, 2022 Improving productive and reproductive performance in Egyptian buffaloes requires knowledge of the influence of environmental and genetic factors on phenotypic traits.
A. Ayad, M. Abd-Allah, M. Kamal
doaj +1 more source
Reproductive Traits: Evidence for Sexually Selected Sperm [PDF]
Current Biology, 2008 Sperm exhibit extraordinary morphological divergence yet precise evolutionary causes often remain elusive. A quantitative genetic study sheds light on the major role postcopulatory sexual selection could play in determining sperm size.
Martin, O Y, Demont, M
openaire +3 more sources
Genetic and Genomic Analyses of Service Sire Effect on Female Reproductive Traits in Holstein Cattle
Frontiers in Genetics, 2021 Fertility and reproductive performance are key drivers of dairy farm profitability. Hence, reproduction traits have been included in a large majority of worldwide dairy cattle selection indexes.
Ziwei Chen +7 more
doaj +1 more source
The evolution of male and female reproductive traits in simultaneously hermaphroditic terrestrial gastropods [PDF]
, 2007 Our understanding of postcopulatory sexual selection forcing reproductive trait evolution continues to be illuminated by comparative studies. Inter- as well as intraspecific comparisons offer the opportunity to study the long-lasting processes of ...
Beese, Kathleen
core +1 more source
Ant species identity mediates reproductive traits and allocation in an ant-garden bromeliad [PDF]
, 2011 Background and Aims Determining the sources of variation in floral morphology is crucial to understanding the mechanisms underlying Angiosperm evolution.
Alain Dejean +12 more
core +1 more source
An Assessment of the Genetic Parameters of Boars’ Reproductive Traits
Genes, 2023 The aim of this study was to estimate genetic parameters for the reproductive traits of boars based on single-nucleotide polymorphism data. A total of 109,836 semen samples from 2249 boars were collected between 2010 and 2022. Five basic traits were assessed: sperm volume, sperm concentration, motility, number of abnormal sperm, and, for the first time
Emil Krupa +5 more
openaire +2 more sources