Results 121 to 130 of about 121,559 (279)
Perspectives from agriculture: advances in livestock breeding - implications for aquaculture genetics [PDF]
, 2006 In this paper we present livestock breeding developments that could be taken into consideration in the genetic improvement of farmed aquaculture species, especially in freshwater fish.
Nguyen, N.H., Ponzoni, R.W.
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Conservation Science and Practice, EarlyView.Abstract Bird communities in oceanic islands tend to evolve under reduced predation, making them extremely susceptible to introduced predators. Príncipe Island (São Tomé and Príncipe, Central Africa) harbors 11 endemic bird species and eight introduced mammal species.
Patrícia Guedes +8 more
wiley +1 more source
Homozygosity and risk of childhood death due to invasive bacterial disease. [PDF]
, 2009 BACKGROUND: Genetic heterozygosity is increasingly being shown to be a key predictor of fitness in natural populations, both through inbreeding depression, inbred individuals having low heterozygosity, and also through chance linkage between a marker and
core +1 more source
Environmental stress influences reproductive success in male spider mites
Ecological Entomology, EarlyView.This experiment explores how male juvenile food stress impacts reproductive traits in the haplodiploid spider mite Tetranychus urticae. Males exposed to juvenile food stress had lower reproductive success and females mated to these males also suffered reduced fitness as they were not able to produce optimal offspring sex ratios. The negative effects of
Elsa Noël +4 more
wiley +1 more source
INBREEDING DEPRESSION FOR YIELD AND YIELD COMPONENTS IN Fragaria × ananassa Duch.
Acta Scientiarum Polonorum: Hortorum Cultus, 2012 In case of plants, inbreeding depression can be measured through comparison of the fitness of selfed individuals with outcrossed individuals. In this paper the effect of repeated inbreeding on fruit yield and yield component of strawberries (Fragaria ...
Elżbieta Kaczmarska
doaj
Variable social organization and breeding system of a social parrot revealed by genetic analysis
Ibis, EarlyView.Social organization and contributions to reproduction vary widely within and between species that breed in groups. Such variation often arises from the process of group formation, which drives patterns of relatedness and hence the degree of social conflict and co‐operation between group members.
Francesca S. E. Dawson Pell +4 more
wiley +1 more source
Sex‐biased dispersal in the Arabian babbler (Argya squamiceps)
Ibis, EarlyView.Sex‐biased dispersal plays a central role in shaping social structure and reproductive strategies in many bird species. In the Arabian Babbler Argya squamiceps, a cooperatively breeding species with pronounced male philopatry, dispersal occurs individually or in kin‐based same‐sex coalitions.
Roni Ostreiher +2 more
wiley +1 more source
Journal of Animal Breeding and Genetics, EarlyView.ABSTRACT This study aimed to estimate the variance components, heritabilities and genetic correlations between four new different categories of stayability (STAY48‐2, STAY48‐3, STAY54‐2, STAY54‐3) with weight at 240 days of age (W240), weight at 450 days of age (W450), scrotal circumference at 365 days of age (SC365), age at puberty in males (APM ...
Letícia Silva Pereira +5 more
wiley +1 more source
Coefficients of relationship and inbreeding among Finnish Ayrshire and Holstein-Friesian
Agricultural and Food Science, 2008 Pedigree data from national breeding value evaluations were used in calculation of the coefficient and rate of inbreeding, average coefficient and rate of relationship and generation intervals for the Finnish Ayrshire and Holstein-Friesian dairy cattle ...
T. VAHLSTEN +2 more
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