Random genetic drift in an egg-laying strain of poultry
نویسندگان
چکیده
منابع مشابه
Genetic Analysis of Egg Quality Traits in Bovan Nera Black Laying Hen under Sparse Egg Production Periods
The present research was designed to examine the genetic analysis of egg weight, egg yolk weight and egg albumen weight of Bovan Neva Black laying hens at 25, 51 and 72 weeks. For this purpose, thirty birds were selected from the layer flock in the Babcock University Teaching and Research Farm. They were individually housed in separate labeled battery cage. A total of thirty eggs were collected...
متن کاملRandom Genetic Drift & Gene Fixation
Random Genetic Drift is one of the evolutionary forces that effects the distribution of alleles and changes their frequencies in populations. The main idea behind this theory is that genetic changes can happen randomly. This can be explained through the Bottleneck effect. There are two main factors that have an influence on genetic drift, the first one is the Effective Population Size Ne , whic...
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The purpose of the present study is to get a better knowledge of the Malagasy indigenous race of hen through its egg physical characteristics and its laying performance in order to promote villager poultry production. This study was undertaken within a local family farm, of the rural Township of Ambalamahasoa, Haute Matsiatra Region, Madagascar, with 25 hens and 4 roosters in age to reproduce. ...
متن کاملEgg-laying.
C. elegans hermaphrodites are self-fertile, and their rate and temporal pattern of egg-laying are modulated by diverse environmental cues. Egg-laying behavior has served as an important phenotypic assay for the genetic dissection of neuronal signal transduction mechanisms. This chapter reviews our current understanding of the neuronal and neurochemical mechanisms underlying the control of egg-l...
متن کاملHousing system and laying hen strain impacts on egg microbiology.
Alternative hen housing is becoming more commonplace in the egg market. However, a complete understanding of the implications for alternative housing systems on egg safety has not been achieved. The current study examines the impact of housing Hy-Line Brown, Hy-Line Silver Brown, and Barred Plymouth Rock hens in conventional cage, cage-free, and free range egg production systems on shell microb...
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ژورنال
عنوان ژورنال: Genetical Research
سال: 1980
ISSN: 0016-6723,1469-5073
DOI: 10.1017/s0016672300014105