Now showing items 1-10 of 34
Genetic analysis of an F2 intercross between two chicken lines divergently selected for body-weight
Background We have performed Quantitative Trait Loci (QTL) analysis of an F2 intercross between two chicken lines divergently selected for juvenile body-weight. In a previous study 13 identified loci with effects on ...
Variation in Eimeria oocyst count and species composition in weanling beef heifers
(American Society of Parasitology, 2006-10)
Rectal fecal samples were collected daily on 10 consecutive days in November 2004 from I I weaned beef heifers to assess daily variation in fecal oocyst count and species composition. Subsequent samples were collected from ...
Phenotypic evolution from genetic polymorphisms in a radial network architecture
Background The genetic architecture of a quantitative trait influences the phenotypic response to natural or artificial selection. One of the main objectives of genetic mapping studies is to identify the genetic factors ...
Proviral integrations and expression of endogenous Avian leukosis virus during long term selection for high and low body weight in two chicken lines
Background Long-term selection (> 45 generations) for low or high juvenile body weight from a common founder population of White Plymouth Rock chickens has generated two extremely divergent lines, the LWS and HWS lines. ...
Characterization of Expressed Sequence Tags From a Gallus gallus Pineal Gland cDNA Library
The pineal gland is the circadian oscillator in the chicken, regulating diversefunctions ranging from egg laying to feeding. Here, we describe the isolation andcharacterization of expressed sequence tags (ESTs) isolated ...
Central administration of dipeptides, beta-alanyl-BCAAs, induces hyperactivity in chicks
Background Carnosine (β-alanyl-L-histidine) is a putative neurotransmitter and has a possible role in neuron-glia cell interactions. Previously, we reported that carnosine induced hyperactivity in chicks when intracerebr ...
Poultry genomics puts meat on the table.
Why did the chicken cross the road, you ask? Because the draft sequence of its genome has been released, silly. So, along with other ‘bird enthusiasts’ and advocates, those long involved in chicken genetics and genetic ...
The Department of Animal & Poultry Sciences Newsletter, Fall 2006
(Virginia Tech, 2006)
Published twice a year, this newsletter details student, faculty, and staff accomplishments and activities in the Department of Animal and Poultry Sciences at Virginia Tech.
Livestock Update. November 2009
(Virginia Cooperative Extension, 2009-11-05)
Includes articles on November beef management, body condition scoring cattle, winter feeding of beef herd, age and source verification, DNA selection, bull test season, Culpeper bulls sale, sheep update, and state fair ...
Livestock Update. January 2010
(Virginia Cooperative Extension, 2009-12-23)
Includes articles on January beef management, crossbreeding cattle, calves and the cold, upcoming beef webinar and shepherds' symposium, Culpeper bull sale results, and bred ewe sale results.