Linked Life Data

19373728

Source:http://linkedlifedata.com/resource/pubmed/id/19373728

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-4-17
pubmed:abstractText
1. While changes in corticosterone (B) during late embryogenesis are thought to play a role in the hatching process, only a scant and controversial literature exists concerning the effects of in ovo B on the length of incubation and chick body weight at hatching. Because female Japanese quail selected for exaggerated (high stress, HS) rather than reduced (low stress, LS) plasma B response to brief mechanical restraint deposit more B into their eggs, these stress lines provide an excellent model to study the relationship between embryonic B and incubation length and hatchling body weight. 2. Differences in the duration of incubation and chick body weight at emergence were assessed using eggs laid by LS and HS quail. 3. On average, eggs from HS hens hatched 3.7 h sooner than did eggs from LS hens while mean body weight at emergence was similar in hatchlings of both lines. Thus, selection for exaggerated adrenocortical responsiveness is associated with a reduction in the length of egg incubation without altering hatchling body weight. 4. This finding is important to the poultry industry because it warns layer, breeder farm and hatchery managers that unless stress in hens during egg formation is avoided, an abbreviated incubation period may result.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1466-1799
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
266-71
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Length of incubation and hatchling body weight in quail selected for reduced or exaggerated adrenocortical responsiveness to brief restraint.
pubmed:affiliation
Applied Animal Biotechnology Laboratories, School of Animal Sciences, Louisiana Agricultural Experiment Station, Louisiana State University Agricultural Center, Louisiana State University, Baton Rouge, LA 70803, USA.
pubmed:publicationType
Journal Article