Article (Scientific journals)
Intermittent thermal manipulations of broiler embryos during late incubation and their immediate effect on the embryonic development and hatching process.
Willemsen, H.; Li, Yongzhen; Willems, E. et al.
2011In Poultry Science, 90 (6), p. 1302-12
Peer Reviewed verified by ORBi
 

Files


Full Text
Willemsen et al 2011 PS2.pdf
Publisher postprint (1.06 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Animals; Blood Glucose; Body Weight; Chick Embryo/physiology; Chickens/blood/physiology; Egg Yolk/metabolism; Glycogen/metabolism; Hydrogen-Ion Concentration; Liver/metabolism; Oxygen; Temperature; Time Factors
Abstract :
[en] Intermittent high (+3 degrees C) and low (-3 degrees C) temperature treatments for 4 h on embryonic day (E) 16, E17, and E18 showed differential effects on embryonic metabolism, without influencing embryonic growth or hatchability. Embryos in the high-temperature group shifted to a more anaerobic metabolism, as indicated by a lower partial pressure of O(2) and a higher partial pressure of CO(2) in the air cell, lower blood pH, and higher lactic acid production. Three hours after the end of the high-temperature treatment, a decrease in metabolism was observed, as indicated by the lower partial pressure of CO(2) and higher partial pressure of O(2) in the air cell and increased plasma triglyceride levels. The embryos in the low-temperature group responded by temporarily slowing down their metabolism, especially the metabolism of carbohydrates and lipids, as indicated by altered air cell gases, a higher relative yolk weight, higher plasma triglyceride level, and higher liver glycogen level. Three hours after the end of the temperature treatment, the metabolism of embryos in the low-temperature treatment had increased to the level of the control temperature group. However, for both temperature treatments, during the hatching process, all the shortages and excesses created were restored to control levels, which would explain the lack of change in embryo growth and hatchability and the slight delay in the hatching process. These mild consequences of the intermittent temperature treatment indicate that the different metabolic shifts made by the embryos seem to be efficient in overcoming the challenges of the intermittent high- or low-temperature treatment during late incubation.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Willemsen, H.
Li, Yongzhen 
Willems, E.
Franssens, L.
Wang, Y.
Decuypere, E.
Everaert, Nadia ;  KU Leuven > Department of Biosystems > Division Livestock-Nutrition-Quality
Language :
English
Title :
Intermittent thermal manipulations of broiler embryos during late incubation and their immediate effect on the embryonic development and hatching process.
Publication date :
2011
Journal title :
Poultry Science
ISSN :
0032-5791
eISSN :
1525-3171
Publisher :
Poultry Science Association, United States - Illinois
Volume :
90
Issue :
6
Pages :
1302-12
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 December 2013

Statistics


Number of views
46 (6 by ULiège)
Number of downloads
2 (2 by ULiège)

Scopus citations®
 
43
Scopus citations®
without self-citations
41
OpenCitations
 
43

Bibliography


Similar publications



Contact ORBi