Document Detail


Effect of eggshell temperature and oxygen concentration during incubation on the developmental and physiological status of broiler hatchlings in the perinatal period.
MedLine Citation:
PMID:  21597067     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This study evaluated the influence of incubation conditions on the developmental and physiological status of birds in the perinatal period, which spans the end of incubation until the early posthatch period. Embryos were incubated at a normal (37.8°C) or high (38.9°C) eggshell temperature (EST) and a low (17%), normal (21%), or high (25%) O(2) concentration from d 7 until 19 of incubation. After d 19 of incubation, EST was maintained, but O(2) concentrations were 21% for all embryos. Body and organ weights, and hepatic glycogen levels were measured at d 18 of incubation and at 12 and 48 h after emergence from the eggshell. In addition, blood metabolites were measured at 12 and 48 h after emergence from the eggshell. Embryos incubated at a high EST and low O(2) concentration had the highest mortality in the last week of incubation, which may be related to their low yolk-free body mass (YFBM) or a reduced nutrient availability for hatching (i.e., hepatic glycogen). High EST, compared with normal EST, decreased YFBM. This may be due to the shorter incubation duration of 8 h, the lower weight of supply organs (i.e., heart and lung), or a lack of glucose precursors. Because of this lack of glucose precursors, embryos incubated at high EST may have used proteins for energy production instead of for body development at the end of incubation. The YFBM at d 18 of incubation increased with an increase in O(2) concentration. However, differences between the normal and high O(2) concentration disappeared at 12 and 48 h after emergence, possibly because the high O(2) concentration had difficulties adapting to lower O(2) concentrations in the perinatal period. Blood metabolites and hepatic glycogen were comparable among O(2) concentrations, indicating that the physiological status at hatch may be related to the environment that the embryo experienced during the hatching process. In conclusion, EST and O(2) concentration differentially influence the developmental and physiological status of broilers during the perinatal period.
Authors:
R Molenaar; I van den Anker; R Meijerhof; B Kemp; H van den Brand
Related Documents :
23769567 - Serum galectin-3: a risk factor for vascular complications in type 2 diabetes mellitus.
23869147 - Anti-mullerian hormone and antral follicle count as predictors of ovarian response in a...
24694337 - Systemic delivery of estradiol, but not testosterone or progesterone, alters vldl-trigl...
24723197 - Preliminary results of indoor radon survey in v4 countries.
978097 - Production of antisera against highly purified human follicle-stimulating hormone, lute...
19576217 - Fecal endocrine profiles and ejaculate traits in black-footed cats (felis nigripes) and...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Poultry science     Volume:  90     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-05-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1257-66     Citation Subset:  IM    
Affiliation:
HatchTech Incubation Technology B.V., PO Box 256, 3900 AG Veenendaal, the Netherlands;
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Levels of endogenous {beta}-glucanase activity in barley affect the efficacy of exogenous enzymes us...
Next Document:  Hatching system and time effects on broiler physiology and posthatch growth.