Document Detail


Yolk sac fatty acid composition, yolk absorption, embryo development, and chick quality during incubation in eggs from young and old broiler breeders.
MedLine Citation:
PMID:  24931969     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The objective of the present study was to examine the changes in yolk and yolk sac fatty acid composition and also to investigate egg content, yolk absorption, embryo development during incubation, and chick quality at hatch in eggs from 36- and 52-wk-old broiler breeders. The fatty acid profiles of the yolk, the yolk sac of embryos, and the residual yolk sac of chicks were analyzed before incubation, on d 18, and at hatch, respectively. Yolk sac weight, and embryo weight and length were measured on d 18, and chick weight and length were measured at hatch. Egg weight, yolk and albumen weight, yolk percentage, and yolk:albumen ratio increased as breeder age increased, but the albumen percentage decreased. Yolk absorption in absolute value (g) was higher in embryos from the old flock on d 18 and at hatch. Relative yolk absorption was similar between age groups on d 18, whereas it was higher in the young flock at hatch. Breeder age affected the yolk sac weight and was higher in the old flock during incubation. Embryo or chick weight and length, and yolk-free BW were affected by breeder age during incubation. These parameters were higher in the old flock with a difference of 3.7 g, 0.8 cm, and 2.6 g, respectively, on d 18 and 7.4 g, 1.4 cm, and 6.3 g, respectively, at hatch compared with the young flock. The effect of breeder age on fatty acid composition differed significantly by sampling day. Palmitic, stearic, oleic, and linoleic acids were major fatty acids in the fresh yolk, ranging from 13.02 to 29.24%. These were followed by palmitoleic and arachidonic acids ranging from 1.24 to 7.04%, with the remaining fatty acids below 1%. Higher concentrations of myristic, palmitoleic, and oleic acids and lower concentrations of heptadeconoic, stearic, linoleic, and arachidonic acids were found in the residual yolk sac of the young flock than the old flock. The results showed preferentially selective absorption of some fatty acids by the embryo during incubation.
Authors:
U Sahan; A Ipek; A Sozcu
Related Documents :
23273439 - Fatty acid composition and interrelationships among eight retail cuts of grass-feed beef.
14985019 - Acid dye removal: comparison of surfactant-modified mesoporous fsm-16 with activated ca...
3000969 - Free radical-induced cross-linking of polydeoxythymidylic acid in deoxygenated aqueous ...
18960399 - Evaluation of the lanthanum fluoride membrane electrode response in acidic solutions th...
11539089 - Gravitropism in higher plant shoots. iv. further studies on participation of ethylene.
12578179 - Characteristics of coagulation-flocculation of humic acid with effective performance of...
24285329 - Methods for (11) c- and (18) f-labelling of amino acids and derivatives for positron em...
2129299 - Do salicylates and ascorbate increase the outer membrane permeability to hydrophobic an...
12892669 - Ozonisation coupled with biological degradation for treatment of phenolic pollutants: a...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-6-15
Journal Detail:
Title:  Poultry science     Volume:  -     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-6-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Poultry Science Association Inc.
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:  Effect of free-range days on a local chicken breed: Growth performance, carcass yield, meat quality,...
Next Document:  25-Hydroxycholecalciferol supplementation improves growth performance and decreases inflammation dur...