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Effect of starch gelatinisation on nutrient digestibility and plasma metabolites in pigeons

Enass Abd El-Khalek UGent, Isabelle Kalmar UGent, Stephanie Van Weyenberg UGent, Guy Werquin and Geert Janssens UGent (2009) JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION. 93(3). p.359-365
abstract
Feed manufacturing exerts physical and chemical changes in ingredients, including the gelatinisation of starch. Studies on the effect of the degree of starch gelatinisation on nutrient digestibility, metabolism and subsequent performance show inconsistent results, and no data are available in pigeons. In a cross-over trial, fourteen adult pigeons were randomly divided into two groups, in which two extruded pellet diets were tested. Both the diets were similar in ingredient composition and nutrient content, but differed in extrusion conditions, resulting in a different degree of starch gelatinisation: pellets with high gelatinisation degree (HG; 73.6% gelatinisation) and low gelatinisation degree (LG; 53.1% gelatinisation). After a 14-day adaptation period, all excreta were gathered per bird during a 5-day collection period. Coefficients of apparent digestibility of dry matter (DM), crude protein (CP), ether extract (EE), crude fibre (CF), crude ash (CA) and nitrogen free extract (NFE) as well as apparent nitrogen retention were calculated from proximate analyses of feed and excreta. Further, excreta consistency was subjectively scored. Blood samples were taken at the end of each period and plasma samples were analysed for glucose, fructosamine and triglycerides. Feed intake and body weight changes were recorded weekly. The apparent digestibility coefficients (ADCs) of DM, OM, CP, EE, CA and NFE were significantly higher in the LG group (p <= 0.05). The ADC of crude fibre was numerically higher in the LG group but not significant, and no significant differences were found in starch digestibility. Excreta consistency score tended to be higher in the LG diet group. Neither plasma glucose nor plasma fructosamine values were significantly different between the two test diets. The results of this study show that lower degree of starch gelatinisation in extruded diets can enhance digestibility in pigeons.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
extrusion, starch, gelatinisation, digestibility, pigeons, TROUT ONCORHYNCHUS-MYKISS, PROCESSED WHEAT PRODUCTS, BROILER-CHICKENS, WEANED PIGLETS, DIGESTION RATE, YOUNG-PIGS, EXTRUSION, DIETS, PERFORMANCE, PROTEIN
journal title
JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION
J. Anim. Physiol. Anim. Nutr.
volume
93
issue
3
pages
359 - 365
Web of Science type
Article
Web of Science id
000266112200010
JCR category
VETERINARY SCIENCES
JCR impact factor
1.229 (2009)
JCR rank
44/141 (2009)
JCR quartile
2 (2009)
ISSN
0931-2439
DOI
10.1111/j.1439-0396.2008.00868.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
681721
handle
http://hdl.handle.net/1854/LU-681721
date created
2009-06-07 11:46:59
date last changed
2009-10-12 12:24:22
@article{681721,
  abstract     = {Feed manufacturing exerts physical and chemical changes in ingredients, including the gelatinisation of starch. Studies on the effect of the degree of starch gelatinisation on nutrient digestibility, metabolism and subsequent performance show inconsistent results, and no data are available in pigeons. In a cross-over trial, fourteen adult pigeons were randomly divided into two groups, in which two extruded pellet diets were tested. Both the diets were similar in ingredient composition and nutrient content, but differed in extrusion conditions, resulting in a different degree of starch gelatinisation: pellets with high gelatinisation degree (HG; 73.6\% gelatinisation) and low gelatinisation degree (LG; 53.1\% gelatinisation). After a 14-day adaptation period, all excreta were gathered per bird during a 5-day collection period. Coefficients of apparent digestibility of dry matter (DM), crude protein (CP), ether extract (EE), crude fibre (CF), crude ash (CA) and nitrogen free extract (NFE) as well as apparent nitrogen retention were calculated from proximate analyses of feed and excreta. Further, excreta consistency was subjectively scored. Blood samples were taken at the end of each period and plasma samples were analysed for glucose, fructosamine and triglycerides. Feed intake and body weight changes were recorded weekly. The apparent digestibility coefficients (ADCs) of DM, OM, CP, EE, CA and NFE were significantly higher in the LG group (p {\textlangle}= 0.05). The ADC of crude fibre was numerically higher in the LG group but not significant, and no significant differences were found in starch digestibility. Excreta consistency score tended to be higher in the LG diet group. Neither plasma glucose nor plasma fructosamine values were significantly different between the two test diets. The results of this study show that lower degree of starch gelatinisation in extruded diets can enhance digestibility in pigeons.},
  author       = {Abd El-Khalek, Enass and Kalmar, Isabelle and Van Weyenberg, Stephanie and Werquin, Guy and Janssens, Geert},
  issn         = {0931-2439},
  journal      = {JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION},
  keyword      = {extrusion,starch,gelatinisation,digestibility,pigeons,TROUT ONCORHYNCHUS-MYKISS,PROCESSED WHEAT PRODUCTS,BROILER-CHICKENS,WEANED PIGLETS,DIGESTION RATE,YOUNG-PIGS,EXTRUSION,DIETS,PERFORMANCE,PROTEIN},
  language     = {eng},
  number       = {3},
  pages        = {359--365},
  title        = {Effect of starch gelatinisation on nutrient digestibility and plasma metabolites in pigeons},
  url          = {http://dx.doi.org/10.1111/j.1439-0396.2008.00868.x},
  volume       = {93},
  year         = {2009},
}

Chicago
Abd El-Khalek, Enass, Isabelle Kalmar, Stephanie Van Weyenberg, Guy Werquin, and Geert Janssens. 2009. “Effect of Starch Gelatinisation on Nutrient Digestibility and Plasma Metabolites in Pigeons.” Journal of Animal Physiology and Animal Nutrition 93 (3): 359–365.
APA
Abd El-Khalek, E., Kalmar, I., Van Weyenberg, S., Werquin, G., & Janssens, G. (2009). Effect of starch gelatinisation on nutrient digestibility and plasma metabolites in pigeons. JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION, 93(3), 359–365.
Vancouver
1.
Abd El-Khalek E, Kalmar I, Van Weyenberg S, Werquin G, Janssens G. Effect of starch gelatinisation on nutrient digestibility and plasma metabolites in pigeons. JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION. 2009;93(3):359–65.
MLA
Abd El-Khalek, Enass, Isabelle Kalmar, Stephanie Van Weyenberg, et al. “Effect of Starch Gelatinisation on Nutrient Digestibility and Plasma Metabolites in Pigeons.” JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION 93.3 (2009): 359–365. Print.