학술논문

In vivo methods to study the digestion of starch in pigs and poultry
Document Type
Academic Journal
Source
Animal Feed Science and Technology. Sept 30, 2006, Vol. 130 Issue 1-2, p114, 22 p.
Subject
Swine -- Methods
Medical equipment -- Methods
Physiological apparatus -- Methods
Poultry industry -- Methods
Language
English
ISSN
0377-8401
Abstract
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.anifeedsci.2006.01.020 Byline: Knud Erik Bach Knudsen, Helle Nygaard LA[bar]rke, Sanna Steenfeldt, Mette Skou Hedemann, Henry JA[cedilla]rgensen Keywords: Starch; Digestibility; Slaughter technique; Cannulation; Catheterisation Abstract: Starch is the largest constituent in diets for pigs and poultry. Pure starch consists predominantly of [alpha]-glucan in the form of amylose and amylopectin, embedded in a relatively hydrophobic protein network and surrounded by cell walls. The techniques most commonly employed when studying the quantitative and qualitative digestion of starch are: (1) the slaughter technique that involves slaughtering of animals at a given time point after a meal and collection of samples at various sites of the gastrointestinal tract, (2) the cannulation techniques that involve surgical implantation of one or more permanent cannulas in the gastrointestinal tract (stomach, small intestine and caecum), and (3) the catheterisation technique with surgical installation of permanent catheters in the portal vein and an artery. Results obtained in studies with pigs and poultry are used to discuss strengths and weaknesses of the different methodologies in gaining new insight into the digestion of starch in non-ruminant species. Author Affiliation: Department of Animal Health, Welfare and Nutrition, Danish Institute of Agricultural Sciences, P.O. Box 50, DK-8830 Tjele, Denmark Article Note: (footnote) [star] This paper is part of the special issue entitled "Starch structure and digestibility: Basic aspects and new research", Guest Edited by Birger Svihus and Ole Taugbol.