The Relevance of Starch-Protein Digestive Dynamics in Crude Protein-Reduced Broiler Diets

Selle, P H; Chrystal, P V; Moss, A F; Yin, D; Khoddami, A; Naranjo, V D; Liu, S Y

Author(s)

Selle, P H

Chrystal, P V

Moss, A F

Yin, D

Khoddami, A

Naranjo, V D

Liu, S Y

Publication Date

2019

Abstract

Broiler chickens were offered diets formulated to contain 200, 188, 172 and 156 g/kg crude protein (CP) from 14 to 35 days post-hatch. Feed conversion ratio (FCR) increased linearly from 1.495 to 1.629 as dietary CP declined with a corresponding increase in distal jejunal starch-protein disappearance rate ratios from 2.08 to 3.17. These two parameters were quadratically related (r = 0.838; P < 0.001) and there was a linear relationship (r = 0.605; P < 0.001) between relative fat-pad weights and FCR. Increasing starch-protein disappearance rate ratios are detrimental for birds offered CP-reduced diets and the implications of these outcomes are discussed.

Citation

Proceedings of the Australian Poultry Science Symposium, v.30, p. 37-40

ISSN

1034-6260

1034-3466

Link

https://hdl.handle.net/1959.11/27261

Language

Publisher

University of Sydney

Rights

Attribution-NonCommercial-NoDerivatives 4.0 International

Title

The Relevance of Starch-Protein Digestive Dynamics in Crude Protein-Reduced Broiler Diets

Type of document

Conference Publication

Entity Type

Publication

Author(s)	Selle, P H Chrystal, P V Moss, A F Yin, D Khoddami, A Naranjo, V D Liu, S Y
Publication Date	2019
Abstract	Broiler chickens were offered diets formulated to contain 200, 188, 172 and 156 g/kg crude protein (CP) from 14 to 35 days post-hatch. Feed conversion ratio (FCR) increased linearly from 1.495 to 1.629 as dietary CP declined with a corresponding increase in distal jejunal starch-protein disappearance rate ratios from 2.08 to 3.17. These two parameters were quadratically related (r = 0.838; P < 0.001) and there was a linear relationship (r = 0.605; P < 0.001) between relative fat-pad weights and FCR. Increasing starch-protein disappearance rate ratios are detrimental for birds offered CP-reduced diets and the implications of these outcomes are discussed.
Citation	Proceedings of the Australian Poultry Science Symposium, v.30, p. 37-40
ISSN	1034-6260 1034-3466
Link	https://hdl.handle.net/1959.11/27261
Language	en
Publisher	University of Sydney
Rights	Attribution-NonCommercial-NoDerivatives 4.0 International
Title	The Relevance of Starch-Protein Digestive Dynamics in Crude Protein-Reduced Broiler Diets
Type of document	Conference Publication
Entity Type	Publication

The Relevance of Starch-Protein Digestive Dynamics in Crude Protein-Reduced Broiler Diets

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