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

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

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

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

Animal Science

Research output: Contribution to journal › Conference article › peer-review

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.

Original language	English
Pages (from-to)	37-40
Journal	Proceedings of the Australian Poultry Science Symposium
Volume	30
Publication status	Published - 2019
Event	APSS 2019: 30th Annual Australian Poultry Science Symposium - Sydney, Australia Duration: 17 Feb 2019 → 20 Feb 2019

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@article{d23b8becfad740abaea23b57ca5053d7,

title = "The Relevance of Starch-Protein Digestive Dynamics in Crude Protein-Reduced Broiler Diets",

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.",

author = "Selle, \{P H\} and Chrystal, \{P V\} and Moss, \{A F\} and D Yin and A Khoddami and Naranjo, \{V D\} and Liu, \{S Y\}",

year = "2019",

language = "English",

volume = "30",

pages = "37--40",

journal = "Proceedings of the Australian Poultry Science Symposium",

issn = "1034-3466",

publisher = "University of Sydney",

note = "APSS 2019: 30th Annual Australian Poultry Science Symposium ; Conference date: 17-02-2019 Through 20-02-2019",

}

TY - JOUR

T1 - The Relevance of Starch-Protein Digestive Dynamics in Crude Protein-Reduced Broiler Diets

AU - Selle, P H

AU - Chrystal, P V

AU - Moss, A F

AU - Yin, D

AU - Khoddami, A

AU - Naranjo, V D

AU - Liu, S Y

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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.

UR - https://sydney.edu.au/vetscience/apss/

M3 - Conference article

SN - 1034-3466

VL - 30

SP - 37

EP - 40

JO - Proceedings of the Australian Poultry Science Symposium

JF - Proceedings of the Australian Poultry Science Symposium

T2 - APSS 2019: 30th Annual Australian Poultry Science Symposium

Y2 - 17 February 2019 through 20 February 2019

ER -

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

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