Grain Sorghum: A Conundrum for Chicken-Meat Production

Liu, Sonia Y., Fox, Glen, Khoddami, Ali, Neilson, Karlie A., Truong, Ha H., Moss, Amy F. and Selle, Peter H. (2015) Grain Sorghum: A Conundrum for Chicken-Meat Production. Agriculture, 5 1224-1251. doi:10.3390/agriculture5041224

Author Liu, Sonia Y.
Fox, Glen
Khoddami, Ali
Neilson, Karlie A.
Truong, Ha H.
Moss, Amy F.
Selle, Peter H.
Title Grain Sorghum: A Conundrum for Chicken-Meat Production
Journal name Agriculture   Check publisher's open access policy
ISSN 2077-0472
Publication date 2015-12-09
Year available 2015
Sub-type Critical review of research, literature review, critical commentary
DOI 10.3390/agriculture5041224
Open Access Status DOI
Volume 5
Start page 1224
End page 1251
Total pages 28
Place of publication Basel, Switzerland
Publisher MDPI AG
Language eng
Abstract The inclusion of grain sorghum in diets for broiler chickens is quite common; however, under Australian conditions, the utilisation of starch/energy by birds offered sorghum-based diets appears inadequate. Various factors inherent in sorghum, including kafirin, phenolic compounds and phytate, may limit energy utilisation. The recent quantification of kafirin, the dominant protein fraction in sorghum, has allowed its nutritional significance to be assessed. This is important as indirect evidence suggests that kafirin concentrations in local sorghums are increasing as an unintended consequence of breeding programs. Presently, Australian sorghums do not contain condensed tannin but, from analyses and assessments of other polyphenolic compounds and phenolic acids, “non-tannin” phenols appear to be negative influences. Anecdotally, white sorghums are considered to be superior to red varieties thus the fact that polyphenolic pigments are responsible for the “redness” of sorghum assumes relevance. Inclusions of sulphite reducing agents in broiler diets have generated promising responses but seem dependent on sorghum properties. Preliminary studies have shown the possibilities of using rapid visco-analyser (RVA) starch pasting profiles, promatest protein solubilities and grain textures to indicate sorghum quality and further studies are required to confirm these hypotheses. These assessments may indicate which sorghums will best respond to reducing agents such as sodium metabisulphite. Finally, the usually modest responses of broilers to exogenous feed enzyme inclusions in sorghum-based are considered in this review.
Keyword Enzyme
Phenolic compounds
Rapid Visco-Analysis
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: Queensland Alliance for Agriculture and Food Innovation
Official 2016 Collection
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Created: Thu, 10 Dec 2015, 21:56:38 EST by Dr Glen Fox on behalf of Centre for Nutrition and Food Sciences