Is malting barley better feed for cattle than feed barley?

Fox, G., Kelly, A., Bowman, J., Inkerman, A., Poulsen, D. and Henry, R. (2009) Is malting barley better feed for cattle than feed barley?. Journal of the Institute of Brewing, 115 2: 95-104. doi:10.1007/s00122-014-2447-z

Author Fox, G.
Kelly, A.
Bowman, J.
Inkerman, A.
Poulsen, D.
Henry, R.
Title Is malting barley better feed for cattle than feed barley?
Journal name Journal of the Institute of Brewing   Check publisher's open access policy
ISSN 0046-9750
Publication date 2009-01-01
Sub-type Article (original research)
DOI 10.1007/s00122-014-2447-z
Open Access Status Not Open Access
Volume 115
Issue 2
Start page 95
End page 104
Total pages 10
Place of publication London, England, U.K.
Publisher Institute of Brewing & Distilling
Language eng
Abstract Evaluation of resistance to Pyrenophora teres f. maculata in barley breeding populations via association mapping revealed a complex genetic architecture comprising a mixture of major and minor effect genes. In the search for stable resistance to spot form of net blotch (Pyrenophora teres f. maculata, SFNB), association mapping was conducted on four independent barley (Hordeum vulgare L.) breeding populations comprising a total of 898 unique elite breeding lines from the Northern Region Barley Breeding Program in Australia for discovery of quantitative trait loci (QTL) influencing resistance at seedling and adult plant growth stages. A total of 29 significant QTL were validated across multiple breeding populations, with 22 conferring resistance at both seedling and adult plant growth stages. The remaining 7 QTL conferred resistance at either seedling (2 QTL) or adult plant (5 QTL) growth stages only. These 29 QTL represented 24 unique genomic regions, of which five were found to co-locate with previously identified QTL for SFNB. The results indicated that SFNB resistance is controlled by a large number of QTL varying in effect size with large effects QTL on chromosome 7H. A large proportion of the QTL acted in the same direction for both seedling and adult responses, suggesting that phenotypic selection for SFNB resistance performed at either growth stage could achieve adequate levels of resistance. However, the accumulation of specific resistance alleles on several chromosomes must be considered in molecular breeding selection strategies.
Formatted abstract
Barley grain from a combined intermediate and advanced barley breeding trial was assessed for grain, feed and malt quality from two sites over two consecutive years, with the objective to ascertain relationships between these traits. Results indicated there were genetic effects for both malt (hot water extract and friability) and "feed" traits (as measured by hardness, acid detergent fibre, starch and in-sacco dry matter digestibility). The feed trait values were generally independent of the malt trait values. However, there were positive relationships between friability, hardness and protein, as well as a negative relationship between extract and husk. Extract also had a positive relationship with test weight but appeared to be independent from the feed traits. Test weight also showed little relationship to the feed traits. Heritability values ranged from low to high for almost all traits. This study details where both malt and cattle feed parameters have been compared and the results indicated that while malt and feed traits do not correlate directly, malt cultivars can exhibit excellent feed characteristics, equal to or better than feed cultivars. This data highlights the benefit of selecting for malt quality even if a breeding program would be interested at targeting specific feed quality. © 2009 The Institute of Brewing & Distilling.
Keyword Extract
Feed quality
Malt quality
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Alliance for Agriculture and Food Innovation
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Created: Tue, 08 Mar 2011, 02:06:57 EST