Influence of<i>β</i>‐glucanase on feeding value of barley for poultry and moisture content of excreta

Gohl, B.; alden, Sanaa Burhan; Elwinger, K.; Thomke, S.

doi:10.1080/00071667808416440

Cited by 87 publications

(30 citation statements)

References 13 publications

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“…Further studies are needed to determine these relationships in malting and feeding experiments and to relate them to the present observations. It is generally considered that [~-glucans giving rise to high viscosity cause difficulties in the brewing process and in feeding of monogastic animals (5,10,15,22,26,27,32,52). A low content of soluble ~-glucans in the grains can therefore be expected to remove one source of the problem.…”

Section: Sensitivity Of the Techniquementioning

confidence: 99%

“…Since ~-glucans cause trouble in the breweries as well as in feeding of monogastic animals (10,26,27), it will be profitable to breed for a barley with as little soluble [3-glucan as possible. The present communication presents a method by which the viscosity of an acid flour extract prepared from the grains of a single plant, a single grain or even half a grain can be rapidly and accurately determined.…”

Section: Introductionmentioning

confidence: 99%

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The relationship between the viscosity of an acid flour extract of barley and its β-glucan content

Aastrup

1979

Carlsberg Res. Commun.

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The relationship between the viscosity of an acid flour extract and the acid-soluble, acid-insoluble and total [~-glucan content of barley flour has been investigated. The extract viscosity was found to be closely related (R2 = 0.99, S.E.E. = 0.19) to the content of soluble ~,-glucan. It is concluded that the acid-soluble [~-glucans from 14 of the 18 different genotypes studied have a similar structural nature. Genotypes containing the lys-3a allele were found to have very low extract viscosities and [~-glucan contents. Quick and accurate methods are described for measuring viscosities of acid extracts made from flour derived from grains of a single plant and flour derived from a single grain. These methods can be used to screen plants for their soluble (3-glucan content in a plant breeding program.

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Section: Sensitivity Of the Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The relationship between the viscosity of an acid flour extract of barley and its β-glucan content

Aastrup

1979

Carlsberg Res. Commun.

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“…It has been demonstrated that NSP levels of some wheat and barley samples produces wet litter, sticky droppings, and reduced performance in young broilers (Willingham et al 1960;Gohl et al 1978;Mollah et al 1983;Classen et al 1988Classen et al , 1995Annison and Choct 1991).…”

mentioning

confidence: 99%

Effect of cultivar and environment on the feeding value of Western Canadian wheat and barley samples with and without enzyme supplementation

Scott¹,

Silversides²,

Classen³

et al. 1998

Can. J. Anim. Sci.

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Scott, T. A., Silversides, F. G., Classen, H. L., Swift, M. L. and Bedford, M. R. 1998. Effect of cultivar and environment on the feeding value of Western Canadian wheat and barley samples with and without enzyme supplementation. Can J. Anim. Sci. 78: 649-656. The feeding value of nine wheat cultivars grown in replicate in three locations in each of two crop years, and 14 barley cultivars grown in seven locations over three crop years was tested with or without an appropriate commercial enzyme using a broiler chick bioassay. Four pens of six male broilers were fed mash diets containing 80% of the test cereal with or without enzyme from 4 to 17 d. Digestibilities were determined using an acid insoluble ash marker at 1.1% of diet. Significant intraclass correlation coefficients between duplicate wheat samples suggested a common effect of the location, but their low to moderate values suggested the presence of random variation or variation due to unique growing conditions within location. For both wheat and barley samples, the growing location affected the feeding value of the cereal grain and subsequent broiler chick performance. Durum wheat cultivars had higher feeding values than that of other wheat classes, both with and without enzyme supplementation, and the response to enzyme supplementation was low, likely reflecting a low level of soluble non-starch polysaccharides. The values of hulless barley cultivars were similar to those of hulled cultivars without enzyme, but the lower crude fibre in hulless barley resulted in higher feeding values when diets were supplemented with enzyme. The response to enzyme supplementation for both wheat and barley cultivars was dependent on the feeding value of the cereal grain without supplementation. Knowledge of variation in enzyme response could be used by feed manufacturers to determine the economic merit of supplementing with enzymes. Can J. Anim. Sci. 78: 649-656. La valeur alimentaire de neuf cultivars de blé cultivés en double à sept locals dans deux années et 14 cultivars d'orge cultivés à sept locals dans trois années à été verifiée avec ou sans enzyme commercial dans un essai biologique pour les jeunes poussins à chair. Quatre parquets de six poulets mâles ont été alimentés avec des rations moulées contenant 80 % de céréale à tester avec ou sans enzyme de 4 à 17 j. Les digestibilities ont été determinés en utilisant un marquer de cendre insoluble à l'acide à 1.1 % du ration. Des coefficients de corrélation intraclass entre les échantillons de blé en doubles ont suggeré un effet commun du local, mais leurs valeurs faibles ou moderées ont suggeré l'existance de variation soit aléatoire ou du aux conditions unique de culture a l'intérieur du local. Pour les échantillons de blé et d'orge, l'endoit a affecté la valeur alimentaire du céréale et la performance des poulets subséquente. Les cultivars de blé Durum avait des valeurs alimentaires plus elevées que d'autres classes de cultivar avec et sans enzyme et la réponse au supplémentation par enzyme à été faible, vraisembl...

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“…These effects seem to have been found less frequently for laying hens but K ARUNAJEEWA & B AGOT (1977) observed a drop of egg number without decrease of feed consumption with 57 p. 100 barley. G OHL et al (1978) indicate that in Sweden the use of barley is limited to 250 to 350 g/kg in layer diets and showed that the addition on p-glucanase in barley-containing feeds suppresses the appearance of sticky droppings and poor performance, these problems being due to a viscous factor which is hydrolyzed by p-glucanase. These studies suggest a possible mechanism through which barley may have had a deleterious effect in feed 1 of the present work.…”

Section: Introductionmentioning

confidence: 99%

Genotype diet interaction in Fayoumi and Rhode Island Red layers and their crosses

Abdellatif¹,

Bordas²,

Mérat³

1987

Genetics Selection Evolution

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Influence ofβ‐glucanase on feeding value of barley for poultry and moisture content of excreta

Cited by 87 publications

References 13 publications

The relationship between the viscosity of an acid flour extract of barley and its β-glucan content

The relationship between the viscosity of an acid flour extract of barley and its β-glucan content

Effect of cultivar and environment on the feeding value of Western Canadian wheat and barley samples with and without enzyme supplementation

Genotype diet interaction in Fayoumi and Rhode Island Red layers and their crosses

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