Nutritive Value of Wet Brewers Grains for Lactating Dairy Cows

Murdock, F.R.; Hodgson, A.S.; Riley, Robert G.

doi:10.3168/jds.s0022-0302(81)82771-3

Cited by 46 publications

(35 citation statements)

References 9 publications

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“…The DM content of BSG was in the range of 20.3% and 22.45%. This was in agreement with the range reported by Murdock et al [29] and Belibasakis and Tsirgogianni [30], who reported DM content ranging from 26% to 18.6%, respectively. No significant differences were found in the CP content between the three BSG varieties.…”

Section: Chemical Compositionsupporting

confidence: 82%

Brewer's spent grain: Characterization and standardization procedure for the enzymatic hydrolysis by Bacillus cereus strain

Kotlar

Belagardi

Roura

2011

Biotech and App Biochem

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An important way to reuse agroindustrial by-products and to produce added-value products consists of the production of protein hydrolysates. In the current study, we used Brewer's spent grain (BSG), mainly because of its availability and cost, as a substrate for the enzymatic hydrolysis by Bacillus cereus. First, the physicochemical and microbiological characterization of BSG batches from three varieties was carried out. Furthermore, the optimal fermentation upstream processes for enzymatic hydrolysis by B. cereus were defined. Finally, the ability of B. cereus to hydrolyze different fractions of BSG was analyzed and possible synergistic effects of this bacterium along with other proteolytic bacteria were also investigated. Results showed that the naturally associated microflora was predominantly thermophilic aerobic bacteria and the drying process was the better alternative for BSG preservation. Water, lipids, and ash content differed significantly among the three varieties; however, no statistically significant differences were found in the protein content among them. After BSG characterization studies, the following protocol was set to obtain the fermentation substrate (FS): drying at 60°C for 24-48 H; sieving, grinding, and polyphenol extraction with an alcohol-water solution; and finally autoclaving. A synergistic effect was observed when B. cereus was inoculated with Pseudomonas strains in FS.

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Section: Chemical Compositionsupporting

confidence: 82%

Brewer's spent grain: Characterization and standardization procedure for the enzymatic hydrolysis by Bacillus cereus strain

Kotlar

Belagardi

Roura

2011

Biotech and App Biochem

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“…The chemical composition of BSG varies according to barley variety, harvest time, malting, and mashing conditions [13]. It is worth noting that Murdock et al [14] reported a BSG with a similar lignin and hemicellulose content of 29.9% and 3.8% (w/w), respectively. Moreover, the high content of other materials, such as proteins and fibers, detected in our study is typical for BSGs, in which those materials account for 20% to 70% of total composition [7].…”

Section: Chemical Pretreatment Of Bsg and Saccharification Of The Prementioning

confidence: 99%

Second Generation Ethanol Production from Brewers’ Spent Grain

et al. 2015

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Ethanol production from lignocellulosic biomasses raises a global interest because it represents a good alternative to petroleum-derived energies and reduces the food versus fuel conflict generated by first generation ethanol. In this study, alkaline-acid pretreated brewers' spent grain (BSG) was evaluated for ethanol production after enzymatic hydrolysis with commercial enzymes. The obtained hydrolysate containing a glucose concentration of 75 g/L was adopted, after dilution up to 50 g/L, for fermentation by the strain Saccharomyces cerevisiae NRRL YB 2293 selected as the best producer among five ethanologenic microorganims. When the hydrolysate was supplemented with yeast extract, 12.79 g/L of ethanol, corresponding to 0.28 g of ethanol per grams of glucose consumed (55% efficiency), was obtained within 24 h, while in the non-supplemented hydrolysate, a similar concentration was reached within 48 h. The volumetric productivity increased from 0.25 g/L·h in the un-supplemented hydrolysate to 0.53 g/L h in the yeast extract supplemented hydrolysate. In conclusion, the strain S. cerevisiae NRRL YB 2293 was shown able to produce ethanol from BSG. Although an equal amount of ethanol was reached in both BSG hydrolysate media, the nitrogen source supplementation reduced the ethanol fermentation time and promoted glucose uptake and cell growth. OPEN ACCESSEnergies 2015, 8 2576

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“…Brewers' grain has been classified as a feed source high in RUDP (Stern and Satter 1984;Cozzi and Polan 1994). WBG has been reported to be equal to or superior to soybean meal as a protein supplement for lactating dairy cows (Murdock et al 1981;West et al 1994) and has been utilized as an energy and protein supplement when available by selected feedlots in western Canada. These characteristics of WBG make it a good choice to use as a standard, to compare the nutritive value of wheat-based WDG.…”

mentioning

confidence: 99%

Evaluation of wheat-based wet distillers' grains for feedlot cattle

Ojowi¹,

McKinnon²,

Mustafa³

et al. 1997

Can. J. Anim. Sci.

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. 1997. Evaluation of wheat-based wet distillers' grains for feedlot cattle. Can. J. Anim. Sci. 77: 447-454. This study was conducted to determine the nutritive value of wheat-based wet distillers' grains (WDG) for ruminants. Chemical composition and in situ rumen degradability characteristics of WDG were compared with wet brewers' grain (WBG). The in situ trial involved three 48 h incubations utilizing one ruminally fistulated cow. Trail 2 compared the value of WDG in growing and finishing rations relative to WBG and a control based on standard feed ingredients. Relative to WBG, WDG had greater (P < 0.05) NDF and ADL and similar ADF and CP levels. Fractionation of CP indicated that WDG contained more (P < 0.05) neutral detergent and less acid detergent insoluble CP than WBG. Effective degradability of DM, CP, NDF and ADF in WDG exceeded (P < 0.05) WBG. Animal performance in the growing period was similar (P > 0.01) among treatments. During the finishing period the control fed steers grew faster (P < 0.05) than WBG fed steers. WDG fed steers exhibited more (P < 0.05) intermuscular fat than control or WBG fed steers and less (P < 0.05) subcutaneous fat than WBG fed steers. It was concluded that WDG is more degradable than WBG and thus cannot be considered as good a source of rumen undegraded protein. WDG can be used effectively as an energy and protein source for growing and finishing cattle. Le fractionnement de la PB révélait que les DDF contenaient plus (P < 0,05) de PB insoluble au détergent neutre et moins de PB insoluble au déter-gent acide que les DBF. La dégradabilité ruminale effective de m.s., de PB, de FDN et de lignocellulose des DDF dépassait (P < 0,05) celle des DBF. Les performances zootechniques observées durant la phase de croissance étaient les mêmes (P > 0,01) dans tous les traitements. Dans la phase de finition, la croissance des bouvillons exposés au régime témoin était plus rapide que chez ceux au régime DBF. Les bouvillons nourris aux drèches de distillerie possédaient plus (P < 0,05) de gras intermusculaire que ceux nourris au régime témoin ou DBF et aussi plus (P < 0,05) de gras sous-cutané que les bouvillons au régime DBF. Les drèches de distillerie paraissent être plus dégradables dans le rumen que les drèches de brasserie et, pour cette raison, ne peuvent être considérées comme une bonne source de protéines digestibles dans l'intestine. Elles constituent toutefois un aliment énergétique et protéique efficace pour les bouvillons en croissance et en finition.

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Nutritive Value of Wet Brewers Grains for Lactating Dairy Cows

Cited by 46 publications

References 9 publications

Brewer's spent grain: Characterization and standardization procedure for the enzymatic hydrolysis by Bacillus cereus strain

Brewer's spent grain: Characterization and standardization procedure for the enzymatic hydrolysis by Bacillus cereus strain

Second Generation Ethanol Production from Brewers’ Spent Grain

Evaluation of wheat-based wet distillers' grains for feedlot cattle

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