Fumaric Acid Production by Rhizopus oryzae on Corn Distillers` Grains with Solubles

2008 ◽  
Vol 3 (1) ◽  
pp. 35-40 ◽  
Author(s):  
Thomas P. West .
Keyword(s):  
Fumaric Acid ◽  
Acid Production ◽  
Rhizopus Oryzae ◽  
Distillers Grains ◽  
Distillers Grains With Solubles ◽  
Corn Distillers

scholarly journals Effect of sample size on kinetic parameters of roughage and concentrated feeds by a semi-automated in vitro gas production system

2020 ◽  
Vol 41 (1) ◽  
pp. 255
Author(s):  
Mariane Moreno Ferro ◽  
Luciano da Silva Cabral ◽  
Livia Vieira de Barros ◽  
Claudio Vieira de Araujo ◽  
Nelcino Francisco de Paula
Keyword(s):  
Cottonseed Meal ◽  
Soybean Meal ◽  
Gas Production ◽  
Corn Silage ◽  
Distillers Grains ◽  
Napier Grass ◽  
Distillers Grains With Solubles ◽  
Grass Silage ◽  
Corn Distillers ◽  
Castor Meal

This study aimed to evaluate the effect of different amounts of incubated samples on the kinetic parameters of in vitro fermentation of roughage and concentrated food used for feeding ruminants. Samples were prepared using 200, 300, 400, and 500 mg of air-dried roughage and concentrated sample, ground to 1 mm, and placed in 120 mL glass flasks. Next, inoculum and McDougal solution were added, and the readings were obtained using a semi-automated pressure transducer up to 96 h after the beginning of the incubations. Gas production of the non-fibrous fraction increased linearly (P < 0.05) for sugarcane, Marandu grass silage, corn silage, dried corn distillers’ grains with solubles, dried brewer’s yeast, bean residue, wet brewer’s grains, sunflower meal, and Jatropha meal; quadratically (P < 0.05) for Napier grass silage and cottonseed meal; and cubically (P < 0.05) for castor meal and soybean meal. The degradation rate of the non-fibrous fraction reduced linearly (P < 0.05) for sugarcane, Napier grass silage, and castor meal; quadratically (P < 0.05) for Marandu grass silage; and cubically (P < 0.05) for corn silage, soybean meal, dried corn distillers’ grains with solubles, bean residue, and cottonseed meal. Gas production of the fibrous fraction increased linearly (P < 0.05) for Napier grass silage, Marandu grass silage, corn silage, dried corn distillers’ grains with solubles, bean residue, wet brewer’s grain, cottonseed meal, and sunflower meal; quadratically ( < 0.05) for Jatropha meal; and cubically (P < 0.05) for sugarcane, castor meal, and soybean meal. The degradation rate of the fibrous fraction increased linearly (P < 0.05) for Napier grass silage, dried corn distillers’ grains with solubles, dried brewer’s yeast, wet brewer’s grains; quadratically (P < 0.05) for corn silage and castor meal; and cubically (P < 0.05) for sugarcane, Marandu grass silage, and bean residue. The lag time reduced linearly (P < 0.05) for castor meal and dried corn distillers’ grains with solubles; quadratically (P < 0.05) for Napier grass silage; and cubically (P < 0.05) for sugarcane, Marandu grass silage, corn silage, soybean meal, bean residue, cottonseed meal, sunflower meal, and Jatropha meal. Thus, our findings suggest that the kinetic parameters of in vitro fermentation were affected as a function of the amount of incubated sample.

COMPARISON OF DISTILLERS GRAINS WITH SOLUBLES FROM RYE AND CORN IN PRODUCTION AND DIGESTIBILITY TRIALS WITH LACTATING COWS AND SHEEP

1986 ◽  
Vol 66 (4) ◽  
pp. 1003-1008 ◽  
Author(s):  
J. A. SHELFORD ◽  
R. M. TAIT
Keyword(s):  
Dry Matter ◽  
Protein Digestibility ◽  
Milk Composition ◽  
Period Change ◽  
Distillers Grains ◽  
Fiber Digestion ◽  
Distillers Grains With Solubles ◽  
Lactating Cows ◽  
Complete Diet ◽  
Corn Distillers

Dehydrated rye distillers grains with solubles or corn distillers grains with solubles were incorporated into dairy concentrate mixes at the level of 15%. These concentrates were then fed along with alfalfa cubes in a 50/50 mix (as-fed basis) to 18 lactating dairy cows in a two 6-wk period change over design. Feed intake, milk yield, milk composition and body weight change data indicated no difference between types of distillers grains. Total collection digestibility studies conducted during the last week of each period with six animals per treatment indicated no difference between the type of distillers grains in dry matter, protein or fiber digestion. Total collection digestibility studies using six mature ewes per treatment indicated no differences in dry matter, organic matter or protein digestibility when determined for the concentrates containing rye distillers grains (RDG) or corn distillers grains (CDG) fed in the dairy production trial. Acid detergent fiber digestibility was significantly lower (P < 0.01) on the RDG diet. Digestibility by difference was used to compare RDG and CDG when they made up 70% of the diet. RDG had significantly lower (P < 0.01) digestibilities of dry matter, energy (12.2 vs. 17.1 MJ digestible energy kg−1 dry matter), protein and fiber. The influence of the lower digestibility of RDG was masked in the concentrate mix and complete diet fed to the lactating cows due to dilution from other ration components. Rye distillers grains plus solubles can replace corn distillers grains in dairy concentrates at the level of 15% with no effects on dairy cow production. Key words: Rye distillers grains, sheep, dairy cattle

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