Chemical quality, in vitro cellulose digestion, and yield of tall fescue forage affected by mefluidide

1981 ◽  
Vol 29 (6) ◽  
pp. 1158-1161 ◽  
Author(s):  
Scott Glenn ◽  
Barbara Glenn ◽  
Charles E. Rieck ◽  
Donald G. Ely ◽  
Lowell P. Bush
Keyword(s):  
Tall Fescue ◽  
Chemical Quality ◽  
Cellulose Digestion

INFLUENCE OF PHENOLIC ACIDS ON FORAGE STRUCTURAL CARBOHYDRATE DIGESTION

1984 ◽  
Vol 64 (5) ◽  
pp. 50-51 ◽  
Author(s):  
H. G. JUNG ◽  
G. C. FAHEY JR.
Keyword(s):  
Tall Fescue ◽  
Phenolic Acid ◽  
Acid Content ◽  
Coumaric Acid ◽  
Cellulose Digestion ◽  
Hemicellulose Degradation ◽  
Structural Carbohydrate ◽  
Ferulic Acids ◽  
Carbohydrate Digestion

p-Coumaric acid (PCA) and ferulic acid (FA) inhibit cellulose digestion in vitro, whereas PCA stimulates hemicellulose degradation. Acid concentrations increase in tall fescue during maturation but remain stable in alfalfa. Hemicellulose and cellulose digestion by sheep is associated with phenolic acid content of tall fescue but not of alfalfa. Key words: p-Coumaric and ferulic acids, hemicellulose and cellulose digestion

scholarly journals EFFECT OF SULFUR SUPPLEMENTATION ON IN VITRO CELLULOSE DIGESTION AND ON NUTRIENT UTILIZATION AND NITROGEN METABOLISM OF LAMBS FED LOW QUALITY FESCUE HAY

1980 ◽  
Vol 60 (2) ◽  
pp. 337-344 ◽  
Author(s):  
C. M. GUARDIOLA ◽  
G. C. FAHEY Jr. ◽  
J. W. SPEARS ◽  
U. S. GARRIGUS
Keyword(s):  
Amino Acids ◽  
Tall Fescue ◽  
Sodium Sulfate ◽  
Rumen Fluid ◽  
Control Diet ◽  
Nutrient Utilization ◽  
Neutral Detergent Fiber ◽  
Sulfur Source ◽  
Cellulose Digestion

Experiments were conducted to determine the effects of supplementing low quality tall fescue hay, containing 0.26% total sulfur, with an iso-sulfurous quantity of either sodium sulfate or D,L-methionine. In vitro experiments were carried out where rumen fluid was collected from sheep fed a similar low quality tall fescue hay. In experiment 1, the addition of 1% urea to the low quality fescue ration stimulated in vitro cellulose digestion (P <.001). The addition of 0.05%, 0.10% and 0.15% sulfur from either sodium sulfate or methionine also stimulated cellulose digestion (P <.001) with no difference due to sulfur source. In experiment 2, the addition of 0.8% nitrate-N added as potassium nitrate depressed in vitro fescue cellulose digestion (P <.001) regardless of whether the donor sheep were adapted or unadapted to nitrate in the ration. Addition of sulfur appeared to overcome the depression in cellulose digestion due to nitrate. In vivo experiments involved the use of 12 crossbred female lambs (average initial weight, 34 kg) which were randomly assigned to one of three treatments (fescue, no added sulfur; fescue plus 0.15% sulfur as sodium sulfate; and fescue plus 0.15% sulfuras D,L-methionine). After completion of trial 1, lambs were re-randomized and the trial was replicated. Acid detergent fiber (ADF) and neutral detergent fiber (NDF) digestibilities were improved (P <.01) by supplemental sulfur, regardless of sulfur source. Nitrogen retention was not significantly affected by treatment. Essential amino acids, expressed as a percent of the total amino acids, were higher (P <.01) for lambs receiving the 0.15% sulfate-S diet. Molar percentage of methionine was increased (P <.01) by the addition of sulfur to the control diet whereas phenylalanine and glutamine concentrations decreased with sulfur addition. Serum taken from lambs fed 0.15% methionine-S contained more histidine (P <.05) while lambs fed 0.15% sulfate-S had less (P <.05) serum glycine.

Factors Influencing in Vitro Rumen Cellulose Digestion

1956 ◽  
Vol 15 (4) ◽  
pp. 1180-1187 ◽  
Author(s):  
C. N. Huhtanen ◽  
R.F. Elliott
Keyword(s):  
Cellulose Digestion ◽  
Factors Influencing

Activity of tall fescue alkaloids and analogues in in vitro rumen fermentation

1976 ◽  
Vol 24 (4) ◽  
pp. 869-872 ◽  
Author(s):  
Lowell P. Bush ◽  
Harold Burton ◽  
James A. Boling
Keyword(s):  
Tall Fescue ◽  
Rumen Fermentation ◽  
In Vitro Rumen Fermentation

In vitro Technique for Selection of Radiation Induced Mutants of Tall Fescue

2013 ◽  
Vol 19 (1) ◽  
pp. 63-68
Author(s):  
Ki-Won Lee ◽  
Jin Young Moon ◽  
Hee Chung Ji ◽  
Gi Jun Choi ◽  
Ki-Yong Kim ◽  
...  
Keyword(s):  
Tall Fescue ◽  
In Vitro Technique ◽  
Induced Mutants ◽  
Radiation Induced ◽  
Selection Of
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