In sacco degradation of dry matter and nitrogen in oven dried and fresh tropical grasses and some relationships to in vitro dry matter digestibility

1993 ◽  
Vol 40 (2-3) ◽  
pp. 191-205 ◽  
Author(s):  
J.D. Kabuga ◽  
C.A. Darko
Keyword(s):  
Dry Matter ◽  
Tropical Grasses ◽  
Dry Matter Digestibility ◽  
In Sacco

Degradability and digestibility of full-fat soybeans treated with different sugar and heat combinations

1999 ◽  
Vol 79 (2) ◽  
pp. 213-220 ◽  
Author(s):  
Hélène V. Petit ◽  
Gaëtan F. Tremblay ◽  
Michèle Marcotte ◽  
Richard Audy
Keyword(s):  
Protein Fraction ◽  
Dry Matter ◽  
Heating Time ◽  
Sugar Solution ◽  
High Fructose Corn Syrup ◽  
Dry Matter Digestibility ◽  
High Fructose ◽  
Sugar Addition ◽  
In Sacco

Two experiments were conducted to study the effects of different combinations of sugars and heating time and temperature on the ruminal undegradable protein fraction and DM digestibility of full-fat soybeans. In the first experiment, the influence of sugar addition before heating (none, soaked in either a high fructose corn syrup [HFCS] solution, lignosulfonate or molasses), micronization temperatures (100, 110, 120, and 130 °C), and temperature holding times (0, 30, 60, and 120 min) was examined in a 4 × 4 × 4 factorial arrangement of treatments. In the second experiment, the effect of heating in a sugar solution was studied in a 4 × 2 × 4 factorial design with four sugar treatments (none, soaked either in fructose, molasses or a high xylose product), two soaking temperatures (100 and 120 °C), and four soaking times (0, 60, 120, and 240 min). In vitro dry matter digestibility (IVDMD), in vitro ruminal undegradable protein (RUP), and in sacco RUP were measured. In the first experiment, increased temperatures and heating to 120 min resulted in an increased RUP fraction of full-fat soybeans with no effect on DM digestibility, relative to when no sugar or fructose was added. There was a decrease in digestibility with increased temperature when lignosulfonate or molasses was added and with increased heating time when lignosulfonate was added. In the second experiment where soaking in sugar and heating were done simultaneously, lignosulfonate increased the RUP of soybeans without affecting its digestibility but values were numerically lower than when soaking and micronizing were conducted in two different steps as performed in the first experiment. Key words: protein, degradability, digestibility, micronization

Effect of stage of harvest on the yield, chemical composition, in vitro and in sacco digestibility of hybrid napier (Penniserum purpureum) variety APB N1

2017 ◽  
Author(s):  
K. Sridhar ◽  
C. H. Jagadeesh ◽  
Y. Ramana Reddy ◽  
D. Nagalakshmi ◽  
M. Mahender ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Crude Protein ◽  
Dry Matter ◽  
Crude Fibre ◽  
Dry Matter Digestibility ◽  
Nitrogen Free Extract ◽  
Extract Content ◽  
Green Fodder ◽  
In Sacco

APBN1, a variety of hybrid napier was analysed at five stages of harvest (30, 40, 45, 50 and 60 days) for yield, leaf to stem ratio, chemical composition, in vitro dry matter digestibility, in sacco dry matter and protein degradation to find out optimum stage of harvesting. The yield of green fodder, dry matter (DM) and crude protein (CP) (MT/ ha/year) of forage harvested at 30, 40, 45, 50 and 60 days of growth ranged from 274.68 to 387.95, 47.35 to 98.81, 7.44 to 11.45, respectively. Highest (P less than 0.05) CP yield (11.45 MT/ha) and nitrogen free extract content (46.12%) was observed at 45 d of growth. Crude protein (15.72 to 11.34%), ether extract (3.65 to 2.26%) decreased, whereas total ash (10.88 to 13.86%), crude fibre (23.81 to 29.88%) and acid insoluble ash (3.92 to 5.14%) levels increased when forage was allowed to grow from 30 to 60 d. Similarly, NDF, ADF, hemicellulose, cellulose, lignin and silica levels also increased gradually as plant matures. The in vitro dry matter digestibility was maximum (57.87%) at 30 d and minimum (51.40%) at 60 d of growth. Effective dry matter and protein degradability decreased from 55.80 to 43.78 and from 38.30 to 33.17 per cent, respectively as plant matured from 30 to 60 days. The insoluble but degradable protein fraction ‘b’ was highest (77.07%) at 45 d of growth. Based on the biomass yield, leaf to stem ratio, chemical, in vitro and in sacco evaluation, the optimum stage of harvesting for APBN1 forage was found to be at 45 d of growth.

In sacco dry matter and nitrogen degradation and their relationship with in vitro dry matter digestibility of Napier grass (Pennisetum purpureum Schumach.) as influenced by height of plant at cutting

2002 ◽  
Vol 53 (1) ◽  
pp. 7 ◽  
Author(s):  
Tessema Zewdu ◽  
Robert Baars ◽  
Alemu Yami ◽  
Dawit Negassa
Keyword(s):  
Dry Matter ◽  
Block Design ◽  
Factorial Experiment ◽  
Napier Grass ◽  
Pennisetum Purpureum ◽  
Dry Matter Digestibility ◽  
Bacterial Inoculum ◽  
And Storage ◽  
In Sacco

In vitro dry matter digestibility (IVDMD) as well as in sacco rumen dry matter degradability (DMD) and nitrogen degradability (ND) studies of Napier grass (Pennisetum purpureum) were carried out using a 3 3 factorial experiment arranged in a randomised complete block design with 3 replications. The treatments were 3 levels of nitrogen (N) fertiliser (0, 46, bacterium Synergistes jonesii is known to degrade these compounds and inoculation of the bacterium into the rumen protects cattle against mimosine and DHP toxicity. We report on the development, production, and storage of an in vitro, fermentor-based, mixed bacterial inoculum, which includes S. jonesii, for administration to cattle. This technique may be applicable to the production and delivery of other live, anaerobic, bacterial inocula for use in animal agriculture.

The role of silicon in forages: A quantitative X-Ray study

1987 ◽  
Vol 45 ◽  
pp. 416-417
Author(s):  
Janet H. Woodward ◽  
D. E. Akin
Keyword(s):  
Sodium Acetate ◽  
Dry Matter ◽  
Acetate Buffer ◽  
Plant Tissues ◽  
Sodium Acetate Buffer ◽  
X Ray ◽  
Dry Matter Digestibility ◽  
Percent Composition

Silicon (Si) is distributed throughout plant tissues, but its role in forages has not been clarified. Although Si has been suggested as an antiquality factor which limits the digestibility of structural carbohydrates, other research indicates that its presence in plants does not affect digestibility. We employed x-ray microanalysis to evaluate Si as an antiquality factor at specific sites of two cultivars of bermuda grass (Cynodon dactvlon (L.) Pers.). “Coastal” and “Tifton-78” were chosen for this study because previous work in our lab has shown that, although these two grasses are similar ultrastructurally, they differ in in vitro dry matter digestibility and in percent composition of Si.Two millimeter leaf sections of Tifton-7 8 (Tift-7 8) and Coastal (CBG) were incubated for 72 hr in 2.5% (w/v) cellulase in 0.05 M sodium acetate buffer, pH 5.0. For controls, sections were incubated in the sodium acetate buffer or were not treated.

Divergent Selection for In Vitro Dry Matter Digestibility in Smooth Bromegrass 1

Crop Science ◽  
1986 ◽  
Vol 26 (6) ◽  
pp. 1123-1126 ◽  
Author(s):  
N. J. Ehlke ◽  
M. D. Casler ◽  
P. N. Drolsom ◽  
J. S. Shenk
Keyword(s):  
Dry Matter ◽  
Divergent Selection ◽  
Smooth Bromegrass ◽  
Dry Matter Digestibility ◽  
Selection For

scholarly journals Application of Selected Inoculant Producing Antifungal and Fibrinolytic Substances on Rye Silage with Different Wilting Time

Processes ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 879
Author(s):  
Seong-Shin Lee ◽  
Jeong-Seok Choi ◽  
Dimas Hand Vidya Paradhipta ◽  
Young-Ho Joo ◽  
Hyuk-Jun Lee ◽  
...  
Keyword(s):  
Lactobacillus Plantarum ◽  
Dry Matter ◽  
Lactobacillus Brevis ◽  
Neutral Detergent Fiber ◽  
Dry Matter Digestibility ◽  
Fiber Digestibility ◽  
Aerobic Stability ◽  
Commercial Inoculant

This research was conducted to determine the effects of selected inoculant on the silage with different wilting times. The ryes were unwilted or wilted for 12 h. Each rye forage was ensiled for 100 d in quadruplicate with commercial inoculant (Lactobacillus plantarum sp.; LPT) or selected inoculant (Lactobacillus brevis 100D8 and Leuconostoc holzapfelii 5H4 at 1:1 ratio; MIX). In vitro dry matter digestibility and in vitro neutral detergent fiber digestibility were highest in the unwilted MIX silages (p < 0.05), and the concentration of ruminal acetate was increased in MIX silages (p < 0.001; 61.4% vs. 60.3%) by the increase of neutral detergent fiber digestibility. The concentration of ruminal ammonia-N was increased in wilted silages (p < 0.001; 34.8% vs. 21.1%). The yeast count was lower in the MIX silages than in the LPT silages (p < 0.05) due to a higher concentration of acetate in MIX silages (p < 0.05). Aerobic stability was highest in the wilted MIX silages (p < 0.05). In conclusion, the MIX inoculation increased aerobic stability and improved fiber digestibility. As a result of the wilting process, ammonia-N in silage decreased but ruminal ammonia-N increased. Notably, the wilted silage with applied mixed inoculant had the highest aerobic stability.

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