The volatility of components of grass silage on oven drying and the inter-relationship between dry-matter content estimated by different analytical methods

2001 ◽  
Vol 56 (4) ◽  
pp. 405-411 ◽  
Author(s):  
M. G. Porter ◽  
R. S. Murray
Keyword(s):  
Analytical Methods ◽  
Dry Matter ◽  
Matter Content ◽  
Dry Matter Content ◽  
Oven Drying ◽  
Grass Silage

Further studies on the fattening value of grass silage and on the effect of the dry-matter percentage of the diet on dry-matter intake in ruminants

1954 ◽  
Vol 44 (4) ◽  
pp. 383-393 ◽  
Author(s):  
T. L. Dodsworth
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Live Weight ◽  
Matter Content ◽  
The Other ◽  
Dry Matter Intake ◽  
Dry Matter Content ◽  
Feeding Trial ◽  
Grass Silage ◽  
Weight Gains

1. A feeding trial is described including four groups of cattle fed on silage only, two mixtures of silage and roots, and roots, straw, hay and oats.2. The live-weight gains made are recorded together with the rate of dry-matter intake.3. The efficiency of the dry matter of the diets was calculated.4. Silage fed alone produced a significantly greater rate of fattening than the other three diets.5. Cattle receiving roots in the morning and silage at night consumed 10·78% more dry matter and made greater live-weight gains than cattle fed on silage in the morning and roots at night.6. Calculation of the starch values of the roots and silage showed that these are higher when fed together than when silage is fed alone or when roots are fed with straw, hay and oats.7. An experiment is described designed to determine the effect of the dry-matter percentage of the diet on dry-matter intake in ruminants and of sudden changes in dry-matter content on digestibility.8. Sheep receiving 19·46% dry-matter silage consumed 16·7% more dry matter and 19·8% more starch equivalent than sheep eating 15·85% dry-matter silage.9. When the dry-matter percentage of the silage fell from 19·46 to 15·77 the digestibility of the dry matter fell by over 10%.10. The starch equivalent of the silage when fed alone was determined from the results of a digestibility trial and according to the performance of the cattle in the feeding trial. The values found were 65·88 and 66·15% respectively.11. The losses suffered in silage-making in twentyfive silos are recorded and discussed. The loss of dry matter and crude protein both average approximately 40% of that ensiled. The need for finding methods of reducing these losses is again stressed.

scholarly journals Murumuru (Astrocaryum murumuru) meal as an additive to elephant grass silage

2020 ◽  
Vol 33 (4) ◽  
pp. 264-272
Author(s):  
Cláudia M Serra-Ferreira ◽  
Agatha G Farias-Souza ◽  
Rita C Almeida-Mendonça ◽  
Melany Simões-Souza ◽  
Wagner R L Lopes-Filho ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Moisture Content ◽  
Dry Matter ◽  
Matter Content ◽  
Dry Matter Content ◽  
Elephant Grass ◽  
High Moisture Content ◽  
High Moisture ◽  
Grass Silage ◽  
Aerobic Stability

Background: Tropical grasses, such as elephant grass, have high moisture content during its ideal phenological state for silage. High moisture content hinders proper preservation and reduces the nutritive value of silage due to secondary fermentation and production of effluents. Adding feed materials with high dry matter content, such as murumuru (Astrocaryum murumuru) meal, is a potential alternative to improve silage yield. Objective: To determine the effects of including murumuru meal (0, 7, 14, 21, and 28%) on the fermentative characteristics, microbiological activity, aerobic stability, and chemical composition of elephant grass silages. Methods: A completely randomized design with five treatments and five replicates was used. Elephant grass was collected at 60 d of age, minced, and homogenized with murumuru meal. The mass was placed in experimental 15-L silos. The silos were collected and analyzed 45 d later. Results: Effluent production decreased (p<0.05) as the proportions of murumuru meal in silage increased. A quadratic effect (p<0.05) was observed on dry matter recovery. An increase (p<0.05) was observed in dry matter content, a decrease (p<0.05) in the neutral detergent fiber content, and an increase (p<0.05) in the non-fibrous carbohydrate content with the inclusion of murumuru meal. Conclusions: Addition of murumuru meal improves chemical composition and does not affect the fermentative characteristics of elephant grass silage, while it reduces effluent losses. Nevertheless, the inclusion of murumuru meal in the elephant grass silage decreased the time of aerobic stability.

Effect of alfalfa grass silage dry matter content on ruminal digestion and milk production in lactating dairy cows

1991 ◽  
Vol 71 (2) ◽  
pp. 457-467 ◽  
Author(s):  
C. P. Campbell ◽  
J. G. Buchanan-Smith
Keyword(s):  
Protein Degradation ◽  
Dry Matter ◽  
Milk Protein ◽  
Latin Square ◽  
Matter Content ◽  
Holstein Cows ◽  
Dry Matter Content ◽  
Grass Silage ◽  
Randomized Design ◽  
Protein Degradability

In trial one, seven lactating Holstein cows fitted with rumen cannulae were used in a replicated 3 × 3 Latin square design to investigate the effect of feeding alfalfa/grass ensiled at three dry matter (DM) levels (27.5, 46.1 and 56.4%) on the rate and extent of protein degradation. Cows were fed a total mixed ration of 70% alfalfa/grass silage, at one of three DM levels, and 30% concentrate (high moisture corn and mineral) (DM basis). Silage samples were incubated in sacco in the rumen for up to 48 h to model disappearance of DM, neutral detergent fibre (NDF) and nitrogen (N). Passage rates of silage, using Cr-mordanted NDF, were determined for small and total particulate fractions. Rates of DM, NDF and N disappearance, as well as rates of passage were unaffected by silage DM content. The 27% DM silage contained a larger soluble N fraction, but a smaller fraction of potentially digestible N than either the 46 or 56% DM silages. Estimates of effective protein degradability corrected for microbial contamination of digesta residues, for the 27, 46 and 56% DM silages were 75.8, 71.2 and 65.0%, respectively. In a second trial, 30 Holstein cows in mid-lactation were fed the same silages as in trial 1 using a completely randomized design. Milk protein percent and yield were higher (P < 0.05) for cows fed the 56% DM silage than those fed the 27 or 46% DM silages. Wilting alfalfa/grass silages prior to ensiling decreased estimated net ruminal silage protein degradation, which was associated with improved milk protein yield. Key words: Alfalfa silage, dry matter, protein, degradability, dairy cow

LEGUME-GRASS SILAGE AS A ROUGHAGE FOR THE PREGNANT EWE

1958 ◽  
Vol 38 (2) ◽  
pp. 200-207
Author(s):  
G. M. Carman ◽  
W. J. Pigden ◽  
S. R. Haskell ◽  
K. A. Winter
Keyword(s):  
Dry Matter ◽  
Matter Content ◽  
Dry Matter Content ◽  
Weight Changes ◽  
Grass Silage ◽  
Weight Losses ◽  
Pregnant Ewe

Four rations with the roughage consisting of silage alone, two-thirds silage and one-third hay, one-third silage and two-thirds hay, and hay alone, were fed to pregnant ewes during the three successive winter periods, 1955, 1956, and 1957. All groups received 0.9 lb. grain per ewe per day during the last 6 weeks prior to lambing.In 1957, when the dry matter content of the silage was only 21.4 per cent, the weight losses of the ewes were high and varied directly with the amount of silage fed. In 1955 and 1956, the weight changes were comparable to those in the hay-fed groups. Silage feeding had no effect on birth weights, 28-day weights, or weaning weights of the lambs, and ewe fleece weights were not affected.At birth 75 per cent of the lambs from the silage lots graded good or better, while 97 per cent of those whose dams were fed hay alone fell in these categories. Seventy per cent of the lambs born to silage-fed ewes survived to weaning compared with eighty-eight per cent of the lambs from the hay-fed group. Some of the ewes on grass silage lacked sufficient milk to support their lambs for a period of two weeks after lambing. T.D.N. intakes of the ewes on the rations containing silage alone and two-thirds silage, one-third hay were below the levels recommended in recognized feeding standards.

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