Palatability to sheep of the Eragrostis curvula complex. 4. Dry matter production, feed value and persistence of a range of taxa

1989 ◽  
Vol 29 (4) ◽  
pp. 533 ◽  
Author(s):  
WH Johnston
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Wagga Wagga ◽  
Eragrostis Curvula ◽  
Matter Production ◽  
Eastern Australia ◽  
Acid Detergent Fibre ◽  
Nitrogen Concentrations ◽  
Feed Value ◽  
Nitrogen Contents

Productivity, nutritive value and persistence of a range of taxa of Eragrostis curvula complex were evaluated in experiments at Wagga Wagga, Temora, Condobolin and Orange, N.S.W. No relationships were found between previously determined palatability ranks and nitrogen (N) content, acid detergent fibre, digestible dry matter (DDM) or metabolisable energy. The nutritive value of stem was lower than leaf; however, if stem is well grazed this is unlikely to affect animal performance. Mean digestible dry matter and nitrogen contents of the E. curvula accessions were similar in the Wagga Wagga (a total of 8 determinations) and Orange (4 determinations) experiments (overall means, DDM = 57.48% and N = 1.65%), but digestibility was depressed in summer by 3.38 units (54.85 v. 58.23% in autumn) for leaf and 2.3 units (53.98 v. 56. 28%) for stem in the Orange experiment, and 4.68 units (56.43 v, 61.11% in spring) for leaf and 8.35 units (49.96 v. 58.31%) for stem in the Wagga Wagga Naturalised Accessions trial. In practice, this would be offset by increasing availability of palatable forage. Except for 1 occasion with stem, the nitrogen concentrations of the herbage (leaf N 2.02-1.45%, stem N 0.79-1.95%) were sufficient not to limit intake. Differences in persistence and dry matter yield indicated that, of the palatable lines, accession 4663 was better adapted to drier situations than 4650, and that accession 4660 was intermediate between the two. It is concluded that the palatable accessions were potentially useful pasture plants for south-eastern Australia.

Persistence and productivity of Trifolium ambiguum M. Bieb. (Caucasian clover) in a high altitude region of south-eastern Australia

1985 ◽  
Vol 25 (1) ◽  
pp. 124 ◽  
Author(s):  
BS Dear ◽  
M Zorin
Keyword(s):  
Dry Matter ◽  
Experimental Period ◽  
Leaf Nitrogen ◽  
First Year ◽  
Trifolium Ambiguum ◽  
Pasture Legumes ◽  
Matter Production ◽  
Eastern Australia ◽  
Nitrogen Contents ◽  
Leaflet Shape

The persistence and productivity of 12 lines of Trifolium ambiguum M. Bieb., encompassing three ploidy groups, and one line of T. montanum subsp. hurnboldtianum were compared in an elevated environment (1150 m) over a 4-year period with one cultivar each of T. repens L. and T. pratense L. Trifolium ambiguum was found to be well adapted to the cold winters and dry summers, all lines persisting throughout the experimental period, whereas the T. repens and T. pratense cultivars disappeared by the fourth year. The T. arnbiguum lines 'Monaro' and 'Kirovakan' (both hexaploid) and 'Alpine' and Forest (diploids) had the highest dry matter production. The control cultivars of T. repens and T. pratense outyielded T. ambiguum in the first year but were substantially less productive in later years as their density declined. T. montanum persisted but produced less dry matter than T. ambiguum and did not produce rhizomes or daughter plants. Ploidy of T. ambiguum was found to affect the date of flowering, persistence, leaflet shape and leaflet area. Productivity was not closely related to ploidy; however, the two most productive lines were hexaploids. All the T. ambiguum lines remained well nodulated over the 4 years, but the diploids had higher leaf nitrogen contents than the other two groups (3.4% vs. 2.5 and 2.4% N). The number of daughter plants produced was positively correlated (r=0.84) with rhizome length, which varied between lines but was not influenced by ploidy. Two bred lines, 'Alpine' (diploid) and 'Monaro' (hexaploid) exhibited superior vigour and spreading ability and warrant further evaluation as possible pasture legumes.

scholarly journals Forage yield and nutritive value of hay from sorghum-sudangrass hybrids

2020 ◽  
Vol 9 (11) ◽  
pp. e95991110508
Author(s):  
Hosnerson Renan de Oliveira Santos ◽  
Mauro Pereira de Figueiredo ◽  
Ingrid Thalia Prado de Castro ◽  
Mário Henrique Melo e Lima ◽  
Luiza Maria Gigante Nascimento ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Forage Yield ◽  
Neutral Detergent Fiber ◽  
Mineral Matter ◽  
Matter Production ◽  
Green Matter ◽  
Sorghum Sudangrass ◽  
High Forage

The objective was to evaluate agronomically nine sorghum-sudangrass hybrids (Sorghum bicolor × Sorghum sudanense) and the nutritive value of their respective hays. The experimental design used was randomized blocks in a 3 × 9 factorial scheme, with three replications. Three cuts were made: 42 days after germination, 29 days after regrowth, and 28 days after the second regrowth. All hybrids showed a higher number of plants ha–1 (P < 0.05) in the second cut. For the green matter and dry matter production of the hays, the values ranged from 49.16 to 62.07 t ha–1 and 9.07 to 11.43 t ha–1, respectively. There were no differences (P > 0.05) in dry matter, mineral matter, or ether extract. The hybrids 1013020, BRS 810, 1013016, and 1624F016 showed higher values of crude protein (CP) of 16.49, 16.17, 16.08, and 15.88%, respectively. Differences were observed (P < 0.05) in neutral detergent fiber (NDF) content. The hybrids 1013020, BRS 802, 1013021, 1013016, BRS 810, and 1624F006 presented lower levels of NDF (60.57, 60.74, 62.15, 62.37, 62.58, and 64.70%, respectively). The hybrids BRS 802, 1013016, BRS 810, and 1624F006, stood out above the others, presenting high forage yield and adequate nutritive value (CP content >13% and NDF content <65%).

Influence of maturity stage on in situ dry matter degradability of six maize varieties in fistulated sheep

2001 ◽  
Vol 2001 ◽  
pp. 89-89
Author(s):  
M. A. Akbar ◽  
P. Lebzien ◽  
G. Flachowsky
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Climatic Conditions ◽  
Maturity Stage ◽  
Factors Affecting ◽  
Maize Varieties ◽  
Feed Value ◽  
Two Stages

The fresh weight, dry matter (DM) contents and nutritional quality in maize vary considerably with variation in varieties, stages at which harvested, climatic conditions and agronomic factors. Recently, agronomists, nutritionists, and dairy producers have placed increased emphasis on factors affecting the nutritive value of maize. However, very little information is available on quantitative variability of the feed value of maize fodder as affected by such factors. This study was, therefore, carried out to assess the effect of harvesting of six different maize varieties at two stages (dates) of grain maturity on quality of both the stover and cobs.

High-moisture alfalfa hay conserved with a mixture of Pediococcus pentosaceus and chitinase has a similar feed value to that conserved at optimal moisture

2020 ◽  
Vol 100 (2) ◽  
pp. 381-384
Author(s):  
L. Jin ◽  
E. Chevaux ◽  
T. McAllister ◽  
J. Baah ◽  
P. Drouin ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Growth Performance ◽  
Dry Matter ◽  
High Moisture ◽  
Pediococcus Pentosaceus ◽  
Neutral Detergent Fibre ◽  
Nutrient Digestion ◽  
Alfalfa Hay ◽  
Acid Detergent Fibre ◽  
Feed Value

Two separate experiments were conducted to compare the nutrient digestion and growth performance of beef cattle fed diets containing up to 77% of two conserved alfalfa hays. The two alfalfa hays were baled either at the optimum moisture (8.6%) or at a higher-than optimum moisture (21.4%) with application of a mixture of Pediococcus pentosaceus and chitinase at baling. Digestibility of dry matter, neutral detergent fibre, acid detergent fibre, rumen parameters, and growth performance were similar (P ≥ 0.16) for cattle fed either diet. A combination of P. pentosaceus and chitinase has the potential to preserve high-moisture alfalfa hay.

The cellulose-lignin complex in forages and its relationship to forage nutritive value

1970 ◽  
Vol 74 (1) ◽  
pp. 23-36 ◽  
Author(s):  
D. W. Allinson ◽  
D. F. Osbourn
Keyword(s):  
Growth Phase ◽  
Dry Matter ◽  
Nutritive Value ◽  
Lignin Content ◽  
Italian Ryegrass ◽  
Difference Spectra ◽  
Dry Matter Digestibility ◽  
Lignin Fraction ◽  
Acid Detergent Fibre ◽  
Cellulose Digestibility

SUMMARYThe relationships between the cellulose-lignin complex, voluntary consumption and dry-matter digestibility were examined using forages of two varieties of Italian ryegrass and two legumes, lucerne and sainfoin. These forages had previously been shown to exhibit different intake-digestibility relationships. The cellulose, acid detergent lignin and acid detergent fibre contents of these forages as well as their digestibility coefficients were determined. Lignins were extracted from the fibre fractions and their ultraviolet difference spectra determined.Changes in maturity of a forage during a single growth phase, produced changes in dry-matter digestibility which were closely associated with changes in the digestibility of the cellulose and inversely related to the lignin content of the forage. Differences in digestibility between varieties of forage were less closely associated with lignin content. As the grasses matured a lignin fraction forming a difference peak at 350 mμ became evident and this was associated with decreased cellulose digestibility.Differences in voluntary food consumption resulting from changes in maturity of a single forage variety, in one growth phase, were also closely correlated with both dry matter and cellulose digestibility and inversely with lignin content. Differences between varieties and growth phases of the ryegrasses and between grasses and legumes were related less to the nature of the cellulose-lignin complex and more closely to the percentage of the total digesta deriving from cellulose.Sainfoin was characterized by the formation post-ruminally of an artifact that analysed quantitatively as lignin and qualitatively resembled a non-conjugated phenolic lignin fraction. The production of this artifact apparently disturbed fibre digestibility estimates and may have affected dry-matter digestibility estimates. Degradation of lignin apparently occurred both in the rumen and in the hind gut.

scholarly journals Forages resources in "dehesa" systems: fertilization, tillage, and forage sowing. 2. Productivity and use of rain water

2003 ◽  
Vol 1 (1) ◽  
pp. 35
Author(s):  
J.L. Martin Polo ◽  
C.J. Valle Gutierrez ◽  
A. Blanco de Pablos ◽  
M.E. Sánchez Rodríguez
Keyword(s):  
Primary Production ◽  
Dry Matter ◽  
Nutritive Value ◽  
Rain Water ◽  
The Other ◽  
Dry Matter Production ◽  
Matter Production ◽  
Economic Studies ◽  
Different Soils

In two «dehesa» grasslands with different soils, one over slate and the other over granite, studies were carried out toinvestigate the influence that phosphoric fertilization, surface tillage of pastures and oat sowing have on the primaryproduction and its nutritive value, on the index of utilization of raining water, and on the evolution of oat stubble withtime. Additionally, economic studies of the previous results have been carried out. Phosphoric fertilization and superficialtilling of pastures did not have a relevant influence on the primary production. Additionally, in the successive regrowthover oat stubble there was no response to phosphoric fertilization. The production increments with respect tocontrols are related to the preparatory tillage for sowing the oats, and the changes that the vegetation experimented.This effect decreased with time. The dry matter production in the oat treatments was higher than in the pastures, bothin slate and granite soils. In dehesa systems the use of raining water for the production of 1 kg dry matter ha-1 was verylow, and, on the average, 0.278 and 0.588 l m-2 were needed in pastures, but this amount decreased significantly in theoats: 0.059 and 0.110 l m-2 in slates and granites, respectively; with better use of the water in the more fertile soils. Theeconomic response to the oat sowing was about 252 and of 160 euros ha-1 year-1 in slates and granites, but there was noeconomic response to the fertilization and superficial tilling of pastures during the period of the experiment.

Linear and quadratic models as predictors of dry matter production and nutritive value of pastures located in the central plateau of Mexico

2009 ◽  
Vol 2009 ◽  
pp. 159-159
Author(s):  
A A Rayas-Amor ◽  
P Dorward ◽  
T Rehman ◽  
F L Mould ◽  
O A Castelan-Ortega
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Production Costs ◽  
Grass Species ◽  
Sample Analysis ◽  
Central Plateau ◽  
Matter Production ◽  
Resource Poor ◽  
The Cost ◽  
Quadratic Models

Approximately 80% of all production costs are related to the purchase of forages and other feeds in dairy enterprises in Mexico. Resource poor, smallholder (campesino) systems are heavily reliant on the use of maize stover, noncultivated/cultivated grass species and weeds to feed their dairy cattle, thus a nutritional understanding of local forage resources would be of considerable economic benefit. The objective of this study was to develop predictive models of herbage production and nutrient composition of four non-cultivated pastures (NcP), in order to minimise the cost of sample analysis and improve the utilisation of local forage resources in dairy enterprises.

scholarly journals The Effects of Nitrogen Source on Nutritive Value of Irrigated Silage Corn

2017 ◽  
Vol 9 (1) ◽  
pp. 116-123 ◽  
Author(s):  
Seyfollah FALLAH ◽  
Solmaz NEISANI
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Linear Trend ◽  
Mineral Fertilizer ◽  
Application Rate ◽  
N Fertilization ◽  
Broiler Litter ◽  
Urea Fertilizer ◽  
Matter Production

Nitrogen is considered one of the most important nutrients affecting yield and quality of maize forage (Zea mays L.). A two-year field experiment was carried out to evaluate the effects of broiler litter and mineral fertilizer on dry matter production and silage quality of corn. The applied treatments were: unfertilized (control), 100, 200 and 300 kg ha-1 in the form of urea fertilizer (217, 434, and 651 kg urea ha-1, respectively) and 100, 200 and 300 kg ha-1 in the form of broiler litter (7142, 14284, and 21426 kg broiler litter ha-1, respectively). The present findings showed that Fe, Mn, Cu and Zn concentrations in forage corn were not affected by urea application; however, broiler litter application significantly increased Fe, Mn and Cu concentrations of corn stover in a linear trend. The broiler litter and urea fertilizer significantly increased both dry matter and protein content of forage corn but no significant differences on those components were obtained between broiler litter and urea fertilizer at each N application rate. The results suggested that N applied to forage corn by broiler litter, at the recommended rate for inorganic N fertilization, is almost more effective in terms of forage nutritive value response than urea fertilizer. The profitability of forage corn production could be enhanced by replacing chemical fertilizers with broiler litter.

Palatability,in situandin vitronutritive value of dried sainfoin (Onobrychis viciifolia)

2010 ◽  
Vol 148 (6) ◽  
pp. 723-733 ◽  
Author(s):  
H. KHALILVANDI-BEHROOZYAR ◽  
M. DEHGHAN-BANADAKY ◽  
K. REZAYAZDI
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Nutritive Value ◽  
Nutrient Content ◽  
Gas Production ◽  
Metabolizable Energy ◽  
Acid Detergent Fibre

SUMMARYThe current study was conducted to determine chemical composition, nutrient content and availability, metabolizable energy (ME) content and nutritive value of sainfoin hay for ruminants. Three ruminally cannulated Holstein cows were used forin situandin vivoexperiments, to determine rumen degradability and digestibility of sainfoin hay. Apparent total tract digestibility of nutrients was determined with feeding of sainfoin hay as the sole diet to achieve 10% more than maintenance energy requirements. Six Zandi ewes were used in the palatability experiment. Means for dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fibre (NDF), acid detergent fibre (ADF) and condensed tannins (CTs) of sainfoin hay were: 940·4 g/kg and 93·43, 12·13, 47·87, 43·33 and 2·13 g/kg DM, respectively.In situeffective degradability of CP and DM were 0·38 and 0·54 g/g with a ruminal outflow rate of 0·05/h, respectively. OM apparent digestibility was in the range of 0·592–0·689, respectively, for Tilley & Terry and total faecal collection assays. ME content of sainfoin hay, according to different methods (gas production,in vitroandin vivodetermined digestible organic matter in dry matter (DOMD)) was in the range 6·87–10·11 MJ/kg DM. Metabolizable protein (MP) content was 483·4 g/kg CP. Sainfoin was more palatable than alfalfa for sheep. It was concluded that sainfoin has a potential use in ruminant rations, especially if environmental conditions are not suitable for alfalfa production.

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