Effects of season, maturity and rate of nitrogen fertilizer on ensilage of Setaria sphacelata

1968 ◽  
Vol 8 (34) ◽  
pp. 569 ◽  
Author(s):  
VR Catchpoole
Keyword(s):  
Nitrogen Fertilizer ◽  
Dry Matter ◽  
Dry Weight ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Moderate Amount ◽  
Ph Values ◽  
Silage Fermentation ◽  
Setaria Sphacelata ◽  
Water Soluble Carbohydrate

A study was made of the chemical composition and silage fermentation of Setaria sphacelata CV. Nandi. The grass was ensiled at three periods of the growing season, with two maturities at harvest, and grown with two levels of nitrogen fertilizer. On each harvest day cuts were taken in the morning, at noon, and in the afternoon. The object was to measure the variation that occurred under field conditions in south-eastern Queensland. The water soluble carbohydrate content of the grass was always below 6 per cent of its dry weight, and the silage had very low contents of lactic acid, high contents of volatile acids and high pH values. Volatile base contents were usually well below 20 per cent of the total nitrogen, showing that degradation of protein was not extensive. By traditional standards of silage quality the S. sphacelata was poorly preserved. On the other hand a degree of preservation was achieved as shown by the moderate amount of protein breakdown and small losses of dry matter and nitrogen during storage. Variation in the extent of fermentation changes, and of losses during ensilage, demonstrated that grass cut at five weeks was more effectively preserved than grass cut at eight weeks. Also, on any one harvest day, grass cut during the morning had lower dry matter contents, and was not as well preserved as cuts made later during the day.

Prediction of forage dry matter and soluble carbohydrate content from analysis of expressed juice

1996 ◽  
Vol 1996 ◽  
pp. 234-234
Author(s):  
D.I.H. Jones ◽  
C.P. Freeman ◽  
J.R. Newbold ◽  
A.R. Fychan ◽  
Elspeth Jones ◽  
...  
Keyword(s):  
Dry Matter ◽  
Carbohydrate Content ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Silage Fermentation ◽  
Ultimate Objective ◽  
Water Soluble Carbohydrate ◽  
On Farm ◽  
The Relationship

The dry matter (DM) and water soluble carbohydrate (WSC) concentrations of forage are the main characteristics influencing the course of silage fermentation. Knowledge of these parameters would enable decisions to be made both on the need for additive and the type of additive likely to be most effective. Moreover, the degree of wilt could also be followed in wilted crops. The present study was directed to assessing the relationship between the composition of the crop and the volume and composition of the expressed juice. The ultimate objective was the development of on-farm methodology for predicting the ensiling characteristics of crops.

Prediction of forage dry matter and soluble carbohydrate content from analysis of expressed juice

1996 ◽  
Vol 1996 ◽  
pp. 234-234
Author(s):  
D.I.H. Jones ◽  
C.P. Freeman ◽  
J.R. Newbold ◽  
A.R. Fychan ◽  
Elspeth Jones ◽  
...  
Keyword(s):  
Dry Matter ◽  
Carbohydrate Content ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Silage Fermentation ◽  
Ultimate Objective ◽  
Water Soluble Carbohydrate ◽  
On Farm ◽  
The Relationship

The dry matter (DM) and water soluble carbohydrate (WSC) concentrations of forage are the main characteristics influencing the course of silage fermentation. Knowledge of these parameters would enable decisions to be made both on the need for additive and the type of additive likely to be most effective. Moreover, the degree of wilt could also be followed in wilted crops. The present study was directed to assessing the relationship between the composition of the crop and the volume and composition of the expressed juice. The ultimate objective was the development of on-farm methodology for predicting the ensiling characteristics of crops.

Methane emissions differ between sheep offered a conventional diploid, a high-sugar diploid or a tetraploid perennial ryegrass cultivar at two allowances at three times of the year

2018 ◽  
Vol 58 (6) ◽  
pp. 1043 ◽  
Author(s):  
A. Jonker ◽  
G. Molano ◽  
E. Sandoval ◽  
P. S. Taylor ◽  
C. Antwi ◽  
...  
Keyword(s):  
Perennial Ryegrass ◽  
Dry Matter ◽  
Early Spring ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Ch4 Emissions ◽  
High Sugar ◽  
Elevated Water ◽  
Water Soluble Carbohydrate ◽  
Male Sheep

Elevated water-soluble carbohydrate (WSC) concentration in the diet may affect rumen fermentation and consequently reduce methane (CH4) emissions. The objective of the present study was to determine CH4 emissions from male sheep (8 per treatment) in respiration chambers for 48 h and fed either a conventional diploid (CRG), a high-sugar diploid (HSG) or a tetraploid (TRG) perennial ryegrass cultivar, each offered at 0.7 or 1.0 kg dry matter (DM)/day during periods in early spring 2013 (P1), early autumn 2014 (P2) and late spring 2014 (P3). There was a significant (P < 0.001) interaction between cultivar and period for CH4 yield (g/kg DM intake). In P1 yield was 9% lower (P = 0.007) for sheep fed HSG than for sheep fed CRG or TRG, in P2 yield was 16% lower (P < 0.001) for sheep fed TRG than that for sheep fed CRG or HSG, and in P3 yield was 15% lower (P < 0.001) for sheep fed TRG than that for sheep fed CRG, with HSG-fed sheep being intermediate and not significantly different from either CRG or TRG. Despite there being a cultivar × period interaction, overall, CH4 yield was lower for sheep fed HSG or TRG than for sheep fed CRG (P < 0.001). There were no cultivar × level of feed offer interactions and, overall, yield of CH4 was 9% higher (P = 0.003) for sheep offered 0.7 than for sheep offered 1.0 kg DM/day. In each period, one or other of the high-WSC diploid (HSG) or tetraploid cultivars (TRG) gave lower CH4 yields than did the control diploid (CRG), suggesting that CH4 yield is reduced by characteristics of these cultivars. However, the effect was not consistently associated with either cultivar and could not be attributed to higher forage water-soluble carbohydrate concentrations.

The effects of maxgrass treatment of bale silage on the performance of beef cattle

1992 ◽  
Vol 1992 ◽  
pp. 148-148
Author(s):  
J R Weddell
Keyword(s):  
Beef Cattle ◽  
Dry Matter ◽  
Octanoic Acid ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Animal Performance ◽  
Storage Losses ◽  
The Uk ◽  
Water Soluble Carbohydrate ◽  
And Storage

Studies with beef cattle (Kennedy and Carson, 1991) and dairy cattle (Chamberlain et al, 1990) have shown responses in dry matter intake of silage and animal performance through applying Maxgrass silage additive to unwilted herbage ensiled in clamps. Maxgrass (BP Chemicals Ltd) contains (weight/volume) 68% ammonium hexamethanoate, 11% ammonium hexapropanoate and 2% octanoic acid.Research at Aberdeen has shown the benefits of using both inoculant (Weddell, 1990a) and formic acid based (Weddell, 1990b) additives on big bale silage which now constitutes around 15% of the total silage dry matter ensiled in the UK. The present study compared the effects on silage composition, animal performance and storage losses of Maxgrass treated with untreated big bale silage.Second cut perennial ryegrass herbage was wilted to a mean DM content of 230 g/kg then baled by fixed chamber baler. Mean water soluble carbohydrate was 100 g/kg DM. Alternate groups of six bales were left untreated or treated with Maxgrass silage additive at 7.4 1/tonne wilted grass.

EFFECT OF 3-(4-CHLOROPHENYL)-1,1-DIMETHYLUREA ON DRY MATTER PRODUCTION, TRANSPIRATION, AND ROOT EXTENSION

1960 ◽  
Vol 38 (2) ◽  
pp. 201-216 ◽  
Author(s):  
Wm. Harold Minshall
Keyword(s):  
Dry Matter ◽  
Phleum Pratense ◽  
Water Soluble ◽  
Extension Growth ◽  
Dry Matter Production ◽  
Soluble Carbohydrate ◽  
Soluble Nitrogen ◽  
Matter Production ◽  
Detached Leaves ◽  
Water Soluble Carbohydrate

Extension growth of the chlorophyll-containing roots of Hydrocharis morsusranae was inhibited by 0.5 p.p.m. of 3-(4-chlorophenyl)-1,1-dimethylurea (monuron) whereas concentrations close to the water saturation point of 230 p.p.m. were required to inhibit extension growth of the non-chlorophyll-containing attached roots of Zea mays and Phleum pratense and the detached roots of Pisum sativum.A total of 15–20 μg of monuron per gram fresh leaf applied through the cut petiole of detached primary leaves of Phaseolus vulgaris inhibited the increase of dry matter by 90% and suppressed transpiration 40–50%. Internal concentrations of 1–2 μg/g of monuron produced simultaneous enhancement of dry matter increase and of transpiration but concentrations of 5–10 μg/g produced a suppression of dry matter increase concurrently with an enhancement of transpiration. Age of leaf and the time of year in which the plants were grown altered the critical internal concentration levels required to affect dry matter increase and transpiration.Analysis of detached leaves treated with 15–20 μg/g monuron indicated a marked suppression of the formation of non-water-soluble carbohydrate, a slight suppression of the formation of water-soluble nitrogen, but little or no effect on water-soluble carbohydrate or on non-water-soluble nitrogen.In detached leaves o-phenanthroline, 3-phenyl-1,1-dimethylurea, and 3-(3,4-dichlorophenyl)-1,1-dimethylurea resembled monuron closely in symptom development and in their effect on dry matter production and transpiration. Iodoacetamide, 2,4-dinitrophenol, and 8-hydroxyquinoline each produced some effects similar to monuron but differed from it in certain respects; Thiourea, sodium diethyldithiocarbamate, sodium fluoracetate, ethyl-NN-diphenylcarbamate, and hydroxylamine hydrochloride were without noticeable effect.

The effects of ensiling molassed sugar beet pulp with grass and protein supplementation on pregnant ewe performance.

1994 ◽  
Vol 1994 ◽  
pp. 122-122
Author(s):  
J.V. O'Doherty ◽  
T.F. Crosby ◽  
P.J. Quinn
Keyword(s):  
Sugar Beet ◽  
Protein Supplementation ◽  
Water Soluble ◽  
Sugar Beet Pulp ◽  
Soluble Carbohydrate ◽  
Silage Fermentation ◽  
Sunshine Hours ◽  
Beet Pulp ◽  
Pregnant Ewe ◽  
Water Soluble Carbohydrate

There is increasing interest in the addition of dry feed materials to grass at ensiling, primarily as a means of reducing effluent production although other benefits claimed include improvements in silage fermentation and animal performance. The objective of the present study was to examine the possible use of molassed sugar beet pulp fed either separately or ensiled with grass at the time of silage making on ewe and lamb performance, and with or without protein supplementation.Grass from a primary growth of perennial ryegrass with dry matter, water soluble carbohydrate and crude protein contents of 13.2%, 24 g/kg and 106 g/kg DM respectively was mowed on June 2nd and was picked up using a precision chop harvester on the 4th and 5th of June. The weather during this period was extremely unfavourable for good silage making. There were 7.5, 1.5 and 2.8 mm of rainfall on the 3rd, 4th and 5th of June. The temperatures (0 C) on these days were: 2nd June - 12.9: 3rd -10.6: 4th - 10.7. There was no bright sunshine hours on either the 3rd or 5th of June and only 2.1 hours on June 4th. Two treatments were imposed (i) formic acid (2.5 litres/t) applied in the field via the forage harvester (GS) (ii) molassed sugar beet pulp (MSBP)(50 kg/t) applied by hand in the silo on top of each load of grass(GSP).The two silos were filled .consolidated and sealed within 24 hours.

Effects of row spacing and plant population on sweet sorghum yield

1984 ◽  
Vol 24 (126) ◽  
pp. 386 ◽  
Author(s):  
PM Martin ◽  
FM Kelleher
Keyword(s):  
Sweet Sorghum ◽  
Dry Matter ◽  
Plant Population ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Row Spacing ◽  
Photosynthetic Productivity ◽  
South Wales ◽  
Narrow Row ◽  
Water Soluble Carbohydrate

Sweet sorghum (Sorghum bicolor) was grown in an irrigated field trial at Richmond, New South Wales, to determine the effects of row spacing (30, 75, and 105 cm) and plant population (8 and 16 plants/m2) on yields of water soluble carbohydrate (WSC) and dry matter. For both plant populations, narrow row spacing resulted in significantly greater dry matter and WSC yield, especially at seed maturity. Total dry matter and WSC yield also increased with increased plant population from 8 to 16 plants/m2. Much of the WSC yield advantage of reduced row spacing was attributed to greater photosynthetic productivity before anthesis, which resulted in higher WSC yield at anthesis and the production of taller, thicker stems, the volume of which was closely related to post-anthesis WSC accumulation

Effects of Fermented Green Juice and Cellulase on the Silage Quality of Sugarcane Top

2012 ◽  
Vol 554-556 ◽  
pp. 1053-1056 ◽  
Author(s):  
Yi Fen Zhuang ◽  
Xin Zhu Chen ◽  
Zhao Xia Dong ◽  
Jian Guo Zhang ◽  
Wen Chang Zhang
Keyword(s):  
Acetic Acid ◽  
Lactic Acid ◽  
Moisture Content ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Moisture Contents ◽  
Ph Values ◽  
Silage Quality ◽  
Water Soluble Carbohydrate

Two moisture levels of sugarcane top (moisture contents 69.03% - MC1 and 56.38% - MC2) were treated with fermented green juice (FGJ) at 2 ml/kg and/or with cellulase (CEL) at 5000 U/kg raw matter, and ensiled in the laboratory at ambient temperature. All additive treatments significantly (P<0.01) increased lactic acid and water soluble carbohydrate (WSC) contents, and significantly (P<0.01) decreased pH and contents of NH3-N and acetic acid compared with the control. The treatment of FGJ and CEL mixture significantly (P<0.01) decreased pH and content of acetic acid (AA) compared with treatments of FGJ and CEL alone. All the MC2 silages had more extensive fermentation than MC1 silage, shown by higher contents of lactic acid, lower pH values and NH3-N contents. In conclusion, both FGJ and CEL addition significantly improved the silage quality of sugarcane top, and their mixture had better result than FGJ and CEL alone. Reducing the moisture content of sugarcane top could improve its silage quality.

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