Effect of silage type and supplementation with sucrose or lactic acid on rumen fermentation in dairy cows

1993 ◽  
Vol 1993 ◽  
pp. 40-40 ◽  
Author(s):  
J G Doherty ◽  
C S Mayne
Keyword(s):  
Lactic Acid ◽  
Dairy Cows ◽  
Milk Fat ◽  
Milk Composition ◽  
Rumen Fermentation ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Silage Fermentation ◽  
Fermentation Parameters ◽  
Water Soluble Carbohydrate

Recent studies have shown increased silage intake and improved milk fat concentration in dairy cows offered restricted compared to extensively fermented silages (Chamberlain et al., 1990; Mayne 1992). Changes in milk composition may be related to increased intake per se and/or alterations in rumen fermentation parameters. A study was therefore undertaken to examine the effects of silage fermentation type, dry matter intake and the addition of water soluble carbohydrate (WSC) or lactic acid on rumen fermentation parameters in dairy cows.Two direct cut grass silages were prepared using either an inoculant (Ecosyl, 3 1/t, ICI. pic) or Maxgrass (BP Chemicals, 6 1/t). Five silage only treatments were offered to four ruminally fistulated dairy cows in a five period, partially balanced, changeover design experiment. Each period was of 4 weeks duration. Treatment 1: Inoculant treated silage (I), 2: Maxgrass silage (M), 3: Maxgrass ad-libitum (MAL), 4: Inoculant + sucrose (500 g/day) (IS), 5: Maxgrass + lactic acid (200 ml/day) (ML).

The effect of formic acid, sulphuric acid and a bacterial inoculant on silage fermentation and the food intake and milk production of lactating dairy cows

1993 ◽  
Vol 56 (1) ◽  
pp. 29-42 ◽  
Author(s):  
C. S. Mayne
Keyword(s):  
Formic Acid ◽  
Dairy Cows ◽  
Sulphuric Acid ◽  
Milk Fat ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Fresh Weight ◽  
Silage Fermentation ◽  
Water Soluble Carbohydrate ◽  
Positive Effect

AbstractHerbage from first and second regrowths of perennial ryegrass based swards was directly ensiled following treatment with formic acid (850 g/kg) at 2·53 and 2·58 l/t, sulphuric acid (45% w/w) at 3·09 and 3·04 l/t, an inoculant of Lactobacillus plantarum (Kickstart, United Distillers Ltd) at 2/24 and 2/14 l/t, or no additive (control). First regrowth herbage had mean dry matter (DM) and water-soluble carbohydrate concentrations of 168 and 27·0 g/kg fresh weight with comparable values for second regrowth herbage of 164 and 16·9 g/kg respectively. All silages preserved well, although both the rate and extent of fermentation, as indicated by pH and lactic acid levels, were greater in control and inoculant-treated silages. Additive treatment had little effect on nutrient recovery following ensilage with the exception of a slightly greater recovery of both DM and energy with inoculant treated, second regrowth material. The silages were evaluated in two experiments, with 9 and 4 week periods for first and second regrowths respectively, using 48 British Friesian dairy cows. Animals were housed in individual stalls and, in addition to the treatment silages, received 5 kg/day fresh weight of a supplement containing 197 g crude protein per kg DM. Treatment of first regrowth material with formic acid significantly increased silage DM intake (P < 0·02) with a smaller, though positive effect being obtained with inoculant treatment. Treatment with either formic acid or inoculant had no significant effect on DM intake with second regrowth material. In contrast sulphuric acid tended to depress intake of first regrowth material whereas a marginal increase in intake was obtained with second regrowth material. Inoculant treatment had no significant effect on milk yield with either first or second regrowth material, although there was a tendency for small, though consistent, increases in milk fat and protein concentrations. Formic acid treatment resulted in marginal increases in fat plus protein yield whereas effects of sulphuric acid were less consistent with animal performance being decreased with first regrowth material and little effect observed with second regrowth material.

Matching grass supply to grazing patterns for dairy cows under strip-grazing management

1998 ◽  
Vol 1998 ◽  
pp. 49-49
Author(s):  
R.J. Orr ◽  
S.M. Rutter ◽  
P.D. Penning ◽  
N.H. Yarrow ◽  
L.D. Atkinson ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Water Soluble ◽  
Grazing Management ◽  
Soluble Carbohydrate ◽  
Production Potential ◽  
Grazed Pasture ◽  
Holstein Friesian ◽  
Water Soluble Carbohydrate ◽  
Strip Grazing ◽  
Friesian Cows

Grazed herbage is the cheapest feed available for dairy cows but total intake of nutrients from grazed pasture alone is generally insufficient to allow high yielding dairy cows to reach their production potential. Cows have their main daily meal following afternoon milking in the period up to sunset (e.g. Rook et al., 1994 ). In addition, both the DM content and water soluble carbohydrate (WSC) concentration of grass increase over the day (e.g. Orr et al., 1997) due to the loss of moisture and the accumulation of the products of photosynthesis. Based on this evidence, this study tested the hypothesis that dairy cows receiving strip-grazing allocations following the afternoon rather than the morning milking would show higher intake rates and consequently higher milk yields.Twenty Holstein-Friesian cows (median calving date 10 February 1997) were each supplemented with 4 kg concentrates day-1 and strip-grazed a perennial ryegrass pasture in four groups of 5 cows.

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.

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.

An examination of the effects of level of fish oil inclusion in the diet on rumen fermentation parameters in cattle

1998 ◽  
Vol 1998 ◽  
pp. 226-226
Author(s):  
C.S. Mayne ◽  
T.W.J. Keady ◽  
D A McConaghy
Keyword(s):  
Fish Oil ◽  
Dairy Cows ◽  
European Community ◽  
Milk Fat ◽  
Rumen Fermentation ◽  
Fat Content ◽  
Lactating Dairy Cows ◽  
Concurrent Study ◽  
Liquid Milk ◽  
Fermentation Parameters

The current milk quota regime within the European Community restricts both the volume and butterfat content of milk supplies from farms. Reduction in the butterfat concentration of milk enables an increase in liquid milk supplies, provided that the national butterfat base has been exceeded. In a concurrent study (Keady and Mayne, 1998) inclusion of fish oil in the diet of lactating dairy cows depressed butterfat content by up to 15 g/kg, consequently increasing the volume of milk which may be supplied in a quota situation by 0.27. The aim of the present study was to examine if the effects of fish oil inclusion on milk fat content were mediated via changes in rumen fermentation parameters.

Matching grass supply to grazing patterns for dairy cows under strip-grazing management

1998 ◽  
Vol 1998 ◽  
pp. 49-49 ◽  
Author(s):  
R.J. Orr ◽  
S.M. Rutter ◽  
P.D. Penning ◽  
N.H. Yarrow ◽  
L.D. Atkinson ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Water Soluble ◽  
Grazing Management ◽  
Soluble Carbohydrate ◽  
Production Potential ◽  
Grazed Pasture ◽  
Holstein Friesian ◽  
Water Soluble Carbohydrate ◽  
Strip Grazing ◽  
Friesian Cows

Grazed herbage is the cheapest feed available for dairy cows but total intake of nutrients from grazed pasture alone is generally insufficient to allow high yielding dairy cows to reach their production potential. Cows have their main daily meal following afternoon milking in the period up to sunset (e.g. Rook et al., 1994 ). In addition, both the DM content and water soluble carbohydrate (WSC) concentration of grass increase over the day (e.g. Orr et al., 1997) due to the loss of moisture and the accumulation of the products of photosynthesis. Based on this evidence, this study tested the hypothesis that dairy cows receiving strip-grazing allocations following the afternoon rather than the morning milking would show higher intake rates and consequently higher milk yields.Twenty Holstein-Friesian cows (median calving date 10 February 1997) were each supplemented with 4 kg concentrates day-1 and strip-grazed a perennial ryegrass pasture in four groups of 5 cows.

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.

Sign in / Sign up

Export Citation Format

Share Document