The durations of masticating activities and the feed energetic utilisation of Friesian lactating cows on maize silage-based rations

1991 ◽  
Vol 65 (1-5) ◽  
pp. 194-205 ◽  
Author(s):  
D. Dehareng ◽  
J.-M. Godeau
Keyword(s):  
Maize Silage ◽  
Lactating Cows

Inter-laboratory variation in feedstuff evaluation of two contrasting maize silage samples

1996 ◽  
Vol 1996 ◽  
pp. 232-232
Author(s):  
D.E. Beever ◽  
S.B. Cammell ◽  
S. Edmonds
Keyword(s):  
Analytical Techniques ◽  
Maize Silage ◽  
Advisory Services ◽  
Lactating Cows ◽  
Feeding Value ◽  
Apparent Variation ◽  
Metabolisable Energy ◽  
The Uk

The importance of feedstuff evaluation as part of ration formulation is recognised by UK farmers, with the number of silage samples analysed increasing annually. These can be undertaken by the UK advisory services or feed companies, with several commercial laboratories offering similar services. However, as discussed by Beever [1993], there is concern over the authenticity of some estimates of feeding value, in relation to the analytical techniques used, the lack of agreed standardised procedures, and the apparent variation in results which exists between laboratories. This study examined the extent of this variation when 2 maize silage samples were independently analysed by 9 different laboratories, and compared laboratory based estimates of metabolisable energy [ME] contents with those derived by feeding the same diets to lactating cows.

scholarly journals Comparison of Faecal versus Rumen Inocula for the Estimation of NDF Digestibility

Animals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 928 ◽  
Author(s):  
Maria Chiaravalli ◽  
Luca Rapetti ◽  
Andrea Rota Graziosi ◽  
Gianluca Galassi ◽  
Gianni Matteo Crovetto ◽  
...  
Keyword(s):  
Incubation Time ◽  
Rumen Fluid ◽  
Maize Silage ◽  
Ruminal Fluid ◽  
Feed Ingredients ◽  
Neutral Detergent Fibre ◽  
Lactating Cows ◽  
The Mean

Cow faeces have been investigated as alternative inoculum to replace rumen fluid to determine neutral detergent fibre (NDF) digestibility (NDFD). Aims of this study were to estimate: (1) the NDFD (48 h) of feed ingredients using a rumen inoculum in comparison with faecal inocula from cows fed diets with different forage basis; (2) the undigestible NDF (uNDF) at 240 and 360 h with ruminal fluid and faecal inocula from lactating cows fed two different diets. At 48 h incubation, the NDFD was affected both by feed and type of inoculum (p < 0.01) and by their interaction (p = 0.03). Overall, the mean NDFD was higher for rumen inoculum than for faecal inocula (585 vs. 389 g/kg NDF, p < 0.05), and faecal inoculum obtained from cows fed hay-based diets gave lower NDFD than those from cows fed maize silage (367 vs. 440 g/kg, p < 0.05). At long incubation times, the average uNDF was affected by substrate, inoculum and incubation time (p < 0.01), but not by their interactions. For each inoculum, significantly lower values were obtained at 360 than at 240 h. Regressions between uNDF with rumen and with the tested faecal inocula resulted in r2 ≥ 0.98. Despite the differences at 48 h, the uNDF showed that faecal inoculum could replace rumen fluid at longer incubation times.

Inter-laboratory variation in feedstuff evaluation of two contrasting maize silage samples

1996 ◽  
Vol 1996 ◽  
pp. 232-232
Author(s):  
D.E. Beever ◽  
S.B. Cammell ◽  
S. Edmonds
Keyword(s):  
Analytical Techniques ◽  
Maize Silage ◽  
Advisory Services ◽  
Lactating Cows ◽  
Feeding Value ◽  
Apparent Variation ◽  
Metabolisable Energy ◽  
The Uk

The importance of feedstuff evaluation as part of ration formulation is recognised by UK farmers, with the number of silage samples analysed increasing annually. These can be undertaken by the UK advisory services or feed companies, with several commercial laboratories offering similar services. However, as discussed by Beever [1993], there is concern over the authenticity of some estimates of feeding value, in relation to the analytical techniques used, the lack of agreed standardised procedures, and the apparent variation in results which exists between laboratories. This study examined the extent of this variation when 2 maize silage samples were independently analysed by 9 different laboratories, and compared laboratory based estimates of metabolisable energy [ME] contents with those derived by feeding the same diets to lactating cows.

The feeding value of normal and brown midrib-3 maize silage

1986 ◽  
Vol 106 (1) ◽  
pp. 31-35 ◽  
Author(s):  
R. F. Weller ◽  
R. H. Phipps
Keyword(s):  
Dry Matter ◽  
Live Weight ◽  
Normal Diet ◽  
Dry Matter Intake ◽  
Brown Midrib ◽  
Maize Silage ◽  
Lactating Cows ◽  
Acid Detergent Fibre ◽  
Feeding Value

SUMMARYNormal and brown midrib-3 (bm3) maize silages were fed to sheep, lactating cows and dairy calves to determine the effect of the bm3 gene on in vivo digestibility, dry-matter intake and animal performance.In two trials wether sheep were fed either normal or bm3 maize silage at maintenance level. In the first experiment the bm3 gene significantly increased the digestibility of the organic matter(OM), cell wall constituents (CWC), acid-detergent fibre (ADF), cellulose and hemicellulose from 76·9, 74·7, 67·3, 74·2 and 79·5% to 79·6, 79·2, 75·8, 80·8 and 81·5%. In the second experiment the gene increased the digestibility of the OM, CWC, ADF and cellulose from 65·9, 44·7, 28·5 and 38·7% to 701, 59·3, 560 and 66·1, 39·1,32·8, 40·4 and 45·5% to 68·1, 51·9, 53·7, 58·0 and 49·2%. The digestibility of the protein was similar for both diets.In a feeding trial 6-month-old calves were fed either normal or bm3 silage ad libitum together with 1·6 kg D.M. of a protein supplement. The dry-matter intake of the two silages was similar; however, the daily live-weight gain of 0·92 kg for calves fed the bm3 diet was significantly higher than the 0·83 kg for calves fed the normal diet.

scholarly journals A comparison of parameters of the passage of nylon capsules and digesta calculated from faecal excretion data obtained in lactating cows

2011 ◽  
Vol 50 (No. 10) ◽  
pp. 450-458
Author(s):  
J. Třináctý ◽  
M. Richter ◽  
J. Pozdíšek ◽  
Kowalski ZM ◽  
E. Fajmonová
Keyword(s):  
Dairy Cows ◽  
Pore Size ◽  
Retention Time ◽  
Delay Time ◽  
Maize Silage ◽  
Faecal Excretion ◽  
Mean Retention Time ◽  
Lactating Cows ◽  
Outside Diameter ◽  
Nylon Cloth

The aim of the study was to compare parameters of passage of nylon capsules and digesta represented by Cr-labelled maize silage through the digestive tract of dairy cows. The capsules were made of nylon cloth (42&nbsp;&micro;m pore size, 10 mm outside diameter) and applied orally. The evaluation was carried out in dairy cows with milk yield of 19.0 kg/day. The diet (17.6 kg DM/day) consisted of maize silage, lucerne hay and concentrate. Total mean retention time (TMRT), delay time (&tau;), summarised compartmental mean retention time (CMRTS), and mean individual compartmental retention times (CMRT1 and CMRT2) were calculated. TMRT, &tau;, CMRTS, CMRT1 and CMRT2 values of nylon capsules and Cr-labelled silage were 36.2 and 45.4 h (P &lt; 0.01), 16.2 and 8.3 h (P &lt; 0.01), 20.1 and 37.2 h (P &lt; 0.01), 7.8 and 8.5 h, 12.2 and 28.7 h (P &lt; 0.05), respectively. The calculated mean retention time of nylon capsules in the reticulo-rumen (CMRTS) was shorter and in the intestines (&tau;) was longer than that of digesta. For this reason the estimation of digestibility using the nylon capsule method can be questionable. &nbsp;

The supplementation of maize silage for an autumn-calving dairy herd

1976 ◽  
Vol 23 (2) ◽  
pp. 191-196 ◽  
Author(s):  
R. H. Phipps ◽  
D. G. Cramp
Keyword(s):  
Milk Production ◽  
Dry Matter ◽  
Dairy Herd ◽  
Fat Content ◽  
The Other ◽  
Maize Silage ◽  
Mean Values ◽  
Urea Phosphate ◽  
Lactating Cows ◽  
Ad Libitum

SUMMARYThirty-nine British Friesian lactating cows were used to study the effects on milk production of supplementation of maize silage offered ad libitum during two 3-hr periods each day. During weeks 11 to 24 of lactation a comparison was made of (i) no supplement, (ii) 183 g/day of a mixture (2: 1) of urea: urea phosphate, (iii) 5 kg/day of barley plus 183 g/day of the urea: urea phosphate mixture, (iv) 7 kg/day of dried grass and (v) 10 kg/day of dried grass. The corresponding treatment mean values were: milk yield (kg/day), 10·0, 9·9, 13·4, 15·1, 16·8; fat content (%), 3·43, 3·80, 3·98, 3·92, 3·61; solids-not-fat content (%), 7·95, 8·03, 8·45, 8·51, 8·49; energy intake (MJ/day), 71·2, 76·9, 130·3, 132·7, 138·6; intake of dry matter as maize silage (kg/cow per day), 7·1, 7·7, 8·3, 7·7, 6·5. With the exception of fat content, the differences between treatments 1 and 2 were not significant but the values for these two treatments were significantly lower than those for the other three treatments.

The performance of pregnant ewes and their progeny when fed grass, maize or super pressed pulp silages in late pregnancy

1995 ◽  
Vol 1995 ◽  
pp. 78-78
Author(s):  
P.F. Maher ◽  
J.V. O'Doherty ◽  
P.J. Quinn ◽  
T.F. Crosby
Keyword(s):  
Nutritive Value ◽  
Late Pregnancy ◽  
Maize Silage ◽  
Grass Silage ◽  
Lactating Cows ◽  
Silage Maize

While the benefits of using maize silage and ensiled super pressed pulp in the diets of lactating cows has been well researched, little work has been done on the inclusion of these feeds in the diets of pregnant ewes. The objective of this experiment was to compare the effects of the nutritive value of grass silage, maize silage and a maize silage/ensiled super pressed pulp (60:40) mixture, when offered to mature twin bearing ewes in late pregnancy on ewe and lamb performance.

The study of replacing maize silage with triticale or barley whole crop silage on feeding the lactating cows

2005 ◽  
Vol 2005 ◽  
pp. 196-196
Author(s):  
M. Vatandoost ◽  
M. Danesh Mesgaran ◽  
R. Valizadeh ◽  
H. Nasirimoghaddam
Keyword(s):  
Dairy Cows ◽  
Dry Matter ◽  
Sandy Soils ◽  
Early Spring ◽  
Limiting Factor ◽  
Maize Silage ◽  
Forage Maize ◽  
Lactating Cows ◽  
Fodder Crops ◽  
Barley Silage

Grass and forage maize are the most important fodder crops for feeding dairy cows. However, on drought prone sandy soils, and in years with insufficient rainfall the yield of maize is very low (7 to 8 tons DM/ha). In situations where water is a limiting factor for growing maize, triticale and barley may be an alternative fodder crop. Triticale grows mainly during the early spring when there usually is a precipitation surplus and so, water is not a limiting factor for growth. When triticale is harvested as triticale whole crop silage the DM yield ranges between 9 and 11 ton of dry matter per hectare. Therefore, under water limiting conditions it may be attractive to replace forage maize by triticale and barley whole crop silage. The objective of this study is to find the effects of replacing maize and barley silage by triticale whole crop silage on feed intake and milk production of lactating Holstein cows.

scholarly journals Turnips for summer milk production

1995 ◽  
pp. 145-150
Author(s):  
D.A. Clark ◽  
S.W. Howse ◽  
Robyn J. Johnson ◽  
A. Pearson ◽  
J.W. Penno ◽  
...  
Keyword(s):  
Milk Production ◽  
Maize Silage ◽  
Short Term ◽  
Dairy Farmers ◽  
Lactating Cows ◽  
Farm Survey ◽  
Feeding Trials ◽  
Effect On Yield ◽  
Break Even Point ◽  
Yield Responses

Recently many dairy farmers have sown turnips as a summer feed for lactating cows. This paper reports on a national survey of turnip crops in 1994-95, an experiment on turnip yield responses to N fertiliser and two short-term supplementary feeding trials. Farmers had on average 4.3% of their farms in turnips with a mean yield of 7.4 t DM/ha (range 0 to 15.2 t DM/ha) (n = 328). Barkant was the highest yielding cultivar and mixtures yielded significantly less than Barkant alone. Rainfall in November and December but not January was positively associated with turnip yield. Fertiliser N after sowing increased turnip yield by 13.2 kg D/kg N, but fertiliser N at sowing or P fertiliser in the three months to sowing had no effect on yield. In contrast to the survey, application of 25, 50, 100 or 200 kg N/ha after sowing at TARS gave no significant increase in total DM yield. Supplementing pasture with 3.6 and 5 kg turnip DM/cow/day at DRC and TARS gave milksolids responses of 26 and 18% respectively compared to pasture only. The survey highlighted the variability of turnip yield, and although many growers reached the economic break-even point of 8-10 t DM/ha, there are less risky alternatives to summer turnips such as purchased maize silage and pasture from N-boosted spring pasture. Keywords: Barkant turnips, brassica, dairying, farm survey, milksolids, nitrogen

scholarly journals The productive function of silage beer grains in a diet of lactating cows

2016 ◽  
Vol 18 (2) ◽  
Author(s):  
Y. Pivtorak ◽  
O. Naymyuk ◽  
R. Petryshak ◽  
I. Golodyuk ◽  
Y. Semchuk ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Volatile Fatty Acids ◽  
Control Group ◽  
Maize Silage ◽  
High Concentration ◽  
Lactating Cows ◽  
Exchange Processes ◽  
Productive Function ◽  
Ruminant Animals ◽  
Experimental Group

In the presented material, the experiment from the application of preserved beer grains in feeding of dairy cows and its influence on the intensity of exchange processes in an organism and the level of a dairy performance, the containing of grease and protein on the background of a grass–based type of a diet are shown. Nineteen days lasting experiments were conducted under the scheme, which predicted using green forage in the compound of a diet, maize silage and the mixture of concentrates, the control group and altering silage to preserved (AMS) beer grains – an experimental group. It’s established, that the application of preserved beer grains instead of maize silage in feeding of dairy cows is marked positively on the intensity of rumen metabolism. It’s confirmed with the high concentration of microorganisms (amylo–, cellulo– and proteolytic) in rumens of ruminant animals for a parallel accumulation of raw biomass in the microflora, that points to an active synthesis of easily digestible microbial protein. On the background of a significant advantage on the experimental group over the control one for the listed parameters of a ruminant environment, the enzyme of a microorganism activity of a rumen, that provides increasing of volatile fatty acids as basic forerunners of dairy fat and protein as well. At the same, due to positive processes, which occur in organisms of dairy cows, the straight connection between physiol–biochemical indexes and the level of their dairy performance is found. The preference of the experimental group over the control one reaches 10.7% of basis grease for the last criterion, that confirms our observation about the expedience of application of preserved beer grains in the feeding of ruminants.

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