Response of silage intake and milk production to replacement of barley by barley fibre derived from integrated starch-ethanol process

Huhtanen, Pekka; Ala-Seppälä, Hannele; Näsi, Matti

doi:10.23986/afsci.72339

Cited by 5 publications

(7 citation statements)

References 13 publications

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“…Replacing barley grain with BF in the diet had an effect on the OM digestibility similar to that observed by Huhtanen (1992) in growing bulls and by Huhtanen et al (1988) in dairy cows. The reduction in NDF digestibility, when replacing barley grain with BF, was partly a consequence of decreasing proportion of silage's NDF in the total NDF intake.…”

Section: Effect Of Energy Sourcesupporting

confidence: 68%

Inclusion of barley fibre and barley protein in a total mixed ration for growing dairy bulls

Huuskonen

Khalili

Joki‐Tokola

2008

Acta Agriculturae Scandinavica, Section A - Animal Science

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A 2)2 factorial design with 32 dairy bulls was used to study the effects of partial replacement of a starchy concentrate with a fibrous concentrate and replacement of rapeseed meal with barley protein as protein supplement on performance of bulls with ad libitum access to a total mixed ration feeding. The two energy supplements were flattened barley (B) and a mixture (1:1 on dry matter (DM) basis) of flattened barley and barley fibre (BF). These were fed with either rapeseed meal or barley protein so that the crude protein content of rations was 162 g kg (1 DM. Replacing half of the barley grain with barley fibre increased (P B0.01) the average DM intake (9.3 kg d (1 versus 9.9 kg d (1 ), but had no effect on the average live weight gain (1.27 kg d (1 ). There seemed to be only a minor difference between rapeseed meal and barley protein as protein supplements on animal performance.

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Section: Effect Of Energy Sourcesupporting

confidence: 68%

Inclusion of barley fibre and barley protein in a total mixed ration for growing dairy bulls

Huuskonen

Khalili

Joki‐Tokola

2008

Acta Agriculturae Scandinavica, Section A - Animal Science

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“…For the S treatment, no difference in silage DMI between concentrates was noticed, but for the F treatment the silage intake was lower with the more fibrous concentrate B than A. Contrary to our results, Ala-Seppä lä et al (1988), Huhtanen et al (1988) and Aston et al (1994) measured increased silage intake when starchy concentrates were replaced by more fibrous concentrates. In these earlier studies the concentrate was given twice a day, whereas in our study the concentrate was given from computerized concentrate feeders during five feeding periods.…”

contrasting

confidence: 99%

Effect of the rate of increase in concentrate allowance with concentrates high or low in starch on the performance of dairy cows in early lactation

Mäntysaari

Khalili

2008

Animal

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The effect of the rate of increase in concentrate allowance after calving with two concentrate mixes (A and B) differing in composition was evaluated using 64 Finnish Ayrshire cows during the first 100 days of lactation. After calving, the concentrate allowance of multiparous cows was increased stepwise from 4 to 17 kg/day, and of primiparous cows from 3 to 13.5 kg/day over 12 days (F rate of increase; multiparous 1.08 kg/day, primiparous 0.88 kg/day) or 24 days (S rate of increase; mutiparous 0.54 kg/day, primiparous 0.44 kg/day). The concentrates were formulated to have similar crude protein and metabolizable energy concentrations but differing starch and NDF concentrations. For concentrate A the starch and NDF concentrations were 421 and 167 g/kg dry matter (DM) and for concentrate B 258 and 251 g/kg DM. All cows received grass silage ad libitum. The higher concentrate intake during weeks 1 to 4 of lactation with F compared with the S rate of increase caused higher DM, energy and protein intake. The higher concentrate intake for F than for S treatment in early lactation did not cause a large decrease in silage intake (8.8 v. 8.3 kg DM/day). The intake of concentrate A and B after calving did not differ for S treatment. However, for F treatment the intake of fibrous concentrate B increased faster than starch-rich concentrate A during weeks 1 to 4 of lactation. The concentrate composition had no effect on energy-corrected milk (ECM) yield during weeks 1 to 4 of lactation for S treatments, but with F treatments the cows fed B concentrate produced more milk. The F rate of increase in concentrate allowance compared with the S rate increased the calculated energy balance after calving. The rate of increase in concentrate feeding post partum or concentrate composition had no effect on DM, energy or protein intake during the whole 100-day experiment. The average ECM yield over days 1 to 100 of lactation was higher for S than for F treatments and tended to be higher with concentrate B than A. Results of this study showed that by the fast rate of increase in concentrate allowance after calving on a grass silage diet, it was possible to improve the energy status of the cows in early lactation. This had, however, no effect on production later in lactation.

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“…Impaired gain of BF75 bulls was a consequence of decreased DM and energy intake, which was possibly partly caused by decreased OM digestibility (OMD). Replacing barley grain with BF in the diet affected the OMD similarly as observed by Huhtanen (1992) in bulls and by Huhtanen et al (1988) in dairy cows. Barley fibre contains much more NDF and less starch than barley grain, and the difference in OMD can be attributed to a lower digestibility of cell wall components of BF than of those of barley starch.…”

Section: Discussionmentioning

confidence: 53%

“…Therefore the bulls could increase DMI when the energy content of the rations decreased with BF25 and BF50 diets compared with the control. In addition, replacing starch with fibrous concentrate may change rumen fermentation by increasing rumen pH, resulting in more efficient cellulolysis in the rumen, especially with high concentrate proportions (Huhtanen et al 1988), which may partly explain the increased DMI observed with the BF25 and BF50 diets compared with the control. However, DMI decreased when 75% of the barley grain concentrates was replaced with BF, so on the BF75 diet the bulls could not compensate the lower energy content of TMR by increasing DMI.…”

Section: Discussionmentioning

confidence: 99%

Effects of replacing different proportions of barley grain by barley fibre on performance of dairy bulls

Huuskonen¹,

Khalili²,

Joki‐Tokola³

2008

AFSci

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The objective of the present experiment was to study the effects of partial replacement of barley grain with barley fibre (BF) on animal performance, carcass traits and diet digestibility of growing dairy bulls. The feeding experiment comprised 20 Finnish Ayrshire bulls and 12 Holstein-Friesian bulls, and four treatments (8 bulls per treatment). There were four diets with two offered at stage 1 (from the initiation of the study to 450 kg live weight) and four at stage 2 (from 450 kg live weight to slaughter). The control diet (BF0) included grass silage (460 g kg -1 dry matter) and barley grain (540), BF25 diet included grass silage (460), barley grain (405) and BF (135), BF50 diet included grass silage (460), barley grain (270) and BF (270), and BF75 diet included grass silage (460), barley grain (135) and BF (405). At stage 1 there were only two treatments (BF0 and BF50) and at stage 2, all four treatments were included. All bulls were fed total mixed ration ad libitum. The mean initial live weight of the bulls was 261 kg and the mean final live weight 650 kg. At stage 1 there were no significant treatment differences in dry matter, energy or protein intakes or in live weight gain. At stage 2, replacing barley grain with BF led to a linear decrease of daily live weight gain (P < 0.05) and a linearly reduced feed conversion (kg dry matter kg -1 live weight gain) (P < 0.05). The apparent digestibility of the organic matter and neutral detergent fibre decreased linearly with increasing BF supplementation (P < 0.001). The dressing proportion and the carcass fat score decreased linearly (P < 0.05) with partial replacement of barley grain with BF. On carcass conformation, treatment had a significant (P < 0.05) quadratic effect: the BF25 and BF50 diets were classified highest. The results indicate that 50% of barley starch can be replaced with BF without affecting growth, but feed efficiency factors may decrease when barley starch is replaced with BF. At 75% replacement, feed intake was reduced, which resulted in a lower energy intake and reduced level of performance.

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Response of silage intake and milk production to replacement of barley by barley fibre derived from integrated starch-ethanol process

Cited by 5 publications

References 13 publications

Inclusion of barley fibre and barley protein in a total mixed ration for growing dairy bulls

Inclusion of barley fibre and barley protein in a total mixed ration for growing dairy bulls

Effect of the rate of increase in concentrate allowance with concentrates high or low in starch on the performance of dairy cows in early lactation

Effects of replacing different proportions of barley grain by barley fibre on performance of dairy bulls

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