|
|
Publication
|
| Title of Article |
Effect of roughage to concentrate ratio and mineral salt block
supplementation to optimize rumen fermentation in vitro gas technique |
| Date of Acceptance |
13 December 2016 |
| Journal |
| Title of Journal |
แก่นเกษตร(ฉบับพิเศษ) |
| Standard |
TCI |
| Institute of Journal |
มหาวิทยาลัยขอนแก่น |
| ISBN/ISSN |
|
| Volume |
45 |
| Issue |
1 |
| Month |
|
| Year of Publication |
2017 |
| Page |
48-52 |
| Abstract |
Feeding high-level concentrate which is unlimited grain feeding does not always increase production
and may be cause the problem for the cow. Feeding too high a level of concentrate may force animal oppose to
metabolism involve in efficiently of milk production. So, this study aimed to investigate the effect of mineral salt
block on rumen pH, fermentation, digestibility and ammonia-nitrogen (NH3-N) according to in vitro gas production
technique. The experiment design was a 2x5 factorial arrangement in a completely randomized design (CRD). There
were 2 experimental factors comprised of 1) two ratios of concentrate to roughage ratio (C:R) at 60:40 and 70:30
and 2) five mineral blocks were supplemented (control, A, B, C and D) at 0.5g/kgDM. There were 10 combination
treatments. The result showed that the gas production from the immediately soluble fraction (a) was non-significantly
by interaction between TMR and mineral salt block (P>0.05). The gas production from the insoluble fraction (b) was
significantly in mineral salt block and highest in control group (P<0.05). The gas production rate constant (c) for the
insoluble fraction (b) was highest in mineral block “A” (P<0.01). The rumen pH was significantly among dietary
treatments at 12 hours of experiment, pH were highest in mineral C and D compared with mineral salt block A and
control, 6.84, 6.84, 6.81 and 6.74, respectively (P<0.05). Ruminal pH was also significantly different between type of
diet which diet containing C:R=60:40 and diet containing C:R=70:30 were 6.77 and 6.83 respectively (P<0.001). In
addition, Dry matter (DM) and organic matter (OM) degradability were affected by C:R = 70:30 at 6, 12, 24 and 48
h (P>0.05). NH3-N concentration was not significant among dietary treatments. Therefore, this experiment concludes
that supplementation of mineral block could enhance rumen fermentation by maintaining pH in the rumen and this
might improve rumen function and digestibility. |
| Keyword |
Mineral block, gas production, rumen fermentation |
| Author |
|
| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
ชาติ |
| citation |
false |
| Part of thesis |
true |
| ใช้สำหรับสำเร็จการศึกษา |
ไม่เป็น |
| Attach file |
|
| Citation |
0
|
|
|
|
|
|
|
|
|
Journal Publication
ไทย