Effects of various inulin levels on in vitro digestibility of corn silage, perennial ryegrass (Lolium perenne L.) and common vetch (Vicia sativa L.)/oat (Avena sativa L.) hay
The aim of this study was to investigate the effects of various inulin levels on in vitro true dry matter digestibility (IVTD DM) and in vitro neutral detergent fibre digestibility (IVTD NDF) of corn silage (CS), perennial ryegrass (PR), and common vetch/oat hay (VO). Inulin was added to the fermenter at concentrations of 0 (CSC, PRC, VOC), 100 (CS100, PR100, VO100), 200 (CS200, PR200, VO200), and 300 (CS300, PR300, VO300) mg/litre of total culture fluid using an in vitro Daisy" incubator. Each fermenter contained 1600 ml buffer solution and 400 ml rumen fluid. The IVTD DM and IVTD NDF were determined with a Daisy" incubator and rumen fluid obtained from three cannulated Karayaka rams. The IVTD DM values (%) for PRC, PR100, PR200, and PR300 were 70.06 ± 1.133, 73.21 ± 4.153, 70.36 ± 0.506, and 66.69 ± 1.317, respectively. The effects of vNDaFrious inulin levels on IVTD DM and IVTD NDF values of PR were significant (P <0.05). The IVTD DM and IVTD NDF values for CS and VO were not significantly (P >0.05) different. Among the treatments, supplementation of inulin to CS and VO did not have a significant (P >0.05) effect on IVTD DM and IVTD NDF values. The high dose of inulin (PR300D reduced IVTD DM and IVTD NDF, whereas PR100 showed a statistically significant (P <0.05) increase on IVTD Mand IVTD NDF. However, in vivo studies with PR may be required to show the effects of various levels of inulin supplementation to support the IVTD findings of the current study.
| Main Authors: | , , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
The South African Society for Animal Science (SASAS)
2017
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| Online Access: | http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S0375-15892017000500016 |
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