2012 ©
             Publication
Journal Publication
Title of Article Effect of various oil sources on in vitro gas production, digestibility and fermentation metabolites in Thai Friesian crossbred  
Date of Acceptance 4 January 2018 
Journal
     Title of Journal วารสารเกษตรพระวรุณ 
     Standard TCI 
     Institute of Journal คณะเทคโนโลยีการเกษตร มหาวิทยาลัยราชภัฏมหาสารคาม 
     ISBN/ISSN  
     Volume 15 
     Issue
     Month มกราคม-มิถุนายน
     Year of Publication 2018 
     Page  
     Abstract This investigation aims to study the effect of various oil sources on gas production, digestibility and fermentation metabolites in Thai Friesian crossbred by using in vitro gas production technique. The oil treatments included saturated fatty acid (SFA) contained tallow (TA), palm oil (PO) and polyunsaturated fatty acid (PUFA) included soybean oil (SBO), sunflower oil (SFO) which added at 4 % DM in the diet. The diet contained concentrate diet mixed with rice straw at the ratio 50:50. Gas productions (GP) and in vitro fermentation metabolites were recorded and calculated after incubation. At 24 and 48 hours of incubation time, the 5 bottles of inoculum were stopped and determined for in vitro dry matter digestibility (IVDMD) and in vitro organic matter digestibility (IVOMD). The results revealed that IVDMD and IVOMD were not different among treatments (P>0.05). However, the rate of gas production (c) in SFO was lower than other treatments (P<0.05). Furthermore, the effective gas production potentials (EP) and cumulative gas production at 96 hours (GP96) of SFA were higher than PUFA treatments (P<0.01). Supplementation of PO was higher in vitro fermentation metabolites such as GP and short chain fatty acid (SCFA) than other treatments (P<0.05), while ammonia nitrogen (NH3-N) concentration was higher by supplementation SFO in the diet. Results indicated that PUFA i.e. SFO inhibited cumulative gas production, the rate of gas production and in vitro fermentation metabolites. Supplementation of SFA i.e. PO seems more effective to increase cumulative gas production and in vitro rumen fermentation metabolites than other treatments. 
     Keyword oil, gas production, digestibility, rumen metabolites, in vitro technique 
Author
547030011-5 Mr. NAPHONGPHOT SUPHRAP [Main Author]
Agriculture Doctoral Degree
537030005-9 Miss CHANTIRA WONGNEN
Agriculture Doctoral Degree

Reviewing Status มีผู้ประเมินอิสระ 
Status ได้รับการตอบรับให้ตีพิมพ์ 
Level of Publication ชาติ 
citation false 
Part of thesis true 
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