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Articles by S. Chumpawadee
Total Records ( 4 ) for S. Chumpawadee
  S. Chumpawadee and O. Pimpa
  The objective of this study was emphasized on effect of leaves as fiber sources in total mixed ration on in vitro fermentation using in vitro gas production technique. The experimental was designed in CRD with five replicates per treatment. The fiber sources in total mixed ration were corn cob (control group), Burma padauk leaves, rain tree leaves and Siamese rough bush leaves. The results showed that the kinetic of gas production and digestibility were statistical significantly differences among treatment (p<0.05). The corn cop as fiber source in total mixed ration gave the highest potential of extent of gas production. However, highest rate of gas production and digestibility were observed in the Siamese rough bush leaves as fiber source. Ruminal fermentation end-products consisted of ammonia nitrogen and volatile fatty acid were significantly differences among treatments (p<0.05). All treatment means were within the normal range. The pH values were relatively stable at 7.0-7.3. The results demonstrated that Burma padauk leaves, rain tree leaves and Siamese rough bush leaves can be used as fiber sources in total mixed ration. Importantly, leaves are abundant and available for feeding the ruminants in dry season.
  S. Khampa , P. Chaowarat , S. Chumpawadee , R. Singhalert and M. Wanapat
  Four, one-year old of dairy steers were randomly assigned according to a 2x2 factorial arrangement in a 4x4 latin square design to study supplementation of malate level at 500 and 1,000 g and cassava hay in high-quality feed block. The treatments were as follows: T1 is supplementation of high-quality feed block without cassava hay+malate at 500 g; T2 is supplementation of high-quality feed block without cassava hay+malate at 1,000 g; T3 is supplementation of high-quality feed block with cassava hay+malate at 500 g; T4 is supplementation of high-quality feed block with cassava hay+malate at 1,000 g, respectively. The cows were offered the concentrate and high-quality feed block at 1.3 and 0.5% BW and urea-treated rice straw was fed ad libitum. The results have revealed that feed-intake, rumen fermentation and blood metabolites were similar for all treatments. Apparent digestibility of nutrients were significant (p<0.05) for all diets. The populations of protozoa and fungal zoospores were significantly different as affected by malate level and cassava hay supplementation. In conclusion, the combined use of cassava hay and malate at 1,000 g in high-quality feed block with concentrates containing high levels of cassava chip at 65% DM could highest improved rumen ecology and digestibility of nutrients in dairy steers.
  S. Khampa , P. Chaowarat , S. Chumpawadee , R. Singhalert and M. Wanapat
  .
  S. Chumpawadee and O. Pimpa
  The objective of this study was to determine the effect of non forage fiber sources in a total mixed ration on feed intake, nutrient digestibility, chewing behavior and ruminal fermentation. Five Brahman-Thai native crossbred steers with an average initial body weight of 188±16.56 kg were randomly assigned in a 5x5 Latin square design. During each of five 21 days periods, the animals were fed 5 total mixed rations that varied in the non forage fiber sources, rice straw as fiber sources (rt-TMR, control), tomato pomace as fiber source (tp-TMR), palm meal as fiber source (pm-TMR), dried brewer gain as fiber source (db-TMR), soybean hulls as fiber source (sh-TMR). The results showed that feed intake, crude protein digestibility, chewing time, total number of chew and ruminal fermentation were significantly different among treatments (p<0.05). The palm meal as a fiber source in the total mixed ration has negative effect on feed intake and chewing behavior, although enhanced by 5% of long hey fiber. However, tomato pomace, dried brewer gain and soybean hulls can be used as fiber sources in TMRs, when enhanced with 5% of long hey fiber.
 
 
 
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