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Articles by Songsak Chumpawadee
Total Records ( 10 ) for Songsak Chumpawadee
  Anut Chantiratikul and Songsak Chumpawadee
  The objective of this research was to reduce ruminal protein degradability of Wolffia meal (Wolffia globosa L. Wimm.) by roasting at 150°C for 2 to 8 min. Two Thai-indigenous x Brahman crossbred cattle were used to determine the in situ ruminal degradability of heat-treated Wolffia meal. The ruminal degradation characteristics of Wolffia meal were determined using nylon bags incubated in rumen in reverse order for 72, 48, 24, 12, 8, 4 and 2 h. The results found the decreased rapidly soluble Crude Protein (CP) fraction (p<0.05) and the increased potentially degraded CP fraction (p<0.05) of Wolffia meal roasted at 150°C for 6 to 8 min. However, protein degradability of Wolffia meal was not reduced by heat treatment. The results indicated that roasting at 150°C for 6 to 8 min could not protect Wolffia meal’s protein degradation by rumen microorganism.
  Songsak Chumpawadee , Orawan Chinrasri , Thassawan Somchan , Sathit Ngamluan and Sirilak Soychuta
  The study was conducted to investigate the effect of dietary inclusion of cassava yeast as a probiotic source on growth performance, ileum morphology and carcass characteristic. Two hundred and forty 1-day old broiler chicks of both sexes were used for 42-days. The chicks were randomly allocated to 24 pens containing 10 chicks each with 6 replicates and assigned to receive one of 4 dietary treatments (1. Control, 2. S. cerevisae 1x106 organisms/kg, 3. S. cerevisiae 1x107 organisms/kg, 4. S. cerevisiae 1x108 organisms/kg) in a completely randomized design. There was no significant difference in the feed intake starter period, feed conversion ratio, average daily gain and dressing percentage. Significant differences were observed in feed intake finisher period, tight percentage and villus height. The results of the present experiment showed that dietary inclusion of cassava yeast as a probiotic to broiler seems to have minimal influence on broiler performance. Also, further research is required to determine the dose and form of the probiotic used.
  Songsak Chumpawadee , Anut Chantiratikul and Suwannee Sataweesuk
  The study was conducted to investigate the effect of dietary inclusion of cassava yeast as a probiotic source on laying hens performance and egg quality. Two hundred and sixteen Roman breed laying hens (26 week of age), were used. The laying hens were randomly allocated to 24 pens containing 9 laying hens each with 6 replicates and assigned to receive one of 4 dietary treatments (1. Control, 2. S. cerevisae 1x106 organisms/kg, 3. S. cerevisiae 1x107 organisms/kg, 4. S. cerevisiae 1x108 organisms/kg) in a completely randomized design. The results showed that feed intake, feed conversion efficiency, albumin weight, yolk weight and haugh unit were not significantly different among treatments (p>0.05). Significant differences were observed in egg production, egg weigh and shell thickness. Cassava yeast as probiotic source had positive effect on egg weigh and shell thickness, but has negative effect on egg production. The results of the present experiment showed that dietary inclusion of cassava yeast as a probiotic to laying hens seems to have minimal influence on laying hens performance.
  Anut Chantiratikul , Songsak Chumpawadee and Piyanete Chantiratikul
  The effect of dietary Phosphorus (P) on nutrient and P digestibility in Thai-indigenousxBrahman crossbred cattle was studied. The experimental design was a 4x4 Latin square design with 21 days period. Four male crossbred cattle of about 1.5±0.5 years-old and weighing 220±30 kg were randomly received 1 of 4 dietary treatments containing 1.9, 2.4, 3.1 and 4.2 g P kg-1, respectively. The findings revealed that digestibilities of DM, OM, CP, NDF and ADF were not affected (p>0.05) by dietary P. However, P digestibility (818.71, 706.02, 625.25 and 537.90 g P kg-1 diet) decreased (p<0.05), but plasma P (35.36, 40.66, 46.97 and 55.42 mg L-1) increased (p<0.05) with increasing dietary P. The results indicated that dietary P affected (p<0.05) P digestibility and plasma P content in Thai-indigenousxBrahman crossbred cattle. The optimal dietary P for Thai-indigenousx Brahman crossbred cattle ranged from 1.7-3.1 g kg-1 diet.
  Songsak Chumpawadee and Opart Pimpa
  The objective of this study was to determine the effect of non forage high fibrous feedstuffs as fiber sources in a total mixed ration on gas production characteristics and in vitro fermentation using an in vitro gas production technique. The experiment was designed in CRD with five replicates per treatment. The fiber sources in the total mixed ration were rice straw (rt-TMR), tomato pomace (tp-TMR), palm meal (pm-TMR), dried brewer gain (db-TMR) and soybean hulls (sh-TMR). The results showed that kinetic gas production, in vitro dry matter digestibility and in vitro organic matter digestibility, were significantly different among treatments (p<0.05). The soybean hulls as a fiber source in the total mixed ration gave the highest IVDMD, IVOMD and gas production parameter. In vitro fermentation end-products consisting of NH3-N, TVFA and pH were significantly different among the treatments (p<0.05); however, the pH values were relatively stable at 7.01-7.16. All treatment means were within the normal range. NH3-N concentration was in the optimal range for rumen ecology microbial activity. Future research should investigate the impact of the ability of non forage high fibrous feed to replace forage in intact animal.
  Songsak Chumpawadee , Anut Chantiratikul and Piyanate Chantiratikul
  Eleven energy feed sources were evaluated for nutritive value by in vitro gas production technique. The rumen mixed microbe inoculums source was taken from fistulated Brahman-Thai native crossbred steers. The energy feed source were 1) broken rice 2) paddy rice 3) corn meal 4) rice bran 5) rice pollard 6) rice bran oil relate 7) cassava chip 8) mung bean meal 9) tomato pomace 10) soybean hull and 11) peanut hull. The treatments were assigned to randomize completely block design (blocked by source feedstuffs). The results indicated that soluble gas fractions (a), the fermentation of the insoluble fraction (b), rate of gas production (c) and potential of extent of gas production (|a|+b) were significantly different (p<0.01) among energy feed sources. The cumulative gas volume at 24, 48 and 96 h after incubation were highly significant difference (p<0.01) and estimated Metabolizable Energy (ME) were; 6.42, 5.37, 5.91, 6.68, 4.46, 6.59, 7.42, 5.24, 4.89, 6.18 and 4.48 MJ kg-1 DM, respectively. Cassava chip exhibited the greatest gas production characteristics, gas volume and estimated metabolizable energy. These results suggested that because cassava chip is available locally and inexpensive, it is the best potential energy source for beef and dairy cattle.
  Sittisak Khampa , Songsak Chumpawadee and Metha Wanapat
  Four, lactating dairy cows 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 = supplementation of high-quality feed block without cassava hay + malate at 500 g; T2 = supplementation of high-quality feed block without cassava hay + malate at 1,000 g; T3 = supplementation of high-quality feed block with cassava hay + malate at 500 g; T4 = supplementation of high-quality feed block with cassava hay + malate at 1,000 g, respectively. The cows were offered the treatment concentrate at a ratio to milk yield at 1:2 and urea-treated rice straw was fed ad libitum. The results have revealed that rumen fermentation and blood metabolites were similar for all treatments. 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 nutrients digestibility in lactating dairy cows.
  Songsak Chumpawadee and Sirilak Soychuta
  The objective of this study was to nutrient enriched of cassava starch industry by-product using fermentation method. The experimental design was 2 x 3 factorial in Completely Randomized Design (CRD). The factor A was kind of cassava starch industry by-product (cassava pulp and cassava peel) and combine with factor B (unfermented, naturally fermented and rumen microorganism fermented). The results revealed that the interaction between cassava starch industry by-product and fermentation method were shown in dry matter and crude fiber content. Crude fiber content was decreased (p<0.01) with naturally fermented and rumen microorganism fermented. Crude protein content was increased (p<0.01) with naturally fermented and rumen microorganism fermented. However, rumen microorganism fermented was highest true protein content and lowest NPN content (p<0.01). Nitrogen free extract was reverse affect by crude protein content. Base on this study nutrient enrichment of cassava starch industry by product can do by fermentation method, especially rumen microorganism fermented. The rumen microorganism fermented cassava starch industry by product is potentially useful feed material for mono gastric feeding.
  Songsak Chumpawadee , Orawan Chinrasri and Suwannee Santaweesuk
  Use of antibiotics as an additive in poultry diets to improve growth has been banned in several country. A popular alternative to the use of antibiotics has been use of probiotics. The study was conducted to investigate the effect of dietary inclusion of cassava yeast as a probiotic source on growth performance and carcass percentage in Japanese quails. Three hundred and twenty Japanese quails (1 day of age), were used. The Japanese quails were randomly allocated to 32 pens containing 10 birds each with 8 replicates and assigned to receive one of four dietary treatments (1.Control, 2. S. cerevisae 1x106 organisms/kg, 3. S. cerevisiae 1x107 organisms/kg, 4. S. cerevisiae 1x108 organisms/kg) in a completely randomized design. The results showed that feed intake, feed conversion ratio, average daily gain and carcass percentage were not significantly different among treatments (p>0.05). However, significant differences were observed in feed intake at weeks 5 and average daily gain at week 2. The results of the present experiment showed that dietary inclusion of cassava yeast as a probiotic to Japanese quail seems to have minimal influence on growth performance and carcass percentage.
  Songsak Chumpawadee
  Degradation characteristics of three by-product, were studied using the nylon bag technique. Nylon bags technique were conducted in two rumen fistulated Brahman-Thai native crossbred steers. They were offered ad libitum rice straw and received concentrate at 0.5% BW. Nylon bags containing 3.0 g of each by-product were immersed in duplicate at each time point in the ventral rumen of each steer for 3, 6, 12, 24, 48 and 72 h. The data were fitted to the equation P = a+b (1-e-ct) and effective degradability were calculated using a theoretical rumen out flow rate of k = 0.05/h. The treatments were 1) tomato pomace, 2) soybean hull and 3) peanut pod assigned according to a completely randomize design with four replication. The results indicate that the rapidly soluble fraction (a), potentially degradable fraction (b), degradation rate (c) and potential degradation (a+b) of DM, OM and CP were different among treatments (p<0.01). The effective degradability of DM, OM and CP are the same between soybean hull and peanut pot, but differences with tomato pomace. This data is necessary to screen by-product for nutritive value before using them in ruminant production systems.
 
 
 
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