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Articles by Orawan Chinrasri
Total Records ( 3 ) for Orawan Chinrasri
  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 , 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.
  Anut Chantiratikul , Chakrapong Chaikong , Orawan Chinrasri and Pirayos Kangkun
  The objective of this study was to evaluate potential yield and chemical composition of kenaf as fodder for ruminants. Kenaf (Hibiscus cannabinus), variety Khon-Kaen 50, was planted at seed and row spacing of 30 and 50 cm, respectively. The plants were sampled at 6, 8, 10 and 12 weeks after planting. The findings revealed that dry matter yield and crude protein yield of 6-12 week-old kenaf were 0.12-2.14 and 0.02-0.14 t/ha, respectively (p<0.05). Crude protein (14.34-6.58%) content of kenaf decreased significantly (p<0.05) as harvesting age advanced. On the other hand, neutral detergent fiber (41.99-48.74%) and acid detergent fiber (27.20-30.57%) of kenaf increased statistically (p<0.05) with maturity advanced. The results indicated that 10 week-old kenaf with DM yield of 0.95 t/ha and contained 10% of CP could be used as fodder for ruminants.
 
 
 
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