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Articles by Anut Chantiratikul
Total Records ( 7 ) for Anut Chantiratikul
  Parita Suppaso , Songsak Chumpavadee and Anut Chantiratikul
  The objective of this study was to determine effect of dietary phosphorus (P) on P utilization and excretion in Thai-indigenous heifers. The experimental design was a 4x4 Latin square design with 21 day period. Four Thai-indigenous heifers, average body weight of 107±4.53 kg, were randomly received 1 of 4 diets containing 0.10, 0.20, 0.30 and 0.40% P at 2% of BW. The results found that feed intake and nutrient digestibility of heifers were not significantly different (p>0.05) among treatments. Intake of P, P excretion, P absorption, P retention and plasma P concentration significantly increased (p < 0.05) with increasing dietary P. Additionally, P absorption and P retention of heifers fed 0.30 % dietary P were not significantly different (p>0.05) with those of heifers fed 0.40% dietary P. Based on the results, it could be concluded that dietary P levels affected significantly (p < 0.05) P utilization and excretion in Thai-indigenous heifers. The P requirement of heifers was lower than 0.4% of diet.
  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 , 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.
  Anut Chantiratikul , Panida Atiwetin and Piyanete Chantiratikul
  The feasibility of producing selenium-enriched water lettuce (Pistia stratiotes L.) was studied by cultivating water lettuce in Hoagland's solution containing 0, 20, 40, 60 and 80 mg Se from sodium selenite/L. There were 4 replicates in each Se concentration. Each replicate consisted of 30 plants of water lettuce. Three plants of water lettuce in each replicate were sampled on day 0, 1, 2, 3 and 4 of the experiment. The samples were washed with deionized water, separated for leaves and roots and finally dried at 65 °C. Prior to Se determination, leaf or root samples were pooled by replicate. The finding revealed that Se concentrations in leaves and roots of water lettuce increased significantly (p<0.05) with increasing Se concentration in Hoagland's solution and day of cultivation. However, Se concentration in leaves was lower than that of roots. Water lettuce cultivated in the solution containing 60 to 80 mg Se L-1 exhibited the yellow leaves and died in day 2 and 3. Therefore, the appropriate Se concentration and duration for producing Se-enriched water lettuce were 20 to 40 mg Se L-1 and 2 to 3 days of cultivation. The leaves of water lettuce cultivated in those conditions contained 11.14-13.50 and 21.06-29.55 mg Se kg-1, respectively.
  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.
  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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