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Articles by O. Chinrasri
Total Records ( 5 ) for O. Chinrasri
  A. Chantiratikul , W. Aengwanich , O. Chinrasri and P. Chantiratikul
  The objective of this study was to determine the effect of sodium selenite and zinc-L-selenomethionine on plasma selenium (Se) concentration and glutathione peroxidase (GSH-Px) activity in the red blood cells (RBC) of laying hens. Two hundred twenty four CP Browns aged 71 weeks were divided according to a 2x3 factorial in completely randomized design. One more group without additional Se supplementation was used as negative control. Each treatment consisted of four replicates and each replicate contained eight hens. The dietary treatments were T1: basal diet, T2, T3 and T4: basal diets added 0.3, 1.0 and 3.0 mg Se from sodium selenite/kg, respectively, T5, T6 and T7: basal diets added 0.3, 1.0 and 3.0 mg Se from zinc-L-selenomethionine/kg, respectively. The findings revealed that the plasma Se concentration of hens received supplemented zinc-L-selenomethionine diets was higher (p<0.05) than that of hens received supplemented sodium selenite diets. Plasma Se concentration statistically increased (p<0.01) with increasing Se levels. The Se sources did not dramatically alter GSH-Px activity in RBC. However, GSH-Px activity significantly increased (p<0.01) with increasing dietary selenium levels. The results in this experiment indicate that zinc-L-selenomethionine increases higher plasma Se concentration than sodium selenite, however GSH-Px activity in RBC of laying hens is not affected by Se sources.
  A. Chantiratikul , O. Chinrasri , P. Chantiratikul , A. Sangdee , U. Maneechote and C. Bunchasak
  Wolffia meal [Wolffia globosa (L). Wimm.] was examined as a protein replacement for Soybean Meal (SBM) in the diets of laying hens. A total of 180 Rohman laying hens of 71 weeks old of age were randomly allocated into 5 groups; each group contained 4 replicates with 9 hens per replicate according to Completely Randomized Design. The dietary treatments were T1 = control diet; T2, T3, T4 and T5 = 25, 50, 75 and 100% of the CP from SBM was replaced by the CP of Wolffia meal, respectively. The results found the decreased feed intake and ME intake (p<0.05) when CP from SBM was replaced by CP from Wolffia meal. Total replacement of CP from SBM with CP from Wolffia meal decreased (p<0.05) egg production of laying hens. Egg yolk pigmentation increased (p<0.05) with increasing replacement of CP from SBM with CP from Wolffia meal. The findings reflected that Wolffia meal can be used as protein replacement for CP from SBM at 75% in the diet of laying hens.
  A. Chantiratikul , P. Chantiratikul , A. Sangdee , U. Maneechote , C. Bunchasak and O. Chinrasri
  The objectives of this study were to determine the effect of replacement of Crude Protein (CP) from Soybean Meal (SBM) with CP from Wolffia meal [Wolffia globosa (L). Wimm.] on performance and carcass quality in Japanese quails. Using Completely Randomize Design (CRD), two hundred eighty-eight quails were divided into four treatments. Each treatment consisted of six replicates and each replicate contained twelve quails. The dietary treatments were T1: control diet, T2, T3 and T4: CP from SBM was replaced by CP from Wolffia meal at 25, 50 and 75%, respectively. The results showed that the feed intake of quails significantly decreased (p<0.05) when over 50% of CP from SBM was replaced by CP from Wolffia meal in the diet. However, replacement of CP from SBM with CP from Wolffia meal in the diets did not alter (p>0.05) feed efficiency, performance and carcass quality of quails. Skin pigmentation increased (p<0.05) with increasing CP replacement from Wolffia meal. In conclusion, 50% of CP from Wolffia meal could appropriately replace CP from SBM in the diet of quail.
  A. Chantiratikul , P. Pooponpan , S. Santhaweesuk , P. Chantiratikul , A. Sangdee , U. Maneechote , C. Bunchasak and O. Chinrasri
  Crude Protein (CP) from Wolffia meal [Wolffia globosa (L). Wimm.] was used to replace CP from Soybean Meal (SBM) in the diets of broilers to determine its effect on the broiler’s productive performance and carcass characteristics. Using Completely Randomize Design, 384 ten-day-old broilers were divided into 4 treatments; each treatment consisted of 3 replicates of 16 birds each. The treatments were T1: control diet, T2, T3 and T4: 25, 50 and 75% of CP from SBM was replaced by CP from Wolffia meal, respectively. The results indicated that feed intake, average daily gain, feed conversion ratio, protein efficiency ratio and carcass characteristics of control group were better (p<0.05) than other groups. Skin pigmentation of broilers increased with increasing CP replacement from Wolffia meal. It was concluded that less than 25% of CP from SBM could be replaced by CP from Wolffia meal in broiler diets.
  P. Pooponpan , O. Chinrasri , S. Saenthaweesuk and A. Chantiratikul
  This study was conducted to investigate the metabolizable protein and metabolizable energy values of Wolffia meal in broilers. Twenty-four three-week-old broilers were divided into 2 groups of 12 birds each and kept individually in metabolic cages where the excreta could be collected. Birds in each group were randomly fed basal diet or basal diet mixed Wolffia meal at the ratio of 80:20. Their excreta were collected daily for 7 days. Diets and excreta of birds were analyzed for crude protein and gross energy. The metabolizable protein and metabolizable energy of Wolffia meal were estimated by using different methods. The results showed that metabolizable protein and metabolizable energy values of Wolffia meal in broilers were 34.46% of protein intake and 1,047.8 kcal/kg, respectively.
 
 
 
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