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Articles by Chaiyapoom Bunchasak
Total Records ( 11 ) for Chaiyapoom Bunchasak
  Tuan Van Nguyen , Chaiyapoom Bunchasak and Somchai Chantsavang
  The objective of this study was to investigate the requirements of protein and energy level of the Betong chicken during growing period (42-84 days of age). Total of 288 42-days old of Betong chickens were used in a 4 x 2 factorial experiment with a completely randomized design. Two factors are included in the experiment design: 1) four dietary protein levels (15, 17, 19 and 21% CP) and 2) two dietary energy contents (3,000 and 3,200 ME kcal/kg). The chicks were allocated in floored pen. Feed and water were provided to the chicks ad libitum through an experimental period. There was no significant interaction effect between protein and energy levels on growth performance and carcass yields of the birds. Dietary protein level of 19-21% CP and energy content of 3,000 ME kcal/kg were sufficient for the best performance and carcass quality of the Betong chicken. In conclusion, dietary protein levels of 19% CP and energy content of 3,000 ME kcal/kg are recommended for the birds.
  Tasama Karukarach , Choawit Rakangthong , Chaiyapoom Bunchasak and Theerawit Poeikhampha
  An experiment was conducted to determine the effect of blended herbal extracts (BHEs; Origanum vulgare L., Cinnamomum zeylanicum Nees. and Capsicum frutescens L.) and mixed prebiotics (MPs; Mannanoligosaccharide and beta-glucan) in feed on the growth performance, carcass yield and intestinal morphology of broilers. Two hundred and seventy male broiler chickens (Arbor Acres) were divided into 3 groups and each group consisted of 5 replicates of 18 chicks each. The experiment was established as a completely randomized design. There were 3 experimental diets: 1) a control diet; 2) the control diet supplemented with blended herbal extracts (BHEs; 150 g/t); and 3) the control diet supplemented with mixed prebiotics (MPs; 2,000 g/t). At age 35 days, the results indicated that the feed conversion ratio (FCR) was significantly improved by supplementation with BHEs compared to MPs (P<0.05), while supplemental MPs seemed to increase the feed intake (P=0.08). Supplementation of BHEs or MPs significantly improved the breast meat yield and increased the villi height in the segment of the duodenum (P<0.05). However, the breast meat yield of the group fed MPs was higher than that of BHEs (P<0.05). In conclusion, supplementing mixed prebiotics or blended herbal extracts showed potential to promote the breast meat yield and improve the small intestine morphology by different mechanisms.
  Chonladda Harnkaew , Chaiyapoom Bunchasak , Choawit Rakangthong , Sirapan Sukontasing and Theerawit Poeikhampha
  Background and Objective: The carbohydrates in soybean meal consist of approximately 10% oligosaccharides and are linked by an α-1,6 galactosidase bond which cannot be broken down in the small intestine of monogastric animals due to the absence of endogenous α-1,6 galactosidase. This experiment was conducted to determine the effect of α-galactosidase supplementation in the laying hen diet on egg performance, egg quality and dietary digestibility. Methodology: A total of 576 Lohmann brown-classic hens (28 weeks old) were divided into 3 groups of 8 replications with 24 hens each. This experiment design was completely randomized design and there were 3 experimental diets, (1) Positive control diet, (2) Positive control diet decreased by 88 kcal kg–1 ME and supplemented with α-galactosidase at 0.022 and (3) Positive control decreased by 88 kcal kg–1 ME without any supplementation of α-galactosidase (negative control). Results: At the end of the 16 weeks of feeding trial, using α-galactosidase significantly improved egg production (p<0.05), egg mass (p<0.05), feed conversion ratio (FCR, p<0.01) and feed cost per egg (p<0.05), similar to the positive control. Feeding with α-galactosidase significantly improved the specific gravity (p<0.01), shell thickness (p<0.05), eggshell weight (<0.05) and tended to improve dietary digestibility (p<0.10) and decrease retention time in the gastro-intestinal tract (p<0.05). In addition, the apparent metabolizable energy (AME) increased (p<0.01) by α-galactosidase when compared to the negative control. However, the dietary treatment did not influence the other parameters of egg quality and feces score. Conclusion: Supplementation of α-galactosidase with reducing the metabolizable energy improved egg production performance, egg quality and feed digestibility.
  Kanokporn Poungpong , Eisuke Sumiyoshi and Chaiyapoom Bunchasak
  Background and Objective: This study was designed to investigate the effects of hydrolyzable tannoids (gallotannoids) on the productive performance and stress hormone levels (cortisol) of broilers, from hatching to 42 days of age, under high environmental stresses (i.e. heat stress, high stocking density, dirty litter). Materials and Methods: Two hundred and eighty-eight male broiler chickens (Ross 308 strain) were fed a corn-soybean meal-based diet under high stress conditions. The birds were devided into three groups: (1) control group, (2) group that received synthetic vitamin C at 286 ppm and (3) group that received gallotanoid at 100 ppm. Feed and water were offered ad libitum. Results: Gallotannoids significantly improved body weight gain (BWG) and feed conversion ratio (FCR) compared to the control and synthetic vitamin C groups (p<0.05) during the finisher period (days 35-42). During the overall period (days 0-42), gallotannoids significantly improved the European production efficiency factor (EPEF) and FCR compared to the control group (p<0.05), whereas the synthetic vitamin C did not significantly improve these measures (p>0.05). Blood cortisol hormone levels were decreased by the synthetic vitamin C, as well as by the gallotanoids (p>0.05). Conclusion: Results indicate that, at the tested doses and under high stress conditions, gallotannoid supplementation can improve broiler production performance more efficiently than synthetic vitamin C.
  Witchanun Juntanapum , Theerawit Poeikhampha , Kanokporn Poungpong , Choawit Rakangthong , Pudcharaporn Kromkhun and Chaiyapoom Bunchasak
  Background and Objective: This study was conducted to evaluate the effects of supplementation of Lysophosphatidylcholine (LPC) in diets on production performance, egg quality and intestinal morphology of laying hens. Materials and Methods: A total of 288 commercial laying hens (Lohmann brown-classic) from 33-46 weeks of age were used in this study. The hens were divided into 3 groups of 8 replications with 12 hens each. According to the experimental groups, hens were fed as 1) control diet, 2) control diet with 0.05% LPC and 3) control diet with 0.10% LPC. Results: At the end of the trial, supplementations of LPC (0.05 and 0.10%) significantly improved feed conversion ratio (FCR), increased egg size, decreased feed intake and reduced feed cost per egg weight (FCE) (p<0.01), although significant effect on percentage of egg production, egg weigh and egg mass were not observed. Neither of internal and external egg qualities were influenced by LPC supplementation. In term of morphology, adding LPC significantly decreased villi height in the segment of duodenum and conversely increased in the jejunum (p<0.05). Conclusion: It is concluded that supplementation of LPC may improve nutrients utilization (digestion or/and absorption) via the modification of gut morphology.
  Chudapun Puangkhum , Choawit Rakangthong , Theerawit Poeikhampha , Kanokporn Poungpong and Chaiyapoom Bunchasak
  Objective: The effect of mixed enzymes supplementation in the diet of meat-type ducks were determined on the production performance, carcass yield and gastrointestinal morphology from 1-45 days of age. Materials and Methods: A total of 384 ducks were divided into 4 treatments and each treatment consisted of 6 replicates of 16 ducks each. A completely randomized design with a 2×2 factorial pattern was used with 2 main effects: (1) Nutrients levels (D) (conventional diet, CD and low protein and energy diet, LD) and (2) Multi-enzyme supplementation (E) (non-supplemented, NS and supplemented, S). Results: In terms of nutrient levels, reduction of protein and energy in diet (LD) significantly depressed the average body weight (BW, p<0.05) and average daily gain (ADG, p<0.05) during the starter period. Moreover, the feed conversion ratio (FCR) of the LD groups was poor (p<0.05) throughout the experimental period. Supplementation with multi-enzymes (S) had no significant effect on production performance but reduced body fat accumulation (subcutaneous and abdominal fat, p<0.05). There was an interaction effect between D and E (p<0.05) on the villus height/crypt depth ratio (V/C ratio) of the duodenum, that is, the supplementation of multi-enzymes in the LD group decreased the V/C ratio. Conclusion: Throughout the study, low dietary protein and energy contents did not depress the growth rate since the ducks could compensate by increasing their feed intake to achieve a maximal growth rate, though consequently, the FCR was poor. Supplementation with multi-enzymes did not improve production performance but fat accumulation was reduced. The effects of supplemental multi-enzymes on gut morphology should be a future focus.
  Theerawit Poeikhampha and Chaiyapoom Bunchasak
  This study was conducted to evaluate the effect of SG supplementation in batch culture of pig cecal digesta (in vitro) on pH value, ammonia and Short Chain Fatty Acids (SCFAs) concentration. The dried ileal and cecal digesta of commercial crossbred female pigs were used as the substrate of fermentation and inoculums, respectively. The trial was divided into 5 groups according to the SG supplementations at 0, 1,250, 2,500, 5,000 or 7,500 ppm of dried ileal digesta (each group contained 6 replications). The experimental design was completely randomized design. The SG was added into each tube containing 8 mg of ileal digesta and 20 mL of inoculums. The tubes were immediately filled with CO2 and incubated at 39°C for 24 h. During the fermentation period, the samples of incubated fluid were collected at 4, 8 and 24 h for determination of pH and ammonia concentration, while SCFAs were determined at 24 h. At 8 and 24 h of fermentation period, SG supplementation (7,500 ppm) reduced pH value (p<0.01) and ammonia concentrations (p<0.05) in batch culture of porcine cecal digesta. At the end of fermentation period (24 h), supplementing SG evidently increased acetic acid, propionic acid and total SCFAs (p<0.01), although significant increase in butyric acids was not observed. It may imply that SG could be the useful prebiotic to depress pH and ammonia in cecal digesta of pigs due to high production of SCFAs.
  Piya Lampromsuk , Chaiyapoom Bunchasak , Chanwit Kaewtapee , Suriya Sawanon and Theerawit Poeikhampha
  One hundred and twenty piglets (body weight~7.24 kg, weaned at 24 day of age) were divided into 3 groups with 10 replication of 4 piglets in a completely randomized design. There were 3 feeding consisted; phase I (24-31 days), phase II (32-45 days) and phase III (46-73 days). The diets were divided into 3 treatments by adding 2, 300 ppm of zinc oxide in phase I to II (T1), adding 500 ppm of zinc acetate in phase I to II and plus 3,000 ppm of sodium benzoate based acidifier in all phases (T2) and by adding 500 ppm of zinc acetate in phase I to II and plus 3,000 ppm of formic acid based acidifier in all phases (T3). The results indicated that replacing zinc oxide (T1) by zinc acetate in phase I to II and plus sodium benzoate based acidifier in all phases (T2) significantly increased final body weight, body weight gain (p<0.05) and slightly improved FCR (p>0.05) while feed consumption was not significantly influenced by all dietary treatments. Moreover, the dietary treatments did not affect to intestinal pH, bacteria population and volatile fatty acids in the caecum of pigs. In term of morphology of absorptive cells, the supplementing zinc acetate in phase I to II and plus sodium benzoate based acidifier in all phases (T2) significantly increased villous height in jejunum and ileum (p<0.01), villous width in ileum (p<0.01) and crypt dept in jejunum (p<0.01) compared to T1 and T3. It can be concluded that supplemental organic zinc at 24-45 days of ages and plus several organic acids as acidifiers (sodium benzoate based acidifier) at 24-73 days of ages in diet may the growth performance via mechanism of nutrients absorption improvement.
  Eakapon Sritiawthai , Surapat Sakulthai , Jessada Sakdee , Chaiyapoom Bunchasak , Chanwit Kaewtapee and Theerawit Poeikhampha
  Seven hundred and fifty six, one day old male ducks were used to study the effect of dietary protein and energy on production, intestinal morphology and carcass yield of meat ducks during starter phase (1-14 days of age). The experimental diets were divided into 9 groups and each consisting 6 replications with 14 ducks. A completely randomized 3x3 factorial study design with 2 main effects was used. The main effects were as follows: (1) dietary energy; 2,700, 2,950 and 3,200 kcal kg-1 and (2) dietary protein levels; 18, 20 and 22%. (The standard recommendations for commercial duck starter diets are protein level 22% and energy level 2,920 kcal kg-1). At the end of feeding trial, the results revealed that there was a statistically significant interaction (p<0.01) between the levels of energy and protein in the diets offered with respect to all of the performance traits during the 14 day test period. The combination 18% protein and 2,700 kcal kg-1 resulted in the highest average daily gain, final weight and food intake and the most efficient food conversion ratio. There were no significant changes in villus height or crypt depth in the duodenum, jejunem or ileum in response to variation in dietary energy content. The only statistically significant change in these parameters in response to variation of dietary protein was in the case of the villus height of the jejunum which was highest at the lowest dietary protein level. Abdominal fat was significantly lower at the lowest energy level than for both of the higher levels. It is concluded that the combination of dietary energy concentration of 2,700 kcal kg-1 and protein content of 18% resulted in maximal growth during the starter phase of duck rearing.
  Pornpun Phoprasit , Chaiyapoom Bunchasak , Choawit Rakangthong and Theerawit Poeikhampha
  Above-normal temperatures and humidity levels limit the productivity as well as aggravate the survival rate of broilers raised under tropical conditions. This study was conducted to evaluate the effects of adding vitamins and organic acids into the drinking water on the growth performance, carcass yield and meat quality of broilers raised under hot environmental conditions. A total of 1,500 broilers were divided into 5 groups and distributed into 6 pens with each pen consisting 50 birds following a Completely Randomized Design technique. Throughout the 42 days of the feeding trial, all birds received 5 types of drinking water as follows: No vitamins nor organic acids added (control), vitamin C added at 40 mg L-1 water; vitamins C and E added at 40 mg and 85 mg L-1 water, respectively. A complete mixture of various vitamins at 1 g L-1 and a complete mixture of various vitamins, plus 1 g organic acids, added at 1 mL L-1 water. Feeding and flock management were done in accordance with commercial practices. During the 42 days of experiment, the average lowest and highest temperatures were 27.21±1.16 and 34.12±1.15°C, respectively. The results indicated that birds given vitamin C in the drinking water had trended higher body weight and lower mortality rate. When vitamins C and E mixture was combined with organic acids and was added into the drinking water, the increase in body weight was highly significant (p<0.01). The visceral organs of the birds likewise increased. Furthermore, the drip loss percentage of the broilers significantly decreased. So, a combination of vitamins C and E mixed together with organic acids can result in improved growth performance and better meat quality in broilers raised under tropical conditions.
  Tanachot Pengsawad , Chaiyapoom Bunchasak , Choawit Rakangthong and Theerawit Poeikhampha
 

Background and Objective: Banana can be used as a dietary energy due to carbohydrate and high contents of sugars. In addition, the fructo-oligosaccharide in banana may be useful as a prebiotic. Thus, this study was conducted to evaluate the effect of banana (Musaparadisiaca.) in diet, on growth performance and intestinal morphology of nursery pigs. Materials and Methods: The whole sliced dried and ground bananas were used in this study and the study was divided into 2 experiments. Experiment 1, study the energy and nutrient composition of whole dried banana. Experiment 2, study the effect of dried banana at 0, 2.5, 5.0 and 7.5% in diet on growth performance and intestinal morphology of nursery pigs. Sixty male crossbreed pigs (body weight 8.00±0.27 kg) were randomly divided into four groups with five replications of three pigs each. The pigs fed a control diet without dried banana or experimental diets using dried banana at 2.5, 5.0 and 7.5% for 6 weeks. The experimental design was completely randomized design. All data were statistically analyzed using analysis of variance. The differences between the means of groups were separated by Duncan’s New Multiple Range Test. Trend analysis from the orthogonal polynomial to test the relationship. Using the Orthogonal Polynomial Coefficient of 4 groups and two levels of linear and quadratic correlation were tested. Results: The results showed that the average daily gain, feed intake and feed conversion ratio did not influence by dried banana (p>0.05). In addition, white blood cells count Neutrophils:Lymphocytes and intestinal pH were not influenced by the dietary treatments. Moreover, the dietary treatments did not influence villous height and crypt depth in the small intestine of pigs (p>0.05). Conclusion: It can be concluded that dried banana can be substitution in feed and be useful as a feedstuff. The incorporation of dried banana up to 7.5% in feed contributed without negative effect on growth performance and small intestinal morphology of nursery pigs.

 
 
 
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