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Articles by Tri Yuwanta
Total Records ( 7 ) for Tri Yuwanta
  Dattadewi Purwantini , Tri Yuwanta , Tety Hartatik and Ismoyowati
  This research aimed to determine mitochondrial DNA (mtDNA) D-loop region polymorphism and phylogenetic in five Indonesian native ducks population namely Magelang duck, Tegal duck, Mojosari duck, Bali duck and Alabio duck. The significance of this research was applicable to conservation and refinement strategy as well as the improvement of genetic quality by utilizing the available native duck plasma nutfah. It further concerned with determining the genealogy of family, channel, breed or maternal inheritance that bred individuals in native duck population in Indonesia and discovering phylogenetic relations with Mallards duck (Anas platyrhynchos) and the other Anas ducks. Fragment of 718-bp was amplified by PCR and determined the nucleotide sequence of 701-bp. The sequence was then analyzed using Single Nucleotide Polymorphism (SNP) and compared to the standard nucleotide sequence from Anas Platyrhynchos complete genome (HM010684.1) in GenBank Accession. It obtained nucleotide percentage equation of 93.59±8.23%. Phylogenetic investigation used sequencing products and was analyzed using MEGA5 software. Indonesian native ducks have a relatively close genetic relationship with Anas Platyrhynchos and Anas zonorhyncha shown by the genetic distance varying from 0.000-0.786 compared to the other Anas ducks in the world (0.073-1.037) or to Cairina moschata (2.972-5.776). Highly distant genetic variation was found in Magelang duck compared to the other native ducks ranged from 0.000-0.950 to 0.000-0.312. The research concluded that polymorphism of mtDNA D-loop region was found in Indonesian native ducks and had relatively similar maternal inheritance with Anas platyrhyncos dan Anas zonorhyncha.
  Sri Kismiati , Tri Yuwanta , Zuprizal and Supadmo
  The aim of the research was to study the microstructure changes of egg shell waste treated with H3PO4 and its effect on in vitro solubility and egg shell quality of laying hens. Egg shell waste was soaked in water with the temperature of 80°C, drained and divided into 4 parts. Part 1 was sun dried (control), part 2 was soaked in H3PO4 3%, part 3 was soaked in H3PO4 4% and part 4 was soaked in H3PO4 5%. Furthermore, egg shells were drained, sun dried and then grinded to a particle size of 1 and 3 mm and used in the feed of laying hens. A total of 96 twenty-five weeks old of laying hens (ISA Brown strain) were divided into 8 experimental dietary treatment in 4 x 2 factorial arrangements with 3 replication. Results of the research showed that the concentration of H3PO4 effected on egg shell microstructure changes and interaction of H3PO4 3 and 4% and particle size 1 mm was increased in vitro solubility. Concentration of H3PO4 and particle size had not significantly effect (P>0.05) on calcium intake, egg shell weight and egg shell percentage but significantly effect (P<0.05) on phosphorus intake and egg shell thickness. Egg shell thickness was increased at H3PO4 5% and particle size 3 mm. The research concluded that H3PO4 resulted in microstructure changes and in vitro solubility but did not change the quality of the egg shell, except egg shell thickness.
  Elly Tugiyanti , Tri Yuwanta , Zuprizal and Rusman
  Tenderness is determined by the growth and size of muscle fibers, which can be arranged through the feed. The current study was designed to investigate protein and metabolic energy level on performance including meat quality and muscle fiber size of male muscovy ducks. Five protein levels and metabolic energy of feed treatments (13% and 2300 kcal/kg, 15% and 2500 kcal/kg, 17% and 2700 kcal/kg, 19% and 2900 kcal/kg, 21% and 3100 kcal/kg) and 100 male dod of muscovy ducks were administered in this research. Protein and metabolic energy level significantly affected (p<0.01) carcass weight, feed conversion ratio, abdominal fat percentage, physical meat quality and muscle fiber diameter. Feed with 21% protein and 3100 kcal/kg metabolic energy resulted in good performance (1342.60±2243.62 carcass weight, 4.00±0.64 feed conversion and 68.86±5.59% carcass percentage), physical meat quality and large muscle fiber diameter of 50.59 μm, but comparatively high abdominal fat level of 5.60±0.71.
  Sri Purwanti , Zuprizal , Tri Yuwanta and Supadmo
  This research was conducted to evaluate the effect of turmeric water extract, garlic and combination of turmeric and garlic as a feed additive in the broiler diet on performance and duodenum histomorphology. Affectivity of treatments was assessed by addition of phytobiotic (control, 015% zinc bacitracin, 2.5% TE, 2.0% GE, 2.5% TGE) which were arranged in a Completely Randomized Design with 4 replications. The variables measured were duodenum histomorphology (villi height, villi surface area, crypt depth, ratio villi height to crypt depth) and performances (body weight gain, feed intake, FCR). Results showed that diet with 2.5% of TE, 2.0% of GE and 2.5% of TGE significantly increased (p<0.01) the duodenum histomorphology as compared to positive control and negative control. The highest villi height was attained by feeding 2.5% TGE (1726.67 μm) and villi surface area (5054.17 μm2.) and the lowest was attained by feeding positive control 1005 μm and 1395.66 μm2.No significant differences (P > 0.05), were observed in body weight gain and FCR beetwen different treatments, but the negative control feed intake increased significantly (P < 0.05), compared to the positive control. The research concluded that the incorporation of 2.5% TE, 2% GE and combined 2.5% TGE as feed additive enhanced duodenum histomorphology without no side effects on performances in broiler chicks.
  Sundari , Zuprizal , Tri Yuwanta and Ronny Martien
  This research investigated the effects of levels turmeric extract nanocapsule or nanoparticle (NP) in ration on broiler performance and fat deposition. Seventy-two Lohmann broilers chicks were randomly divided into 6 treatments with 3 replications, each complied 4 broilers. Six treatments were Basal ration+bacitracin 50 ppm (T0), Basal-Ration/BR (T1), BR+nanocapsule 0.2% (T2), BR+nanocapsule 0.4% (T3), BR+nanocapsule 0.6% (T4), BR+nanocapsule 0.8% (T5). The analyzed variables covered production performances (feed consumption, weight gain, feed conversion ratio (FCR), carcass weight), fats deposition (abdominal fat, subcutaneous fat, EPA, DHA, total cholesterol). The data were subject to one way ANOVA analysis followed by Duncan test in case of significant effect. Results showed that the nanocapsule levels significantly (p<0.01) affected abdominal fat, increased meat EPA and DHA. It showed significant (p<0.05) effects on subcutaneous fat, total cholesterol of liver and weight gain, but no significant (p>0.05) effects on feed consumption, FCR and carcass weight. Accordingly, 0.4% turmeric extract nanocapsule, equal to 50 ppm bacitracin, was a compatible feed additive for broiler chicken ration to improve the meat quality of DHA-enriched and least-subcutaneous fat without negatively affecting performance.
  Ahmad Subhan , Tri Yuwanta , Zuprizal and Supadmo
  This research was conducted to evaluate apple snails as a source of fatty acids in Alabio duck feed. There are 180 female Alabio ducks, 22 weeks old, placed in 9 levels of using apple snails in feed R0 (control), R1 (2.5% swampy apple snails + basal feed), R2 (5% swampy apple snails + basal feed), R3 (7.5%, 2.5% swampy apple snails + basal feed), R4 (10% swampy apple snails + basal feed), R5 (2.5% tidal swampy apple snails + basal feed), R6 (5% tidal swampy apple snails + basal feed), R7 (7.5%, 2.5% tidal swampy apple snails + basal feed) and R8 (10% tidal swampy apple snails + basal feed), which are arranged based on a Completely Randomized Design with 4 replications. The variables that are measured were carcass weight, feed conversion, egg production, blood cholesterol profile (triglycerides, LDL, HDL and cholesterol), as well as meat and egg cholesterol. The research results reveal that using apple snails in Alabio duck feed has increase significantly (p<0.05) egg production, feed conversion, as well as a reduction in LDL level, meat cholesterol and egg cholesterol. However, no significant difference (p>0.05) was observed towards carcass weight, abdominal fat, triglycerides, HDL and blood cholesterol. A subsequent test is done with a Duncan Multiple Range Test to show that using at least 5% of swampy apple snails produce the highest egg production with the lowest meat and egg cholesterol levels.
  Zuprizal , Tri Yuwanta , Supadmo , Andri Kusmayadi , Ari Kusuma Wati , Ronny Martien and Sundari
  This research investigated the effects of liquid turmeric extract nanocapsule levels in drinking water on broiler performance and total cholesterol. Eighty-four Lohmann broilers chicks were randomly divided into 7 treatments with 3 replications, each with 4 broilers. Seven treatments were drinking water (DW) + additive bacitracin 12 mg/1000 ml (P1), DW only (P2), DW + 2% nanocapsule (P3), DW + 4% nanocapsule (P4), DW + 6% nanocapsule (P5), DW + 8% nanocapsule (P6) and DW + 10% nanocapsule (P7). The analyzed variables covered production performances (weight gain, feed consumption, feed conversion ratio and water consumption) and total cholesterol (serum, meat and liver). The data were subject to one-way ANOVA analysis followed by Duncan’s test in case of significant effect. The results showed that nanocapsule levels significantly (p<0.05) affected on weight gain, feed consumption, total cholesterol of meat and liver. It showed no significant (p>0.05) effects on feed conversion, water consumption and total cholesterol of serum. Accordingly, 2% liquid turmeric extract nanocapsule, equal to 1.73 mg/100 ml curcumin, was a compatible feed additive for drinking water of broiler chicken to improve the feed efficiency and total cholesterol of meat and liver without negatively affecting performance.
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