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Articles by Sumiati
Total Records ( 9 ) for Sumiati
  Abdul Rohim , Ubud Salim , Made Sudarma and Sumiati
  The study of small firms in Indonesia become more strategic issue because of job creation and generating income for more then 65% of are small entrepreneurs that encouraging employment in many type of small industries including handicraft. However, unfortunately, some conditions of small industries are less competitive to have expanding their products. This research is to conduct and investigates the cability of Innovation and creativity as the main component as mediation of business strategy and the quality of intellectual capital to drive business performance of small size industries in Jombang Regency East Java Indonesia. This research have found that innovation capability is the most important latent variables that successfully mediated business strategy and intellectual capital to have strongly impact to business performance of small size industries in Jombang Regency East Java Indonesia.
  Widya Hermana , Toto Toharmat , Sumiati and Wasmen Manalu
  Katuk (Sauropus androgynus) and mulberry (Morus alba) leaves meal contain cholesterol, campesterol, stigmasterol, sitosterol and 2-4alpha-methylsterol. These active substances were expected to increase nutrients metabolism in laying poultry including quail. Poultry in layer period have high nutrients requirement and mobilization. Usage of Katuk and mulberry leaves meal in the diet was expected to increase egg quality. Four dietary treatments and 5 replications of 15 quails of 6 weeks of age each, were allocated in a completely randomized design. Parameters observed were feed consumption, egg weight, quail day production and egg quality. The results showed that feed consumption and egg weight were not affected by the treatments, while egg production was significantly decreased by feeding the 10% mulberry leaf meal as well as the mixture of 5% Katuk and mulberry leaf meal (P < 0.05). Feeding 10% Katuk leaf meal did not affect the performances of the quail but the egg indicated the highest vitamin A and yolk colour score. It was concluded that 10% Katuk leaf meal could be fed to the laying quail to increase the egg quality without decreasing the production.
  N.A. Hartono , Nahrowi and Sumiati
  This study was conducted to investigate the relationship between starch and amino acid levels of broiler diets on growth performance and feed efficiency. In this study, 240 day old chicks were distributed into 6 treatments using a completely randomized design (CRD) with four replications. Three treatments were fed with high starch and three others were fed with low starch. Both type of diets were formulated as isocaloric with three levels of total lysine, varying from 1.34, 1.43 and 1.48% for starter period (0-18 days) and 1.18, 1.3 and 1.35% for finisher period (19-35 days). The result showed that high starch level increased body weight gain (p < 0.01) and feed intake at 35 days (p < 0.05). No interaction between starch level and amino acid level was observed for body weight gain, feed intake and feed conversion ratio at 35 days. There was no difference for blood parameter glucose. Uric acid and insulin was affected by starch and amino acid level. Significant interaction between starch level and amino acid was observed for uric acid. Ratio starch and amino acid were positively correlated with weight gain and feed consumption (r = 0.573, p < 0.05). It was concluded that feeding high starch level based on corn soya diet increased body weight gain and feed intake. Starch level has relationship with blood glucose, insulin and utilization of protein and energy in broiler.
  R. Palupi , L. Abdullah , D.A. Astuti and Sumiati
  The aim of this research was to produce functional eggs that high antioxidant through substitution of soybean meal with Indigofera sp., top leaf meal in the laying hen diets. One hundred and sixty laying hens of Isa Brown strain, 30 weeks of age were kept into individual cages. Completely randomized design was used in this experiment, with 4 treatments and 4 replications. The treatment diets contained four kind combination of soybean meal (SBM) and Indigoferasp., top leaf meal (ITLM): T0 = diet contained 20% SBM and 0% ITLM; T1 = diet contained 17% SBM and 5.2% ITLM; T2 = diet contained 14% SBM and 10.4 ITLM; T3 = diet contained 11% SBM and 15.6 ITLM. The parameters observed were feed consumptions, egg production, egg quality and antioxidant activity. The results showed that substitution of soybean meal with Indigofera sp., top leaf meal not significantly (p>0.01) affected to feed consumptions, but significantly (p < 0.05) increased eggs production (83.63 to 92.65%), high significantly (p < 0.01) increased yolk colour, beta-carotene as well as vitamin A and decreased cholesterol content of the yolk. It was concluded that Indigofera sp., leaf meal could be used until 15.6% or substitute 45% soybean meal protein in the laying hen diets.
  T. Pasaribu , D.A. Astuti , E. Wina , Sumiati and A. Setiyono
  Sapindus rarak is a species of soapberry and in Indonesia the trunks commonly used as board cast, match sticks and wooden crafts and the saponin containing fruits are used as a detergent for traditional clothes (called batik). Saponin has biological activity to damage protozoa. The study has been carried out to investigate the effects of particle size and type solvent on the concentration of saponin extracted from the Sapindus rarak pericarp powder (SRP) and to evaluate the activity of SRP on oocysts of Eimeria tenella in vitro. Completely randomized design with 2 factors was arranged to analyze saponin content. First factor was type of solvent, i.e., 70% methanol and water. Second factor was particle sizes of SRP, i.e., 75, 300 and 600 μm and the saponin analyses of each treatment was done in triplicates. Determination of total saponin as described by Hiai and Nakajima and total sapogenin according to Hiai method with some modification. In vitro assay was performed at several concentrations of SRP in water (100-0.01 mg/mL). Results showed SRP with 75 μm particle size showed the highest foam height and the highest total saponin content compared to those having 300 and 600 μm of particle size. Solvent and particle size significantly affected saponin content. Saponin content of SRP was higher when it was extracted with 70% methanol (35.98%) than extracted using water (32.53%). SRP with 75 μm particle size had higher saponin content (43.52%) than those with 300 and 600 μm particle size (37.54 and 21.71%). Sapogenin content extracted with 70% methanol and water was not significantly different (30.55 and 30.36%), but particle size affected the sapogenin content. At 75 μm particle size, the sapogenin content was significantly higher (35.51%) than 300 and 600 μm particle size (33.46 and 22.40%). The SRP with concentration of 100-1 mg/mL water inhibited sporulation of E. tenella oocysts more than 90%. It is proved SRP has the ability to destroy the development of Eimeria tenella.
  Kasiyati , Sumiati , Damiana Rita Ekastuti and Wasmen Manalu
  Backgroud: The biosynthesis of vitellogenin as an egg-yolk precursor in oviparous animals is occurred in the liver cells. The vitellogenin synthetic capacity of hepatocyte is under the control of estrogen that its secretion increase when the oviparous animals reach sexual maturity. This experiment was designed to study the uses of curcumin and artificial monochromatic light on liver performance to improve vitellogenin synthesis to support egg production during laying period. Materials and Methods: One hundred and ninety two female magelang ducks were assigned into a completely randomized design with a 4×4 factorial arrangement. The first factor was dose of curcumin supplementation consisted of 4 levels i.e., 0, 9, 18 and 36 mg. The second factor was the color of monochromatic light consisted of 4 levels i.e., white, red, green and blue. Results: The results showed the interaction effects between curcumin and monochromatic light on the liver weight, hepatocytes diameter, DNA and RNA concentrations in the liver cells (p<0.05). Serum estradiol and vitellogenin concentrations in female magelang ducks during sexual maturity prior to laying period ranged from 0.06-0.19 and 0.36-3.46 mg mL–1, respectively. Curcumin supplementation at doses of 18 and 36 mg duck–1 day–1 increased the diameters of F1 follicles by 21.62 and 17.91%, respectively. Conclusion: It is concluded that curcumin supplementation at a dose of 18 mg duck–1 day–1 combined with the use of red or greenlight can improve the biosynthesis capacity of egg yolk protein precursors by liver cells without increasing liver cells proliferation. Moreover, the increased estradiol during vitellogenesis is also necessary in the recruitment of ovarian follicles in establishing the F1 hierarchical follicles.
  Sumiati , A. Darmawan and K.G. Wiryawan
  Objective: The aim of this study was to investigate the effect of feeding diets containing different amounts of omega-3 and omega-6 fatty acids and organic zinc on egg quality and blood hematology. Methodology: Ninety Magelang laying ducks of 21 weeks old were randomly divided into 18 experimental units in a completely randomized design with 6 treatments and 3 replications. The treatment diets included the following: R0 = Diet without palm oil, fish oil or organic zinc with ratio of 1:5 omega-3 and omega-6, R1= Diet with ratio of 1:1.5 omega-3 and omega-6+200 ppm organic zinc, R2 = Diet with ratio of 1:3 omega-3 and omega-6+200 ppm organic zinc, R3 = Diet with ratio of 1:4.5 omega-3:omega-6+200 ppm organic zinc, R4 = Diet with ratio of 1:6 omega-3 and omega-6+200 ppm organic zinc, R5 = Diet with ratio of 1:7.5 omega-3 and omega-6+200 ppm organic zinc. Results: The R2 treatment decreased significantly (p<0.01) yolk cholesterol but the highest value of vitamin A was resulted by R5. The best ratio of omega-3 and omega-6 was produced by R2 (1:3.4). The R1 treatment resulted the lowest heterophil to lymphocyte ratio. Conclusion: Conclusively, feeding diets with ratio of omega-3:omega-6 fatty acids of 1:3+200 ppm organic zinc produced the best ratio of omega-3:omega-6 in yolk as well as increased vitamin A content, decreased yolk cholesterol content and did not interfere ducks physiologically.
  Abdullah W. Jabid , Moeljadi , Nur Khusniyah Indrawati and Sumiati
  This research is developed the causal relationship between variables using quantitative approach. The population in this study were collected form echelon IIb, IIIa, IIIb, IVa and IVb officials in the local device work unit (SKPD) and certain skilled structural officers with 698 people. The sample size in this study were 254 randomly selected samples. The study period from May-June, 2016. Analysis method to answer the hypothesis in this research is Smart Partial Least Square (SmartPLS) Version 3.0. The results of the study show that to increase knowledge sharing activities and individual can be given by the amount of reward given/received such as remuneration (according to local performance allowance) in accordance with the target performance. This study found that the impact of remuneration will be higher if in an increasingly high working environment and will increase higher when in the work environment. It can not always be higher if in a non-existent work environment that will always be high will be added higher when in the work environment. The results of this study also explain the culture and culture does not moderate remuneration relationships by sharing knowledge but the culture of the market directly.
  Jola J.M.R. Londok , Wasmen Manalu , Komang G. Wiryawan and Sumiati
  Background: Besides as an energy source, coconut oil with its lauric acid content can improve the growth performance, carcass characteristics and fatty acids profile of broiler chickens. Conventional processing of coconut oil is susceptible to hydrolytic oxidation that reduces its antioxidant content. Areca vestiaria Giseke (AV) with its phenol content acts as a natural antioxidant in the diet. Materials and Methods: Two hundred and forty day-old unsexed Lohmann broiler chicks (MB-202 P) were divided into 24 experimental units (ten chicks/unit) and arranged in a completely randomized design with a 2×4 factorial arrangement. Each experimental unit was repeated 3 times each with ten chicks. The first factor was the source of lauric acid in the ration consisted of 2 levels i.e., coconut oil and pure lauric acid. The second factor was dose of antioxidant consisted of 4 levels i.e., 0 [without antioxidant (AV and lauric acid) supplementation], AV at a dose of 625 mg kg–1 ration, AV at a dose of 1250 mg kg–1 ration and tocopherol at a dose of 200 ppm). Parameters measured were growth performance, carcass characteristics and fatty acid profiles of broiler breast meat. Results: On the first stage trial, AV can be used as a source of natural antioxidant in the diet of broiler. The feeding trial showed that the treatments highly significantly affected (p<0.01) weight gain, feed consumption, feed conversion ratio, breast weight/eviscerated weight percentage, abdominal fat weight/eviscerated weight percentage and significantly affected (p<0.05) dressing percentage. Low growth performance and carcass characteristics in broiler chickens supplemented with vitamin E were assumed to be caused by the inhibition of absorption. Fatty acids in feed after consumption will be relatively unchanged in body tissue. Lauric acid can be deposited in breast meat. Conclusion: AV as a source of natural antioxidant can be used as a supplement in broiler ration containing coconut oil as a source of lauric acid.
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