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Articles by Herawati
Total Records ( 4 ) for Herawati
  This experiment was conducted to know the production performance and organs condition of broiler fed supplemented with red ginger (Zingiber officinale Rosc) as phytobiotic, Two hundred broiler chickens of 5 days old were divided into 5 different feed treatment groups, namely: control feed without red ginger (R-0) and treatment feeds (R-0.5, R-1.0, R-1.5 and R-2.0 which were control feed with 0.5, 1.0, 1.5 and 2.0% red ginger, respectively). Each group was divided into 5 sub groups as replication, consisted of 8 chickens each. The chickens were raised for five weeks. All chickens were weekly weighed and feed consumption was daily measured in each sub-group. After 35 days old, the chickens were slaughtered then the breast muscle, liver, kidney and proventriculus were taken for histological observation. Data obtained were subjected to analysis of variance of Completely Randomized Design one way classification and Duncan=s New Multiple Range Test. The result showed that the production performance of broiler fed supplemented with red ginger showed higher body weight (p<0.05), lower total feed intake (p<0.05). The use of 2% red ginger in the ration gave higher body weight, lower total feed intake and lowest changeover on the muscle, liver, kidney and proventriculus conditions.
  Herawati and Marjuki
  The research aimed to evaluate the potency of Red Ginger (Zingiber officinale Rosc) as a source of phytobiotic in the ration to increase physical quality of broiler meat. Two hundred of five days old broiler chickens were plotted into five different groups and each group was further divided into five sub-groups. Each group was given different rations, i.e.: R-0 (control ration without red ginger added); R-0.5, R-1.0, R-1.5, and R-2.0% (control ration added with red ginger at level 0.5, 1.0, 1.5, and 2.0% of the ration, respectively). All rations were designed as iso-protein ration with CP content of 21.0-23.0%, iso-caloric with energy content of 3150 kcal ME/kg, Ca 1.0%, and P 0.5%. The broilers were raised for 5 weeks. After five weeks all broilers were slaughtered and weighed to get data for carcass quality (slaughter weight, carcass weight, carcass percentage, fat weight and fat percentage) and the data of meat physical quality including pH, tenderness, water holding capacity (WHC), cooking loss (CL). The collected data were subjected to analysis of One Way Classification of Completely Randomized Design (CRD) and Duncan’s New Multiple Range Test (DMRT). The result showed that broilers given ration with red ginger showed significantly higher slaughter weight (P<0.05) and carcass percentage (P<0.01) but lower fat weight (P<0.05) than broilers given ration without red ginger. Feeding red ginger in the ration as treatment slightly increased pH and tenderness of broiler meat but decreased water holding capacity and cooking loss as compared to those in the control treatment without red ginger in the ration. Feeding of red ginger phytobiotic feed additive increased productive performance, carcass and meat quality of broiler. Feeding the phytobiotic feed additive at level 1.0 to 1.5% looked to be the most optimum level for those purposes. Further researches have to be conducted to evaluate the potential of red ginger as a source of phytobiotic feed additive to replace the chemical antibiotics.
  Herawati and Gatot Adiwinarto
  The objective of this research was to determine the relative growth rate of carcass and their components of Broiler Strain Cobb which were kept at different temperatures. Used 90 male broiler chickens with an average body weight 736.57±39.16 grams. “Split plot” form of the series on home treatment with three different temperatures T1 (34-36°C), T2 (29-32°C) and T3 (20-24°C) was used to analyze the date. The research used RAL basic design, every test was subject to withholding of 3 ages of 28, 35 and 42 days. The parameters studied were the relative growth rate of the chest, thigh, upper thigh, meat and bone. The results showed that the relative growth rate of carcass weight increased and followed with growth of life. At 20-24°C carcass maintenance grew faster (ß>1) from the live weight growth, at all temperatures 34-36°C and 29-32°C carcass growth was equal to the live weight growth (ß=1), relative growth of the chest was similar with the live weight growth, at the temperature of 34-36°C, 29-32°C and 20-24°C, the growth rate of the upper thigh ("thigh") was relative with the live weight growth, which shows the value of ß=1, meaning that growth is equal to the live weight growth, relative growth rate of meat at 20-24°C was more rapid than the growth of carcass (ß>1), but generally at a temperature of 34-36°C, 29-32°C and 20-24°C the growth rate was same as the growth rate of carcass, (can be seen from the value ß=1). The conclusion for the relative growth rate of organs is generally similar to the live weight growth and carcass weight at various temperatures of maintenance. Relative growth rate is faster than the live weight growth at temperature of 20-24°C. Relative growth rate of beef is faster than the live weight growth of carcasses at a temperature of 20-24°C.
  Anwar Mallongi , Fadly Nur Rahman Umar , Atjo Wahyu , Muh. Saleh , Fatmawati , Abdul Muhith , Herawati , Muhammad Ridwan , A.L. Rantetampang and Yacob Ruru
  The amount of exhaust emissions resulting from the burning of motor vehicles caused the air in the city of Makassar to be polluted. This study aims to estimate the concentration of Sulfur dioxide (SO2) and Nitrogen dioxide (NO2) for 10 years (2017-2027) on the main road of Makassar city. This research is an observational analytic research with dynamic system model approach. Results showed that in the next 10 years, the estimated total concentration of total Sulfur dioxide (SO2) in the first scenario without do nothing in 2017 of 6.44 μg/Nm3 increased by 2027 by 8,581 μg/Nm3 by multiples of increased concentration 61.58 times/month and an annual increase of 1.80 times/year whereas the estimated concentration of Nitrogen dioxide (NO2) in the absence of control measures increased from 2017 by 4.99 μg/Nm3 increased by 2027 by 7,934 μg/Nm3 by multiples of increased concentration 37.6 times/month. Application of Second Scenario (2) has decreased total concentration of Sulfur dioxide (SO2) and Nitrogen dioxide (NO2) when compared to total concentration in first scenario (I). Increasing the concentration of Sulfur dioxide (SO2) in 2017 by 6.44 μg/Nm increased by 2027 by 3785 μg/Nm3 with total monthly concentration increase of 37.4 times/months and total annual concentration increase of 0.72 times/year. Effectiveness in the second scenario in reducing the concentration of Nitrogen dioxide (NO2) by 22.72%. Application of the third scenario (3) there is a significant decrease in the concentration of sulfur dioxide and nitrogen dioxide when compared to the first scenario (1). Effectiveness in the third scenario (3) in reducing sulfur dioxide concentration of 66.43%. Implementation of the fourth scenario (4) passenger shift for the use of bus rapid transportation (bus rapid transportation) with the aim of decreasing the volume of vehicles operating on the main road, if it is assumed that 50% of passengers switch to BRT bus, BRT passengers in 2027 will be 3960/days.
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