cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Didit Budi Nugroho
Contact Email
didit.budinugroho@staff.uksw.edu
Phone
-
Journal Mail Official
ijosse@adm.uksw.edu
Editorial Address
Fakultas Sains dan Matematika, Universitas Kristen Satya Wacana, Jl. Diponegoro 52-60, Salatiga 50711, Jawa Tengah, Indonesia
Location
Kota salatiga,
Jawa tengah
INDONESIA
Journal of Science and Science Education
Published by Universitas Kristen Satya Wacana
ISSN : -     EISSN : 25983830     DOI : 10.24246
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Mathematics Physics
The Journal of Science & Science Education (JoSSE) publishes academic articles of conceptual, experimental, philosophical, theoretical and applied results, and reviews in the field of mathematics and natural sciences from the following subject areas: - Biology & Biology Education - Chemistry & Chemistry Education - Physics & Physics Education - Mathematics & Mathematics Education - Statistics - Computer Science.
Arjuna Subject : Umum - Umum
Articles 2 Documents
 1 
Search results for , issue "Vol 4 No 1 (2020): JoSSE Vol. 4 No. 1 (May 2020)" : 2 Documents clear
The Effect of White Turmeric Extract (Curcuma Zedoaria) and Lactobacillus sp Herbal Mixture as Feed Additive on Animal Productivity Yayuk Astuti; Mega Bara Cahyantari
Journal of Science & Science Education Vol 4 No 1 (2020): JoSSE Vol. 4 No. 1 (May 2020)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/josse.v4i1p1-9

Abstract

This study was conducted to determine the effect of herbal white turmeric extract (Curcuma zedoaria) with Lactobaccilus sp on the productivity of livestock. The test subjects within this study are 50 broiler chickens aged 0 days which were divided equally into two observation groups, namely the control group (A) and the treated group (B). The treatments are carried out as follows: A = no animal herbal mixture was added into the drinking water; B = drinking water was added with herbal mixture. Average body weight of the chickens were (A) 460 g and (B) 484 g, the feed conversion ratio values for chicken aged 6 and 13 days respectively are 0.696 (A); 0.644 (B) and 1.25 (A); 1.18 (B), while the performance index value (IP) of broiler chickens aged 6 and 13 days were 335 (A); 390 (B) and 272 (A); 315 (B), consecutively. In this study the addition of herb as feed additives into broiler chicken drinking water can increase the average body weight of the treatment group compared to the control group, the treatment group has a lower FCR value indicating good feed efficiency and IP values ​​above 300 implying good breeding process.
Development of Mathematical Model to Determining the Quantity of Required Alum (Al2(SO4)3.14H2O) at the Regional Water Utility Company in Pontianak (PDAM Tirta Khatulistiwa) Wahyu Febri Ramadhy
Journal of Science and Science Education Vol 4 No 1 (2020): JoSSE Vol. 4 No. 1 (May 2020)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Water in Kapuas River is the raw material for clean water used by the regional water utility company in Pontianak or PDAM Tirta Khatulistiwa. Its quality was assessed through the main parameter called turbidity. To meet the clean water standard, the raw water must be undergoing a clean water treatment named coagulation using Aluminum Sulfate or Alum (Al2(SO4)3.14H2O) as coagulants. This alum must be determined its dosage to maintain the quality of the water itself. The company was using the jar-test method in order to determine the optimum dosage of alum due to its cheap price and ease. However, this method is inefficient in terms of time and cost for the laboratory. Therefore, we proposed the mathematical models which cheaper and efficient. This model build-up based on the data relationship between the optimum dosage of alum and turbidity in the coagulation process which obtained a mathematical equation that is . The offered mathematical model has resulted in turbidity values ​​that were following the Ministry of Health Regulation in 2010.

Page 1 of 1 | Total Record : 2

 1 

Filter by Year

2020 2020


Reset
Filter By Issues
All Issue Vol 6 No 1 (2022): JoSSE Vol. 6 No. 1 (May 2022) Vol. 6 No. 1 (2022): JoSSE Vol. 6 No. 1 (May 2022) Vol 5 No 2 (2021): JoSSE Vol. 5 No. 2 (November 2021) Vol 5 No 1 (2021): JoSSE Vol. 5 No. 1 (May 2021) Vol 4 No 1 (2020): JoSSE Vol. 4 No. 1 (May 2020) Vol 3 No 1 (2019): JoSSE Vol. 3 No. 1 (May 2019) Vol 2 No 2 (2018): JoSSE Vol. 2 No. 2 (November 2018) Vol 2 No 1 (2018): JoSSE Vol. 2 No. 1 (May 2018) Vol 1 No 2 (2017): JoSSE Vol. 1 No. 2 (November 2017)