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All Journal Jurnal Akademika Kimia
Suherman Suherman
Pendidikan Kimia P. MIPA Fakultas Keguruan dan Ilmu Pendidikan (FKIP)
Chemistry Education

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Utilization of Chitosan as an Animal Feed Supplement and Its Effect on Fattening of Organic Rooste (Gallus domestica sp) Firdamayanti Firdamayanti; Suherman Suherman; Minarni Rama Jura
Jurnal Akademika Kimia Vol 8, No 1 (2019)
Publisher : Universitas Tadulako

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Abstract

Chitosan has functional groups of an amine group (-NH2) that acts as a coagulant dyestuff, a protein binder, and an amino acid; and a hydroxyl group (-OH). The present of these functional groups cause high chemical reactivity of chitosan. Chitosan can be used as a dietary supplement of rooster. This study aimed to determine the effect of chitosan as a dietary supplement on fattening rooster. Fattening rooster can be seen from an increase of weight per week. This study provided bran as much as 200 gr/animal/day, then the bran was added with chitosan solutions as each concentration. The results obtained for the chicken A which given bran with chitosan solution increased in body weight of 0.1 kg at the first week, while for the chicken given bran without chitosan increased in body weight of 0.1 kg at the third week. For the chicken B which given bran with chitosan increased in body weight of 0.1 kg at the first week, while for the chicken given bran without chitosan increased in body weight of 0.1 kg at the second week. Based on the data for ± 1 months of study obtained that good chitosan concentrations used in this study for the chicken A were at concentrations of 6% and 8% by increasing each of 0.5 kg, while for the chicken B was at a concentration of 6% by increasing of 0.6 kg.
Utilization of Chitosan as an Animal Feed Supplement and Its Effect on Fattening of Indigenous Chicken Nur Hakiki; Suherman Suherman; Paulus H Abram
Jurnal Akademika Kimia Vol 8, No 2 (2019)
Publisher : Universitas Tadulako

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Abstract

Feeding types to chickens influence on the fattening speed. The purpose of this study is to determine the influence of chitosan in the mixture of chicken feed on fattening of indigenous chickens. This study applied chicken feed as a mixture of corn and chitosan in various concentration of 0%, 2%, 4%, 6%, 8%, and 10% it was given on the morning, afternoon and early evening. The results showed that the weight of chickens fed only with animal feed and without the addition of chitosan is smaller than that of chicken fed with the addition of chitosan. The use of chitosan in livestock feed influence on the chicken weight gain in 1 week by 0.1 kg.
The Influence of Problem Based Learning Model (PBL) Using Lesson Study (LS) Pattern on Quality of Chemistry Learning in SMAN 1 Banawa Nur Hikmah; Paulus Hengky Abram; Suherman Suherman
Jurnal Akademika Kimia Vol 8, No 1 (2019)
Publisher : Universitas Tadulako

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Abstract

This study aimed to determine the effect of problem based learning model (PBL) using Lesson Study (LS) pattern on the quality of chemistry learning at SMAN 1 Banawa. This research type was a quasi-experiment with design equivalent pretest-posttest design. The sample used in this research was the students of class XI MIPA 3 as the experiment with the amount of 32 students and students of class XI MIPA 4 as the control class with the amount of 33 students. The result of data analysis obtained, the mean value of experiment class ( ) was 74.03 and the control class ( ) was 69.84. The average of students’ activity in the experimental and control class respectively was 56.66%, and 56.66% that was categorized as active enough. The result of hypothesis testing with two-party of t-test statistic obtained was –ttable< tcount> +ttable(tcount = 5.37 dan ttable = 1.67) with a significance level α = 0.05 and degrees of freedom 63, H0 was rejected and Ha was accepted based on the results of data analysis. So it can be concluded that there is influence of PBL model using LS pattern on the quality of chemistry learning in SMAN 1 Banawa.
Co-Authors Firdamayanti Firdamayanti Minarni Rama Jura Nur Hakiki Nur Hikmah Paulus H Abram Paulus Hengky Abram