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All Journal Dinamis Jurnal Peternakan Integratif
Muhammad Ramadhan
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Transportation Veterinary

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Analysis Level of Animal Welfare Knowledge in Medan City Slaughterhouse Muhammad Ramadhan; E. Mirwandhono; A. Sadeli; Hasnudi; N. Ginting
Jurnal Peternakan Integratif Vol. 9 No. 3 (2021): Jurnal Peternakan Integratif
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1015.944 KB) | DOI: 10.32734/jpi.v9i3.8033

Abstract

Slaughterhouses has a very important role in the chain system for the availability of meat procurement. This research aims to analyze the level of knowledge of animal welfare and implementing it in Medan City Slaughter House. This research was conducted at the Medan City Slaughterhouse located on Jalan Rumah Potong Hewan, Mabar Hilir Village, Medan Deli Subdistrict, Medan City, North Sumatra in August 2021. The method used in this research is a qualitative descriptive research method.The results showed that the level of knowledge was already in the category of very good. The group of slaughterer respondents had the highest percentage of answer scores at 100% followed by animal controllers at 95.36% and cattle traders at 88.62%. The application of animal welfare aspects in the process of slaughtering cattle in Medan City Slaughterhouse is already in the category of very good with the percentage of conformity rate based on the regulations and provisions of Meat and Livestock Australia ranging from 80% to 100%.
The role of Cu element and compaction pressure on microstructure and mechanical Properties of Al-Cu binary alloy synthesized by powder metallurgy Suprianto; Muhammad Ramadhan; Almi Syafroza; Farida Ariani
Dinamis : Scientific Journal Mechanical Engineering Vol. 11 No. 1 (2023): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v11i1.11940

Abstract

Al-Cu alloys are promising material for engineering field due to their good mechanical properties. These characteristics could be obtained by addition of some elements and correct selected processes parameter. The purposes of this current study to investigate the effect of Cu contents and compaction pressure on microstructure evolution and mechanical properties of the Al-Cu alloy synthesized by powder metallurgy route. High purity Al and Cu elements are used as starting material with composition (21.0, 24.0, 27.0, 30.0, and 33.0) wt.%Cu with 210 MPa of compaction pressure. The varying compaction pressure 160, 180 and 180 MPa were carried for 15 minute holding time. Furthermore, a conventional sintering at 500oC for 1 hour holding time take place. The hardness test resulted that the increases of Cu contents was successfully improved the hardness, which is the maximum hardness 53.2 HV and 71.47 MPa of the compressive strength obtained by 33wt. Cu addition. On the other hand, the varying of compaction pressure resulted the maximum hardness and compressive strength are 25.6 HV and 60.8 MPa respectively for 200 MPa. The microstructure observation shows the increases of Cu promoted more Cu elements dispersed between the aluminum rinh matrix. The increase of compressive strength is encourages finer Al-Cu grain in the microstructure.
Co-Authors A. Sadeli Almi Syafroza E. Mirwandhono Farida Ariani hasnudi N. Ginting Suprianto