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All Journal INVOTEC Tropical Animal Science Journal
S. Subekti
Fakultas Teknik/ Teknik Lingkungan Universitas Pandanaran Semarang
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Energy

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The Implementation of Work-Based Learning for the Development of Employability Skills of Vocational Secondary School Students Through Teamwork Activity Subekti, S.
INVOTEC Vol 15, No 1 (2019)
Publisher : Faculty of Technological and Vocational Education-Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/invotec.v15i1.16058

Abstract

This study aims to investigate the contribution of teamwork activity through work-based learning to the development of employability skills of SMK (Vocational Secondary School) students. A survey method was employed in this study. The subject of this research are SMK students majoring in farm produce processing agribusiness with bakery competency in Garut. The findings of the study revealed that teamwork activity gives a positive contribution to employability skills of SMK students through the implementation of work-based learning. The contribution of work-based learning to employability skills in the aspect of teamwork is quite significant at the value of 63.5%. The study lead to the conclusion that the implementation of teamwork activity through work-based learning can develop employability skills of SMK graduates.
The Improvement of Broiler Performance with Modification of Particle Size and Palm Kernel Meal Levels Setiana, I.; Nahrowi; Sumiati; Subekti, S.
Tropical Animal Science Journal Vol. 48 No. 2 (2025): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2025.48.2.139

Abstract

Palm kernel meal (PKM) is a by-product of palm oil production and can be used as an energy source in broiler feed. However, the utilization of PKM in broiler feed has yet to be optimal due to its low nutrient digestibility. This study aims to evaluate the particle size and the levels of PKM in the feed to increase broiler performance. The particle sizes used in this study were 2.5 and 1 mm, and the levels were 5%, 10%, and 15%. An in vivo study was conducted using 1,440 Ross 308 broilers day 0-35, with an average initial weight of 47 grams. The study employed a completely randomized factorial design of 2x3, divided into 6 treatments consisting of (T1) 2.5 mm at 5% PKM as a control, (T2) 1 mm at 5% PKM, (T3) 2.5 mm at 10% PKM, (T4) 1 mm at 10% PKM, (T5) 2.5 mm at 15% PKM, and (T6) 1 mm at 15% PKM on feed. The studied variables were body weight (BW), feed intake (FI), feed conversion ratio (FCR), European production efficiency factor (EPEF), and carcass quality. Increasing PKM levels decreased the pellet durability index of broiler feed. During the starter stage (days 0-21), 1 mm PKM significantly improved FCR (p<0.05) compared to 2.5 mm, although PKM levels did not significantly affect broiler performances. In the finisher stage (days 22-35), 15% of PKM levels negatively impacted FCR and EPEF. Overall, from 0-35 days of age, the best broiler performances showed by treatment T2 with 1 mm particle size and 5% PKM.
Co-Authors Nahrowi Setiana, I. Sumiati