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All Journal JURNAL PETERNAKAN JITRO (Jurnal Ilmiah dan Teknologi Peternakan Tropis)
Yusuf Subagyo
Faculty of Animal Science, Jenderal Soedirman University, Purwokerto, Indonesia
Agriculture, Biological Sciences & Forestry Veterinary

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The Protein-Energy Synchronization Index of The Tropical Legumes for Ruminants Afduha Nurus Syamsi; Merryafinola Ifani; Yusuf Subagyo
Jurnal Peternakan Vol 19, No 1 (2022): Februari 2022
Publisher : State Islamic University of Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jupet.v19i1.15415

Abstract

ABSTRACT. The study was aimed to assess protein-energy synchronization (PES) index of the tropical legumes as feed for ruminants. The research was carried out experimentally in two stages. The first stage was measured the nutritional value of legumes using the proximate method. All types of legumes had been dried (at 600C for 3 days) and grinded. The second stage is to calculate the PES index based on the average degradation of g protein and Kg of organic matter (OM) per hour for each legume. Protein degradation and OM were measured at 2, 4, 6, 8, 12, 24, 48, and 72 hours of observation. The results of the degradation observations at each hour were analyzed by linear regression to obtain the average degradation per hour, then the results were included in the calculation formula of the PES index. The PES index of each legume was discussed descriptively. The analysis showed that legume is a source of fiber with an average crude fiber of 18% and a high protein content of 23.23%. Based on the calculation of the PES index Leucaena leucocephala (0.34) and Calliandra calothyrsus (0.31) are at a low level, while Indigofera (0.48), Sesbania grandiflora (0.42), and Gliricidia sepium (0.47) are at the medium level. This difference was caused by differences in the rate of degradation of protein and organic matter of each legume, besides the presence of antinutrients greatly affected the resulting PES index. The research concluded that the tropical legumes in ruminant feed has the PES indexes at low to medium levels.
The Quality Changed of Dairy Cow’s Milk Adulterated by Water: In Chemical Milk Studies Afduha Nurus Syamsi; Yusuf Subagyo; Lis Safitri
Jurnal Ilmu dan Teknologi Peternakan Tropis Vol 10, No 1 (2023): JITRO, January 2023
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jitro.v10i1.27777

Abstract

The study aimed to obtain a comprehensive description of the chemical quality decrease of milk adulterated with water from different sources. Experimental research was carried out at the Dairy Production Laboratory, with the main material being milk from the Experimental Farm, Faculty of Animal Science, Unsoed. The study used a completely randomized design (CRD)-factorial. Factor A was three types of milk (no adulterated milk (NA), adulterated by farm water (AFW), and adulterated by house water (AHW)). Factor B was six times of storage (0; 4; 8; 12; 16; 20 hours). There were 18 treatments, each repeated three times. Thus, there were 54 units. Milk quality was observed at controlled room temperature, namely the average temperature of Purwokerto City (300C) in the incubator. Data were analyzed for variance and further tested for linear regression. The analysis of variance showed that the interaction between the type of adulteration and storage time had a very significant effect (P
Co-Authors Afduha Nurus Syamsi Afduha Nurus Syamsi Lis Safitri Merryafinola Ifani