Jurnal Ilmu Produksi dan Teknologi Hasil Peternakan

Physicochemical, Microbiological, and Organoleptic Characteristics of IPB D1 Braised (Ungkep) Chicken at Different Storage Temperature and Different Storage Time

D. Nafisah, Z. Wulandari, A. Apriantini, C. Sumantri — Wed, 31 Jan 2024 00:00:00 +0700

Braised (Ungkep) chicken is one of the varieties of processed IPB D1 chicken that can be produced to increase consumer acceptance. The aim of this research was to analyze the physicochemical, microbiological and organoleptic characteristics of IPB-D1 braised chicken at refrigerator and freezer
temperatures with storage times of 0, 7, and 14 days. A factorial completely randomized design was used in this study. The pH value and Total Plate Count (TPC) were significantly influenced by storage time (P<0.05). The storage temperature factor and the interaction between temperature and storage time did not have a significant effect on all variables. The TPC value up to the 14th day was still below the maximum limit, therefore it was still safe to consume.

Egg Production and Quality of IPB D3 Chicken and It’s Repeatability Estimation

M. F. Hawari, C. Sumantri, S. Darwati — Wed, 31 Jan 2024 00:00:00 +0700

High egg production and good egg quality for IPB D3 chicken is very important to produce a lot and quality DOC, then a high repeatability value is also needed to maintain continuous DOC availability. The purpose of this study was to examine the estimated repeatability value of egg production and egg
quality as well as the production performance and quality of chicken eggs IPB D3. The observed poultry were 30 IPB D3 G3 females and 90 eggs. Repeatability values were analyzed using a variance table and egg production and quality data were analyzed descriptively. The repeatability value of egg production is 0.42 (high), the Haugh unit repeatability of egg is 0.40 (medium), the egg weight repeatability value 0.67 (high), the egg yolk score repeatability value 0.40 (medium) and the egg index repeatability value 0.95 (high). Egg weight 40.76 g, Haugh unit value 76, and egg production 44.8%.

Weight Performance of 4th Generation IPB-D3 Local Chickens Aged 1-3 Months and It`s Heritability Value

I. Galib, C. Sumantri, S. Darwati, S. Murtini — Wed, 31 Jan 2024 00:00:00 +0700

Bogor Agricultural University local chicken which named IPB-D3 is a prospective male line obtained from the chicken selection program IPB-D1. The establishment of IPB-D3 chickens aims to produce local chickens with fast growth weight. This research aims to evaluate the performance of local chickens from IPB-D3 Generation 4 (G4) and its heritability values. The observed samples include 10 males and 30 females of IPB-D3 chickens of Generation 3 (G3) aged 21-40 weeks as parent and 100 Day Old Chickens (DOC) IPB-D3 G4 up to 12 weeks old. The results obtained that IPB-D3 G4 chickens show an average body weight for males 1021.44 g and females around 648.33 g at the age of 12 weeks. The feed given to IPB-D3 G4 chickens is the same as the parents, namely it has nutrients below commercial feed because the feed given uses a mixture of local feed which are bran and corn which already used in Sinar Harapan Farm Sukabumi. Weight gain is the change in body weight that occurs over a specific period, and the weight gain of IPB-D3 G4 chickens is relatively fast, especially from the 2nd to the 3rd month, with a weight gain rate reaching 406.27 g. Growth rate from IPB-D3 G4 chickens experiences a slowdown at the age of 2 months and falls below their optimal growth rate. Another aspect to report is the mortality rate
of IPB-D3 G4 chickens, which is quite high at the DOC and female age due to environmental conditions and disease attacks. However, the mortality rate decreases with the increasing age of the chickens, and no deaths are found in 12 weeks old male chickens. The heritability value of body weight in IPB-D3 G4 chickens is high at the age of 4 weeks and can be used as a basis for selection based on body weight.

Bone Distribution in Commercial Cuts of Local Sheep Carcasses Given Indigofera Flour with Different Rearing System

A. R. Jatnika, D. Tanggasari — Wed, 31 Jan 2024 00:00:00 +0700

This study aims to evaluate bone distribution in commercial cuts of local sheep carcasses fed indigofera flour, taking into account differences in rearing systems. This study used 20 local female sheep aged 1 year with an average initial weight of around 18.3 ± 2.01 kilograms. These sheep were reared for 4 months with two types of rearing systems, namely intensive and semi-intensive. Indigofera flour and commercial concentrate were given at 07.00 in the morning, and at 11.00 grass were given in a ratio of 40:60%. This research used four different treatments, namely five sheeps that were reared semi-intensively by feeding commercial concentrates (P1SI), five sheeps were reared semi-intensively by feeding indigofera flour (P2I), five sheeps were reared intensively by feeding commercial concentrate and grass (P1SI), and five sheeps housed with indigofera flour and grass (P2I). This study used a completely randomized design with a 2x2 factorial pattern and 5 replications, and initial weight as a correction factor. The results of the study showed that sheep fed indigofera flour had a lower bone weight in commercial carcass cuts than sheep fed commercial concentrate. However, with a semi-intensive rearing system, sheep bone weight does not appear to be different.

Genetic Association and Expression of Myoglobin Gene Related to Mineral Content in IPB-D2 Chickens

Wed, 31 Jan 2024 00:00:00 +0700

Myoglobin (MB) gene encodes the protein of myoglobin, which is a protein found in muscle tissues that plays a crucial role in binding and storing oxygen. This study aimed to analyze the polymorphism of the MB gene, examine its relationship with the meat mineral content, and analyze its expression in the liver and thigh muscle tissue of IPB-D2 chicken. A total of 55 IPB-D2 chickens were used in this study. Identification of the gene polymorphism, quantification of the mineral content, and gene expression were performed using the direct sequencing method, the Atomic Absorption Spectroscopy (AAS) method, and the qRT-PCR, respectively. Chicken thigh muscle and liver tissues were used as the source of mRNA in this study. The statistical analysis methods used were the chi-square test to test Hardy-Weinberg equilibrium, and the T-test for mineral association analysis and gene expression analysis. IPB-D2 chicken on average contains 17.81, 0.22, 16.50, and 0.34 mg/kg of Fe, Se, Zn, and Mn, respectively. Two SNPs were found in 5’UTR of the MB gene, namely SNP g.17 G>T and SNP g.25 T>C. Genotype TT (g.17 G>T) and genotype CC (g.25 T>C) were significantly (P<0.05) associated with high Fe content in IPB-D2 chicken. The gene expression analysis showed that MB mRNA expression in the liver was not statistically different between high Fe (TT/CC) and low Fe (GG/TT and GT/TC) genotype combination. Meanwhile, in the thigh muscle, MB mRNA expression in TT/CC genotype combination was significantly higher than GG/TT and GT/TC genotype combination (P<0.05). These results suggest that the identified polymorphisms in the IPB-D2 MB gene could serve as references for investigating similar gene in other chicken breeds, especially regarding Fe, Se, Zn, and Mn mineral content.

Internal Quality of Layer Eggs from Traditional Market Majene

W. D. Ningtiyas, A. N. Mukhlisah, S. P. Syah, M. Irfan, S. A. Rab, A. Mutmainna — Wed, 31 Jan 2024 00:00:00 +0700

Layer egg is a source of animal protein and food products of animal which popular among the public, and become integral part of consumers’ needs. The high of competitive industry in various countries has caused the quality of the exterior and interior become one of the important assessment indicators. However, there are problems that arise in the process of marketing layer eggs is the quality of egg less attention. Egg quality needs to be maintained; thus, the content remains intact and fresh. This study aimed to determine the quality of Layer eggs from the traditional market Majene.The samples used were 90 layer eggs from traditional market Majene. Sample was was carried out using purposive sampling method with the condition that this location is a place where layer eggs are sold to final consumers such as local people can buy directly without any intermediaries. Parameters based on physical quality include egg weight, albumen index, yolk index and haugh unit value. The data obtained was analyzed qualitative descriptively based on laboratory test results. The results showed that egg weight, albumen index, yolk index and haugh value of eggs from traditional market Majene have good quality and safe for consume based on SNI 2008.

Performance of Earthworm (Lumbricus rubellus) During Different Transportation Durations

W. Marnelis, R. Afnan, V. A. Mendrofa — Wed, 31 Jan 2024 00:00:00 +0700

Earthworms (Lumbricus rubellus) are one of the soil organisms with a protein content of approximately 76%, providing significant benefits to human life. It is necessary to transport livestock/animals from their place of origin to the destination for processing or further cultivation in order to maximize the utilize of earthworms. During transportation, various challenges are encountered, leading to a decline in the performance of earthworms. The aimed of this research was to study the influence of different transportation durations on the performance of earthworms. A Completely Randomized Design (CRD) was employed with three different transportation duration treatments and three replications. Further analysis would be conducted using Duncan’s multiple-range test if the results differred significantly. Variables observed in this study included the conditions of the media pH, media temperature and humidity, environmental temperature, and humidity, weight loss and earthworm mortality. The results indicated that transportation duration significantly differs (P<0.05) in affecteding the weight loss and mortality earthworms. The 3-hour transportation treatment resulted in the highest weight loss (82.33 g, equivalent to 55.63%) and mortality (411.87 g, equivalent to 91.07%).

Reducing Livestock Greenhouse Gass Emissions by Forage Cultivation at Selobanteng, Situbondo, East Java, Indonesia

B. W. Putra, F. R. Dewi, W. D. Purbaya — Wed, 31 Jan 2024 00:00:00 +0700

Cattle is the strategic commodities in Selobanteng Village, Situbondo, East Java. Based on population monograph data, total cattle population in Selobanteng was recorded around 23.35% of total cattle population in Banyuglugur District, Situbondo Regency. The efforts to reduce greenhouse gas emissions on livestock is through the planting of forage cultivation, which has a measured area and scheduled harvest time. In this way, the age of the forage plants will continue to regenerate so that they can periodically increase carbon absorption. This problem is answered by implementation of forage cultivating. This research was observed at Selobanteng, Banyuglugur sub-district, Situbondo district, East Java. Cattle population was recorded in April-June 2022. The ability of carbon absorption from the forage cultivation area was converted from February to September 2022. Greenhouse gas emissions from cattle, biomass and carbon from forage estimation refers to the Intergovernmental Panel on Climate Change - Agriculture, Forestry and Other Land Use. Total cattle population at Selobanteng was 1,230 cows which was equivalent to 674.6 animal units. Total greenhouse gas emissions based on livestock population is 81.52 Gg CO2-e/year. The forages planted in this program were calliandra, lamtoro, gmelina, corn, banana, rice, and elephant grass. The absorption value of total carbon emissions from forage were 137.68 Gg CO2-e/year. Surplus value of carbon absorption were 56.16 Gg CO2-e/year. Planting forage provides positive benefits for the environment to increase carbon absorption.