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Tropical Animal Science Journal
Published by Institut Pertanian Bogor
ISSN : 2615787X     EISSN : 2615790X     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Energy
ropical Animal Science Journal (Trop. Anim. Sci. J.) previously Media Peternakan is a scientific journal covering broad aspects of tropical animal sciences. Started from 2018, the title is changed from Media Peternakan in order to develop and expand the distribution as well as increase the visibility of the journal. The journal is published three times a year in April, August, and December by Faculty of Animal Science, IPB University (Bogor Agricultural University), associated with Animal Scientist's Society of Indonesia. The first edition with the new title will be published in April 2018 edition (Vol 41 No 1 2018), while the previous edition (up to 2017 edition) will still use Media Peternakan as the title and could be accessed in the old website (http://medpet.journal.ipb.ac.id/). This journal has been accredited by National Journal Accreditation (ARJUNA) Managed by Ministry of Research, Technology, and Higher Education, Republic Indonesia with First Grade (Sinta 1) since year 2018 to 2022 according to the decree No. 30/E/KPT/2018.
Arjuna Subject : -
Articles 429 Documents
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Evaluating Physicochemical Properties of Whey-Chia Seed Edible Films for Biodegradable Packaging Fahrullah, F.; Noersidiq, A.; Kisworo, D.; Maruddin, F.
Tropical Animal Science Journal Vol. 47 No. 4 (2024): 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.2024.47.4.519

Abstract

The use of whey-chia seed edible films can help reduce environmental pollution while preserving the quality of food products. Films were produced using varying ratios of whey to chia seed (v/w) (whey-chia seed ratio of 1:0.5 (W1), 1:0.75 (W2), and 1:1 (W3)) through a completely randomized design with three treatments and six replications. The results showed significant differences (p<0.01) in elongation, tensile strength, moisture content, solubility, and color properties, except for crude fiber content (p>0.05). As the whey:chia seed ratio increased to 1:1, elongation increased up to 76.77%, while tensile strength decreased to 3.876 MPa, indicating an inverse relationship between these properties. The film with a whey:chia seed ratio of 1:0.5 showed 71.08% elongation but higher tensile strength (4.306 MPa) compared to the W3 treatment. The whey:chia seed ratio of 1:1 chia seed film also had the highest moisture content (49.52%), solubility (53.69%), and fiber content (15.67%). Increasing the ratio of chia seed resulted in a brighter and more transparent appearance. The microstructure of the film was continuous, compact, and homogeneous, without any irregularities such as cracks or air bubbles. The study concluded that chia seeds enhance the physicochemical and mechanical properties of whey-based edible films, with the optimal film produced at a 1:1 whey-chia seed ratio.
Chemical and Physical Quality, Fermentation Characteristics, Aerobic Stability, and Ruminal Degradability of Sorghum Silage Inoculated with Lactiplantibacillus plantarum and Limosilactobacillus fermentum Fitriani, D.; Ardiansyah, M.; Kurniawati, A.; Bachruddin, Z.; Paradhipta, D. H. V.
Tropical Animal Science Journal Vol. 47 No. 4 (2024): 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.2024.47.4.483

Abstract

This study was carried out to determine the effect of homo (Lactiplantibacillus plantarum FNCC 0020) and hetero (Limosilactobacillus fermentum BN21) fermentative lactic acid bacteria on chemical compositions, fermentation characteristics, aerobic stability, and ruminal digestibility of sorghum (Sorghum bicolor L. Moench) silage. The sorghum forage was harvested at the milk ripening phase with a dry matter content of 25.6% and fermented for 100 days with different inoculants: treatments without inoculant (CON), L. plantarum (LP), L. fermentum (LF) as well as a mixture of LP and LF at a ratio of 1:1 (MIX). The experiment was conducted using a completely randomized design with 5 replications per treatment, and all inoculants were applied at 105 cfu/g of fresh forage. The results showed that LF silage caused a 66.3% reduction in cyanide acid content, the lowest mold count, and longer aerobic stability compared to LP and CON. The lowest pH (p<0.05) and highest organic matter digestibility (p<0.05) were obtained on LP silage, while the CON silage showed no significant difference. The LP and LF silage showed the highest total volatile fatty acid (p<0.05), while there was no significant between CON and others. The LF silage had the highest acetate and the lowest propionate (p<0.05). These results showed that L. fermentum was more effective in decreasing cyanide acid content and increasing the aerobic stability of sorghum silage, while L. plantarum was able to lower pH and reduce ammonia concentration.
Health Status of Broiler Chickens Fed Diets Containing Palm Kernel Cake with Enzyme Mixture Supplementation Zubaidah, S.; Ariyadi, B.; Hanim, C.; Baskara, A. P.; Zuprizal
Tropical Animal Science Journal Vol. 47 No. 4 (2024): 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.2024.47.4.465

Abstract

Palm kernel cake (PKC) utilization as poultry feed has limitations due to its high crude fiber and non-starch polysaccharides, which make it difficult for poultry to digest. This study aimed to determine the effect of enzyme supplementation on blood profile, gastrointestinal health, and intestine histomorphology of broiler chickens fed PKC. This study used 1,080 Indian River strain roosters and two kinds of enzyme mixtures. Enzyme 1 consisted of mannanase 182 g/ton, NSPase 200 g/ton, and protease 130 g/ton, and Enzyme 2 consisted of mannanase 182 g/ton, NSPase 400 g/ton, and protease 260 g/ton. This study used six treatments and six replicates, and each replicate consisted of 30 birds. Data were analyzed using a completely randomized design with a factorial pattern of 2 × 3 and 6 replications. The treatment of factor A consisted of 3 levels of enzyme addition (No enzyme, Enzyme 1, and Enzyme 2), and factor B consisted of 2 levels of PKC (10% and 20%). The data obtained was analyzed using analysis of variance (ANOVA), and the significant difference among treatments was further analyzed using Duncan’s multiple range test. The experimental broilers fed PKC supplemented with enzyme had increased (p<0.05) villus height in the duodenum and ileum and decreased (p<0.05) relative weight percentage of the ventriculus (A2B1 and A3B1). The PKC supplementation increased (p<0.05) the relative weight percentage of proventriculus, duodenum, ileum, caecum, pH of ileum, crypta depth in the duodenum and ileum, but decreased (p<0.05) villus height in the jejunum. Enzyme supplementation increased (p<0.05) the plasma albumin, pH of duodenum, and villus width, but decreased crypta depth in the duodenum. This research concluded that Indian River strain roosters fed ration with 10% PKC supplemented with mannase, NPSase, and protease at doses of 182 g/ton, 200 g/ton, and 130 g/ton had the best health status.
Dynamics of Physiological Poikilocytosis and Anisocytosis in Cholistani Cattle Blood Rehman, Z. U.; Farooq, U.; Lashari, M. H.; Idris, M.; Asif, M.; Hameed, R.; Chaudhary, M.
Tropical Animal Science Journal Vol. 47 No. 4 (2024): 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.2024.47.4.493

Abstract

The present study is the first account of physiological poikilocytosis and anisocytosis attained through stained peripheral blood smear in terms of prevalence, types, severity, and association with age, sex, and hemoglobin (Hb) levels in Cholistani cattle blood (n=64). The correlation of these red blood cells (RBC) forms has been made with certain RBC indices attained through a multi-species hematology analyzer. The total poikilocytes (24.7±0.2%) were significantly (p≤0.05) higher than the total anisocytes (8.4±0.1%) with echinocytes being the highest seen cells (5.4±0.5%). There was no statistical difference for poikilocytes and anisocytes between males and females. The spherocytes and schistocytes were significantly (p≤0.05) higher in young cattle as compared to adult cattle. All the animals in the study groups showed slight (13%-20%) to moderate (21%-30%) total poikilocytosis. Young (n=18; 28.1%) and females (n=7; 10.9%) revealed higher marked (˃30%) total poikilocytosis. The severity of total poikilocytosis did not significantly (p≤0.05) affect any of the RBC attributes. Normal cells were significantly higher (p≤0.05) in low Hb group being 68.5±1.5% as compared to 65.09±0.8% for high Hb group. The highest values were attained for the relation between total anisocytes and Hb, and between total anisocytes and Mean Corpuscular Hemoglobin Concentration (r-square=0.159; 15.9% probability). In conclusion, the blood of healthy Cholistani cattle presents physiological peculiarities in terms of the presence of various poikilocytes and anisocytes. Furthermore, the multi-species hematology analyzer failed to predict the level of poikilocytosis and anisocytosis in the present study, whereas the stained PBS provided reliable results.
The Quality of Gaga Roosters Semen During Cold Storage Using a Diluent Supplemented with Sorbitol Khaeruddin; Ciptadi, G.; Yusuf, M.; Fattah, A. H.; Junaedi; Syamsuryadi, B.; Wahjuningsih, S.
Tropical Animal Science Journal Vol. 47 No. 4 (2024): 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.2024.47.4.436

Abstract

This study aimed to examine the effect of adding different concentrations of sorbitol to the Ringer’s lactate-egg yolk (RLEY) diluent on the quality of Gaga roosters’ semen during cold storage. A completely randomized design was used with 10 replicates and 4 levels of diluent treatment, including control, 1%, 2%, and 3% sorbitol. Semen was collected using a massage method, followed by fresh semen evaluation and dilution with a ratio of 1:5. Semen was stored at a cold temperature (5 ºC) and observed after 0, 24, 48, and 72 hours. The variables observed were semen pH, motility, kinematics, viability, plasma membrane integrity, acrosome integrity, malondialdehyde (MDA), and intracellular calcium ion (Ca2+) concentrations of sperm. All data were analyzed using analysis of variance (ANOVA). Subsequently, the evaluation of sperm mitochondrial activity and DNA damage was carried out, and the data were analyzed using the T-test. The results showed that treatment with sorbitol in the diluent had no effect on semen pH, kinematics (except straightness), acrosomal cap integrity, DNA damage, mitochondrial activity, and MDA concentration. However, sorbitol concentrations significantly affect (p<0.05) total motility, progressive motility, static motility, STR, viability, plasma membrane integrity, and intracellular Ca2+. In conclusion, the addition of 1-3% sorbitol preserves the quality of Gaga roosters’ semen during 72 hours of cold storage.
Enhancing Nutrient Intake, Digestibility, Rumen Fermentation, and Blood Metabolites in Kacang Goats Using Compost-Enriched Hydroponic Maize Fodder Sulistijo, E. D.; Benu, I.; Oematan, G.; Rosnah, U. S.; Hilakore, M. A.; Jelantik, I. G. N.
Tropical Animal Science Journal Vol. 47 No. 4 (2024): 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.2024.47.4.475

Abstract

This study aimed to enhance nutrient intake, digestibility, rumen fermentation, and blood metabolites in Kacang goats by substituting grass silage with hydroponic maize fodder enriched with fermented compost tea. The compost tea, prepared by fermenting organic compost with sugared water + 40 mL EM4 for 3 days, was used to grow maize fodder hydroponically. Four male Kacang goats (13.05 ± 1.32 kg) were assigned to four dietary treatments in a 4x4 latin square design over four 15-day periods (10 days for adaption, 5 days for data collection). The treatments were: 60% grass silage + 10% Leucaena leucocephala + 30% concentrate (control, FCG0); 30% grass silage + 30% hydroponic maize fodder + 10% L. leucocephala + 30% concentrate (FCG1); 15% grass silage + 45% hydroponic maize fodder + 10% L. leucocephala + 30% concentrate (FCG2); and 60% hydroponic maize fodder + 10% L. leucocephala + 30% concentrate (FCG3). Goats on FCG3 had lower (p<0.05) dry matter intake (152.48 g/day) compared to FCG0 (226.83 g/day). Nutrient digestibility, including organic matter and crude fiber, improved (p<0.05) in FCG3 (77.21% and 66.12%) compared to FCG0 (76.62% and 52.27%). Total volatile fatty acids (VFA) increased in FCG3 (131.54 mM) compared to FCG0 (111.73 mM). However, no significant differences were observed in ruminal ammonia (NH₃-N), ruminal pH, or blood metabolites. In conclusion, substituting grass silage with hydroponic maize fodder enriched with fermented compost tea up to 75% of the diet improved digestibility and rumen fermentation without negatively affecting intake, digestibility, or blood metabolites in Kacang goats, suggesting its potential as an alternative feed. However, complete substitution (100%) reduced intake, indicating challenges at higher substitution levels.
Enhancing Heat Stress Resilience in Broiler Chickens Through the Use of Probiotics and Postbiotics: A Review Rakngam, S.; Zhu, Y.; Okrathok, S.; Pukkung, C.; Khempaka, S.
Tropical Animal Science Journal Vol. 47 No. 4 (2024): 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.2024.47.4.538

Abstract

The broiler industry is currently the most important and rapidly growing livestock sector worldwide. However, it faces critical environmental issues, especially heat stress (HS). HS adversely affects the bird’s physiological and behavioural status, welfare, and growth performance, leading to numerous economic losses. Nevertheless, a limited understanding remains of the deep physiological and cellular responses related to energy formation and gut health. Therefore, the purpose of this review is to gain a better understanding of how HS affects broilers and to explore the potential of probiotics and postbiotics in mitigating HS effects, with a primary focus on antioxidant capacity, heat shock proteins (HSPs), gut health, and growth performance in HS-exposed broilers. HS induces various physiological and cellular responses related to energy metabolism, antioxidant defense, gut health, and inflammation. Probiotics and postbiotics, whether in single or mixed strains (such as Saccharomyces cerevisiae, Bacillus subtilis, Lactobacillus acidophilus, L. plantarum, and Enterococcus faecalis, etc.), have been shown to increase antioxidant enzyme activity, down-regulate HSP70 mRNA expression, and improve gut health through the enhanced gut morphology, strengthened barrier integrity, reduced inflammation, and restored gut microbial balance. Consequently, these benefits can lead to the enhanced growth performance in heat-stressed broilers. This indicates that probiotics and postbiotics hold promise as alternative feed additives to antibiotics for alleviating the negative effects of HS in the future. However, probiotics, being living microorganisms, are more sensitive and require conditions for viability and colonization in the gastrointestinal tract. Therefore, for practical application, postbiotics may offer greater effectiveness due to their safety, longer shelf life, and ease of storage, handling, and transportation.
The Association of IGFBP7 Gene Polymorphism on Lamb Meat Quality in Javanese Thin-Tailed Sheep Komarudin; Listyarini, K.; Budiman, C.; Sumantri, C.; Gunawan, A.
Tropical Animal Science Journal Vol. 47 No. 4 (2024): 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.2024.47.4.448

Abstract

The insulin-like growth factor binding-protein 7 (IGFBP7) gene is one of the potential genes related to meat quality. The objective of the current study was to evaluate polymorphism of the IGFBP7 gene (g.72351183A>C) and its association with meat quality traits in the Javanese thin-tailed (JTT) sheep. A comprehensive analysis was conducted on 88 JTT male sheep to examine their fatty acid composition, carcass characteristics, carcass retail cuts, and the physical properties of lamb meat. The polymorphism was detected using the PCR-RFLP technique. The association between the IGFBP7 gene polymorphism and the observed variables of meat quality was evaluated using one-way analysis of variance (ANOVA). The study results indicated that the IGFBP7 gene was polymorphic in JTT sheep population, with the allele distribution conforming to Hardy-Weinberg equilibrium. The AA genotype was found to be predominant. The IGFBP7 gene variants were associated (p<0.05) with erucic acid, linoleic acid, eicosapentaenoic acid, and total polyunsaturated fatty acid (PUFA). Sheep possesing the CC genotype exhibited the highest levels of linoleic acid, eicosapentaenoic acid, and total PUFA in comparison to those with AA and AC genotypes. However, the IGFBP7 gene polymorphism was not associated with carcass characteristics, carcass retail cuts, and physical properties of meat. These findings suggest that the IGFBP7 gene is a promising candidate marker for improving fatty acid composition in JTT sheep.
Isolation and Characterization of the Microbiological and Physicochemical Qualities, the Protein and Amino Acid Profiles of Fermented Chicken and Duck Egg Ovalbumin Nurliyani; Abidin, M. Z.; Kandarina, I.
Tropical Animal Science Journal Vol. 48 No. 1 (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.2025.48.1.45

Abstract

The objective of this study was to isolate and characterize the microbiological and physicochemical qualities, and the protein and amino acid profiles of fermented chicken and duck egg ovalbumin (OVA). The OVA was fermented using lactic acid bacteria (LAB) Lactobacillus paracasei M104 taken from goat milk and yeast Kluyveromyces marxianus KFA9 obtained from kefir. The OVA and fermented OVA were characterized by analyzing its electrophoresis and spectral profile on FTIR, amino acid profile, and microbiological and physicochemical properties. The findings indicated that the chicken and duck OVA showed a molecular weight between 45-55 kDa. The amount of LAB in OVA before and after fermentation was not significantly different. However, the amount of yeast decreased after fermentation. The concentrations of soluble protein, total free amino acids, and alcohol in the fermented chicken OVA were higher than those in fermented duck OVA. The OVA of chicken and duck eggs showed a comparable pattern in specific bands within the FTIR spectrum. However, there were several different bands in the FTIR spectra between OVA and fermented OVA. Specific carbohydrate-containing bands were notably absent in the fermented OVA. After fermentation, the chicken OVA indicated an increase in all types of amino acid concentrations. Conversely, the amino acid concentrations were constant before and after fermentation in duck OVA. The changes in the secondary structure of protein may affect its functional characteristics, which needs further studies. It is expected that fermented OVA produced using local starters can be used as an ingredient in functional foods.
Optimizing Methane Production from Anaerobic Digestion of Dairy Cow Manure: The Potential Use of Carica (Carica pubescens) Seeds as a Co-Substrate Purwasih, R.; Saindah, M.; Triyuwanti, H.; Yusuf, F. S.; Purnomoadi, A.; Purbowati, E.; Sutaryo, S.
Tropical Animal Science Journal Vol. 48 No. 1 (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.2025.48.1.37

Abstract

A method to increase methane production in dairy cow manure (DCM) is to co-digest DCM with nutritious biomass. This study aimed to determine the methane yield during the anaerobic co-digestion of DCM and carica seeds meal (CSM). Four continuous stirred tank reactors were operated with treatments P0 (100% DCM), P1 (98% DCM and 2% CSM), P2 (96% DCM and 4% CSM), and P3 (94% DCM and 6% CSM). The results demonstrated that the presence of CSM as a co-substrate of DCM significantly increased (p<0.05) methane production. The average methane production resulting from P0, P1, P2, and P3 in units of mL/g substrate and mL/g volatile solid (VS)added were 10.05, 20.54, 32.26, and 19.29 mL/g substrate and 171.49, 278.96, 357.92 and 179.30 mL/g VSadded, respectively. Thus, the highest methane production was obtained at P2. Treatment P3 contained a substrate containing excessively high protein and organic content, negatively affecting anaerobic microorganisms’ activity. The presence of CSM as a co-substrate enhanced methane production by 91.94%–221.06% compared with the control. The presence of CSM as a co-substrate significantly increased (p<0.05) volatile fatty acid and total ammonia nitrogen (TAN) concentrations and the pH of digested slurries but did not affect VS reduction. The co-digestion of DCM and CSM must consider the proportion of organic material in the mixed substrate. In this study, the mixed substrate with a VS proportion of 51.68% was the best-mixed substrate.

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