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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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Determinants of Sustainable Cattle Farming to Guide Policy and Intervention in Perú Tafur-Culqui, J.; Gómez-Fernández , D.; Tineo, D.; Cruz-Luis, J.; Taboada-Mitma, V. H.; Quichua-Baldeón, R.; Arce-Inga, M.; Anchayhua, J.; Rabanal-Oyarse, R.; Goñas, M.
Tropical Animal Science Journal Vol. 48 No. 6 (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.2025.48.6.572

Abstract

The absence of detailed knowledge about the factors that determine the sustainability of cattle farming has led, in many cases, to the formulation of policies and interventions that lack contextual relevance and sensitivity to the structural heterogeneity of livestock farms. The objective of this study was to identify the important factors that determine the sustainability of cattle farming systems through a three-dimensional analytical framework based on 16 key indicators. Based on these factors, this study recommends strategic interventions to improve the environmental stewardship, resilience, productivity, and overall household welfare of cattle farming. Using probability sampling, data were collected from 120 farmers and analyzed using cluster analysis, principal component analysis (PCA), ANOVA, and Spearman correlation. The results revealed five distinct groups of cattle farmers differentiated by the age of the producer, economic dependence on cattle farming, annual yield, land use specialization, water availability, and soil erosion. Of these groups, Group 2 is particularly notable, with the highest sustainability index (64.03%), higher economic income, and greater economic dependence on cattle farming. While older producers with larger farms had higher economic and environmental scores, they also faced challenges such as a greater risk of erosion. By contrast, younger producers had less active but more innovation potential. Agricultural training was moderately related to better water management. These discoveries emphasize the need to formulate public policy and intervention strategies that focus on improving rural areas, diversification, enhancing education and improving ecological practice, while recognizing the heterogeneity of production profiles.
Morphology, Biomass, and Forage Quality of Sorghum bicolor cv. Bioguma-2 Treated with Soil Ameliorants on Post-Coal Mining Land Kuswoyo, A.; Abdullah, L.; Karti, P. D. M. H.; Human, S.; Rostini, T.; Mulyono, E. E.; Wawan, E.
Tropical Animal Science Journal Vol. 48 No. 6 (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.2025.48.6.545

Abstract

Reclamation of post-coal mining land is a valuable opportunity for transforming the land into agricultural cultivation of forage crops for livestock feed production. We conducted an experiment in the Asamasam coal mining spot, Tanah Laut Regency, South Kalimantan, to investigate the effect of some soil ameliorant materials, and Sorghum bicolor cv. Bioguma-2 (Bioguma-2 sorghum) on morphological characteristics and biomass production. Seven soil ameliorant treatments were tested: control (P0), single applications of humic acid (P1, 28 L ha⁻¹), dolomite (P2, 5.8 t ha⁻¹), and organic compost (P3, 15 t ha⁻¹), and treatment combinations of humic acid + compost (P4), dolomite + compost (P5), and humic acid + dolomite + compost (P6) with the same doses of P1, P2, and P3. The data were subjected to analysis of variance, and any significances between treatments were analyzed by Duncan’s Multiple Range Test. The results indicated that the combined ameliorant materials improved morphological characteristics and biomass production. Treatment P6 showed the highest effectiveness on soil quality, plant survival rate, most morphological traits, and all yield parameters, followed by other treatments with comparatively lower performance. P6 produced the highest crude protein content across treatments. The combination of multi-ameliorants (humic acid, dolomite, and organic compost) is more effective than single ameliorants in improving soil quality, plant survival, morphological traits, and biomass yield of Sorghum bicolor cv. Bioguma-2 on post-coal mining land. These results indicate that using combined soil ameliorants is a promising strategy to enhance forage crop production on degraded mining soils. However, natural declines in plant performance during later harvest stages suggest the need for further nutrient management to sustain productivity over time.
Growth, Physiological, and Intestinal Responses of Low-Weight Day-Old Broiler Chicks to Dietary Infertile Egg Powder Handayani, F. R.; Widiastuti, E.; Agusetyaningsih, I.; Yudiarti, T.; Sari, D. A. P.; Sugiharto
Tropical Animal Science Journal Vol. 48 No. 6 (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.2025.48.6.521

Abstract

The present study examined the consequences of supplementing the diets of low-weight day-old broiler chicks (DOC) with 4% infertile egg powder (IEP). The chicks were categorized into three groups namely; normal-weight DOC, low-weight DOC on a basal diet, and low-weight DOC on a diet that contained 4% IEP (T2). In hematological analysis, there was increase in hemoglobin levels, and mean corpuscular hemoglobin concentration (MCHC) compared to T2, but the MCV was less than T0 (p<0.05). There was improvement in the lipid metabolism, whereby triglyceride and HDL levels reduced and increased, respectively (p<0.05). T2 showed an improved antioxidant status; it had an increased activity of superoxide dismutase (SOD) and a decreased level of malondialdehyde (MDA) (p<0.05). Ileal lactic acid bacteria (LAB) and coliform counts were also substantially reduced in T2 vs. T0 (p<0.05), whereas both caecal coliform counts and LNE counts and the LAB-to-coliform ratio were significantly worse in T1 and T2 than T0 (p<0.05). Histological findings expressed the aspect of villus height-to-crypt depth (VH/CD) ratio that was greater in duodenum and ileum of T2 than T1, and deeper crypt in the jejunum in T0 than T1 (p<0.05). There was significant reduction in lesion score in duodenum and the jejunum as seen in T2 group (p<0.05). T2 also had much higher weight gain (p<0.05). per day, feed consumption and body weight at the end when compared to T1. To summarize the findings, the supplement of 4% IEP via the diet improved the physiological functioning and intestinal health status, causing the rise in body weights in low-weight broiler chicks.
Identification of Campylobacter jejuni from Chicken Carcasses and Characterization of Their Antibiotic Resistance Using Molecular Approach Susanty, S.; Dewanti-Hariyadi, R.; Kusumaningrum, H. D.
Tropical Animal Science Journal Vol. 48 No. 6 (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.2025.48.6.556

Abstract

Campylobacter species, particularly Campylobacter jejuni and Campylobacter coli, are foodborne pathogenic bacteria that cause campylobacteriosis, an acute gastroenteritis in humans. The most important transmission source to humans is contaminated animal products, such as chicken carcasses. Recently, there has been a growing concern about emerging antibiotic-resistant pathogens, including Campylobacter. Improper use of antibiotics in livestock can increase the risk of antibiotic resistance and the transmission of resistant bacterial strains to humans. This study aims to identify the species of Campylobacter spp. isolated from chicken carcasses and detected their antibiotic resistance genes using MinION sequencing in C. jejuni isolates. The disc diffusion method was also used to evaluate their resistance to macrolide, tetracycline, and fluoroquinolone antibiotics. The study results show that C. jejuni was identified in 64% of the 25 isolates, while C. coli was identified in 36% of the isolates. Molecular testing on C. jejuni isolates revealed that macrolide resistance genes were absent, specifically the 23S rRNA and the ermB genes. The tetO gene encoding for tetracycline resistance was detected in 62.5% of the isolates, and all 16 isolates (100%) were found to have the gyrA gene. In C. jejuni isolates, the cmeABC gene, which functions as a multidrug efflux pump, was also detected. The antibiotic resistance of C. jejuni isolates based on the disc diffusion method indicated high resistance to fluoroquinolone antibiotics, followed by tetracycline antibiotics.
In Vitro Anthelmintic Evaluation of Acanthophora spicifera Macroalgal Extract Against Haemonchus contortus in Sheep Sakti, A. A.; Kustantinah; Suwignyo, B.; Sofyan, A.; Panjono; Nurcahyo, R. W.; Baihaqi, Z. A.; Harahap, M. A.; Wulandari; Prasetyo
Tropical Animal Science Journal Vol. 48 No. 6 (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.2025.48.6.508

Abstract

This study investigated the chemical composition and anthelmintic activity of Acanthophora spicifera against Haemonchus contortus from sheep in vitro. Fresh macroalgae were collected from Sepanjang Beach, Gunungkidul, Indonesia. Proximate analysis, fiber fractions, mineral composition, and color profile analysis were conducted to determine chemical profile of the macroalga. It was extracted by maceration with 96% ethanol (1:5) and ultrasonication. Secondary metabolites analyzed from the extract included total flavonoids, phenols, tannins, and saponins. The anthelmintic activity was tested in vitro through H. contortus adult worm motility and egg hatch inhibition tests. Extract treatments included P0: 0.9% physiological NaCl (negative control); P1: 0.5 mg/mL macroalgal extract; P2: 1 mg/mL macroalgal extract; P3: 1.5 mg/mL macroalgal extract; and Palb: 0.5 mg/mL albendazole (positive control). Motility test results showed that the use of macroalgae at levels of 0.5, 1, and 1.5 mg/mL significantly reduced H. contortus motility (p<0.05). However, effective LD₅₀ was reached in 1 and 1.5 mg/mL within the first 10 hours, and LD₁₀₀ after 21 hours (p<0.05). None of the extract levels matched the efficacy of albendazole (p<0.05). The egg hatch inhibition test revealed that the use of macroalgae at levels of 0.5, 1, and 1.5 mg/mL significantly inhibited H. contortus egg hatching by more than 85.73% after 24 hours (p<0.01), demonstrating comparable efficacy to albendazole. Based on these findings, A. spicifera extract contains various secondary metabolites with anthelmintic activity, inhibiting both H. contortus adult worm motility and egg hatching. This suggests that A. spicifera has potential for further development as a bioanthelmintic for ruminant parasite control, although further in vivo studies are needed.
Digital Innovation in Predicting Live Body Weight of Female Ongole-Grade Cattle Using Pixel Area and Morphometric Analysis Ali, M. I.; Atmaja, B. M.; Herviyanto, D.; Prasetyo, G.; Kuswati, K.
Tropical Animal Science Journal Vol. 48 No. 6 (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.2025.48.6.500

Abstract

This study is the first to validate digital morphometric analysis combined with linear, quadratic, and allometric regression models for predicting body weight (BW) in Ongole-Grade cattle under smallholder field conditions, focusing on productive-age females as breeding stock. The objective was to develop and validate regression-based predictive models using digital image-derived traits and to compare their accuracy with conventional measurements and existing formulas. A total of 204 female Ongole-Grade cattle were measured manually and with ImageJ-based morphometrics. All measurements were standardized to a reference age of 12 months using an allometric adjustment. Traits assessed included BW, body length (BL), withers height (WH), chest girth (CG), chest depth (CD), rump height (RH), and rump width (RW). BW showed strong positive correlations with morphometric traits (r=0.80–0.91), with CG as the strongest predictor. Conventional and image-derived measurements were comparable for WH, BL, CG, CD, and RH (p>0.05), while RW differed significantly (p=0.01). Mean differences were small (≤0.8 cm), and the mean absolute percentage error (MAPE) ranged from 1.76% to 4.89%, confirming the reliability of digital imaging. The quadratic regression model (CG² + BL²), which outperformed the linear, allometric, and pixel-area–based approaches (MAPE=4.68%; R²=0.93). In contrast, the Schoorl formula substantially overestimated BW (MAPE=37.76%), while the pixel-area model showed only moderate accuracy (R²=0.63). Overall, digital morphometric analysis provides a novel, non-invasive, and cost-effective tool for cattle monitoring, with refinement of pixel area-based features recommended.
The Interrelationship of Morphological, Reproductive, and Growth Traits in Assaf Sheep in Palestine Medhat, W. A.; Ikram, B. S.; Muayad, S.; Naceur, M.
Tropical Animal Science Journal Vol. 48 No. 6 (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.2025.48.6.492

Abstract

This study was conducted to explore the associations between morphometric, reproductive, and growth traits of Palestinian Assaf sheep raised in the northern West Bank, Palestine. Data were collected from January to May 2025, with a total of 520 ewes sampled from 26 flocks. Studied traits (not limited to) were pelvic width (PW), chest depth (CD), body condition score (BCS), number of lambs born per birth (NLB), prolificacy (PRO), weight at first lambing (WAL), lamb birth weight (LBW), and weaning weight (WWT). Results from statistical analysis revealed strong correlations (r= 0.79; p<0.01) between NLB and PRO. PW had a positive correlation (r>0.3) with reproductive performance traits. Additionally, WWT was linked to both BCS and ADM (r= 0.45; p<0.01). It was concluded that introducing morphometric traits, mainly those indicated as body capacity and pelvic structure in breeding programs for Assaf sheep, can improve not only the performance of reproduction and milk production, but also on-farm production levels, adaptability, and multi-trait merit.
Animal Welfare Claims in Indonesia: Comparative Study of EU Standards and Proposed Regulatory Framework Aprillian, R.; Leucci, F.
Tropical Animal Science Journal Vol. 48 No. 6 (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.2025.48.6.564

Abstract

Animal welfare regulations in Indonesia have undergone recent developments, particularly with the proposed umbrella regulation for animal welfare under ministerial regulations. This development is intended to provide legal clarity and serve as a foundation for future welfare-related policies. However, a clear and harmonized animal welfare claims framework is still missing. In contrast, the European Union (EU), as a pioneer and frontrunner in animal welfare governance, has established a comprehensive standards and labelling framework. Taking from the 2009 European Commission’s animal welfare claims classification, this study aims to evaluate how Indonesia’s existing and proposed certifications related to animal welfare schemes, including Veterinary Control Number, organic, geographical indication, and halal, could be restructured to fit within a welfare claim framework. Through a comparative legal analysis, the study identifies regulatory gaps and opportunities to improve animal welfare policies in Indonesia. Particularly, the adoption of selected practices that have already been implemented in the EU could help Indonesia improve regulatory coherence, support food safety, and enhance its competitiveness in global trade.
Nano-Selenium as a Key Supplement in Rabbit Nutrition: Physiological and Productive Benefits-A Review Abd El-Aziz, A.; Noreldin, A.; Elbaz, A.; Mishra, B.; Buonaiuto, G.; El-Sabrout, K.
Tropical Animal Science Journal Vol. 48 No. 6 (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.2025.48.6.481

Abstract

Nutrition is a vital component of health, productivity, and performance. During the last decades, nanotechnology has been highlighted as an innovative technique in the area of animal nutrition, which is used for improving nutrient utilization/supply and maintaining the health of the animal. Among the nano-minerals, selenium nano-particles (Nano-Se) have been of exceptional interest because of higher bioavailability and biological activity than the traditional sources of Se. Nano-Se is essential for growth performance, gut health, and immunity in rabbits. The absorption of trace elements is essential for an animal’s growth and productivity. Nano-Se has exhibited visible potential in advancing physiological processes, functioning as an effective antioxidant and anti-inflammatory agent. These attributes result in better immune response, healthier guts, and proper organ function. Moreover, selenium is well known for its vital role in immune regulation, digestion, and metabolism. Several reports are available on the beneficial effects of Nano-Se supplementation on production performance, reproductive performance, carcass characteristics, and meat quality in rabbits. By modulating the expression of tight junction proteins, Nano-Se safeguards gut barrier function, improves hematobiochemical profiles, and supports tissue histology. Therefore, Nano-Se not only enhances biological performance but also the economic efficiency of rabbit production. The review provides a comprehensive and updated overview of the action mechanisms, effective dosage levels, and physiological effects of Nano-Se on rabbit growth, nutrient digestibility, reproduction, immunity, and intestinal health. It also stresses the necessity of precise selenium supplementation and indicates the range of optimum dietary selenium levels between 0.05 and 0.3 mg/kg, depending on the diet composition. Further research is needed to establish proper and safe Nano-Se supplementation guidelines for sustainable rabbit production.
Trends in Measurement Techniques in Laying Hen Farm Welfare: A Review Rodriguez-Hernandez, R.; Lozano-Villegas, K. J.; Rondón-Barragán , I. S.; Oviedo-Rondón, E. O.
Tropical Animal Science Journal Vol. 49 No. 1 (2026): 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.2026.49.1.1

Abstract

Animal welfare is a crucial issue in animal production, and researchers are seeking optimal methods to evaluate animal welfare in the field. In poultry farming, laying hen health and welfare are critical to consumer perception of product quality. The aim of the review was to examine traditional and advanced measurement trends of animal welfare in laying hens’ farms. Emerging technologies have facilitated a more profound comprehension of animal responses to diverse scenarios encountered in livestock production systems. Currently, conventional methods, such as behavioral observations, are time-consuming and highly dependent on the experienced observer’s expertise; likewise, other valuable indicators, including physiological parameters, hormonal levels, thermographic changes in the body, and hematological parameters, are widely used but are being re-evaluated. Currently, technological advances are developing comparatively non-invasive methods for multiple and long-term monitoring, such as machine vision and deep learning algorithms to track bird behavior. In addition, molecular techniques have emerged as promising tools to understand the cellular responses under internal or external stressful conditions and improve farm animal welfare. However, several challenges exist in terms of standardization and implementation of the new technologies, especially in developing countries. These challenges include limited access to advanced tools, costs, among others, and hinder implementation. In this review, we conclude that welfare research requires a holistic and interdisciplinary approach, utilizing both conventional measurements and new technologies to enable a more comprehensive assessment of animal welfare. 

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