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Journal of the Indonesian Tropical Animal Agriculture
Published by Universitas Diponegoro
ISSN : 20878273     EISSN : 24606278     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
Journal of the Indonesian Tropical Animal Agriculture (JITAA) is a double blind peer-reviewed publication devoted to disseminate all information contributing to the understanding and development of animal agriculture in the tropics by publication of original research papers
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 9 Documents
 1 
Search results for , issue "Vol 51, No 1 (2026): March" : 9 Documents clear
Behavioral indicators of cattle housed in different shade surfaces availability completed in dry tropical environment Castro-Pérez, B. I.; Portillo-Loera, J. J.; Estrada-Angulo, A.; Urías-Estrada, J. D.; Rivera-Méndez, C. R.; Mendoza-Cortez, D. A.; Plascencia, A.; Ríos-Rincon, F. G.
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 1 (2026): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.1.1-11

Abstract

The objective was to assess the behavioral indicators of cattle housed in different shade surface availabilities under dry tropical environmental conditions carried out in the summer-autumn period. During 63 days the usual social and agonist variables were recorded in 1,040 bulls housed in 16 pens (4 replicas/treatment, 65 bulls/pen). Ambient temperature (AT) and relative humidity (RH) were record-ed, and the humidity index (THI) was estimated. The shade surfaces tested were 1) conventional shade (S12%), 2) double shade (S24%), 3) shaded 100% without fans (S100), and 4) shaded 100% with fans (S100F). The average maximum value for AT, RH and THI was 38.1°C, 90.7% and 87.6 units. The shade surface influenced the proportion of animals under shade, eating, ruminating, and mounting, and decreased the proportion of animals panting. Pens S24 showed a higher proportion of animals eating and resting (quadratic component, P=0.05). Providing ventilation increased (P=0.01) 2.7 times the pro-portion of animals eating and decreased (P=0.01) 6.5 times the proportion of animals panting. At 0800h a greater proportion of animals eating and riding was observed, while from 1130h onwards the proportion of animals under shade, ruminating and resting increased. At 2:00 p.m., the highest percent-age of animals were panting. It is concluded that  a shaded surface of 12% of the pen area is enough to alleviate behavioral patterns in animals under high environmental heat load. Shade plus ventilation was shown to be a strategy in reducing panting and increasing the proportion of animals in feed bunks.
Genetic parameters for egg production traits in KU KU-Phuphan black bone chicken population Sukprasert, C.; Plaengkaew, S.; Khumpeerawat, P.; Lokaewmanee, K.; Abul Bashar, Md.; Deedar Parvez, A.K.M.; Suwanlee, S.
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 1 (2026): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.1.12-20

Abstract

Genetic parameters for egg production traits in the KU-Phuphan black bone chicken, a native Thai breed, were analyzed to estimate heritability, investigate genetic correlations, and provide essential genetic data for developing effective breeding strategies to improve egg production performance. The study focused on traits age at first egg (AFE) and cumulative egg production at 180, 270, 300, and 365 days. Data were collected from 541 hens across three generations raised in an open-house system. Ge-netic parameters, including heritability and genetic correlations, were estimated using the AIREMLF90 software with the average information restricted maximum likelihood method. The results revealed moderate heritability for AFE (0.41) and higher heritability estimates for cumulative egg production traits (0.30–0.50). Genetic correlations among egg production traits were high (0.93–0.99), indicating that these traits were influenced by similar genetic factors. However, the genetic correlations between AFE and egg production traits were low (0.18 to -0.02), suggesting that these traits were influenced by different genetic factors. In conclusion, the potential was highlighted for genetic selection to improve egg production traits in this breed. Therefore, in designing breeding programs, breeders should consid-er the high heritability of egg production traits and the low genetic correlations between AFE and egg production.
Bioprospecting snakehead fish protein concentrate (SFC) as a non non-serumserum-based albumin source for promoting capacitation in bovine sperm Setiawan, H.; Lertwichaikul, T.; Thongkham, M.; Chuammitri, P.; Sringarm, K.; Intanon, M.; Sathanawongs, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 1 (2026): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.1.21-35

Abstract

Capacitation is a prerequisite for successful fertilization with albumin as an inevitable component among the oviductal fluid's constituents. Under in vitroenvironments, albumin's function is replaced by serum-based products, which carry the issue of unsustainability, some allergies, and potential trans-mission of transmissible spongiform encephalopathies (TSEs) to the unborn fetus. To discover an alter-native, sustainable, and innoxious promoter, snakehead fish (Channa striata) albumin was examined for its potential to promote capacitation in bovine sperm. Snakehead fish protein concentrate (SFC) with respective albumin concentrations of 3, 6, and 9 mg/mL was added to the bovine capacitation me-dium. Following the swim-up technique, bovine sperm were incubated in different treatment groups for 90 minutes to stimulate the capacitation process. The results revealed that the application of 3 mg/mL albumin from SFC in Tyrode's-based capacitation medium (T-SFC3) provided sufficient evidence in promoting capacitation, as demonstrated by higher sperm exhibiting hyperactive motility, kinematic parameters, and the percentage of sperm showing B pattern as compared to Tyrode's-based capacitation medium containing 6 mg/mL BSA (T-BSA6) (p>0.05) and other levels of T-SFCs (p<0.05). In con-trast, greater concentrations of SFC application retrieved more viable sperm with intact acrosomes and less in both viable and mortal sperm with reactive acrosomes (p<0.05).
Stress indicators, immunity, and performance of quail fed on the basil leaf meal waste during the growth period Ikhwanda, K.; Ulupi, N.; Maheshwari, H.; Wahyuni, W.
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 1 (2026): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.1.36-45

Abstract

This study aimed to evaluate the effects of adding basil (Ocimum basilicum L.) leaf meal waste to feed on stress indicators, immune responses, and performance of growing quails (Coturnix coturnix japonica). Two hundred female quails 3-week-old were allocated in a completely randomized design with four treatments: 0% (P0), 1.5% (P1), 3% (P2), and 4.5% (P3), each with five replicates of 10 birds. The Observed variables included oxygen saturation, heterophil/lymphocyte ratio, hepatic superoxide dismutase (SOD) activity and malondialdehyde (MDA) level, leukocyte profiles, and clearance ability against Salmonella pullorum. Growth performance was measured through feed intake, body weight gain, and feed conversion ratio. Results showed that 3% basil leaf meal waste improved oxygen saturation and SOD activity, reduced H/L ratio and MDA level, and produced the highest bacterial killing ability. The best growth performance and most efficient feed conversion were also observed in P2. It can be concluded that 3% inclusion effectively reduces oxidative stress, enhances immunity, and improves quail performance.
Association analysis of the transforming growth factor factor-β2 gene with growth performance in Kedu chickens Akramullah, M.; Kurnianto, E.; Lestari, D. A.; Setiatin, E. T.; Palupi, D. Y.; Anjani, Y. N.; Dewi, G. P.; Setiaji, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 1 (2026): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.1.72-81

Abstract

The Transforming Growth Factor-β2 (TGF-β2) gene is one of the cytokine genes that plays an important role in regulating growth processes and disease resistance. This study aimed to analyze the association between the TGF-β2 gene and growth performance in Kedu chickens. A total of 130 Kedu chickens, consisting of 72 males and 58 females, were observed for 10 weeks. Growth parameters measured included body weight, feed intake, body weight gain, and feed conversion ratio. Identifica-tion of the single nucleotide polymorphism (SNP) in the TGF-β2 gene was performed using the PCR-RFLP method. The association analysis between the g.640 T>C SNP polymorphism of the TGF-β2 gene and growth performance was conducted using analysis of variance under a General Linear Model (GLM). The results showed that the g.640 T>C SNP of the TGF-β2 gene was polymorphic and not in Hardy–Weinberg equilibrium. The TT genotype exhibited better growth performance (body weight gain, feed intake, and feed conversion ratio) than the CC genotype, particularly at 10 weeks of age in both female and unsexed chickens.
Back-matter (Maret 2026) Wibowo, Rahmat
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 1 (2026): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.1.%p

Abstract

Back-matter (Maret 2026)
Front-matter (Maret 2026) Wibowo, Rahmat
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 1 (2026): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.1.%p

Abstract

Front-matter (Maret 2026)
Factors affecting dairy milk production and their associations under practical conditions in Northeastern Thailand Supakorn, C.; Deawtrakoon, P.; Maneerat, W.
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 1 (2026): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.1.47-59

Abstract

This study investigated factors influencing milk production in terms of quantity (raw milk yield) and quality (%fat, %protein, %lactose, %total solids, and log somatic cell counts (log SCC)) and exam-ined the associations among these traits in the morning (am) and evening (pm) milking sessions. Data were collected from the Herd Health Unit under the supervision of the Livestock Regional Office 3, Northeastern Thailand, during 2022 to 2025. Statistical analyses included analysis of variance (ANOVA) to assess fixed effects, Tukey’s Honestly Significant Difference (HSD) test for mean com-parisons, and Pearson’s correlation analysis. Fixed effects included diurnal difference, groups of tem-perature-humidity index (THI), milk collecting center types (MCC type), and their interactions. The interaction between diurnal difference and MCC type significantly affected raw milk yield, %fat, %lactose, %total solids, and log SCC (P < 0.001). Morning milk yield was highest in dairy cooperatives (10.80 tons; P < 0.05), while evening fat percentages were highest in private organizations (4.02%) and dairy cooperatives (3.97%) (P < 0.05). Lactose percentages were significantly lower in the university affiliated centers for both morning (4.55%) and evening (4.56%) sessions (P < 0.05). Morning total solids were highest in private organizations (12.8%) and dairy cooperatives (12.6%) (P < 0.05), and log SCC values were generally higher in the morning across all MCC types. The THI significantly influ-enced %lactose and %total solids (P < 0.001), with THI class A (72 to79.9) exhibiting higher lactose (4.7%) and total solids (12.6%) than other classes (P < 0.05). Correlation analyses demonstrated signif-icantly positive associations between the traits in the morning and evening sessions (r = 0.52 to 0.79), positive correlations between raw milk yield and milk composition across diurnal differences (r = -0.05 to 0.83), negative correlations between milk composition and log SCC (r = -0.38 to -0.01), and low positive correlations between raw milk yield and log SCC (r = 0.08 to 0.11). These findings demon-strate that milking time, MCC type, and heat stress all contribute to the composition and yield of milk, providing insights for the optimization of dairy management in tropical conditions.
E ffect of supplementation of Typha domingensis Pers. fruit powder and aqueous extract on productive performance and some physiological characteristics of broiler chickens Abbas, R. J.; Sukkar, S. T.
Journal of the Indonesian Tropical Animal Agriculture Vol 51, No 1 (2026): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.51.1.60-71

Abstract

This study evaluated the effects of dietary supplementation with Typha domingensis Pers. fruit flour (TDF) and its aqueous extract (TDE) on growth performance, physiological responses, and gut microbial balance in broiler chickens. A total of 216 one-day-old chicks were allocated at seven days of age into six treatment groups. Birds received either a basal diet (T1, control), TDE supplementation in drinking water at 5 or 15 mL/L (T2 and T3), TDF inclusion in feed at 5 or 15 g/kg (T4 and T5), or a combined supplementation of TDF and TDE at 7.5 units each (T6). Supplemented groups exhibited significant improvements (p ≤ 0.05) in final body weight, body weight gain, feed conversion ratio, pro-duction index, performance index, and economic efficiency compared with the control group. Addi-tionally, the relative weight of the bursa of Fabricius increased, whereas abdominal fat deposition de-creased. Blood biochemical analysis revealed significant reductions in serum cholesterol, triglycerides, low-density lipoprotein (LDL), aspartate aminotransferase (AST), and alanine aminotransferase (ALT), accompanied by increased high-density lipoprotein (HDL) levels. Antioxidant status was enhanced, as indicated by elevated superoxide dismutase (SOD) and glutathione peroxidase (GSH-PX) activities. Microbiological assessment demonstrated reduced total bacterial counts and Escherichia coli, along-side increased populations of beneficial Lactobacillus spp. In conclusion, supplementation with TDF and TDE positively influenced growth performance, metabolic health, antioxidant capacity, and intesti-nal microbial balance in broiler chickens, suggesting their potential as natural feed additives to improve poultry productivity and health.

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