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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 11 Documents
 1   2 
Search results for , issue "Vol 50, No 3 (2025): September" : 11 Documents clear
Effect of a probiotic preparation on the composition of the intestinal microbiome of rabbits Skvortsova, E. G.; Filinskaya, O. V.; Bushkareva, A. S.; Bogdanova, A. A.; Mostofina, A. V.; Pivovarova, E. A.
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.168-180

Abstract

In this work, we studied the effect of a probiotic supplement containing bacteria of the Bacillus amyloliquefaciens strain (Vetom 2) on the intestinal microbiome composition of rabbits. Rabbits of the experimental group, in addition to compound feed together with water, received the Vetom 2.0 probi-otic feed additive in the amount of 50 mg / kg of live weight of 10 days every 30 days for four months. Genomic DNA was isolated from the intestines of rabbits using a set of ExtractDNABlood&Cells Am-plification of variable regions V3–V4 of the 16S rRNA gene using universal primers and subsequent sequencing on the IlluminaMiSeq platform. Bioinformatic analysis was carried out in the QIIME2 en-vironment. The control and experimental groups of crossbred rabbits were dominated by five phyla of intestinal bacteria: Bacillota, Pseudomonadota, Bacteroidota, Actinomycetota, and Verrucomicrobiota. The following taxa prevailed at the level of the orders: Eubacteriales, Pseudomonadales, Bacteroi-dales, Caryophanales, Enterobacteriales. At the family level, the most important taxa showing signifi-cant differences between the groups were Oscillospiraceae, Lachnospiraceae, and Campylobacterace-ae. The probiotic supplement contributed to an increase in the proportion of positive microorganisms, a decrease in the proportion of conditionally pathogenic, and an increase in the biological diversity of the intestinal microbiocenosis.
Effects of a mealworm larvae-based diet on laying performance and egg quality in laying hens Kaddour, A.; Diaw, M. T.; Saidj, D.; Yahi, K.; Moula, N.
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.235-244

Abstract

Soybean meal, the cornerstone of poultry nutrition, is increasingly scrutinized due to its heavy reliance on imported and genetically modified (GMO) crops, raising concerns about sustainability, cost, and compatibility with organic production systems. This challenge has spurred the search for al-ternative protein sources, with insect meals emerging as a promising solution. Among them, the yellow mealworm (Tenebrio molitor) offers a nutrient-dense, environmentally sustainable feed ingredient rich in proteins, lipids, and bioactive compounds. This study investigated the effects of dietary inclusion of T. molitor larvae on the performance and egg quality of laying hens. Thirty-six Isa-Brown hens (40 weeks old) were assigned to four dietary treatments: a control diet and diets supplemented with 1%, 2%, or 4% mealworm larvae (TM1, TM2, TM4). Over a four-week period, laying rate, feed conversion ratio (FCR), and egg quality traits (physical parameters, shell integrity, yolk cholesterol, and fatty acid composition) were measured. Results revealed that while laying performance remained unaffected (P = 0.48), hens in the TM4 group achieved significantly improved FCR (P = 0.03). Importantly, no adverse effects were observed on egg weight, shell quality, or nutritional composition. These findings demon-strate that moderate supplementation with T. molitor can enhance feed efficiency while maintaining egg quality, positioning insect proteins as a viable pathway toward more sustainable and resilient poul-try production.
Pre-weaning performance and growth curve in F1 Katahdin x East Friesian crossbred lambs Salinas-González, H.; Maldonado-Jáquez, J. A.; Baughman, C.; Zadok, A. O.; Torres-Hernández, G.; Montelongo-Gutiérrez, Z.
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.181-188

Abstract

The aim was to evaluate the pre-weaning performance of F1 Katahdin × East Friesian (Kt x EF) crossbred lambs, focused on growth and weaning weight. A total of 43 lambs with their dams were raised on pasture. Litter size and progeny sex were considered. Five nonlinear models were used to describe the growth curve. A significant interaction effect (P< 0.05) was found for sex and group effect for litter size on daily weight gain and weaning weight, with males and lambs from triplet and single births achieving the highest weight gains. No interaction effects or group differences were observed for birth weight, weaning age, or mortality (P> 0.05) due to progeny sex or litter size. Positive and signifi-cant correlations were observed. The Von Bertalanffy and Richards models showed the best fit for the growth curve, with R² values exceeding 98%. In conclusion, under grazing conditions, F1 Kt × EF lambs showed similar birth weights and higher weaning weights in those born as singles or triplets, suggesting a strong heterosis effect. Furthermore, the Von Bertalanffy and Richards models provided the best fit to describe the growth curve.
Front-matter (September 2025) Wibowo, Rahmat
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.%p

Abstract

Front-matter (September 2025)
Genetic diversity and phylogenetic analysis of Indonesian local and commercial rabbit breeds based on mitochondrial D-loop Lestari, D. A.; Latifa, A. P.; Sutopo, S.; Kurnianto, E.; Setiatin, E. T.; Agustine, A. D.; Nabilah, Z.; Kamila, F. T.; Prahara, P. G.; Kamalludin, M. H.; Setiaji, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.189-198

Abstract

This study aimed to evaluate the genetic diversity and phylogenetic relationships among four rab-bit breeds raised in Central Java, namely Indonesian Local rabbit (LC), Hycole (HC), Hyla (HL), and New Zealand White (NZ), using mitochondrial D-loop region sequences. A total of 40 blood samples were collected from rabbits in three regencies in Central Java. DNA was extracted from each sample, followed by gene amplification, Sanger sequencing, and sequence analysis. A 906 bp fragment of the mitochondrial D-loop region was successfully amplified from all individuals. The overall genetic di-versity was found to be low, with mean values of k = 4.615, nucleotide diversity (π) = 0.00509 ±0.00092, and haplotype diversity (Hd) = 0.385 ± 0.070. Genetic distance analysis showed a close rela-tionship among the breeds, ranging from 0.00349 to 0.00610. Two haplotypes (A and B) were identi-fied, and both were shared across all breeds, indicating limited genetic differentiation. Phylogenetic tree reconstruction further demonstrated that the four breeds clustered closely together and were most likely derived from European lineages rather than distinct indigenous origins. In conclusion, rabbits raised in Central Java represent a genetically homogenous group with low diversity, highlighting the need for broader genetic resource management and conservation strategies to ensure long-term popula-tion sustainability.
Back-matter (September 2025) Wibowo, Rahmat
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.%p

Abstract

Back-matter (September 2025)
Research note: Effects of Laminaria japonica polysaccharides on serum digestive enzyme activity in weaned piglets Luo, T. Y.; Wu, Q.; Huang, Y.; Xu, Y. Q.; Guo, M. Y.; Wang, C. W.
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.199-205

Abstract

The study investigated how varying levels of Laminaria japonica polysaccharides (LJP) in weaned piglet feed influenced the activity of digestive enzymes in the serum. 120 healthy piglets of at 21 days were selected for the experiment and randomized to four treatment groups, each comprising five replicates of six piglets. In the experiment, LJP was added at 0 (control), 100, 200 and 400 milli-grams per kilogram (mg/kg) to the basal feed of four treatment groups for 21-day. A significant de-crease in serum protease activity was observed in the 200 mg/kg LJP group when compared to the un-treated group (P < 0.05). Adding LJP to the feed had a trend of increased serum lipase activity with increasing LJP concentrations, but these increases were not statistically significant (P > 0.05). Further-more, dietary supplementation with 400 mg/kg LJP to the feed was observed to result in the highest serum amylase activity. However However, the observed changes were not considered to be of statistical signifi-cance (P > 0.05). In conclusion, LJP has a positive effect on nutrient metabolism in serum.
Modulatory effects of Macaranga tanarius leaves on rumen fermentation and fatty acid biohydrogenation in sheep: an in vitro study Jotham, S.; Muhammad, A. I.; Samsudin, A. A.
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.145-158

Abstract

This study investigated the in vitro rumen fermentation characteristics, metabolism, and apparent biohydrogenation of fatty acids in Macaranga tanarius leaves (MTL) as a potential feed for sheep, compared to Napier grass (NG). Rumen fluid from four cannulated Dorper sheep was used to assess the in vitro fermentation kinetics of 200 mg of each forage. The analysis included gas production, in vitro dry matter and organic matter digestibility (IVDMD and IVOMD), volatile fatty acid (VFA) pro-duction, metabolizable energy (ME), and fatty acid profiles, including biohydrogenation. Metaboliza-ble energy (ME), gas production, and the in vitro digestibility of dry matter (IVDMD) and organic mat-ter (IVOMD) were significantly higher (P < 0.05) for the MTL group than for the NG group. This was accompanied by higher crude protein (CP), ether extract (EE) and non-fibre carbohydrates (NFC) in the MTL group. Conversely, neutral detergent fibre (NDF) and acid detergent lignin (ADL) were nega-tively correlated with CP, IVDMD, and IVOMD (P < 0.001), while strong positive correlations were observed among CO, IVDMD, and IVOMD (P < 0.001). Overall, Macaranga tanarius leaves demon-strated superior in vitro rumen fermentation efficiency, evidenced by enhanced digestibility, energy yield, and biohydrogenation capacity relative to Napier grass. These findings suggest that M. tanarius leaves hold significant promise as a sustainable and nutritious feed resource for sheep, with implica-tions for optimizing ruminant nutrition and productivity.
Effects of Saccharomyces cerevisiae fermentation derived postbiotic supplementation in sow and piglet diet on the fecal Escherichia coli counts and antimicrobial resistance in sucking piglets under intensive production system Chao, N. V.; Hung, P. H. S.; Thao, L. D.; Dung, H. T.; Hoa, N. T.; Hien, B. T.; Mondal, A.; Nsereko, V. L.; Phung, L. D.
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.206-221

Abstract

This study evaluated the effects of SS. cerevisiae fermentation derived postbiotic (XPC) on fecal E. coli counts and antimicrobial resistant (AMR) in piglets with a high-biosecurity system. Thirty sows were divided into three groups: a standard basal diet (CON), CON with 1.0 kg/MT of Beta Beta-glucan 50% (BG), CON with 2.0 kg/MT of XPC (XPC). These diets were administared to sows from conception until weaning of the piglets, and to their piglets from 7 days old until weaning. Fecal samples were collected from piglets at 7, 14, and 21 days old for enumeration of E. coli . The disk diffusion and PCR methods were used to test for AMR and detect antimicrobial resistance genes (ARGs) in the isolates. Results showed XPC supplement significantly reduced E. coli counts (log10 CFU/g) than the CONgroup (p = 0.001). XPC decreased the frequency of E. coli isolateisolates resistance to ampicilin, erythromycin, and oxytetracyclin oxytetracycline (p < 0.05), while BG reduced resistance to cefotaxime, and gentami-cin (p < 0.05). Overall, dietary XPC supplementation in sows and piglets reduced E. coli counts in suckling piglets. Additionally, the diatary XPC and BG BG-50 supplementation was affected on the levelof AMR in E. coli .
Impact of some husbandry practices on productive and reproductive traits of desert goats (Capra hircus) in South Darfur State, Sudan Abderahman, H.; Abu Nikhaila, A. M.; Abdurahman, A.; Ethahir, H. A.
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.159-167

Abstract

This study evaluated the effects of husbandry practices on the productivity and reproduction of Sudan Desert goats. Conducted from 2014 to 2016 in South Darfur, it involved 40 female goats matched by body weight, age, physiological status, and parity. The interventions tested were shaded versus unshaded housing, restricted versus free suckling, and early versus traditional weaning. Datawere analyzed using SPSS with significance at P<0.05. Surveys revealed that goat farming provided both milk and financial security. Most owners relied on hay, with only 5% using concentrates. Under traditional management, milk yield averaged 75.88 kg over 98.5 days. Challenges included disease (notably pneumonia at 61.5%), limited capital (26.2%), and poor pasture (22.3%). Experimentally, un-shaded housing resulted in higher birth and weaning weights and better kid survival, especially with free suckling and delayed weaning. However, shaded housing shortened the kidding interval, improv-ing reproductive performance. SingleSingle-born and male kids also had higher birth weights. The study con-cludes that shaded housing enhances reproduction, while unshaded conditions with improved suckling and weaning boost kid growth and survival. Recommendations include better veterinary support, regu-lated drug use, improved pasture, and supplementary feeding to increase goat productivity in the re-gion.

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