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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 676 Documents
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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.
Intermittent supplementation of Spirulina platensis: effects on post-peak laying hen performance, protein digestibility, physiological responses, and egg quality Agusetyaningsih, I.; Luthfian, F.; Widiastuti, E.; Wahyuni, H. I.; Yudiarti, T.; Sari, D. A. P.; Sugiharto, S.
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.50.3.222-234

Abstract

This study evaluated the effects of different frequencies of Spirulina platensis S. platensis )supplementation on blood parameters, protein digestibility, fecal characteristics, egg quality, and production performance in laying hens. A total of 224 ISA Brown hens (55 weeks old, BW ±1907 g) were assigned to four groups: T0 (control, basal feed), T1 (0.5% S. platensis daily), T2 (0.5% every other day), and T3 (0.5% twice a week). The trial lasted for eight weeks, with weekly measurements of feed intake, egg production, and egg quality. Blood was collected at the end of the experiment to assess hematological profiles, while fecal samples were analyzed for protein digestibility and nitrogen excretion. Results showed that T3 and T4 significantly increased red blood cell count, hemoglobin concentration, hematocrit value, and leukocyte count compared to the control (P<0.05). Compared to T0, nitrogen retention and protein digestibility coefficients (%) in T1, T2, and T3 were significantly different (P<0.05). Excretory nitrogen levels in the treatment groups (T1, T2, and T3) were substantial-ly lower than those in T0 (P<0.05). Compared to T0, fecal ammonia levels in the treatment groups (T1, T2, and T3) were lower. The water content in T3 was significantly higher than that in T2 (P<0.05). Haugh Unit values in T1 and T2 were significantly higher than those in T0 and T3 (P<0.05). HDP at weeks 6 and 12 in T1, T2, and T3 were significantly higher than those in T0 (P<0.05). In conclusion, S. platensis supplementation enhanced hematological status, nutrient utilization, fecal characteristics, egg quality, and production performance. Twice-weekly supplementation (T3) was as effective as the more frequent regimens, suggesting a practical and cost cost-efficient strategy for laying hens.
Quantifying of morphological character for Kacang goat using principal component factor analysis Lestari, D. A.; Sutopo, S.; Kurnianto, E.; Dagong, M. I. A.; Bugiwati, S. R. A.; Mamat-Hamidi, K.; Yakubu, A.; Pandupuspitasari, N. S.; Agusetyaningsih, I.; Kamila, F. T.; Setiaji, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 49, No 4 (2024): December
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.49.4.316-322

Abstract

The study’s objective was to estimate the association among various linear body measurements and body weights of adult Kacang goats. The data was obtained from 209 heads of adult Kacang Goat, compressed 78 bucks and 131 ewes. The morphological evaluation was performed by measuring body weight (BW), body length (BL), chest depth (CD), chest girth (CG), chest width (CW), and withers height (WH). Factor PROCEDURE was performed to estimate the principal component. The result of factor analysis was used to determine the independent variable for linear regression analysis. BW has a favorable correlation with CG, BL, CD, CW, and WH for bucks and ewes. PC 1 accounts for 55.62% of the variation in bucks, while PC 2 accounts for an additional 18.34%. PC 1 accounts for just 0.45% of the overall variation in ewes, whereas PC 2 accounts for 0.24%. The R-squared (R2) values for bucks and ewes in the regression equation with CG as the independent variable are 0.32 and 0.41, respectively. For both bucks and ewes, the regression equation with CW as the independent variable had a higher R2 of 0.52 and 0.20, respectively. For bucks and ewes, the regression equation'sR2 values are 0.54 and 0.44, respectively, with combined CG and CW acting as independent variables. This integrated approach to analyzing body measurements in Kacang Goats provides a robust foundation for making informed decisions in goat farming.

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