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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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Association of prolactin gene polymorphism with milk production traits in Gaolao cattle Kale, D. S.; Singh, J.; Sathe, Y. B.; Wankhade, A.; Dudule, P. D.; Patil, D. V.; Gowane, G. R.
Journal of the Indonesian Tropical Animal Agriculture Vol 49, No 3 (2024): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.49.3.193-203

Abstract

The present study aimed to identify the DNA polymorphisms within prolactin gene regions of Gaolao cattle and to investigate their relation with milk production traits. The genomic DNA was isolated from 245 unrelated animals of Gaolao cows, and test-day milk traits data were recorded. PCRRFLP, PCR-SSCP and direct sequencing methods for mutation confirmation were used to study polymorphism within the prolactin gene. The PCR-RFLP genotyping at the exon-3 region of the prolactin gene revealed polymorphism and found an association of the PRLG1-RsaI ‘AA’ genotype with milk yield (5.05±0.14*) in Gaolao cattle. The exon-4, intron-3,4, Exon-5, 5'flanking, and exon-1 regions of prolactin revealed SSCP polymorphisms and SNPs. The results of the study indicate the existence of a substantial amount of genetic variation within the above-studied regions of the prolactin candidate gene. The identified association at PRLG1-RsaI genotype with milk yield will aid in future geneassisted selection and improvement strategies in Gaolao indigenous cattle.
The biological role of clove oil in the diet of mature male rabbits on the physiological body functions, oxidative stress and physical semen properties A. A. M. Habeeb; M. A. A. Atta; A. I. A. Elhanafy; A. K. Sharaf
Journal of the Indonesian Tropical Animal Agriculture Vol 48, No 4 (2023): December
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.48.4.282-296

Abstract

In an eight-week experiment conducted throughout the months of January and February, 2023, the goal of this study was to determine how changing the diet of mature male rabbits to include clove oil affected their body's physiological processes and the quality of their sperm. In this study, 24 mature rabbit bucks that were 8 months old and weighed an average of 2.650 g in the first production year were used. In a final randomized plan, the bucks were randomly assigned to two experimental groups, each with twelve rabbits. Bucks served as the control group in the first group and were fed a commercial pelleted food without any supplements. Each buck in the second group received one milliliter of clove along with the daily diet requirement from commercial pellets. Every two weeks, values for weight gain, feed consumption, testosterone levels, blood constituents, libido, and semen quality were assessed. The findings demonstrated that including clove oil in the diet of bucks rabbits resulted in a significant (P<0.01) improvement in each of daily feed intake, daily weight gain, testosterone hormone, and γ-globulin and a significantly (P<0.01) reduced glucose, cholesterol fraction levels in comparison to the control group. Additionally, adding clove oil increased (P<0.01) the rabbit bucks' physical semen attributes values. It was determined that including clove oil in the diet of male rabbits improved physiological body processes, produced hypercholesterolemia, and raised the quality of the rabbits' sperm without having a negative impact on liver or kidney function.
Udder morphology and milk yield of East Friesian sheep Nagy, M.; Poráčová, J.; Konečná, M.; Margetín, M.; Milerski, M.; Makovicky, P.
Journal of the Indonesian Tropical Animal Agriculture Vol 49, No 2 (2024): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.49.2.135-144

Abstract

Linear scores and measures of both udder and teat shape and size (thirteen traits) were assessed in 83 ewes of Improved Valachian breed (IV) and in crossbreds with East Friesian breed (EF 25% or EF 50%). At the same time, cistern measures and cross-section areas (fourteen traits) as well as milk yield and milkability were scanned using ultrasound technique or measured in the same individuals (130 measurements in each trait). Crossbreds with EF 50% had the largest udders in terms of depth, width, and height, as determined by either a nine-point linear score or exact measurements. Additionally, these crossbreds had teats that were more horizontally placed and the most appropriate udder attachment and shape. more horizontally and most appropriate udder attachment and shape. Ultrasound scans revealed that the areas of both the left and right udder cisterns scanned by ultrasound were the highest in EF 50% crosses. Overall cistern cross-section areas scanned from the side were 2934.6 mm2 in IV, 2932.6 mm2 in crosses of EF 25% and 3559.4 mm2 in crosses of EF 50% (P<0.05). Crossbreds of EF 50% had more appropriate machine milked milk and total milk yield (311.1 and 424.7 ml) than purebred IV (231.8 and 336.1 ml; P>0.05). On average, the proportion of machine-stripped milk was 33.2%, and non-significant influence of genotype was shown. Furthermore, all traits under study showed non significant differences between crosses of EF 25% and 50%.
Gonadotropin supplementation improved in vitro developmental capacity of Egyptian goat oocytes by modulating mitochondrial distribution and utilization AbdElkhalek, A. S.; Soliman, M. G.; El Naga, N. A. A.; El Bahrawy, K. A.; Kamel, A. M.; Shedeed, H. A.; Ghanem, N.
Journal of the Indonesian Tropical Animal Agriculture Vol 49, No 1 (2024): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.49.1.78-90

Abstract

Goat production in Mediterranean countries is economically and socially significant. The study investigated the impact of hCG supplementation on the in vitro maturation, fertilization, and mitochondrial activity of goat oocytes. In total, 2356 good cumulus-oocyte complexes (COCs) were recovered from 476 freshly collected goat ovaries. Selected oocytes were incubated in IVM medium and supplemented with hCG at varying concentrations depending on the experimental group for 24 hours at 38.5 ° C, 5% CO2 and 95% humidity. The first group (G1) was allocated as a control group, while the G2 and G3 groups were supplemented with 10 and 20 IU/mL hCG, respectively. The maturation rate was calculated using Hoechst 33342 staining in addition to cumulus expansion and the first polar body extrusion rates. The fertilization rate was evaluated. Moreover, mitochondrial activity was assessed using Mito-Tracker fluorescent staining. The results indicated a higher rate (P≤0.05) of nuclear maturation in G3 (82.5%) than in G2 (65.9%) and the control group (64.8%). Furthermore, fertilization rate was significantly improved in G3 (18.7%) compared to G2 (10.6%) and the control group (9.5%). Notably, the percentage of diffuse patterns of mitochondrial distribution increased in G3 (73.3%) compared to G2 (13.3%) and the control group (6.7%). In the same trend, the fluorescent mitochondrial intensity was higher in G3 (95%) and G2 (89.2%) compared to the control group (79.9%). In conclusion, supplementing the IVM medium with 20 IU/mL of hCG improved goat oocytes' maturation and fertilization rates by modulating cytoplasmic distribution and promoting the utilization of oocyte mitochondria.
Effect of rumen-protected fat on in vitro rumen fermentation and apparent biohydrogenation of fatty acids Behan, A. A.; Chwen, L. T.; Kaka, U.; Muhammad, A. I.; Samsudin, A. A.
Journal of the Indonesian Tropical Animal Agriculture Vol 49, No 3 (2024): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.49.3.252-263

Abstract

This study aimed to evaluate the effects of rumen-protected fat (RPF) on in vitro fermentation profiles and biohydrogenation of fatty acids. The treatment diets were basal diet (70:30 concentrate to rice straw) with no RPF (CON), basal diet plus prilled fat (PF), basal diet plus prilled fat with lecithin (PFL) and basal diet plus calcium soap of palm fatty acids (CaS). In vitro gas production, fermentation kinetics, in vitro dry matter digestibility (IVDMD), in vitro organic matter digestibility (IVOMD), metabolizable energy (ME), rumen fermentation and fatty acid profile were determined. The results show that RPF did not affect cumulative gas production and gas production kinetics. PFL significantly (p < 0.05) improved IVDMD and IVOMD, although the addition of RPF did not affect ME. The volatile fatty acid (VFA), pH, ammonia nitrogen, methane, and molar proportion of VFA were not significantly influenced by the RPF; methane was numerically reduced because of PFL treatment. The concentration of monounsaturated and polyunsaturated fatty acids increased (p < 0.05) whereas that of saturated fatty acids decreased in the control diet. The biohydrogenation of C18:2n-6 and C18 unsaturated fatty acids was enhanced (p < 0.05) by PFL. These findings suggest that PFL enhances gas production, decreases methane and increases the biohydrogenation of C18:2n6 without disrupting rumen fermentation.
Omega-3 content and sensory evaluation of scrambled eggs from two strains of laying hens fed diets enriched with alpha-linolenic acid Kartikasari, L. R.; Geier, M. S.; Hughes, R. J.; Bastian, S. E. P.; Gibson, R. A.
Journal of the Indonesian Tropical Animal Agriculture Vol 49, No 1 (2024): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.49.1.16-28

Abstract

The objective of the study was to assess the accumulation of omega-3 (n-3) fats and the sensory quality of scrambled eggs from two strains of laying hens (brown and white) given omega-3 enriched diets. The design of this research was a completely randomized block design, with a 3 × 2 factorial. A total of 24 Hy-Line brown and 24 Hy-Line white were fed three experimental diets. The alphalinolenic acid (18:3n3, ALA) levels of the dietary treatments were either low (0.3%), moderate (3.0%), or high (6.0%) with the linoleic acid (18:2n6, LA) level kept constant at approximately 4%en. The results showed that dietary supplementation of ALA enhanced n-3 fats and had no impact (P>0.05) on sensory properties including oily odour, butter aroma, sulphur aroma, taste, flavour, or off-flavour of scrambled eggs. Diets high in ALA resulted in Scrambled eggs with less intense egg aroma compared to those given diets with low or moderate ALA. Eggs of brown hens had a significantly stronger egg aroma, butter flavour, and sulphur flavour (P<0.05) compared to white eggs. In conclusion, the dietary inclusion of 3.0% ALA was discovered to be optimum with respect to the accumulation of n-3 fats and the sensory properties of the eggs.
Association of CYP2A6 gene related to the characteristic carcass, commercial cuts, quality of meat and cholesterol of lamb meat Istiqlal, R. F.; Listyarini, K.; Jakaria, J.; Budiman, C.; Gunawan, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 49, No 3 (2024): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.49.3.204-214

Abstract

As meat-producing livestock, sheep are a benchmark for communities seeking quality and healthy meat. The CYP2A6 gene has emerged as a potential tool for improving lamb meat quality. This study investigated the genetic variability of the CYP2A6 gene and its association with key determinants of lamb meat quality. The research involved 140 male sheep from five breeds: Javanese thin-tail sheep (JTTS), Garut sheep (GS), Jonggol sheep (JS), Barbados cross sheep (BCS), and Compass agrinak sheep (CAS). PCR-RFLP was employed to identify CYP2A6|BsmAI gene polymorphism and the general linear model (GLM) was used to analyze the gene's association with meat quality. The results showed a polymorphism in the CYP2A6 gene (SNP g.49170107 G>T), presenting two genotypes: GG and GT. The analysis results demonstrated that the CYP2A6 gene (P<0.05) significantly correlates with carcass characteristics (live weight, hot carcass weight, carcass percentage, cold carcass weight), commercial cuts, physical meat quality, and cholesterol content. The GT genotype exhibited superior meat quality to the GG genotype, suggesting that the CYP2A6 gene could serve as a valuable genetic marker for enhancing lamb meat quality.
The improvement of meat nutrient composition in broiler chickens fed diets containing rice bran tempeh supplemented with cellulose U. Santoso; B. Brata; K. Kususiyah; M. Dani
Journal of the Indonesian Tropical Animal Agriculture Vol 48, No 4 (2023): December
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.48.4.297-305

Abstract

This study was aimed to evaluate the effect of cellulase supplementation in diets containing rice bran tempeh on body conformation, fat deposition, nutritional composition of broiler meat and blood biochemical concentrations in broiler chickens. This research was carried out for 3 weeks from 15 days to 35 days of age. Two hundred broilers aged 15 days were divided into 4 treatment groups with 5 replications (8 broilers for each replication) for each treatment, as follows: T1 = 0% cellulase; T2 = 0.05% cellulase; T3 = 0.1% cellulase, and T4 = 0.15% cellulase. Body conformation, chemical meat composition, fat deposition, blood pH, glucose and uric acid were measured. The addition of 0.05% or 0.15% cellulase significantly reduced leggedness (P<0.05), whereas 0,1% or 0,15% cellulase addtion significantly reduced the content of meat fat and ash plus carbohydrate. In addition, the inclusion of 0.05% cellulase increased the content of meat protein (P<0.01). The inclusion of cellulase from 0.05-0.15% did not decrease fat deposition, blood concentration of uric acid, cholesterol, glucose and pH. In conclusion, the addition of 0.1% or 0.15% cellulase improved meat nutrient composition without improving body conformation.
The use of organic calcium derived from eggshell waste on physiological and intestinal conditions of broiler chickens Sugiharto, S.; Tentrawinata, Z. I.; Wahyuni, H. I.; Widiastuti, E.; Yudiarti, T.; Agusetyaningsih, I.; Raza, M. A.
Journal of the Indonesian Tropical Animal Agriculture Vol 49, No 2 (2024): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.49.2.145-156

Abstract

The study aimed to investigate the effect of using eggshell waste or eggshell extract as organic calcium source in feed on the physiological conditions and intestines of broilers. A total of 392 one-day-old chicks were randomly distributed into four groups (10 birds each group), CONT (control diet con taining 1% limestone as an inorganic calcium source), EGFL (feed containing 1% eggshell powder as an organic calcium source), EEG1 (feed containing 1% eggshell extracted with Averrhoa bilimbi L. fruit filtrate as an organic calcium source), and EEG05 (feed containing 0.5% eggshell extracted using A. bilimbi L. fruit filtrate). Body weight and feed intake were recorded weekly, whereas blood, intesti nal content, and small intestinal segments were collected at day 35. Our results showed that during days 8-35, weight gain and feed consumption were lower (P<0.05) in EEG05 than in CONT and EGFL. Thymus relative weight tended (P=0.08) to be lower in EEG05 than in CONT, and gizzard was lower (P<0.05) in EGFL than in CONT and EEG05. Serum total triglyceride was significantly higher in CONT than in other groups. Moreover, serum high-density lipoprotein was higher in EEG1 and EE G05 than in CONT (P<0.05). furthermore, serum albumin were higher (P<0.05) in EEG1 than in CONT, EGFL and EEG05. Additionally, serum uric acid was higher (P<0.05) in EEG1 than in EGFL and EEG05. Among the groups, SGPT levels were lowest (P<0.05) in EEG05 birds. While there was no effect (P>0.05) of treatments on coliform and lactic acid bacteria in the ileum and caecum, jejunal crypt depth tended (P=0.09) to be lower in EEG1 and EEG05 than in CONT and EGFL broilers. Con clusively, using 1% eggshell powder or eggshell extract in feed as the substitute for limestone had no detrimental effect on broiler chickens’ growth, physiological status and intestinal condition. Hence, eggshell powder or eggshell extracted with A. bilimbi L. fruit filtrate can be used as an organic calcium source to replace limestone.
Livestock farming sustainability and forage production in volcanic-hazard prone areas of Indonesia’s active volcano Khalil, K.; Ananta, D.; Novia, R.; Suyitman, S.; Achmadi, J.
Journal of the Indonesian Tropical Animal Agriculture Vol 49, No 1 (2024): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.49.1.91-105

Abstract

Volcanic eruptions have varied and complex impacts on small-scale livestock farming located in volcanic hazard-prone areas due to diverse stock, rearing, and feeding practices. The study was aimed to clarify the critical factors for designing forage recovery and sustainable livestock production in highrisk-prone areas of active volcanic mountains. A total of seventy-five ruminant livestock farmers located in the eruption-impacted areas of five active volcanoes were surveyed on flock size, rearing, and feeding practices. They were interviewed about their experiences of the eruption's impact on the animals, forage feed, and livestock mitigation regarding survival efforts. Forage plants and soil samples were collected to analyze dry matter and crude nutrient composition and estimate the botanical composition, biomass production, and carrying capacity. Results showed that there were five species of ruminant animals reared in small flock size (< 7 heads/farm): beef cattle, buffalo, horses, goat, and sheep. Beef cattle and goats were the most popular farm animals raised in different breeds, rearing, and feeding systems. The volcanic eruption caused animal loss and health problems due to exposure to volcanic materials, forage damages, and animal mitigation constraints, resulting in flock size decrease and economic loss. The impact of the eruption on farm animals and forage plants varied among the volcanoes due to diverse eruptive characteristics, stock breed, rearing, and feeding practices. Livestock farming recovery post-eruption depended largely on the survival flock and the regrowth of forage plants. In conclusion, sustainable beef cattle farming in volcanic hazard-prone areas might be realized by effective livestock mitigation efforts, selecting appropriate types of animals and rearing/feeding systems based on agroecological conditions, and improving forage capacity and survival rate during and posteruption.

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