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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.
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Articles 15 Documents
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Search results for , issue "Vol. 45 No. 1 (2022): Tropical Animal Science Journal" : 15 Documents clear
Clinical Signs and Blood Variables of Pregnancy Toxemia Goats during Late Gestation and Postpartum A. A. Affan; A. Salleh; M. Zamri-Saad; A. Jayanegara; H. A. Hassim
Tropical Animal Science Journal Vol. 45 No. 1 (2022): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2022.45.1.84

Abstract

Pregnancy toxemia is one of the common metabolic diseases in ruminant, which has caused a huge economic impact on the dairy industry. Thus, this study aimed to describe the clinical and blood changes in pregnant goats following induction of pregnancy toxemia. Twelve pregnant goats were divided into control (n=3) and treatment (n=9) groups. The control was fed a diet with adequate energy while the treatment group was exposed to 50% reduction in the energy intake to induce pregnancy toxemia. Blood samples were collected at weekly intervals for biochemical analyses, which included glucose, beta-hydroxybutyrate (BHBA), free fatty acid (FFA), calcium, sodium, potassium, chloride, cortisol, and insulin. On days 20 (PK20) and 40 (PK40) post-induction, 3 induced and 1 control goat was slaughtered while the remaining 3 induced goats were provided with a normal balanced diet to allow recovery (PKRD). The induction resulted in acute pregnancy toxemia after 20 days with clinical signs including weakness, loss of body condition, and recumbency. At 40 days, chronic pregnancy toxemia resulted in signs such as incoordination and abortion. There was significant (p<0.05) decrease in the glucose, insulin, calcium, and potassium levels in the induced goats while the concentrations of BHBA, FFA, and cortisol were significantly (p<0.05) higher. Furthermore, the blood profiling was significantly (p<0.05) different between the PK20, PK40, and PKRD groups and was strongly associated with the presence of clinical signs and ketone bodies in the urine. The 50% reduction in energy intake resulted in acute pregnancy toxemia after 20 days and chronic pregnancy toxemia after 40 days. In conclusion, serum biochemical profile is a potential biomarker to assess the mild and severe pregnancy toxemia in does during the late gestation and postpartum period through changes in blood profiling.
Molecular Detection and Antibiogram of ESBL-Producing and Carbapenem-Resistant Escherichia coli from Rabbit, Swine, and Poultry in Malaysia M. H. Chai; M. Z. Sukiman; N. Jasmy; N. A. Zulkifly; N. A. S. Mhd Yusof; N. M. Mohamad; S. M. Z. Ariffin; M. F. Ghazali
Tropical Animal Science Journal Vol. 45 No. 1 (2022): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2022.45.1.16

Abstract

The emergence of multidrug-resistance Enterobacteriaceae such as extended-spectrum β-lactamase (ESBL) producing Escherichia coli (E. coli) and carbapenem-resistant E. coli (CREC) has become an urgent veterinary and public health threat. These multidrug-resistant microorganisms are frequently associated with diseases that have high mortality with limited treatment options. This study aims to investigate the prevalence of ESBL producing E. coli and CREC from the rabbit, swine, and poultry and to determine the antibiogram profile of these E. coli isolates. In this study, 400 fecal swab samples were collected from rabbits, swine, and poultry from several selected animal farms in Malaysia. After incubation and isolation processes, suspected E. coli isolates were subjected to a PCR test to confirm the identity of the bacteria. The antibiogram of the E. coli isolates was determined via the Kirby Bauer disk diffusion method. A total of 212 (53%) E. coli isolates were isolated from rabbits (51 isolates), poultry (110 isolates), and swine (51 isolates). Screening of antimicrobial resistance genes revealed twelve ESBL producing E. coli (3%; 12/400). Two ESBL producing E. coli were also carrying carbapenemase gene (BlaNDM), indicating ESBL producing and carbapenem-resistant E. coli (ESBL-CREC) in poultry fecal swab samples. The bacteria isolates were found to show resistance against nine antibiotics, including ertapenem, ampicillin, and amoxicillin-clavulanate. A total of 3.3% (7/212) of the E. coli isolates were found to be multidrug-resistance. This study demonstrated the presence of ESBL-producing E. coli and ESBL-producing CREC from poultry fecal swabs in Malaysia.
Polymorphisms of Palu Sheep IGF-1 Gene and Their Relationship with Skeletal Growth A. Dg. Malewa; Awaluddin
Tropical Animal Science Journal Vol. 45 No. 1 (2022): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2022.45.1.9

Abstract

This study aims to examine the polymorphisms of the IGF-1 gene associated with body weight and size. A total of 60 sheep from different farm locations in Palu City (Villages of Taipa, Poboya, Kawatuna, and Petobo), Central Sulawesi, Indonesia, were used. The variables observed were adult body weight and measurements, such as shoulder height, body length, humerus length, radius-ulna length, metacarpus length, hip height, femur length, tibial length, and metatarsus length as phenotypic characteristics. IGF-1 gene polymorphisms were analyzed using the Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) with Bsp143ǀǀ as a restriction enzyme. These gene polymorphisms were calculated using the allele and genotype frequency approach, as well as the Polymorphic Informative Content (PIC). Genotype associations with body weight and bone size were analyzed using the General Linear Model analysis method. The PCR-RFLP analysis results showed the presence of polymorphisms with the frequency and genotypes of GG (21.7%), GC (68.3%), and CC (10%). Furthermore, the frequencies of G (55.8%) and C (44.2%) genes with a 49.32% polymorphism rate (PIC) were not in the Hardy-Weinberg equilibrium (p<0.05). In conclusion, the IGF-1 gene polymorphism was detected in Palu sheep with an insignificant effect on body weight and bone size.
Polymorphism and Association of DMA Gene with Total IgY Concentration and ND Antibody Titer in IPB-D2 Chicken Line D. Lestari; S. Murtini; N. Ulupi; C. Sumantri
Tropical Animal Science Journal Vol. 45 No. 1 (2022): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2022.45.1.1

Abstract

The DMA (DM α chain) gene, a member of non-classical MHC class II plays an important role in the process of presenting antigen peptides by producing DM protein. This study aimed to identify the polymorphism of DMA gene and their associations with disease resistance traits such as total IgY concentration and ND antibody titers in IPB-D2 chicken line. The total sample used was 101 chickens consisted of 81 IPB-D2 G0 chickens (53 female and 28 male) and 20 SENSI-1 chickens (15 female and 5 male). Blood samples were collected at 21 weeks old for genotyping, total IgY concentration analysis, and ND antibody titer analysis. SENSI-1 chickens were used as a comparison in the analysis of DMA gene polymorphism. The method for DNA polymorphism of DMA gene was direct-DNA sequencing. The total IgY concentration was analyzed using the indirect ELISA method, while the ND antibody titer used the HI test. Data were analyzed using GLM, genotypic, and haplotype mean values compared with t-test. The results showed that 4 SNPs were found, i.e., g.2328 G>A (exon 3), g.2503 A>G (intron 3), g.2612 G>A, and g.2686 G>A (exon 4). The SNPs of DMA gene were found polymorphic with three genotypes (GG, AG, and GG), and the expected SNP g.2503 A>G only had two genotypes (AA and GG). The g.2328 G>A was associated (p<0.05) with total IgY concentration. A combination of 4 SNPs formed 7 haplotypes. Haplotype 1 was associated with total IgY concentration (p<0.05), and haplotype 5 was associated with ND antibody titer (p<0.05). In conclusion, the g.2328 G>A mutation and haplotype 1 could be potentially recommended as a genetic marker for high total IgY concentration, and haplotype 5 could be potentially recommended as a genetic marker for ND antibody titer in IPB-D2 chicken line.
Improved Maturation Rate of Bovine Oocytes Following Sericin Supplementation in Collection and Maturation Media F. A. Satrio; N. W. K. Karja; M. A. Setiadi; E. M. Kaiin; M. Gunawan; E. Memili; B. Purwantara
Tropical Animal Science Journal Vol. 45 No. 1 (2022): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2022.45.1.24

Abstract

Sericin is a water-soluble protein produced by silk cocoons and known to have antioxidant activity. This study is aimed to analyze the nuclear maturation and the quality of bovine oocytes in the collection and in vitro maturation (IVM) medium supplemented with sericin. Bovine oocytes were collected using a collection medium supplemented with sericin in 0 (control) concentrations, 0.1%, 0.5%, and 1%. Selected oocytes were then matured for 24 h at 38.5 oC in 5% CO₂ and evaluated for nuclear maturation. In the subsequent experiment, oocytes were collected and matured with or without 0.1% sericin at 38.5 oC in 5% CO2. Matured oocytes were counterstained with terminal deoxynucleotidyl transferase nick-end labeling (TUNEL) and Hoechst 33342. Matured oocytes were characterized by oocytes that reached the MII stage. The results showed that supplementation of 0.1% sericin in the collection medium increased the number of oocytes reaching the metaphase II (MII) stage compared to the control group (p<0.05). In the next experiment, sericin 0.1% in the collection and in vitro maturation media increased (p<0.05) the percentage of oocytes reaching the MII stage compared to control without sericin supplementation. Furthermore, the number of fragmented DNA in the oocytes showed no differences in all groups. It can be concluded that supplementation of 0.1% sericin in the collection and in vitro maturation media improved the nuclear status without affecting DNA fragmentation.
Presence of Antibiotic-Resistant in Staphylococcal Subclinical Mastitis in Several Regencies of East Java, Indonesia D. C. Widianingrum; H. Khasanah; H. S. Addy
Tropical Animal Science Journal Vol. 45 No. 1 (2022): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2022.45.1.91

Abstract

Staphylococcal mastitis has been reported as a serious dairy disease in various regions around the world. The occurrence of resistant strains in Staphylococcus species to antibiotics has triggered alternative treatment substituting antibiotic usage on the global scene. This study aimed to investigate the presence of antibiotic-resistant genes in Staphylococcal subclinical-mastitis cases present in several regencies of East Java Province, Indonesia. A total of 592 quarter milk samples were collected from 62 farms in the region with high dairy cattle populations in Lumajang, Banyuwangi, Malang, Sidoarjo, Jember, Pasuruan, Probolinggo, and Mojokerto. Subclinical-mastitis samples were screened using the California mastitis test (CMT). Positive CMT samples were grown on the selective Staphylococcus media and tested for their biochemical properties. The polymerase chain reaction was performed to detect the presence of antibiotic-resistant genes in all isolates (Staphylococcus sp) using a specific pair-primer for mecA, blaZ, tetK, and tetM genes. The result showed that about 67% of milk samples were subclinical mastitis in several regencies of East Java. About 17.12% of subclinical mastitis was caused by Staphylococcus species (Staphylococcus aureus, Staphylococcus epidermidis, and other non-aureus Staphylococci (NAS)). The most prevalent region of Staphylococcal subclinical-mastitis was recorded in Jember. However, only NAS species obtained from Mojokerto, Malang, Probolinggo, and Banyuwangi were detected to have a blaZ gene responsible for penicillin resistance. In conclusion, the appearance of the antibiotic-resistant gene in NAS species found in several regencies of East Java can be used as important information to evaluate Staphylococcal subclinical-mastitis treatment.
The Properties of Wet Blue Added Crude Enzyme from Rhizopus oligosporus in the Acid Bating Process A. W. Nugraha; O. Suparno; N. S. Indrasti; Hoerudin
Tropical Animal Science Journal Vol. 45 No. 1 (2022): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2022.45.1.104

Abstract

Bating is one of the processes in leather production. This process is generally performed under slightly alkaline conditions, but it can also be done under acidic conditions. Rhizopus oligosporus is categorized as a microorganism that can synthesize acidic enzymes optimally in acidic conditions. This study aimed to evaluate the effect of the bating process using acid protease from R. oligosporus on the leather qualities tanned by chromium sulfate. The study used a completely randomized design where crude enzyme activity (0, 2.5, 5, 7.5, and 10 U mL-1) was a single treatment as an experimental design. Data were analyzed using ANOVA and furtherly tested using Duncan. The results show that the protease synthesized from R. oligosporus is potential to be used as a bating agent. The treatment with 2.5 U mL-1 activity was the best treatment in this study to improve leather (wet blue) properties like shrinkage temperature, ash content, and chrome oxide content. The quality of wet blue produced was better than that produced with conventional treatments. It can be concluded that the enzyme activity of 2.5 U mL-1 could be used as a bating-agent alternative in the acid bating stage.
The Role of Arbuscular Mycorrhizal Fungi Density and Diversity on the Growth and Biomass of Corn and Sorghum Forage in Trapping Culture M. Husein; N. Umami; A. Pertiwiningrum; M. M. Rahman; D. Ananta
Tropical Animal Science Journal Vol. 45 No. 1 (2022): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2022.45.1.37

Abstract

This study aimed to determine the effectiveness of arbuscular mycorrhizal fungi (AMF) in the absorption of nutrients in trapping culture and its effects on the growth and biomass production of corn (Zea mays L.) and sorghum (Sorghum sp.). Soil samples with rhizosphere were collected from three different places: Bambusa sp., Cichorium intybus L., and Pinus merkusii. The density and genus of AMF spores were evaluated. AMF effectiveness was tested using six levels of rhizosphere and two species (corn and sorghum) of plants with a 2×6 factorial experiment with eight replications of each treatment. Six types of rhizospheres were: (i) bamboo rhizosphere (Bambusa sp.) (T1), (ii) control for T1 (C1), (iii) chicory rhizosphere (C. intybus L.) (T2), (iv) control for T2 (C2), (v) Pine rhizosphere (P. merkusii) (T3), and (vi) control for T3 (C3). The control treatment was derived from sterilized planting media. The results showed that the root rhizosphere of Bambusa sp. had more density and diversity of AMF spores than the root rhizosphere of C. intybus L. and P. merkusii. At the end of the trapping culture, the host plants sorghum and corn increased the density of spores in the carrier medium or propagules of the three rhizosphere types. The difference in the amount of initial AMF had a significant (p<0.05) effect on plant height, the number of leaves, and the biomass production of trapping plants. It can be concluded that more density and colonization of arbuscular mycorrhizal spores show higher growth and biomass of trapping plants.
Detection and Dietary Exposure Assessment of Fluoroquinolones Residues in Chicken Meat from the Districts of Malang and Blitar, Indonesia R. Widiastuti; E. Martindah; Y. Anastasia
Tropical Animal Science Journal Vol. 45 No. 1 (2022): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2022.45.1.98

Abstract

The purpose of this study was to determine the presence of fluoroquinolones (enrofloxacin and ciprofloxacin) residues in fresh chicken meat and evaluate its consumption risk to the adult population in Indonesia. A total of 55 fresh chicken-meat samples were collected from Districts of Malang and Blitar, East Java Province, Indonesia, in April 2017. Detections of enrofloxacin and ciprofloxacin were carried out using high-performance liquid chromatography equipped with a PDA detector. It was found that ciprofloxacin was detected with a frequency of 67.3% at a maximum concentration of 275.00 ng/g. Enrofloxacin was detected with a frequency of 41.8% at a maximum concentration of 242.40 ng/g, or totally as a sum of enrofloxacin and ciprofloxacin residues detected in 76.4% samples at a maximum concentration of 367.50 ng/g. The estimated dietary intakes of ciprofloxacin and enrofloxacin were 44.90 ng/kg body weight/day and 7.91 ng/kg body weight/day, respectively, resulting in the hazard indexes of 0.0063 and 0.0013 for the consumptions of ciprofloxacin and enrofloxacin residues in chicken meat. Therefore, the risk associated with the consumption of ciprofloxacin and enrofloxacin residues in chicken meat by the adult population in Indonesia was considered negligible.
Performance, Microbial Populations, and Jejunal Morphology of Broilers Supplemented with Nano-Encapsulated Graviola Leaf Extract U. Maesaroh; N. D. Dono; Zuprizal
Tropical Animal Science Journal Vol. 45 No. 1 (2022): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2022.45.1.64

Abstract

This research was conducted to investigate the effects of adding nano-encapsulated graviola (Annona muricata Linn.) leaf extract (NGLE) to drinking water on microbial populations, jejunal morphology, and growth performance of broilers. A total of 300 seven-day-old Lohmann male broilers were allocated into 6 treatments with 5 replications and 10 chicks in each replicate pen. All birds were given the same basal diet but given drinking water treated with: drinking water only as a negative control (T1), drinking water + 25 mg/L Tetracycline (T2), drinking water + 15 mL/L GLE (T3), drinking water + 30 mL/L GLE (T4), drinking water + 15 mL/L NGLE (T5), or drinking water + 30 mL/L NGLE (T6). Variables observed in the current study included: body weight gain (BWG), final body weight (FBW), feed conversion ratio (FCR), feed intake (FI), carcass percentage, jejunal lactic acid bacteria (LAB), jejunal coliform bacteria, villus height and width, crypt depth, and crypt depth ratio. All variable data were statistically analyzed using a completely randomized design with one-way arrangement. Results showed that the addition of NGLE in drinking water improved (p<0.05) jejunal morphology, jejunal LAB, and growth performance of broiler chickens. The height of jejunal villus and population of jejunal LAB increased (p<0.01) when NGLE up to a dose of 15 mL/L was added into the drinking water. Supplementing 15 mL/L NGLE reduced (p<0.01) feed conversion ratio and improved (p<0.01) final body weight and carcass production compared with the other treatments. It is concluded that supplementation of 15 mL/L NGLE might be useful as an alternative for antibiotics growth promoters in poultry.

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