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Tropical Animal Science Journal

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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 429 Documents

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Genetic Variation of Eight Indonesian Swamp-Buffalo Populations Based on Cytochrome b Gene Marker M. Rusdin; D. D. Solihin; A. Gunawan; C. Talib; C. Sumantri
Tropical Animal Science Journal Vol. 43 No. 1 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Genetic variation is a major concern in animal genetic resources conservation program. This study aimed to analyze genetic variation and phylogeography of eight Indonesian swamp-buffalo populations based on cytochrome b gene marker. A total of 78 DNA fragment samples originating from eight Indonesian swamp-buffalo populations were used in this study, namely Bombana Island, Bombana mainland, Kolaka, Konawe, North Toraja, West Nusa Tenggara, Banten, and Aceh with 11, 10, 13, 14, 10, 10, 5, and 5 samples, respectively. The cytochrome b gene sequence and genetic variation parameters were analyzed in MEGA software (ver 6), and DnaSP software (ver 5.10.01). The results of this study showed that all DNA-fragment samples were successfully amplified by PCR technique with the size target (906 bp). Based on the distribution of all samples, it was found 9 polymorphic sites, and 10 haplotypes with the haplotype diversities were 0.6590. The average of genetic distances between populations ranged from 0.0000-0.002. They were grouped into two main clusters. The first cluster consisted of Aceh, North Toraja, West Nusa Tenggara, Banten, Kolaka, and Konawe populations, meanwhile, the second cluster consisted of Bombana Island, Bombana mainland, Kolaka, and Konawe populations. The results of the study were concluded that eight Indonesian local swamp-buffalo populations were grouped into two main clusters where Bombana Island and Bombana mainland populations were specific breeds because they were only found in the second cluster and also had specific nucleotides sites on the 57 nucleotides which C base changed to T. The results of this study were useful in formulating the program of conservation and utilization of Indonesian buffalo genetic resources, especially in the buffalo population with specific breeds.

The Regional Analysis of Beef Cattle Farm Development in Semarang Regency B. Santoso; B. W. H. E. Prasetiyono
Tropical Animal Science Journal Vol. 43 No. 1 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

One of the reasons for the low production and productivity of beef cattle in Indonesia is that information on the allocation of livestock areas development is not yet clear. This study aimed to determine the priority areas for developing beef cattle farm in Semarang Regency based on the concept of sustainability. Sustainability was analyzed through the determination of leading commodities (analysis of Location Quotient and Shift Share), optimization of regional potential (analysis of carrying capacity and carrying capacity index of forage, and assessment of suitability of ecological environment of beef cattle). The process of spatial analysis used GIS software. Comprehensive planning for the development of beef cattle farm was directed in three sub-districts, namely: Bringin, Bancak, and Banyubiru. The results of the analysis showed that the three sub-districts were beef cattle base areas (LQ>1), had business growth (positive SS), and had a safe status for forage availability (>2). Other results showed that the carrying capacity for beef cattle farms in Bringin sub-district was 15,829 AU, Bancak was 8,457 AU, and Banyubiru was 6,315 AU. The land area suitable for beef cattle farm from the three priority sub-districts was 5,760.141 Ha. It can be concluded that the development of beef cattle farm in Semarang Regency is focused on three priority sub-districts, namely: Bringin, Bancak, and Banyubiru. The results of this study can be an input for local governments in determining the direction and pattern of beef cattle farm development to be more sustainable.

The Economic Losses of Surra Outbreak in Sumba Timur, Nusa Tenggara Timur-Indonesia R. S. Dewi; R. Damajanti; A. H. Wardhana; S. Mulatsih; O. N. Poetri; W. Steeneveld; H. Hogeveen
Tropical Animal Science Journal Vol. 43 No. 1 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Surra or trypanosomiasis outbreak occurred at Sumba Timur in 2010. Investigating the economic impact of an outbreak of Surra, especially in areas that were free of Surra before, has never been performed in Indonesia. The overall aims of this research are to analyze the economic impact of the Surra outbreak between 2010 and 2016 in Sumba Timur using a modified formula. Total economic losses were calculated by the sum of direct cost, indirect cost, and the other expenditure cost using primary and secondary data. Primary data were collected from interviews with 30 farmers, selected by multistage random sampling and from 2 livestock services officers. Secondary data were collected from The Livestock Services of Sumba Timur and The Diseases Investigation Center in Denpasar and The Local Quarantine Agency of Kupang. The result showed that the total economic loss caused by Surra was IDR (Indonesian Rupiah) 25.7 billion. The highest cost was indirect costs (46%), followed by the direct cost (37%) and control expenditure (17%). The highest proportion of the costs occurred in the years of 2011 and 2012, when the Surra outbreak started and when there was no control program in place. From the total of government expenditure related to the Surra outbreak, 64% of the total costs were part of the epidemic response program. The costs of prevention (maximal IDR 3.24 billion in 2013) were estimated to be lower than the costs of an outbreak (maximal IDR 5.04 billion in 2012). The high cost of outbreak was caused by the absence of a control program in place and the lack of knowledge of farmers about Surra diseases at the beginning of outbreak.

Response of Growing Dairy Bulls to Dietary Tannin in Rations with Varying Energy Levels J. B. Poblete; A. A. Angeles; E. M. Agbisit, Jr.; M. V. O. Espaldon
Tropical Animal Science Journal Vol. 43 No. 1 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

This study was conducted to determine the effect of dietary tannin on growth performance, rumen fluid characteristics, and apparent total-tract digestibility in growing Holstein-Friesian x Sahiwal bulls fed low and high energy rations. Eighteen growing bulls with initial body weight (BW) of 162.8±12.7 kg at 15±0.80 months were used in an unbalanced randomized complete block design set-up in a 2x2 factorial arrangement. The experimental animals were blocked by their respective BW. Animals were fed with concentrates containing metabolizable energy (ME) at 2.47 and 2.72 Mcal/kg without or with 20g/kg tannin in dry matter basis. At the final week of the trial, rumen fluid and fecal samples were collected for the rumen fluid characteristics and apparent total-tract digestibility analyses. No differences (p>0.05) were observed between the growth performance, rumen gas production, volatile fatty acids as well as organic matter, crude protein, and energy digestibility. High energy concentrates had higher (p<0.05) dry matter and neutral detergent fiber digestibility than low energy concentrates. Low energy concentrates without tannin had cheaper (p<0.001) total feed cost but feed cost per kilogram BW gain was similar (p>0.05) across treatments. Feed savings costs of US$ 17.58 per animal were attained in feeding low energy concentrates without tannin. Therefore, feeding concentrates containing 2.47 Mcal/kg ME without additional tannin can still be fed economically to growing cattle without any adverse effect on growth, ruminal fermentation characteristics, and apparent total-tract digestibility.

Physicochemical Properties, Oxidative Stability, and Sensory Quality of Lamb Sausage Added with Green Tea Leaves (Camelia sinensis) Powder L. Purnamayanti; Jamhari Jamhari; C. Hanim; A. Irawan
Tropical Animal Science Journal Vol. 43 No. 1 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Green tea leaves as a source of natural antioxidants has a huge potential to improve sausage quality from lamb meat, in line with an increase of people concern in functional food products. This study aimed to evaluate inclusion of green tea leaves (Camelia sinensis) powder (GTP) into lamb sausage on physicochemical properties, total microbes, oxidative stability, and sensory quality. Three lambs aged one year was slaughtered as sausage meat source. Incorporation of 0.0%, 1.0%, 1.5%, and 2.0% GTP to lamb sausage during 0, 7, and 14 days of storage was conducted in a completely randomized design of ANOVA with five replications in each treatment. Few changes were observed on chemical and physical qualities by adding 1% GTP, particularly on protein and water holding capacity (WHC) (p<0.05), while moisture, fat, pH, and tenderness were not affected (p>0.05). Lipid oxidation and the number of total plate count (TPC) were reduced by 36%-40% and 31%-49%, respectively by the inclusion of 1% GTP during storage time (p<0.05). Adding GTP negatively affected the sensory quality of lamb sausage since the score of acceptability reduced in the group of sausages contained GTP although the scores for color, flavor, and odor were higher with GTP addition. The incorporation of GTP was effectively inhibiting bacterial growth and lipid oxidation in the lamb sausage. However, GTP was also ineffective at improving the sensory quality of the sausage.

Prevalence of Methicillin Resistant Staphylococcus aureus in Raw Goat Milks from Selected Farms in Terengganu, Malaysia M. H. Chai; T. A. M. Faiq; S. M. Z. Ariffin; Z. Suhaili; M. Z. Sukiman; M. F. Ghazali
Tropical Animal Science Journal Vol. 43 No. 1 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

The emergence of antimicrobial drug resistant bacteria has been a concern worldwide. One of bacteria that has been reported to develop resistance is Methicillin Resistant Staphylococcus aureus (MRSA). Recent studies showed that Livestock Associated MRSA (LA-MRSA) was found in domestic food animals and their handlers. The aim of this study was to investigate the prevalence of MRSA in goat milk of goat farms located in Terengganu. A total of 664 udder milks were taken from 332 goats at 40 selected farms within Terengganu state. Then, screening of bacteria and isolation of suspected S. aureus isolates in the milk samples was done using selective agar, Gram staining and biochemical tests. The identity of the bacteria isolated was further confirmed using PCR where specific designed primers were used to detect the presence of nuc gene of S. aureus (278bp) and mecA gene (533bp) of MRSA. Both S. aureus and MRSA isolates were also tested for their susceptibilities toward the antimicrobial drugs. Fifty milk samples were found to contain S. aureus and one of the S. aureus isolates were MRSA. The bacteria isolates were found to have higher tendency to be resistance toward Penicillin (26.0%) and Oxacillin (12.0%). This study provides useful data on the current status of MRSA prevalence in small ruminant’s milk, which can be used to prevent transmission of LA-MRSA to human and other animals.

Application of Efficient Express Sequence Tags Information for Classification and Functional Study of Simple Sequence Repeats in Cattle Testis Tissue M. Manavipour; A. Ehsani; A. A. Masoudi
Tropical Animal Science Journal Vol. 43 No. 1 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Genomic markers play an important role in tracing the flow of genetic causality of observable signals in animals and plants. In farm animals, the participation of male animals in the gene pool of subsequent generations are much higher than female animals and testes are the most important organs of the male reproductive system. This study was conducted to investigate simple sequence repeats (SSR) within the expressed sequence tags (ESTs) in order to classify the Bos taurus testis tissue’s genes for their relationship and specificity with related reproductive domains. A total of 48,549 publicly available EST sequences from cattle testis tissue downloaded from GenBank database, out of which, 10,237 sequences that their library made from testis tissue were extracted and specialized as the studied sequences using several searching tools and software. Across these selective sequences, 2,039 contigs, 5,097 singletons, and 153 SSRs were detected. EST-SSRs were subsequently evaluated using GenBank and categorized based on their functions in biological systems of dairy cattle. Investigation of these motifs showed that the identified EST-SSRs can be classified into 48 types that GT in dinucleotides and GCC in trinucleotides had the highest frequency. Annotation and gene ontology analysis revealed a relationship among 54 domains with the observed SSRs. Localization and characterization of such markers can help tracing the production of amino acids coded by identified repeats as shown in this study.

Relationship of Udder Morphometric Traits to Mothering Ability of Landrace X Large White Primiparous Sows J. M. Dominguez; J. E. S. Manzanero; C. A. Lontoc-Junsay; P. P. Sangel
Tropical Animal Science Journal Vol. 43 No. 1 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

The use of udder morphometry is often neglected during the selection of replacement gilts. This study was aimed to characterize the udder morphometry of primiparous Landrace x Large White sows across different production stages; and to show its relationship to some mothering ability traits. A total of 20 primiparous Landrace x Large White sows were bred. For each sow, the udder morphometry was characterized by measuring traits like teat tip diameter (DIA), teat length (LEN), inter-teat distance on the same row (SAMER), adjacent teat base distance on opposite row (OPPR), and teat tip to floor distance (FLO) during pre-breeding, post-breeding, and post-farrowing stages. A comparison of observed traits was also made between left and right udders as well as between anterior and posterior udders. Furthermore, the relationship between mothering ability and udder morphometry was evaluated using correlation and regression analyses. Across stages, udder traits were symmetric; however, higher values were measured for traits in posterior than in anterior udders. In the pre-breeding stage, OPPR and FLO of the anterior part had moderate negative correlations to average weaning weight (AWWt) and average daily gain (ADG). On the other hand, in the post-breeding stage, OPPR of the posterior part had a moderate positive correlation to litter size born alive (LSBA) but had a moderate negative correlation to average birth weight (ABWt). Furthermore, IgG content in the colostrum had a strong positive correlation to SAMER of the anterior part but had a strong negative correlation to FLO of the anterior part. It can be concluded that the pre-breeding combined with post-breeding udder morphometry measurements in gilts is useful as a predictor of sow mothering ability. These traits can be included in the criteria when selecting replacement gilts to enhance the productivity of sow herd.

Polymorphisms Related to Bovine Leptin Gene and Association with Productive and Reproductive Traits in Nellore Heifers J. S. Fernandes; B. A. Crispim; L. O. Seno; R. R. Aspilcueta-Borquis; A. Barufatti
Tropical Animal Science Journal Vol. 43 No. 1 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

The identification of genes and polymorphisms in female zebu related to the leptin gene that may be involved in better productive and reproductive performances is relevant to the livestock and economic sector. Thus, the objective of this study was to evaluate the SNP markers (T954M and C305T) and the BM1500 microsatellite and to analyze their associations with the traits of body weight, age at first calving (AFC), calving interval (CI), and reproductive efficiency (RE) in Nellore heifers. DNA extraction was performed, followed by the amplification of all markers. Association analyses were carried out with each marker and each traits separately. The result showed that no significant association was found between the reproductive traits and all markers and between body weight and both SNP markers. For the BM1500 microsatellite, the effect of the allele 138 (p=0.0383) on body weight was observed, with the growth curve for this allele being related to the lower asymptotic weight. Therefore, the BM1500 microsatellite marker was the only one with a significant association with a productive trait providing information about the condition of body weight in Nellore heifers.

Polymorphisms and Associations of the NRAMP-1 and iNOS Genes on Newcastle Disease and Salmonella enteritidis Resistances in SenSi-1 Agrinak Chickens M. Ardiyana; A. Gunawan; S. Murtini; T. Sartika; C. Sumantri
Tropical Animal Science Journal Vol. 43 No. 2 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

NRAMP-1 and iNOS genes were reported to be associated with a defense mechanism against bacteria and virus infections. This study aimed to identify NRAMP-1 and iNOS genes polymorphisms and their associations with the defense mechanisms against Salmonella enteritidis and Newcastle Disease (ND) in SenSi-1 Agrinak chicken. The present study used a total number of 172 SenSi-1 Agrinak chicken. Identifications of NRAMP-1 and iNOS genes polymorphisms were performed by PCR-RFLP method. NRAMP-1 and iNOS genotypes were associated with immunoglobulin Y (IgY) concentration, specific antibodies against S. enteritidis and ND using General Linear Model (GLM). Immunity characteristics were further grouped into high, medium, and low categories. NRAMP-1|SacI exon 11 and iNOS|AluI intron 24 in SenSi-1 Agrinak chickens were polymorphic. TC genotype has a higher immune response to infectious agents compared to TT and CC genotypes. The frequency of C allele was higher than the T allele in the concentration of immunoglobulin Y (IgY), antibodies titers against S enteritidis and ND. The TC genotype of NRAMP-1 gene was significantly associated with ND antibody titers, and the TT genotype of iNOS was significantly associated with S. enteritidis specific antibody. NRAMP-1 and iNOS genes can be used as potential candidate genes for immune traits in SenSi-1 Agrinak chickens.

Page 8 of 43 | Total Record : 429

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Home Page

OAI Link

Editorial Team

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Contact Name Prof. Dr. Ir. Komang G. Wiryawan

Contact Email kgwiryawan@yahoo.com

Phone +622518421692

Journal Mail Official mediapeternakan@apps.ipb.ac.id

Editorial Address Faculty of Animal Science Building, IPB University (Bogor Agricultural University) Jln Agatis, Kampus IPB Darmaga, Bogor 16680, Indonesia

Location Kota bogor, Jawa barat INDONESIA

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Contact Name
Prof. Dr. Ir. Komang G. Wiryawan

Contact Email
kgwiryawan@yahoo.com

Phone
+622518421692

Journal Mail Official
mediapeternakan@apps.ipb.ac.id

Editorial Address
Faculty of Animal Science Building, IPB University (Bogor Agricultural University) Jln Agatis, Kampus IPB Darmaga, Bogor 16680, Indonesia

Location
Kota bogor,

Jawa barat

INDONESIA