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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. 4 (2022): Tropical Animal Science Journal" : 15 Documents clear
Safranine-O Incorporated in F127 Nanocarriers Reduces the Contamination of Staphylococcus aureus in Sheep’s Milk B. M. Rodrigues; R. C. Silva Junior; B. B. Saraiva; H. L. Perez; L. F. Maia; W. Caetano; C. V. Nakamura; B. A. Abreu Filho; M. S. S. Pozza
Tropical Animal Science Journal Vol. 45 No. 4 (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.2022.45.4.474

Abstract

Mastitis caused by Staphylococcus aureus uses antibiotics as conventional treatment, a practice that has led to bacterial resistance. Therefore, the photodynamic inactivation of microorganisms (PDIM), has the advantage of inactivating pathogens without leading to the selection of resistant microorganisms. The objective of the study was to evaluate the antimicrobial activity of the photosensitizer (PS) Safranine-O (Sf), incorporated in the nanocarrier Pluronic® F127 against strains of S. aureus isolated from sheep milk. The reduction of contamination in experimentally contaminated milk and Muller Hilton Broth (MHB), the formation of microbial biofilm, and its effect as post dipping in the decrease of total mesophilic aerobic and Staphylococcal counts in milk were evaluated. Three strains of S. aureus (SO1, SO3, SO4) and a coagulase-negative Staphylococcus (CNS) strain (SO2) were identified through the nuc and coa genes and all were sensitive to PDIM. The minimum inhibitory concentration (MIC) ranged from 1.18 to 18.75 mg/mL in the different isolates. The SO4 strain was resistant to Ampicillin and Trimetropim. When the microorganisms were cultivated in milk and MHB, there was a reduction in staph counts by 97.33% and 99.63%, respectively. In stainless steel coupons, photoinactivation reduced S. aureus adhesion by up to 45.92% (milk) and 99.5% (MHB) (p<0.05). The photoactivated Sf was similar to commercial lactic acid when applied as a dipping powder. These results showed that Sf mediated PDIM effectively inactivated pathogens that cause mastitis and reduced milk contamination.
Oocytes Population and Development Competence of Bali Cattle Embryo In Vitro with Different Ovarian Reproductive Statuses H. Hasbi; H. Sonjaya; S. Gustina
Tropical Animal Science Journal Vol. 45 No. 4 (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.2022.45.4.389

Abstract

The present study aims to determine the potential of Bali cattle ovaries as sources of oocytes for in vitro embryo production based on different ovarian reproductive statuses. The ovaries were grouped into 4 categories: ovaries with no corpus luteum and dominant follicles (CL-DF-), those with corpus luteum and no dominant follicles (CL+DF-), those without corpus luteum but with dominant follicles (CL-DF+), and those with corpus luteum and dominant follicle (CL+DF+). The oocytes were collected via the slicing technique and grouped into 4 grades (a, b, c, and d). The oocyte’s maturation was performed using tissue culture medium 199 basic media. A drop sample (10–15 oocytes/drop) covered with mineral oil was then placed in a 5% CO2 incubator at a temperature of 38.5 ℃ for 24 h. Then, the samples were fertilized in 80 μL of fertilization medium with a final spermatozoa concentration of 1.5×106 spermatozoa/mL. After 5–6 h of in vitro fertilization, the oocytes were washed four times using the Charles Rosenkrans 1aa (CR1aa) medium. Then, the samples were cultured using the CR1aa as a base medium. The results showed no significant difference (p>0.05) for the 4 groups based on the oocyte population collected from one pair ovary as well as the number of oocytes that were suitable for maturation. However, group CL-DF+ showed a significant difference (p<0.05) in the rate of nuclear maturation (80.00±12.84), fertilization rate (80.00±4.72), and the ability of embryo development (60.19±22.45) when compared to group CL-DF-, CL+DF-, and CL+DF+. This study determines that the oocyte population of Bali cattle ovary pairs and oocytes quantity that are fit for maturation is not influenced by the reproductive status of the ovaries. However, the level of nuclear maturation, fertilization, and the ability of embryo development is higher in the ovaries without corpus luteum but with dominant follicles.
Estimation of Harvest Time of Forage Sorghum (Sorghum Bicolor) CV. Samurai-2 Using Decision Tree Algorithm K. Suradiradja; I. S. Sitanggang; L. Abdullah; I. Hermadi
Tropical Animal Science Journal Vol. 45 No. 4 (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.2022.45.4.436

Abstract

Efforts to improve feed quality by adding additional nutritional supplements can increase production costs due to the increased concentrate prices. Therefore, one option is to combine the main feed with forages containing a high protein source at a low cost, such as Gramineae (e.g., sorghum). This study aims to estimate the harvest time of sorghum when the biomass content, nutrients, and digestibility for livestock are in good condition using a machine learning algorithm, namely a decision tree. The stages of this study include the collection of observation data in the field, preprocessing, modeling, evaluation, and validation. Images and field observations are the primary datasets used. These datasets become the model input for the decision tree algorithm. The results of this study are the classification model for estimating harvest time with an accuracy of 98.86% and the rule that is generated by the decision tree model, the right time to be harvested are in the condition (Day After Planting > 77.5 days AND Day After Planting ≤ 84 days AND Diameter > 26 mm) or (Day After Planting > 84 days AND Height ≤ 138.5 cm AND Leaves > 8.5 pieces) or (Day After Planting > 84 days AND Height > 138.5 cm). In conclusion, the rule generated from the decision tree algorithm can help estimate the fast harvest time of sorghum bicolor cv. Samurai 2.decision tree
Intestinal Health in Broiler Chickens Treated with Nanoencapsulation of Terminalia catappa Leaf Extract as an Antibacterial Agent N. A. Hidayati; Zuprizal; Kustantinah; R. E. Indarto; E. Suryanto; N. D. Dono
Tropical Animal Science Journal Vol. 45 No. 4 (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.2022.45.4.443

Abstract

This study aimed to observe the characteristics of nanoencapsulation of Terminalia catappa leaf extract (NETLE) in drinking water as an antibacterial agent and its effects on growth traits, intestinal microflora population, and intestinal micromorphology in broiler chickens. In this study, as many as 192 male broiler chickens were kept in a semi-closed house and distributed into six treatments with four replications, each replication consisting of eight birds, with the experimental treatments consisting of water without any additive (T0; negative control), water added with 50 ppm antibiotics tetracycline (T1; positive control), water added with 15 mL/L T. catappa leaf extract (T2), water added with 30 mL/L T. catappa leaf extract (T3), water added with 15 mL/L NETLE (T4), water added with 30 mL/L NETLE (T5). The diet consisted of yellow corn and soybean meal with 22.09% crude protein, 3155.05 kcal/kg metabolizable energy, 1.10% calcium, and 0.67% available phosphorus. The study showed that the size of NETLE was 77.2 nm with a Polydispersity Index of 0.417 and a zeta potential value of +44.8 mV. It proved that NETLE had antibacterial activity against Escherichia coli, Salmonella typhimurium, and Lactobacillus acidophilus. The administration of NETLE in drinking water did not affect growth performance, villus width, and crypt depth, yet reduced Salmonella sp. population (p<0.01) and increased lactic acid bacteria population (p<0.01), villus height (p<0.01), and the ratio of villus height to crypt depth (p<0.05). The findings showed the beneficial function of NETLE additions in drinking water to improve histomorphology and reduce pathogens in the intestinal of broiler chickens.
The Quality of Fresh and Frozen Semen and its Correlation with Molecular Weight of Seminal Plasma Protein in Bali Cattle H. Iskandar; H. Sonjaya; R. I. Arifiantini; H. Hasbi
Tropical Animal Science Journal Vol. 45 No. 4 (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.2022.45.4.405

Abstract

This study evaluated the quality of fresh and frozen semen of Bali cattle and its correlation with the molecular weight (MW) of seminal plasma protein. This study collected semen from 10 bulls aged 5–10 years using an artificial vagina and evaluated the samples macroscopically and microscopically. Two batches of frozen semen obtained in 2020 and 2021 were also analyzed. The frozen semen samples were thawed at 37 °C for 30 seconds. The sperm motility, viability, intact plasma membrane (IPM), and sperm abnormalities were investigated. The concentration of the seminal plasma proteins was determined using the Bradford method, and the proteins were characterized using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (1D-SDS-PAGE). Additionally, the gels were stained with Coomassie brilliant blue, and the MWs of the proteins were determined using MW markers. The sperm motility, viability, and abnormalities of fresh semen varied significantly among the bulls (p<0.05); however, sperm IPMs among the bulls were similar (p>0.05). No differences in sperm motility after freezing were found among the bulls. However, the sperm viability, abnormality, and IPM varied among the bulls. Meanwhile, the seminal plasma proteins contained bands with different MWs. No difference in the expression of protein bands between bulls. Linearity analysis showed that sperm motility (r= 0.281), viability (r= 0.189), abnormalities (r= 0.141), and IPM (r= 0.173) were positively correlated with the protein bands at each MW (p<0.05). The results conclude there was a positive correlation between the MW of the protein marker and the same protein expression levels in Bali bulls. Therefore, the band intensity of Bali cattle seminal plasma proteins can be used as a biomarker for selecting superior Bali bulls.
Successful Separation of X- and Y-Spermatozoa Ongole Crossbreed Using a Nano-Albumen Gradient Column T. Maulana; R. Ridwan; M. Gunawan; P. P. Agung; F. Afiati; E. M. Kaiin; S. Said
Tropical Animal Science Journal Vol. 45 No. 4 (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.2022.45.4.397

Abstract

The objective of this study was to determine the efficacy of separating X- and Y-sperm using nano-albumen (NA). The material used in this study was fresh semen of Ongole Crossbreed bulls with progressive motility of ≥ 70%. Treatments for the top and bottom fractions were T0 (BSA 5% : 10%) as a control, T1 (NA 2% : 4%), T2 (NA 4% : 6%), and T3 (NA 6% : 8%). Sexed semen was evaluated for characteristics and kinematics, and the proportions of sexed semen were validated using morphometric and polymerase chain reaction methods. The data on the characteristics and motility kinematics of X- and Y-sperm were analyzed by ANOVA using Minitab 18. The results revealed that the semen separated by the NA column generally showed the same sperm quality characteristics as the BSA column. However, the total motility of the T3y treatment in the bottom fraction was significantly lower (p<0.05) compared to the control. The kinematics of spermatozoa motility in the top fraction was not significantly different; however, the progressive motility value of T3y was significantly different (p<0.05) compared to that of T1y, and the BCF value of T2y was significantly different from that of the control in the bottom fraction. The acrosome status in the top fraction was better than in the bottom fraction, and the DNA integrity value of the top and bottom fractions showed DNA damage ranging from 2% to 5%. The present study indicated that: (1) the Nano-Albumen gradient column could be used successfully to separate X- and Y-spermatozoa, (2) characteristic values and sperm kinematics, acrosomal status, and DNA integrity were comparable to those of the BSA control, (3) combination column in treatments NA 4% (T2x) and 6% (T2y) appeared the good ability to separated X and Y-sperm.
Bleeding Time and False Aneurysm Incidence on Cattle Slaughtering Using Non-Penetrative Pre-Slaughter Stunning in Indonesia Supratikno; H. Setijanto; H. Nuraini; S. Agungpriyono
Tropical Animal Science Journal Vol. 45 No. 4 (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.2022.45.4.482

Abstract

The use of non-penetrating pre-slaughter stunning (NPPSS) in ruminants remains a contentious issue in Indonesia since it is thought to interfere with the bleeding. This paper evaluated the bleeding time (BT), incidence of the false aneurysm (FA), and factors influencing these parameters in 460 NPPSS and 50 non-NPPSS slaughters in Indonesia. In this research, bodyweight, neck skin fold, sex, incisors condition, stunner strength, door closed-final stunning interval, number of shots, stunning success rate (SSR), stunning final-slaughter interval, broken skull, shooting placement, stunner-men and slaughter-men competencies, incision direction, incision location, BT, and FA were assessed for NPPSS slaughter. The same parameters were also assessed for non-NPPSS except the stunning parameter. The results showed that the BT of the non-NPPSS slaughters (187±47.37 seconds) was faster than that of the NPPSS slaughters, with the BT for the NPPSS dependent upon the level of unconsciousness. The longest BT was found in fully unconscious cattle shot once (304.32±69.76 seconds). The risk of FA incidence in non-NPPSS cattle was higher than in the NPPSS cattle. The FA incidence was 2.64 times higher in non-NPPSS cattle than in unconscious NPPSS cattle. The BT of non-NPPSS cattle was affected by FA, whereas the NPPSS cattle were affected by SSR, number of shots, broken skull, and FA incidence. The primary influence factor of FA in non-NPPSS cattle was incision location, whereas the NPPSS cattle were DCFS, incision location, and incision direction. Based on the results of this study, it can be concluded that the use of NPPSS prolongs BT and reduces the risk of FA in the slaughter of Australian Brahman cross cattle.
Post-Thaw Characteristics of the Simmental Sperm Function in Different Ages of Bulls F. A. Satrio; N. W. K. Karja; M. A. Setiadi; E. M. Kaiin; M. Gunawan; B. Purwantara
Tropical Animal Science Journal Vol. 45 No. 4 (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.2022.45.4.381

Abstract

This study aims to determine the effect of the age difference of Simmental bulls on motion characteristics, capacitation status, and DNA fragmentation of post-thawing sperms. The frozen semen used was collected from twelve bulls, which were divided into four groups of age, which include a group of two, four, ≥ 10 years old with high semen rejection (≥ 10 HR), and ≥ 10 years old with low semen rejection (≥ 10 LR). Computer Assisted Sperm Analysis (CASA) was used to determine sperm motion characteristics, capacitation status by chlortetracycline (CTC) staining, plasma membrane integrity, and viability using eosin-nigrosine staining. In contrast, the DNA fragmentation index was determined using the Sperm-Bos-halomax kit. The results showed that the four year old group had a higher total and progressive motility percentage than the others (p<0.05). In all groups, there was no significant difference among sperm kinematics such as VAP, VSL, VCL, STR, and ALH. However, the LIN, WOB, and BCF of the ≥ 10 HR year old groups were significantly lower (p<0.05) than those of the other groups. However, un-capacitated sperm was higher (p<0.05) in the two years and four years old groups compared to the ≥ 10 years old, while the four years old group had lower capacitated and acrosome-reacted (p<0.05) than the other groups. Furthermore, the sperm membrane integrity, viability, and DNA fragmentation index of the ≥ 10 years old groups were significantly higher (p<0.05) than those of the other groups. The research concludes that aging in the Simmental bull affects motion characteristics, capacitation status, and DNA fragmentation of post-thawing sperm. However, the semen rejection rate in the older bull did not directly affect the post-thawing sperm quality.
Numbers of Follicles, Pregnancy, Expression of Reactive Oxygen Species (ROS), and Ovarian Genes in Sheep Treated with Vitamin E, L-Carnitine, and Fish Oil M. Hatami; H. M. Yarahmadi; J. Fakhraei; A. Ahmadi
Tropical Animal Science Journal Vol. 45 No. 4 (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.2022.45.4.413

Abstract

This study was performed to evaluate the effects of vitamin E, L-carnitine, and fish oil on the numbers of follicles, pregnancy, Reactive Oxygen Species (ROS) expression, and expression of several ovarian genes in sheep. For this purpose, 256 sheep were randomly divided into eight experimental groups. They were given a diet supplemented with vitamin E, L-carnitine, and fish oil alone and in combination. FBS, estradiol levels, size of the follicles, and pregnancy rate were observed. Expressions of Superoxide Dismutase 1 (SOD1), Superoxide Dismutase 2 (SOD2), Transforming Growth Factor –β (TGF-β), and Peroxisome Proliferator-Activated Gamma Receptor (PPAR-γ) genes were measured using Reverse Transcription-Polymerase Chain Reaction (RT-PCR), and ROS was measured using fluorescence microscope. At the time of mating and pregnancy, the highest number of follicles and pregnant ewes were observed in the groups supplemented with fish oil and antioxidants (p<0.01). The lowest numbers of follicles and pregnancy was observed in the group supplemented with fish oil alone (p<0.01). The highest expressions of SOD1 and TGF-β genes (p<0.01) as well as SOD2 and PPAR-γ (p<0.05) were observed in the group of concomitant use of fish oil with antioxidants. The highest amount of ROS was found in fish oil group (p<0.01), and the lowest was found in the groups supplemented with fish oil and antioxidant (p<0.01). The use of fish oil along with vitamin E and L-carnitine improved follicle function and increased pregnancy rate by reducing ROS in ewes’ ovaries as well as increasing the expression of SOD1, SOD2, TGF-βRI, and PPAR-γ genes. The use of fish oil along with antioxidants increases follicles and improves fertility in sheep.
Key Driver of Repurchase Intention in the Poultry Farming Input Market in Indonesia S. P. Syahlani; F. T. Haryadi; A. A. Setyawan; I. Mayasari; N. M. A. K. Dewi; N. H. Qui
Tropical Animal Science Journal Vol. 45 No. 4 (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.2022.45.4.490

Abstract

Regulatory changes increase the competitiveness of agribusiness input market, thus requiring input supply companies to improve service quality to maintain customer loyalty. This study aims to determine the role of customer comfort, salesperson expertise, and salesperson affection to influence customer satisfaction and delight and the effects on repurchase intention in poultry agribusiness context. Respondents were selected through judgmental sampling method who were the farmers who buy certain brand of poultry input for farm production process. Data were collected through survey using self-reported of questionnaire. The data obtained were tested for validity and reliability and examined by path analysis with Partial Least Square software. The results showed that customer comfort and customer affection influenced customer satisfaction and customer delight. However, salesperson expertise did not influence customer satisfaction and delight. Furthermore, repurchase intention in poultry farming input market was affected by customer satisfaction but not by customer delight. Therefore, it can be concluded that salesperson affection was found as the most important factor and followed by customer comfort to influence repurchase intention behavior through customer satisfaction.

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