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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.
Arjuna Subject : -
Articles 429 Documents
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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.
Differential Expressions of Protamine 1 (PRM1) and Protamine 2 (PRM2) Genes as Markers of Semen Quality in Pasundan Bulls Santoso; A. Gunawan; C. Sumantri; R. I. Arifiantini; Herdis
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.2022.45.4.423

Abstract

Several gene expressions are related to the success of spermatogenesis. Protamine plays an important role in sperm DNA packaging, spermatogenesis, and sperm quality. This study aimed to isolate RNA from spermatozoa and determine the gene expression profiles of protamine 1 (PRM1) and protamine 2 (PRM2). Six Pasundan bulls aged 5-8 years with a body weight of 380 kg-430 kg were used for this study. The Pasundan bulls were classified into group A (70%-79%) and group B (80%-89%) based on their sperm motility in fresh semen. In this study, correlation analysis was performed between fresh semen characteristics (volume, motility, concentration, abnormality, viability, intact plasma membrane (IPM), DNA integrity) and frozen semen characteristics after thawing (motility, viability, IPM, and DNA integrity). Total RNA was isolated from the frozen sperm pellet, and cDNA was synthesized. Specific PCR primers were used for the transcription of PRM1 and PRM2 from sperm. PRM1 and PRM2 gene expressions were evaluated by qRT-PCR, and ACTB was used as a control. The results showed that progressive sperm motility in the fresh sperm positively correlated with sperm viability and IPM. PRM1 and PRM2 were higher (p<0.05) in group B than in group A. This condition indicates the existence and influence of protamine on the parameters of progressive sperm motility. The expression of PRM1 and PRM2 genes could use as markers of semen quality in Pasundan bulls.
Reproductive Performance of Garut Ewes Fed Sorghum-Indigofera after Stimulation with Pregnant Mare Serum Gonadotropin R. Somanjaya; A. M. Fuah; S. Rahayu; L. Abdullah; M. A. Setiadi
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.2022.45.4.451

Abstract

This study aimed to evaluate the effect of mixed feed sorghum-Indigofera on Garut ewes reproductive performance stimulated with Pregnant Mare Serum Gonadotropin (PMSG) hormone. Twenty-eight multiparous Garut ewes were grouped based on feed type (local forage (LF) vs. mixed feed sorghum-Indigofera (SI)), for a 30-day acclimatization period with a completely randomized design. Following acclimatization, all animals were synchronized with PGF2α (i.m.) twice, 11 days apart. Half the population of each group was stimulated with 500 IU PMSG after the second injection. Estrous characteristics were observed for seven days, followed by natural mating. Pregnancy status and the number of fetuses were detected 30 days after mating using ultrasound (USG), and reproductive efficiency was evaluated after parturition. Data during acclimatization were analyzed using a two-sample t-test, while the reproductive performances used a General Linear Model (GLM). Estrous characteristics showed no interaction (p>0.05) between feed types and PMSG stimulation. The onset of estrous in the SI treatment occurred 9.33 hours faster (p<0.05) than in the LF treatment. Meanwhile, the duration of estrous in the group stimulated with PMSG was 18.67 hours longer (p<0.05) than without PMSG. The vulva temperature at standing heat was 38.16±0.69 °C (p>0.05), with the pregnancy rate ranging 42.85%-100%. Interestingly, the SI group treated with or without PMSG had a larger litter size (1.43-4.50) compared to the LF group (1.25–1.33). It is concluded that feeding with SI had improved reproductive success, with the highest number of ewes giving birth. Additionally, the ewes fed SI with PMSG had the largest litter size.
The Association of Single Nucleotide Polymorphism -69T>G HSPA1A Gene with Bali Cattle Heat Tolerance I. Suhendro; J. Jakaria; R. Priyanto; W. Manalu; R. R. Noor
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.2022.45.4.429

Abstract

Heat shock protein plays an essential role in thermoregulatory during heat stress responses. This study aims to determine the association of single nucleotide polymorphism (SNP) -69T>G in the promoter region of the heat shock protein 70 member 1A (HSPA1A) gene on heat tolerance in Bali cattle. One hundred and sixteen heads of Bali cattle were collected from different locations such as Pangyangan, Bali Island; Serading, Sumbawa Island; and Sembalun, Lombok Island. The SNP was analyzed by genotyping using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP), which used BstUI enzyme restriction. Physiological responses including respiration rate (Rr), rectal temperature (Tr), heart rate (Hr), heat tolerance coefficient (HTC), and blood glucose level (Glu) were measured. Association analysis was conducted using a general linear model by setting genotype, altitude, and sex as factors. The SNP -69T>G variant of HSPA1A gene found in this study were wild type (TT) with 144 bp & 498 bp; GG with 144, 236, & 262 bp; and TG with 144, 236, 262, & 498 bp. Bali cattle with the GG genotype had lower (p<0.001) Rr and HTC compared to the other genotypes. It could be concluded that physiological performances were lower at high altitudes, and the SNP -69T>G HSPA1A was associated with the physiological performances of Bali cattle. SNP -69T>G of HSPA1A could be utilized for candidate marker-assisted selection of Bali cattle to improve the performance of heat tolerance.
Physiological and Productivity Performances of Japanese Quails Supplemented with Cassava Leaf Paste L. Jumadin; H. Maheshwari; N. Ulupi; A. S. Satyaningtijas
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.2022.45.4.460

Abstract

This study aimed to evaluate and analyze the physiological performances of quails raised under this temperature range and then given cassava leaf paste to reduce the heat stress effects. The variables measured were blood chemical, stress indicators, body resistance, productivity, and quality of quail eggs. This experiment used 160 quails in a completely randomized design with 4 doses of cassava leaf paste as treatments with 4 replications, namely P0 (0 mg/g), P1 (5.29 mg/g), P2 (10.58 mg/g), and P3 (15.87 mg/g). The administration of cassava leaf paste for 30 days was carried out through 100 mL of drinking water for each dose. The results showed that administering various doses of cassava leaf paste to quails increased blood glucose and lower blood cholesterol concentrations. Administration of cassava leaf pastes in P3 treatment increased the oxygen saturation value of quail by 6.14% compared to the control treatment. Malondialdehyde (MDA) serum concentration as an indicator of oxidative stress significantly increased at a higher dose (P3) of cassava leaf paste administration. Meanwhile, the superoxide dismutase (SOD) serum concentration remains the same. Administration of cassava leaf pastes in P3 treatment decreased liver MDA by 66.66%, and P2 treatment increased liver SOD by 3.85% compared to the control treatment. The clearance test showed the presence of cassava leaf paste increased by 1.2% the death of Salmonella pullorum bacteria. The provision of cassava leaf paste can increase egg productivity and quality. The total cholesterol of egg yolks of quails receiving cassava leaf paste was lower than the control. In conclusion, applying cassava leaf paste can support the physiological performance such as blood chemistry (glucose levels, cholesterol, and oxygen saturation), stress indicators (serum and liver MDA and SOD concentrations), body resistance (total leukocyte count and the death rate of Salmonella pullorum bacteria), of quails, thereby increasing the productivity and quality of quail eggs.
Diminishing Water-Intake may have Pragmatic Aspects in Lambs Fed on Pelleted Complete Diet and Reared under Thermo-Neutral Condition M. O. Sanni; E. M. Samara; K. A. Abdoun; M. A. Al-Badwi; M. A. Bahadi; A. A. Al-Haidary
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.2022.45.4.467

Abstract

Some basic questions regarding sheep’s ability to tolerate different levels of water intake (WI), especially when fed on a pelleted-complete diet (PCD) and reared under comfortable climatic conditions, are still open. To investigate the direct influence of different levels of WI in sheep fed PCD and reared under such conditions on the lambs' physiological (performance, thermal, blood and urine) status, 24 healthy male growing Najdi lambs were exposed under thermo-neutral conditions to three levels of WI (100%, 67%, and 33% of their ad libitum WI or water requirement) for 6 weeks. Meteorological, production performance, thermo-physiological, as well as blood and urine biochemical measurements, were all determined. The obtained findings clearly substantiate that reducing the level of water intake (p<0.05) produced tangible effects in both 67-WI and 33-WI lamb groups. However, 67-WI lambs showed resilience to limited water availability by inducing proportional physiological responses in their production performances, body temperatures, blood metabolites, and renal function but within the homeostatic ranges similar (p>0.05) to 100-WI lambs. Results collectively signify that diminishing WI up to 33% in lambs (fed on PCD and reared under comfortable conditions) would ensure that water is adequately conserved under prevailing water scarcity and can be implemented without compromising their homeostatic functions. Such applied approaches can consequently have a pragmatic aspect through improving water management approaches required for PCD-based sheep production under water scarcity conditions, which is crucial to economical animal production and responsible animal stewardship. Feasibility studies are thereby highly recommended.
Forage Accumulation and Nutritional Characteristics of Brachiaria Cultivars Grown in a Semi-arid Environment J. G. Rodrigues; G. dos S. Difante; L. C. V. Ítavo; M. de G. Pereira; A. L. C. Gurgel; A. B. G. da Costa; E. L. de L. Veras; G. O. de A. Monteiro; A. M. Dias; C. C. B. F. Ítavo
Tropical Animal Science Journal Vol. 46 No. 1 (2023): 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.2023.46.1.85

Abstract

The evaluation of the nutritional value and parameters of ruminal fermentation of tropical forages is important, aiming at its efficient use in ruminant feeding. This study was developed to evaluate the forage accumulation, chemical composition, protodioscin content, digestibility, and in vitro degradation kinetics of different Brachiaria spp. cultivars in different evaluation periods. The research was carried out in the semi-arid region of Brazil, from April 2016 to April 2017. The experiment was laid out as a split-plot arrangement in a randomized block design in which five cultivars (B. decumbens cv. Basilisk, and B. brizantha cvs. Marandu, Paiaguás, Piatã, and Xaraés) represented the plot and four evaluation periods (establishment, transition, dry, and rainy) the subplot. There was a cultivar × period interaction effect for forage accumulation rate (FAR), for which cv. Xaraés showed the highest mean (54.1 kg/ha.day DM) in the rainy season. The lowest yield was found in cv. Paiaguás in the dry season (24.1 kg/ha.day DM). Cultivars Basilisk, Marandu, and Paiaguás had the highest crude protein content. The highest in vitro dry matter digestibility values were found in cv. Basilisk in the dry, transition, and rainy periods; cv. Marandu in the transition period, and cvs. Paiaguás and Piatã in their establishment. A correlation was found between the parameters of in vitro degradation kinetics and chemical composition. The protodioscin content was highest in cv. Basilisk, during its establishment (5.5 g/kg DM). Cultivars Paiaguás, Piatã, and Xaraés showed low protodioscin values (<1.0 g/kg DM). Cultivars Basilisk, Marandu, Paiaguás, Piatã, and Xaraés can be used as forage options in the semi-arid environment, as their forage accumulation potential and nutritional value are suitable for animal production even in periods of lower water availability.
Forage-Yield and Nutrient Quality of New Brown Midrib (BMR) Mutant Lines of Sorghum T. Wahyono; W. M. Indriatama; W. T. Sasongko; E. N. Shafira; T. F. Hidayat; S. Widodo; Y. Widiawati; M. N. Rofiq; Y. N. Anggraeny; A. Kurniawati; Dasumiati
Tropical Animal Science Journal Vol. 46 No. 1 (2023): 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.2023.46.1.63

Abstract

The objective of this study was to evaluate the yield, nutrient profile and in vitro digestibility of new BMR mutant lines of sorghum in Indonesia. These mutant lines were GH2.1, GH2.2, GH2.3, GH4.1, GH4.2, GH4.3 and GH4.4. One sorghum mutant line (CTY) and two national sorghum varieties (Super 1 and Bioguma) were also evaluated as controls. In vitro digestibility and rumen fermentation were measured using Ankom Daisy Fermenter and Hohenheim gas test methods, respectively. In vitro measurement consisted of ten treatments with five replications following a completely randomized design. The highest stem sugar content was found in Bioguma (11.22%) and GH4.4 (9.32%) (p<0.05). The Bioguma variety and the GH2.3 mutant line had a higher number of stem segments and fresh forage yield than the Super 1 variety (p<0.05). A greater concentration of crude protein (CP) was observed for the GH.2.1, GH2.2, GH2.3 and GH4.1 lines (p<0.05). The GH2.3 mutant line had the lowest acid detergent lignin (ADL) content (p<0.05), while Bioguma had the highest level of non-fibre carbohydrate (NFC) compounds (p<0.05). The highest relative feed value (RFV) was observed for the GH2.3 line (p<0.05). Furthermore, GH4.2 and GH2.3 had greater in vitro true digestibility (IVTD) (p<0.05) but were not significantly different from Bioguma. Regarding yield characteristics, nutrient composition and in vitro digestibility values, the highest values were found in the Bioguma variety and the GH2.3 mutant line. Except for n-valerate (nC5), significant differences in all rumen fermentation parameters were observed among sorghum cultivars (p<0.05). Regarding the interrelationship between parameters, we found a medium correlation of DMD with the ADL and cellulose content of sorghum forage (R2 = -0.489 and R2 = -0.674, respectively). Based on these findings, the GH2.3 BMR mutant line should be further developed as forage sorghum.

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