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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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Selenium Application in Improving Chicory (Cichorium intybus) Productivity and Quality N. Umami; E. R. V. Rahayu; B. Suhartanto; A. Agus; M. M. Rahman
Tropical Animal Science Journal Vol. 45 No. 3 (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.2022.45.3.337

Abstract

Selenium (Se) is an essential mineral element needed by livestock and human. The amount of Se intake is largely determined by the Se content in the plants (food and feed) consumed. This study aimed to analyze the effect of Se fertilizer on the morphological characters, biomass yield, nutrient content, and in vitro nutrient digestibility of Cichorium intybus. This study was conducted for four months, starting from May to August 2019, located at the Faculty of Animal Science, Universitas Gadjah Mada. The seeds of Cichorium intybus var. Chico was sown in 24 plots and the plots were arranged in a completely randomized block design. Three levels of Se fertilization treatments (0, 3.5, and 7.5 mg/m2) were applied with 8 replicates. Plant defoliation on every 45 days: namely the first defoliation (from sowing to 45 days), the second defoliation (regrowth 1 up to 45 days), and the third defoliation (regrowth 2 up to 45 days). In all studied parameters, the results showed that chicory with Se fertilizer (3.5 and 7.5 mg/m2) was higher (p<0.05) than chicory without Se fertilization. The chicory with Se fertilizer at the level of 7.5 mg/m2 had higher (p<0.05) leaf width, biomass yield, crude protein, and Se content, and in vitro nutrient digestibility (dry matter, organic matter, crude protein) compared to that with Se fertilizer at the level of 3.5 mg/m2. Chicory at the third defoliation had a higher biomass yield and Se content than at the second defoliation. In conclusion, the best combination from this study was the third defoliation, with Se fertilizer level of 7.5 mg/m2.
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
The Influence of a Tropical Climate with a Long Dry Season on Goat Semen Quality and Seminal Fluid Change in the Kanchanaburi Province, Thailand S. Kimsakulvech; C. Nakthong; Y. Lanamtiang; T. Wongtawan
Tropical Animal Science Journal Vol. 45 No. 3 (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.2022.45.3.291

Abstract

At present, there is no information about the difference between the three seasons with a long dry period, such as Kanchanaburi province, Thailand, on goat semen quality. This study observed the climate and daytime length effects of a long dry period in three seasons in a tropical climate country on goat semen quality and seminal fluid change. The semen was collected from eight male goats once a month for one year. The libido score was assessed during semen collection. Semen volume, semen sediment volume, percentage of seminal fluid volume, seminal fluid protein, mass movement, motility, concentration, and spermatozoa membrane integrity were evaluated. Libido scores were not different between the seasons. Semen volume, seminal fluid volume, and seminal fluid protein concentration in the rainy season were significantly higher (p<0.05) than in the summer and winter. Semen sediment volume was relatively stable in all seasons and months. Meanwhile, the concentration was significantly higher (p<0.05) in the summer and winter than in the rainy season. In summer and winter, spermatozoa motility and normal spermatozoa membrane were significantly higher (p<0.05) than in the rainy season. In conclusion, temperature, THI, and daytime changes in tropical climate countries with long dry seasons were unrelated to semen quality, seminal fluid change, and sexual behavior. But the increase in humidity in the rainy season after long dry seasons has dropped semen quality, resulting from increased volume and protein levels in seminal fluid.
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.
Egg Production, Egg Quality, and Fatty Acid Profile of Indonesian Local Ducks Fed with Turmeric, Curcuma, and Probiotic Supplementation I. Ismoyowati; D. Indrasanti; A. Ratriyanto; Sumiati
Tropical Animal Science Journal Vol. 45 No. 3 (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.2022.45.3.319

Abstract

Indonesian local ducks are commonly raised for egg production purposes. However, the performances of these ducks are still variable and must be improved. This study investigated the effects of turmeric, curcuma, and probiotic supplementations on the egg production and quality of Indonesian local ducks, emphasizing the eggs’ fatty acid profile. Two hundred female local ducks aged 16 weeks were randomly allotted to four dietary treatments with five replicates of 10 birds. The ducks were fed a corn and rice bran-based diet containing different supplements, i.e., a diet without supplementation as the control diet, a diet supplemented with turmeric at the level of 4%, a diet supplemented with curcuma at the level of 4%, and a diet supplemented with starbio probiotics at the level of 2%. The measured data were analyzed using analysis of variance using the 13 Systat program and continued with Duncan’s Multiple Range Test. Turmeric supplementation increased egg production compared with the control, and the duck fed probiotics consumed more feed than the control. Curcuma supplementation generated the lowest feed consumption, egg production, and physical egg quality than the other treatments (p<0.05). The probiotics supplementation enhanced the blood high-density lipoprotein concentration (p<0.05). Turmeric, curcuma, and probiotics supplementations generate variable responses in egg production and egg quality, including the fatty acid profile in the eggs. Turmeric and probiotics supplementations positively impact egg production, egg quality, or unsaturated fatty acid profile in the egg. However, curcuma supplementation decreased egg production and egg quality of local ducks. Furthermore, the fatty acid profile was not influenced by these supplements. It is concluded that supplementation of turmeric at the level of 4% and probiotics at the level of 2% in the diet can increase egg production and egg quality of local duck.
The Color Fastness and Quality of Eco-Printed Leather with Different Types of Mordant in Natural Dyes from Mangrove Extract (Rhizophora mucronata) W. Pancapalaga; E. Ishartati; T. Ambarwati
Tropical Animal Science Journal Vol. 45 No. 3 (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.2022.45.3.368

Abstract

This study evaluated the color fastness and crust quality of eco-printed leather using various types of mordant in the natural dye of mangrove extract. This study used 20 sheepskin crusts and mangrove bark extract. This experimental study employed a Completely Randomized Design (CRD) with different mordant types as the treatments. The types of mordant used were Aluminum Sulfate (Al2(SO4)3), Calcium Carbonate (CaCO3), Citric Acid (C6H8O7), and Ferrous Sulfate (FeSO4). The results showed that the use of Ferrous Sulfate (FeSO4) as a mordant gave a darker color and produced better color fastness on eco-printed leather to dry and wet rubbing with a value of 5 (very good), to washing with a value of 4-5 (good), and to sweat with a value of 5 (very good). The use of Ferrous Sulfate (FeSO4) as a mordant improved the tensile strength (p= 0.078), decreased the elongation (p= 0.008), increased the elasticity (p= 0.000), and increased the cracking resistance (p= 0.013) of the eco-printed leather as well as produced more stable stitch-tear strength of the eco-printed leather. It is concluded that using Ferrous Sulfate (FeSO4) as a mordant gives a brownish yellow color, increases color fastness to wet rubbing, dry rubbing, washing, sweating, improves crust qualities especially tensile strength and cracking resistance, and decreases the elongation of eco-printed leather.
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.
Bone Measurements of Arginine Deficient Broilers Growing under Warm Temperatures H. T. Dao; A. F. Moss; E. J. Bradbury; R. A. Swick
Tropical Animal Science Journal Vol. 45 No. 3 (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.2022.45.3.356

Abstract

The effects of L-arginine (Arg) and L-citrulline (Cit) supplementations in an Arg-deficient reduced-protein diet on tibia morphology and mineral composition were investigated in broilers maintained at the thermo-neutral (NT) and cyclic warm temperature (WT). Seven hundred and twenty Ross 308 male broilers were brooded together for the first 7 days and randomly assigned to four dietary treatments with 12 replicates of 15 birds each from days 8 to 35. The dietary treatments were standard protein diet (SP) with 22.3% and 20.9% crude protein in grower and finisher, respectively, an Arg-deficient reduced-protein diet with 2.5% lower protein (RP), and RP added with Arg (RP-Arg) or Cit (RP-Cit) at 0.28%. Dietary treatments were fed from day 8 with average bird’s body weights of 177±3.25 g. Cyclic warm temperature (33 °C ± 1 °C for 6 h per day) was applied in one of the climate-controlled rooms during the finisher phase (21 to 35 day), resulting in a 2 × 4 factorial arrangement of treatments with the factors were the dietary treatment and temperature. Birds fed the RP diet had lower tibia breaking strength (day 28), ash (day 35), and diameter (days 21 and 28) compared to those offered the SP diet (p<0.05). Birds fed the RP diet had lower serum K and tibia B and higher tibia Mn level on day 21; higher serum Ca, P, and Mg, and lower tibia B level on day 28 compared to the SP-fed birds (p<0.05). Supplementation with Arg or Cit compensated for the adverse effects of the RP diet on these traits (p<0.05). Interactions showed tibia diameter decreased in birds fed the SP diet compared to the RP and RP-Cit diets only when raised under cyclic WT on day 35 (p<0.05). Thus, supplementation of Arg or Cit to the RP diet was necessary to support bone morphology and mineralisation under normal and warm temperatures.
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.

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