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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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Utilization of Dietary Maggot Frass on the Performance, Carcass Percentage, Digestive Organs, and Economic Value of Muscovy Ducks Utama, C. S.; Cahya, R. I.; Sulistiyanto, B.
Tropical Animal Science Journal Vol. 47 No. 1 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.1.104

Abstract

This study aimed to examine the effect of using maggot frass level inclusion in the diet on the performance, digestive organs, immune organs, and economic value of Muscovy Ducks. The study employed a completely randomized design with four treatments and five replications. The treatments used were: T0= 100% basal feed, T1= 80% basal feed + 20% maggot frass, T2= 60% basal feed + 40% maggot frass, and T3= 40% basal feed + 60% maggot frass. This study involved 300 Muscovy ducks aged 4 days, weighing 40.52 ± 4.81 gram/bird, and spanning a rearing period of 8 weeks. The obtained data was subjected to analysis of variance, followed by Duncan’s test (p<0.05) for significance. The results showed that the increase in body weight, final weight, IOFDC, N retention, and carcass percentage decreased along with increasing maggot frass content. There was an increase in feed consumption, AME, TME, and crude fiber digestibility when giving maggot frass. There is a tendency for performance to decrease as the percentage of maggot frass in duck feed increases, but maggot frass can still be used at a percentage of 40%. Based on the study’s findings, the use of maggot frass up to 40% can reduce feed operational costs and positively affect the IOFDC value.
Heavy Metals Cd, Hg and Pb in Fresh Milk from Dairy Farms in South Jakarta Analyzed by ICP-MS Silalahi, E. M.; Lioe, H. N.; Faridah, D. N.
Tropical Animal Science Journal Vol. 46 No. 4 (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.2023.46.4.502

Abstract

Determination of heavy metals cadmium (Cd), mercury (Hg), and lead (Pb) in fresh milk refers to the FDA 2020 method by inductively coupled plasma mass spectrometry (ICP-MS) was verified in this study. The objective of this study was to evaluate the heavy metal concentrations in fresh milk produced by traditional dairy farmers in Jakarta, a metropolitan city, analyzed by the verified method. Ninety-four milk samples were collected from 18 dairy farmers in southern Jakarta, which is the concentrated location of traditional dairy farms in Jakarta nowadays. Wet digestion was performed using microwave digestion with the reagents 65% HNO3, 30% H2O2, and 30% HCl to extract these samples. The analytical performance of the method was as follows: linearity (R value ≥ 0.9975), precision (RSD range 7.66%–13.38%), recovery values (tested on 0.10 ng/g to 1.0 ng/g milk) at 88%-102%, limits of Cd, Hg, and Pb detections at 0.41 ng/g, 0.86 ng/g, and 1.20 ng/g respectively. The results showed that the heavy metals concentrations in fresh milk were obtained with a range of Cd from not detected (nd) to 1.92 ng/g, Hg from nd to 9.85 ng/g, and Pb from nd to 13.24 ng/g. The concentrations were below the national standards for Cd, Hg, and Pb in milk and milk products, and Pb was below the Codex standard for fresh milk. The results of rapid risk assessment on Cd and Hg in fresh milk are below the provisional tolerable monthly intake (PTMI) of Cd according to Joint FAO/WHO Expert Committee on Food Additives (JECFA 2023) and the provisional tolerable weekly intake (PTWI) of Hg according to JECFA 2011. Hence, the consumption of fresh milk in South Jakarta gave no health concern. Pb was not assessed due to no tolerable intake, according to JECFA.
Development, Quality, and Production Parameters of In Vitro Embryo in Anatolian Water Buffaloes Yılmaz, M. A.; Kaymaz, M.; Ergün, Y.
Tropical Animal Science Journal Vol. 47 No. 1 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.1.1

Abstract

The aim of the study was to determine in vitro embryo development, embryo quality, and in vitro embryo production (IVEP) parameters by using Anatolian water buffaloes (AWB) oocytes. In this study, 184 ovaries of 92 AWB obtained from slaughterhouses were used. The tissue culture medium (TCM-199) was used for in vitro maturation (IVM), Brackett & Oliphant (BO) medium for in vitro fertilization (IVF), and Charles Rosencrans 1 amino acid (CR1aa) medium for in vitro culture (IVC). A total of 395 oocytes (2.15 per ovary) were obtained from the ovaries. Frozen AWB sperm was used for fertilization. The number of cleavages at the 24th hour was 93 out of 302 (30.79%), the number of morulae and compact morula at the 96th hour was 53 out of 302 (17.55%), the number of blastocysts at 7th day was 29 out of 302 (9.60%), and the number of hatched blastocysts were 12 out of 302 (3.97%) on the 8th and 9th days. In the quality assessment of 29 blastocysts recovered on day 7 in IVC, 7 of them (24.13%) were of the code 1 quality, 9 of them (31.03%) were of the code 2 quality, 8 of them (27.50%) were of the code 3 quality, and 5 of them (17.24%) were classified as the code 4 quality. This study provides the first data on in vitro embryo development, embryo quality classification, and embryo production in AWB. As a result, the potential of oocytes AWB for IVEP has been revealed, and a scientific background has been provided for future studies.
Productivity, Carcass Traits, and Meat Quality of Local Lambs Fed with Carica pubescens Seeds Meal Idayanti, R. W.; Istianah, I.; Putri, S. N. H.; Fauziah, A. N.; Murniyadi, Z.; Esnadewi, L. G.; Purbowati, E.; Arifin, M.; Purnomoadi, A.
Tropical Animal Science Journal Vol. 47 No. 1 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.1.87

Abstract

This study aimed to determine the effect of substituting agricultural by-products of Carica pubescens seeds meal with some concentrates on productivity, carcass characteristics, and meat quality of local lambs. Eighteen male thin-tailed lambs with an average initial body weight of 10.68 ± 1.3 kg (3-4 months old) were treated with a completely randomized design for ten weeks. The feed ingredients were C. pubescens, Pakchong grass (PG), and concentrate (K). Feed ingredients were prepared into complete feed with a balance of forage and concentrate 40:60% with three treatments, namely: T1= 40% PG + 55% K + 5% C. pubescens; T2= 40% PG + 47.5% K + 12.5% C. pubescens; and T3= 40% RG + 40% K + 20% C. pubescens. The use of 20% C. pubescens-treated lambs was statistically different (p<0.05) regarding the increasing BWG (115.60 g/day), CPI (104.96 g/day), FCR (6.40), slaughter weight (19.62 kg), carcass weight (7.83 kg), meat weight (4.49 kg), and fat weight (1.66 kg). The treatment with 12.5% C. pubescens resulted in significantly different increasing tenderness (p<0.05) in longissimus dorsi and biceps femoris muscle pain (2.79 kgf/cm2) and (3.36 kgf/cm2), respectively. The inclusion level of C. pubescens seeds up 20% resulted in higher body weight gain, crude protein intake, feed cost ratio, slaughter weight, carcass weight, and meat weight.
Improving Feed Intake, Digestibility, Rumen Fermentation, and Blood Profiles in Kacang Goats through Pueraria phaseoloides Supplementation in Kume Grass Hay Diets Benu, I.; Jelantik, I. G. N.; Mullik, M. L.; Malelak, G. E. M.; Oematan, G.; Laut, M. M.
Tropical Animal Science Journal Vol. 47 No. 1 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.1.79

Abstract

This study was conducted to investigate the effects of supplementing Pueraria phaseoloides on feed intake, nutrient digestibility, rumen fermentation, and blood profiles in male Kacang goats fed Kume grass hay as a basal diet. Twelve male Kacang goats aged between 6 and 8 months with a mean body weight of 13.63 ± 1.40 kg were randomly assigned to four dietary treatments (three goats per treatment) in a 3x4 incomplete Latin square design. The treatments consist of a control group (P0) receiving grass hay and concentrate and three groups supplemented with 10% (P10), 20% (P20), and 30% (P30) P. phaseoloides of protein requirement on a dry matter basis. The data obtained in this study were statistically analyzed using the GLM procedure following ANOVA in SPSS Statistics for Windows, version 22. The results indicated that P. phaseoloides significantly (p<0.05) increased feed intake, with goats receiving P. phaseoloides consuming more dry matter compared to the control group (P0). Furthermore, nutrient digestibility improved (p<0.05) with P. phaseoloides supplementation. However, rumen fermentation characteristics, including NH3-N concentration, VFA concentration, and ruminal pH, did not differ significantly among the dietary treatments. Additionally, there were no significant differences in blood profiles among the Kacang goats under different dietary treatments. In conclusion, supplementation of P. phaseoloides in male Kacang goats fed Kume grass hay as a basal diet improved feed intake and nutrient digestibility but had no significant effect on rumen fermentation or blood profiles. Therefore, P. phaseoloides can be used as a feed supplement for ruminants consuming low-quality grass.
Improving the Rumen Molar Proportion of Glucogenic Volatile Fatty Acids with the Inclusion of Siam Weed (Chromolaena odorata) Meal in Pelleted Diet of Fattened Cattle Mullik, M. L.; Dato, T. O. D.; Mulik, Y. M.; Oematan, G.
Tropical Animal Science Journal Vol. 47 No. 1 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.1.97

Abstract

The objective of this metabolism study was to evaluate the efficacy of Siam weed (Chromolaena odorata) meal in pelleted diets for fattened cattle. Four 2-year-old Bali steers were assigned to four dietary treatments using a 4x4 Latin square experimental design. The treatments were pellets containing chromolaena meal at 10% (10COM), 20% (20COM), 30% (30COM), or 40% (40COM). The pellet was given at 2% liveweight (LW), and kume (Sorghum plumosum var. Timorense) grass hay was offered ad libitum. The diets were isonitrogenous (20%) and energy (11.5 MJ ME/kg DM). Dietary intake, digestibility, and rumen fermentation were the variables measured. The results showed that increasing chromolaena meal to 40% substantially decreased the nutrient intake. Dry matter intake decreased from 2.5% LW in the 10COM to 2.19% LW in the 40COM. Likewise, crude protein intake decreased from 749 g/d (10COM) to 661 g/d (40COM). On the contrary, digestibility, rumen pH, ammonia concentration (116–125 mg/dL), and volatile fatty acids were not affected. It might be concluded that chromolaena can be used as a protein source for ruminants, but at high levels of inclusion (40%) tends to reduce intake.
The Use of Enzymatic Pre-digestion of Fermented Palm Kernel Cake in the Laying Hens Diet on Production Performance, Nutrient Digestibility, Egg Quality, and Egg Chemical Content Sundu, B.; Adjis, A.; Hafsah, H.; Pamulu, M.
Tropical Animal Science Journal Vol. 47 No. 1 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.1.61

Abstract

A study was conducted to determine the effect of enzymatic pre-digestion of fermented palm kernel cake in the laying hen’s diet on the performance production, nutrient digestibility, egg quality, and egg chemical content. Palm kernel cake (PKC) was added with 3% ammonium sulfate and then fermented by using Saccharomyces cerevisiae for 5 days (FPKC). The FPKC was hydrolyzed with mannanase to produce enzymatic pre-digestion of FPKC (EPFPKC). The study used a completely randomized design with 5 treatments and 6 replications. The EPFPKC-containing diets were fed to 240 Lohmann Brown laying hens aged 19 weeks old for 3 months. The diets were D-1 (without EPFPKC), D-2 (5% EPFPKC), D-3 (10% EPFPKC), D-4 (15% EPFPKC), and D-5 (20% EPFPKC). Feed and drinking water were available at all times. Total fecal discharges were collected for three consecutive days to measure feed digestibility. The variables measured were feed digestibility, production performance, egg quality, lauric acid, cholesterol, and beta-carotene content of eggs. Data were analyzed with the variance analysis. The results showed that fermentation could increase the protein content of PKC and decrease the crude fiber content. The addition of EPFPKC in the diets increased dry matter, protein, and crude fiber digestibility and improved the quality of albumen and yolk during 28 days of storage at room temperature. Adding EPFPKC also increased the concentration of lauric acid and beta-carotene in eggs. In conclusion, the addition of 15% of enzymatic pre-digestion of fermented palm kernel cake (D-4) in the diet improves the quality of eggs stored for 28 days, and increases the concentration of lauric acid and beta carotene in eggs.
Comparison of Growth Traits of Male Bali Cattle (Bos javanicus) with Different Adult Coat Colors Suhendro, I.; Jakaria, J.; Priyanto, R.; Manalu, W.; Hartono, S.; Noor, R. R.
Tropical Animal Science Journal Vol. 47 No. 1 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.1.25

Abstract

Bali cattle have a distinct coloration that indicates the sexual dimorphism of adult cattle. However, coat color deviations are found in bulls due to either genetic impurity or inbreeding. Furthermore, information is needed to determine whether there is a relationship between coat color and cattle performance. This study aimed to evaluate the potential association between coat color deviation and the growth traits of male Bali cattle. A total of 99 adult male Bali cattle from Livestock Breeding and Forage Centre (BPTU) Denpasar, Bali, were used in this study to assess the possible association between coat color and growth capacity. Animals were grouped according to color patterns into full black (FBL), faded black (FDB), black sorel (BSR), and sorel (SRL). Periodically, growth traits of body weight (BW), wither height (WH), body length (BL), and chest circumference (CC) were measured at birth, weaning, and 365 and 730 days of age. The repeated measurement Anova analysis was used to evaluate the relation between coat color and growth traits over time. This study showed no correlation for both traits in calves due to the absence of color deviation in age. However, it turned out to be a significantly positive correlation (p<0.05) when Bali cattle reached puberty at 365 and 730 days. The black adult bulls (FBL & FDB) were significantly larger in growth traits (p<0.05) than their brown (BSR and SRL) counterparts. The coat color of male adult Bali cattle was associated with their growth traits.
Characteristics, Antioxidant, and Antihypertensive Activities of Probiotic Greek Yogurt with Roselle Extract Addition Juandini, P. A.; Arief, I. I.; Wulandari, Z.; Abidin, Z.
Tropical Animal Science Journal Vol. 47 No. 2 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.2.235

Abstract

Yogurt is one example of a functional food that can improve health and reduce the risk of diseases. Certain ingredients, such as probiotic bacteria and roselle extract, are added to yogurt to enhance its benefits. The utilized probiotic, Lactobacillus plantarum IIA-1A5, provides notable antimicrobial benefits. Additionally, the incorporated roselle extract is established to possess antioxidant and antihypertensive properties. This study aims to analyze the characteristics, antioxidant, and antihypertensive activities of probiotic Greek yogurt (PGY) and probiotic Greek yogurt with roselle extract (PGYR). The roselle extract added to the Greek probiotic yogurt was 3%, and the bacteria used in the fermentation process for both treatments were S. thermophilus IFO 13957, L. bulgaricus IFO 13953, and L. plantarum IIA-1A5. Each treatment was replicated three times in duplicate. The results showed that the addition of roselle extract to probiotic Greek yogurt significantly influenced (p<0.05) the antioxidant and antihypertensive activity, water activity (aw), pH, total acidity (TAT), and the color aspect in the hedonic test and the flavor, color, and aroma aspects in the hedonic quality test. The antioxidant activity and antihypertensive activity tests yielded significantly different results. The antioxidant activity increased from 29.32% (PGY) to 44.93% (PGYR), while the antihypertensive activity increased from 35.68% (PGY) to 81.36% (PGYR). This study concluded that the characteristics of PGYR have met the SNI standards and have a higher antioxidant and antihypertensive activity value than PGY. PGYR also has a promising potential for commercial development due to its health benefits.
Genetic Diversity and Population Structure of Taurine Cattle Using STR Markers in Burkina Faso, West Africa Tapsoba, A. S. R.; Sawadogo, S. E.; Yougbaré, B.; Traoré, F. G.; Béré, F.; Sanou, M.; Tamboura, H. H.; Bayala, B.; Pichler, R.; Traoré, A.; Periasamy, K.
Tropical Animal Science Journal Vol. 47 No. 2 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.2.131

Abstract

Burkina Faso relies on its substantial bovine population for meat and milk production, ensuring food security. The country hosts three primary taurine cattle populations: Lobi, Gourounsi Nahouri, and Gourounsi Ténado. These cattle are adapted to local conditions and exhibit valuable trypan tolerant traits, playing a crucial role in sustaining local communities and holding cultural and socio-economic significance. This study aimed to assess the genetic diversity and structure of Burkina’s primary taurine cattle populations using 27 microsatellite markers. Blood samples from 143 cattle representing these populations were genotyped. The analysis included assessing genetic diversity, deviations from Hardy-Weinberg equilibrium, calculating genetic distances, and population structure. The results revealed that all loci were polymorphic, indicating high allelic diversity. The overall mean FIS was moderate (0.028), ranging from -0.36 (CSRM60) to 0.73 (INRA035). Genetic differentiation between populations was moderate, accounting for 4% of the total differences. The highest pairwise FST was observed between Lobi and Gourounsi Ténado. The neighbor-joining tree displayed high admixture levels between Gourounsi populations, while Lobi cattle clustered as a distinct population. The population structure analysis indicated significant zebu gene introgression in Burkina taurine populations with relatively higher levels of admixtures in Gourounsi cattle compared to Lobi. The study provided a thorough genetic analysis of Burkina Faso's taurine cattle populations, uncovering the diversity and population structure. The study also revealed the differences in the prevalence of tsetse flies and associated trypanosomosis across the native tracts of Burkinabe taurine cattle populations had shaped the level of zebu introgression in them.

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