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INDONESIA
Buletin Peternakan
Published by Universitas Gadjah Mada
ISSN : 01264400     EISSN : 2407876X     DOI : https://doi.org/10.21059/buletinpeternak
Core Subject : Health, Education,
Veterinary Other
Bulletin of Animal Science is published every four months. The Annual subscription rate is Rp. 150.000,-/year. Bulletin receives original papers in animal science and technology which are not published at any other journals.
Arjuna Subject : -
Articles 1,067 Documents
 103   104   105   106   107 
Egg Production and Blood Lipid Profile Comparison Between Local Stock (Elba Chickens) and Commercial Stock (Hy-Line Brown) Ismoyowati Ismoyowati; Setya Agus Santosa; Hermawan Setyo Widodo; Muhammad Yakubu Abare
Buletin Peternakan Vol 50, No 2 (2026): BULETIN PETERNAKAN VOL. 50 (2) May 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i2.116438

Abstract

This study compared egg production and blood lipid profiles between local stock (Elba chicken) and commercial stock (Hy-line Brown) chicken. A total of 120 chickens (60 per group) were housed in individual battery cages under controlled conditions for eight weeks. Egg production data were collected daily, and blood samples were analyzed for lipid profiles at 28 weeks of age. Results showed significantly higher egg production in commercial chickens (52.57 ± 1.97 eggs) compared to local chickens (29.51 ± 8.36 eggs) (p < 0.001). Commercial chickens also demonstrated superior hen-day egg production (75.10 ± 2.81% vs 42.16 ± 11.94%, p < 0.001) and feed conversion ratio (2.13 ± 0.15 vs 2.85 ± 0.43, p < 0.001). Blood lipid analysis revealed significantly higher levels of cholesterol (120.38 ± 37.4 vs 98.84 ± 15.21 mg/dL, p = 0.02), triglycerides (213.55 ± 47.99 vs 100.23 ± 23.49 mg/dL, p < 0.001), and glucose (187.89 ± 30.79 vs 164.21 ± 21.13 mg/dL, p < 0.001) in local chickens compared to commercial chickens. A strong negative correlation was observed between egg production and triglyceride levels (r = -0.8368, p < 0.0001) across both populations. These findings demonstrate the effects of selective breeding on egg production efficiency and suggest potential differences in lipid metabolism between local and commercial chicken breeds.
Phenotypic Characteristics of Biromaru Chickens and Their Phylogenetic Relationships with Several Other Local Chicken Breeds Saifullah Saifullah; Muhammad Teguh; Farham Ramadan; Tegar Pratama; Nurul Azmizam
Buletin Peternakan Vol 50, No 3 (2026): BULETIN PETERNAKAN VOL. 50 (3) August 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i3.115543

Abstract

This study aimed to characterize the features and partial variation in the D-loop region of mtDNA in Biromaru chickens and to evaluate their genetic relationships with other Indonesian local chicken populations using nucleotide diversity. A total of 46 male and 54 female Biromaru chickens, uniformly aged (grower phase) were collected from Loru Village, Sigi Biromaru District, Sigi Regency, for phenotypic analysis. Additionally, 10 blood samples were taken for DNA extraction, amplification, genotyping, and sequencing. The mitochondrial D-loop region was specifically amplified using the primers: Forward (F): 5’-AGG ACT ACG GCT TGA AAA GC-3’ and Reverse (R): 5’-ATG TGC CTG ACC GAG GAA CCA G-3’. The sequencing results from 10 samples were compared with 17 reference D-loop sequences of Gallus gallus obtained from the GenBank database of NCBI. The genetic distance between Biromaru chickens and other Indonesian local chicken populations was relatively low (<0.099). Phylogenetic analysis revealed that Biromaru chickens grouped within a single cluster along with domestic chickens (Gallus gallus domesticus) and other Indonesian local breeds.  The Biromaru chickens showed considerable phenotypic variation. The haplotype network identified ten haplotypes among the Biromaru chicken population. In conclusion, Biromaru chickens exhibit diverse phenotypic traits and share a close genetic relationship with other local chicken populations, although some form distinct sub-clusters, indicating genetic differentiation from other regional local chickens. Therefore, Biromaru chickens can serve as a valuable local genetic resource for conservation and development programs and provide essential baseline information for future genetic research.
Fermentation Quality, Chemical Compound, and In Vitro Digestibility of the Oil Palm Fronds and Mucuna bracteata Mixed Silage Treated by Various Inoculants Susan Carolina Labatar; Okti Widayati; Bangkit Lutfiaji Syaefullah; Hotmauli Febriana Pardosi; Purwanta Purwanta; Moh Sofi&#039;ul Anam
Buletin Peternakan Vol 50, No 3 (2026): BULETIN PETERNAKAN VOL. 50 (3) August 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i3.116248

Abstract

The present study was aimed to investigate the effects of starter bacteria types and differences in forage composition (oil palm fronds (OPF) and Mucuna bracteata (MB)) of OPF silage on physical quality, fermentation characteristic, nutrient content, and digestibility. The research was conducted based on 3x3 factorial design using 3 types of inoculants (EM4, Bacillus sp., and Lactobacillus sp.) and 3 different forage proportions (28.35% OPF + 50% MB; 39.17% OPF + 39.17% MB; and 50% OPF + 28.35% MB), with four replications. The silage was incubated for 21 days, then its quality was observed including organoleptic tests, pH, lactic acid, reducing sugar, proximate analysis, and in vitro digestibility test. This study shows that the types of inoculants and the composition of silage significantly differed on the physical qualities (texture, aroma, and mold) (P<0.01), fermentation characteristics (pH before and after silage processing, lactic acid, ammonia, and reducing sugar concentration) (P<0.01), nutrient content (ash content, EE, CF, NDF, ADF, and lignin) (P<0.01), and nutrient digestibility (IVDMD, IVOMD, and IVCFD after 48 hours) (P<0.01). Bacillus sp. with 28.35% oil palm fronds (OPF) and 50% Mucuna bracteata (MB) resulted in the best quality silage in terms of texture, lactic acid content, decreasing sugar concentration, crude fiber, and lignin. The combination of EM4 with 28.35% oil palm fronds (OPF) and 50% Mucuna bracteata (MB) yielded the maximum nutritional digestibility, as measured by the IVCFD value
Evaluation of Virgin Oil as Fatliquoring Agent: Impact on The Physical Properties of Tanned Rex Rabbit Fur Dedes Amertaningtyas; Aldyon Restu Azkarahman; Azukhruf Saktian Dito; Bagus Saputra; Christbugi Welda Dellani; RLM. Satrio Ari Wibowo
Buletin Peternakan Vol 50, No 3 (2026): BULETIN PETERNAKAN VOL. 50 (3) August 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i3.117576

Abstract

This study aimed to evaluate the effect of adding virgin coconut oil (VCO) at different percentages on the physical quality of tanned rabbit fur. A total of 100 fresh Rex rabbit furs were used, randomly assigned to four treatment groups (n = 25 per group), with five replicates per treatment consisting of five pooled furs each. The study used an experimental method with a completely randomized design (CRD) consisting of 4 VCO treatment percentages: V0 (control), V1 (5%), V2 (10%), and V3 (15%). The data were analyzed using ANOVA, and if there were differences, Duncan's test was used. The results showed that the addition of VCO had no significant effect (p>0.05) on tensile strength (5,033.50-13,547.40 N/cm2) and elongation (26.25-46.85%) but had a significant effect (p<0.05) on tear strength (220.29-311.62 N/cm), and a very significant difference (p<0.01) on thickness (0.50-1.35 mm), elasticity (0.49-2.00 mm), and water absorption (90.07-125.16%). In general, the use of VCO up to a percentage of 10% can increase water absorption without significantly reducing tensile strength and elongation, but it is necessary to adjust the content and combination of other oiling agents to obtain elasticity that meets the standard
The Effects of Propionic Acid Level in Feed on the Growth Performance and Salmonella Sp. Characteristics of Kampong Chickens Lukas Pardosi; Charles Venirius Lisnahan
Buletin Peternakan Vol 50, No 3 (2026): BULETIN PETERNAKAN VOL. 50 (3) August 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i3.117679

Abstract

This study aimed to evaluate the efficacy of propionic acid supplementation in feed for reducing Salmonella sp. concentration and enhancing the growth performance of Kampong chickens. The research was conducted in Kefamenanu, East Nusa Tenggara Province, Indonesia, over five months (July to November 2024). The study used 250 six-week-old Kampong chickens. These chickens were randomly assigned to five treatment groups, each with five replicates, based on a completely randomized design. The treatment feeds consisted of: T0 (control), T1 (T0 + 0.20% propionic acid), T2 (T0 + 0.40% propionic acid), T3 (T0 + 0.60% propionic acid), and T4 (T0 + 0.80% propionic acid). The results indicated that groups T3 and T2 exhibited the highest body weights (1,775.00±4.00 g/bird/14 weeks and 1,767.40±9.01 g/bird/14 weeks, respectively), with corresponding body weight gains of 105.63±0.25 g/bird/week and 104.37±0.40 g/bird/week. These values were significantly higher (P<0.05) than those of the other treatment groups. Conversely, group T0 showed the lowest body weight (1,671.40±5.57 g/bird/14 weeks) and body weight gain (1,377.02±5.56 g/bird/14 weeks). Feed consumption was comparable across all groups, ranging from 574.63±0.87 g/bird/week (T1) to 578.14±1.12 g/bird/week (T4). However, group T0 demonstrated a significantly higher feed conversion ratio (5.86±0.18, P<0.05) than the other groups. Furthermore, group T3 exhibited the highest carcass weight (1,100.46±2.26 g/bird or 62.00±0.06%). Salmonella sp. counts were highest in group T0 (325 x 10² CFU/mL), while probiotic bacterial populations were highest in group T3 (662844 x 10⁹ CFU/mL). In conclusion, supplementing feed with 0.60% propionic acid effectively reduced Salmonella sp. populations and improved the growth performance of Kampong chickens.
Effects of Dietary Menthol Supplementation on Growth Performance, Physiological Responses, and Immune Function in Heat-Stressed Broiler Chickens Osama Ahmed Elghalid; Ahmed Mohamed Abd El-Hady; Asmaa Shawkey Elnaggar; Asmaa Maher Mohammed
Buletin Peternakan Vol 50, No 3 (2026): BULETIN PETERNAKAN VOL. 50 (3) August 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i3.117794

Abstract

Heat stress associated with climate change poses a significant challenge to poultry production, increasing interest in natural antioxidant phytochemicals as dietary mitigation strategies. This study evaluated the effects of dietary menthol on growth performance, physiological responses, and immune status in heat-stressed broiler chickens. A total of 90 Ross 308 broiler chicks were reared from 7 to 35 days of age and randomly assigned to three dietary treatments: a control diet and treated diets with two levels of menthol, 50 and 100 mg/kg. Each treatment consisted of five replicates with six birds per replicate, and feed was offered ad libitum throughout the experimental period. Dietary menthol supplementation significantly (p < 0.05) improved body weight gain at 21 and 35 days of age and reduced mortality compared to the control group. Feed conversion ratio was also significantly (p < 0.05) improved in menthol-supplemented groups, while feed intake was not significantly affected (p > 0.05). In addition, menthol increased (p < 0.05) serum total protein and globulin, reduced aspartate aminotransferase and alanine aminotransferase activities, and decreased (p < 0.05) uric acid levels, while elevating (p < 0.05) glucose, triiodothyronine, and thyroxine concentrations. These findings may suggest alterations in metabolic activity and liver-associated biochemical markers. From an immunological perspective, menthol augmented γ-globulin levels, immunoglobulin concentrations, innate immune activity, cellular immune responses, and interferon-γ production, demonstrating potential immunomodulatory effects. Ultimately, dietary menthol supplementation, particularly at 50 mg/kg, appears to be an effective natural approach for supporting growth performance, physiological responses, and immune competence in broiler chickens under heat stress conditions
Molecular Characterization of BoLA-DRB3 Exon 2 Reveals Sequence Polymorphism and Phylogenetic Relationships in Bali Cattle (Bos javanicus domesticus) Hilwa Tsabita Fidinillah; Muhammad Haidar Al Faruq; Muhammad Ridho; Asyraf E Rijal Musthofa; Yuli Yanti; Wari Pawestri; Joko Riyanto; Pita Sudrajad; Hary Suhada; Dwi Prasetyo; Shil Jin; Erni Damayanti; Muhammad Cahyadi
Buletin Peternakan Vol 50, No 3 (2026): BULETIN PETERNAKAN VOL. 50 (3) August 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i3.119111

Abstract

Polymorphisms within the major histocompatibility complex (MHC) class II, particularly the BoLA-DRB3 locus, play a critical role in immune function and disease resistance in cattle. However, the genetic diversity of this locus in Bali cattle (Bos javanicus domesticus), an indigenous Indonesian genetic resource, remains poorly characterized. This study aimed to investigate genetic diversity at the BoLA-DRB3 locus in Bali cattle through sequence polymorphism and phylogenetic analyses. Blood samples were collected from eight male Bali cattle maintained at the Denpasar Breeding Center and Forage Research Station (BPTU-HPT Denpasar) for Bali Cattle, Bali Province, Indonesia. High-quality DNA was successfully obtained from all animals, and six samples were selected for Sanger sequencing based on DNA quality. The BoLA-DRB3 exon 2 region was amplified using a newly designed primer pair, generating the expected 496-bp PCR product. Sequence alignment and phylogenetic analyses were performed using Clustal Omega, BioEdit, and MEGA XII. Sequence analysis identified several single nucleotide polymorphisms (SNPs) among the analyzed samples, indicating the presence of genetic variation within the BoLA-DRB3 locus. Phylogenetic reconstruction clustered the Bali cattle sequences with the same major clade as Bos indicus and Bos taurus reference sequences, with a mean genetic distance of 0.055 among the analyzed samples. These findings provide preliminary evidence of genetic variation in the BoLA-DRB3 of Bali cattle and establish a foundation for future studies investigating the association of BoLA-DRB3 polymorphisms with immune function, disease resistance, and adaptive genetic potential in this indigenous breed

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