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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 1,056 Documents
 102   103   104   105   106 
Effect of Initial Cutting Age on Morphology, Biomass Production, Fiber Content, and In-Vitro Digestibility of Regrowth in Sunn Hemp (Crotalaria juncea L.) Herdi, Danil; Prasojo, Yogi Sidik; Umami, Nafiatul; Suhartanto, Bambang; Aliyatiddin, Himmah
Buletin Peternakan Vol 50, No 2 (2026): BULETIN PETERNAKAN VOL. 50 (2) May 2026 : In Progress
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i1.112325

Abstract

Sunn hemp (Crotalaria juncea L.) is a fast-growing leguminous plant widely used as a cover crop and green manure due to its high biomass yield and ability to improve soil fertility. However, its potential as a forage source remains underexplored, particularly during the regrowth phase, which is critical for sustainable feed production. This study aimed to determine the effect of the first cutting age on morphology, biomass production, fiber content, and in vitro digestibility of regrowth in sunn hemp (Crotalaria juncea L.). A completely randomized design (CRD) with a unidirectional pattern was used, consisting of three cutting ages (6, 7, and 8 weeks), each with three replications. The observed variables included morphological characteristics (leaf length, leaf width, stem diameter, and plant height), biomass production, fiber content (NDF and ADF), and in vitro dry matter (DM) and organic matter (OM) digestibility. Data were analyzed using analysis of variance (ANOVA), and mean differences were tested with Duncan’s Multiple Range Test (DMRT). The results showed that cutting age had a significant effect (P<0.05) on morphology, biomass production, and in vitro digestibility of DM and OM, but had no significant impact (P>0.05) on fiber content of the first regrowth of sunnhemp. Cutting age of 6 weeks resulted in the highest values (P<0.05) for leaf length (12.78 cm), leaf width (3.18 cm), plant height (133.76 cm), stem DM yield (2.77 tons/ha), leaf DM yield (2.39 tons/ha), stem DM digestibility (52.23%), leaf DM digestibility (82.45%), stem OM digestibility (47.26%), and leaf OM digestibility (77.61%). In conclusion, a cutting age of 6 weeks improved leaf length, leaf width, plant height, biomass production, and in vitro digestibility (DM and OM) of the first regrowth of sunn hemp
Effects of Lemuru Fish Oil, Fe, Zn, and Cr Supplementation on Performance, Blood Profile, and Organ Development of Sentul Chickens Aurelia, Marsha Adinda; Mutia, Rita; Sumiati, Sumiati; Nadia, Rizky
Buletin Peternakan Vol 50, No 1 (2026): BULETIN PETERNAKAN VOL. 50 (1) February 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i1.112948

Abstract

This study aimed to evaluate the effects of diet containing Lemuru fish oil supplemented with iron (Fe), zinc (Zn), and chromium (Cr) on growth performance, blood profile, and internal organ development in Sentul chickens, a native Indonesian breed. There were four experimental diets following a completely randomized design (CRD), each with five replicates and ten chickens per repetition, namely T0 (Control), T1 (diet containing 2.5% Lemuru fish oil), T2 (diet containing 2.5% Lemuru fish oil + 20 ppm Fe, 60 ppm Zn, 0.4 ppm Cr), and T3 (diet containing 2.5% Lemuru fish oil + 40 ppm Fe, 120 ppm Zn, 0.8 ppm Cr). Feed and water were provided ad libitum for 84 d. Parameters measured included body weight gain, feed intake, feed conversion ratio, Income Over Feed Cost, relative organ weights, intestinal length and, blood profile. Treatments did not significantly affect growth performance (p>0.05), with body weight at 84 d ranging from 905.70 to 962.93 g/b, feed intake ranging from 2958.15 to 2999.03 g/b and feed conversion ratio between 3.15 and 3.54. Hematological analysis revealed significant effects on erythrocyte and leukocyte counts, as well as lymphocyte percentage, with the highest erythrocyte count in T2 (2.83 × 106/µL) and the highest lymphocyte proportion in T1 (51.76%). Most internal organ weights did not differ significantly, except for the proventriculus. In summary, Lemuru fish oil with Fe, Zn, and Cr supplements did not adversely affect growth performance. When used at moderate dosages, the combination of fish oil and trace minerals improved economic values through IOFC, erythrocyte count, enhanced intestinal development, and immune characteristics, providing information on feeding strategies for native poultry. 
Development of a Duplex qPCR Assay for Detecting Porcine Adulteration in Gudeg Krecek: A Complex Traditional Indonesian Food Matrix Volkandari, Slamet Diah; Jenie, Siti Nurul Aisyiyah; Rohman, Abdul; Erwanto, Yuny
Buletin Peternakan Vol 50, No 1 (2026): BULETIN PETERNAKAN VOL. 50 (1) February 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i1.114431

Abstract

Ensuring halal authenticity in traditional bovine hide-based products, such as Krecek (rambak cracker in Gudeg), is challenging because of the visual similarity between bovine hides and porcine skin and the severe DNA degradation caused by the intensive processing (frying and boiling in coconut milk) of these products. This study developed and validated a Duplex SYBR Green qPCR assay targeting the porcine-specific mitochondrial ND4L gene and eukaryotic 18S rRNA gene as an internal amplification control (IAC). Optimization of the primer concentrations revealed that a 2:1 ratio (ND4L:18S rRNA) provided the most balanced amplification of the target genes. The assay demonstrated high specificity, distinguishing the porcine target from the IAC by distinct melting temperatures (Tm): ND4L at ~78.0°C and 18S rRNA at ~85.0°C. The method was validated with a limit of detection (LOD) of 500 pg/µL, a CV of 0.60%, and specificity against 18 non-target species. An analysis of 42 commercial Krecek samples (labelled as beef) collected from traditional Gudeg vendors in Yogyakarta showed no porcine-specific melting peaks. The 100% IAC melting peak (Tm ~85.0°C) was detected in all samples, confirming the successful recovery of amplifiable DNA despite the complex sample matrix. These results confirm the absence of porcine adulteration in the surveyed products and establish the proposed duplex qPCR as a robust tool for routine halal verification of highly processed, high-fat food products.
Sex-Based Correlation and Regression between Body Weight and Morphometric Traits of Jawarandu Goats Harahap, Ratna Sholatia; Daulay, Winni Liani; Wibowo, Sarwo Edy; Gushairiyanto, Gushairiyanto; Wiyanto, Eko; Rosadi, Bayu; Ediyanto, Helmi; Depison, Depison
Buletin Peternakan Vol 50, No 1 (2026): BULETIN PETERNAKAN VOL. 50 (1) February 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i1.114440

Abstract

The aims of this study was to explore the relationship between body weight and morphometric characteristics in Jawarandu goats raised in Tanjung Jabung Barat, Provincy Jambi. A total of 40 Jawarandu goats (24 males and 16 females) aged 12-24 months were utilized in this study. The traits recorded in this study included body weight and morphometric characteristic. These morphometric variables were later utilized in correlation, regression, and principal component analysis (PCA) to characterize the multivariate structure of body conformation in both male and female Jawarandu goats. Analysis statistics for all morphometric traits were calculated using IBM SPSS Statistics, Minitab, and RStudio. The result showed that the male Jawarandu goats exhibited superior morphometric performance (P<0.05) compared to females in several parameters, including horn length, muzzle circumference, head length, chest depth, rump height, leg circumference, and tail length. The PCA analysis results showed that the first two principal components were able to explain 61.6% of the total variation in the data, with Dimension 1 (51.4%) as the dominant component, showing a clear gap between male and female individuals. The correlation between body weight and body length in males was very strongly correlated (r = 0.817), whereas in females, the correlation was moderate (r = 0.550). The regression models varied among the combined population, males, and females, indicating sex-based differences in growth patterns and body proportions. This approach is particularly valuable in breeding and livestock management programs, especially in field conditions where direct weighing is often impractical.
Morphometric Characterisation of Ongole-Grade Cattle from a Breeding-Source Area: Baseline Phenotypes to Support Selection and On-Farm Conservation Herviyanto, Doni; Nurgiartiningsih, Veronica Margareta Ani; Kuswati, Kuswati; Marjuki, Marjuki; Subagyo, Ifar; Maylinda, Sucik; Winarto, Priyo Sugeng
Buletin Peternakan Vol 50, No 1 (2026): BULETIN PETERNAKAN VOL. 50 (1) February 2026
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i1.115078

Abstract

Ongole-grade cattle are a major locally adapted beef resource in Indonesia, yet breeding-source village populations often lack quantitative baseline phenotypes to support objective selection and on-farm conservation. This study characterised age-standardised morphometric traits of Ongole-Grade cattle from the breeding-source population in Napis Village (Bojonegoro, East Java). A cross-sectional survey was conducted on 356 clinically healthy cattle (143 males and 213 females) aged 24–48 months. Twelve linear measurements were recorded (withers height, body length, chest girth, chest depth, rump height, rump width, cervical/thoracic/lumbar vertebral lengths, scapula length, head length and head width) and standardised to 24 months using allometric size correction prior to analysis. Sex effects were tested using one-way ANOVA and Tukey comparisons, and principal component analysis (PCA) was performed separately by sex on z-standardised traits. All traits differed between sexes (p ≤ 0.002). Males were larger for most frame and head/axial traits (e.g., withers height, body length, chest depth, rump height, cervical and lumbar vertebral lengths, scapula length, head length and head width; p < 0.001), whereas females were larger for rump width, chest girth and thoracic vertebral length (p ≤ 0.002). PCA revealed a consistent conformation structure in both sexes, with PC1 representing a general size axis (47.3% variance in males; 42.7% in females) and PC2 capturing proportionality (shape), increasing cumulative explained variance to 70.8% in males and 64.5% in females. These results provide population-specific morphometric references and multivariate descriptors that can strengthen selection criteria and recording schemes for Ongole-Grade cattle in breeding-source village systems.
Comparative Effects of Selenium and Gonadotropin Supplementation on In Vitro Maturation of Bligon Goat Oocytes Sastranegara, Arina Dinar Nurfadilla; Agustina, Rona; Diatmono, Dio Fico Felsidan; Padmawati, Fransisca Gani; Sitaresmi, Pradita Iustitia; Bintara, Sigit; Widayati, Diah Tri
Buletin Peternakan Vol 50, No 2 (2026): BULETIN PETERNAKAN VOL. 50 (2) May 2026 : In Progress
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v50i2.115278

Abstract

Selenium (Se) is a novel addition to in vitro maturation (IVM) media, unlike the traditional gonadotropin hormone. This highlights the advancements in reproductive biology and potential strategies to enhance oocyte maturation. This research was conducted to determine the effect of Se and gonadotropin hormone supplementation into maturation medium on the in vitro oocyte maturation of Bligon goat. Ovaries from Bligon goats were obtained from a slaughterhouse in Special Region of Yogyakarta. High-quality oocytes (grades A and B) were retrieved through aspiration, washed, and cultured in medium beneath mineral oil. Three experimental conditions were established: 50 μL of unsupplemented medium (T0), 48 μL of medium + 2 μL of gonadotropin (T1), and 48 μL of medium + 2 μL of Se (T2). The culture process was conducted for 24 h at 39°C, 95% humidity, and 5% CO2. Oocyte maturation was evaluated based on cumulus cell expansion, and the data obtained were analyzed using One-Way ANOVA, followed by Tukey’s Post Hoc test. The results indicated that the inclusion of either Se (86.26±7.20%) or gonadotropin (88.13±7.85%) in the IVM medium significantly enhanced (p<0.05) the maturation rate compared with that of the unsupplemented group (50.09±11.90%). However, there was no significant difference (p>0.05) between the two supplements. In conclusion, both Se and gonadotropin hormones proved to be effective supplements for improving the maturation rate of Bligon goat oocytes.

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