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All Journal Jurnal Sain Veteriner Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Journal of Tropical Animal Science and Technology Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat JAS (Journal of Animal Science) Jurnal Umum Pengabdian Masyarakat (JUPEMAS) Tropical Livestock Science Journal
Agustina Viktoria Tae
Fakultas Pertanian, Universitas Timor
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Dentistry Economics, Econometrics & Finance Education Immunology & microbiology Languange, Linguistic, Communication & Media Nursing Public Health Social Sciences Veterinary

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Journal : Journal of Tropical Animal Science and Technology

 1 
Weight Gain, Feed Consumption, and Feed Efficiency of Kampong Chicken at the Grower Phase Supplemented with Propionic Acid Lisnahan, Charles Venirius; Elu, Clarissa Dorince; Pasi, Maria Selfiana; Tae, Agustina Viktoria
Journal of Tropical Animal Science and Technology Vol. 7 No. 2 (2025): Journal of Tropical Animal Science and Technology
Publisher : Animal Husbandry Study Program, Faculty of Agriculture, Timor University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jtast.v7i2.9454

Abstract

The study aimed to determine the effect of adding propionic acid in feed on the growth of Kampung chickens in the grower phase was conducted from July to September 2024 in Kefamenanu City, North Central Timor Regency. A total of 80 Kampung chickens aged 6 weeks with an average body weight of 400 g were used in this study. The method used was a Completely Randomized Design, consisting of 4 treatments and 4 replications, each replication consisting of 5 chickens. The treatments given were T0: control feed (without propionic acid), T1: control feed + 0.20% propionic acid, T2: control feed + 0.40% propionic acid, T3: control feed + 0.60% propionic acid. The research variables observed were weight gain, feed consumption and feed efficiency. Data analysis used analysis of variance and Duncan's multiple range test. The results showed that the average weight gain of T0, T1, T2, and T3 were 103.41±1.94, 106.07±0.58, 108.72±1.14, 109.61±1.84 g/head/week, respectively. Feed consumption was 496.83±2.82, 500.89±2.07, 502.58±1.41, 504.74±9.36 g/head/week, respectively. Feed efficiency was 20.81±0.29, 21.17±0.07, 21.63±0.20, 21.71±0.05%/head, respectively. Analysis of variance showed that the treatment had a significant effect (P<0.05) on weight gain and feed efficiency, while feed consumption was not significant. It was concluded that the use of propionic acid at a level of 0.60% in feed provided maximum results on the performance of Kampung chickens in the grower phase.
The Role of Commercial Feed Additive (Maxi-Yeast®) in Broilers Challenged with Campylobacter Jejuni on Weight Gain, Feed Consumption, Feed Conversion Ratio Wahyuni, Agnes E. T. H.; Tae, Agustina Viktoria
Journal of Tropical Animal Science and Technology Vol. 7 No. 2 (2025): Journal of Tropical Animal Science and Technology
Publisher : Animal Husbandry Study Program, Faculty of Agriculture, Timor University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jtast.v7i2.9720

Abstract

Antibiotic growth promoters (AGPs) are commonly used by the public to increase chicken growth, but they have health risks, namely causing resistance in humans and animals. Therefore, experts have begun to seek substitutes that focus on natural ingredients, such as yeast, as non-antibiotic alternatives. The most commonly used yeast probiotic is Saccharomyces cerevisiae (S._cerevisiae) var. Boulardi. One of the pathogenic microorganisms that attacks poultry is Campylobacter jejuni. This study aims to determine the effect of feed additives (S._cerevisiae), in broiler chickens on performance (weight gain, feed consumption, feed conversion ratio (FCR)) after being infected with C. jejuni. A total of 36-day-old chicks (DOC) were grouped into 3 based on feed provision, namely, commercial feed group (I), commercial feed group + AGP (II), and commercial feed group + Feed additives (S._cerevisiae) (III). The three groups were further divided into 2 treatments, namely (A) without challenge test (control) and (B) challenge test. Feed mixing was done manually, drinking was given ad libitum and vaccination was according to the field program. Weighing of body weight and remaining feed was done every week. A challenge test with C. jejuni was done on the 21st day with a concentration of 1x109 CFU/mL. The results obtained for overall weight gain in weeks 1 to 3 of each feed group, statistically did not show a significant difference (P>0.05), although the numbers showed a difference. Weeks 4 and 5 of the control group's weight gain statistically showed a significant difference between groups (P<0.05). The challenge test group, week 4 experienced a decrease in weight gain and was not statistically significantly different (P>0.05) but in week 5 there was an increase in weight and was statistically significantly different (P<0.05). Conclusion: Providing commercial feed additives (S. cerevisiae) can increase weight gain, and reduce feed consumption and FCR.  
Co-Authors Agnesia E. T. H. Wahyuni Agnesia Endang Tri H. Wahyuni Agustina Viktoria Tae, Oktovianus Rafael Nahak Ajiguna Ajiguna Alfred Nubatonis Anastasia Kadek Dety Lestari Bernadina Metboki, Bernadina Elu, Clarissa Dorince Feka, Wolfhardus Vinansius Hoar Klau, Delviana Ima Fauziah Jeffi Chandra Josua Sahala Korbafo, Elisabeth Kristina Irnasari Naikofi Kurniawan Sio, Aristo Lidwina Felisima Tae Lisnahan, Charles V. Ludji, Sherli Melani Lynda Nugrahaning Imanjati Marselinus Banu Mere, Janrigo K Nahak T.B, Oktovianus R. Naikofi, Kristina Irna Sari Noach, Steffanie Noach, Steffanie M. C. Noach, Steffanie M.C. Obe, Leonardus Frengky Oktovianus Tabenu Pareira, Magdalena Sunarty Pasi, Maria Selfiana Patricia Gertrudis Manek Sitarina Widyarini Sruti Listra Adrenalin Sukariada, Putu Juli Thomas Emanuel Manggotu Nahak Tuas, Maria Angelina Vinsa Cantya Prakasita Wahyuni, Agnes E. T. H. Yuliana Kolo