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All Journal Buletin Peternakan AGRIMOR JAS (Journal of Animal Science) Pro-Life Animal Production : Indonesian Journal of Animal Production JURNAL ILMIAH PETERNAKAN TERPADU Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Bakti Cendana: Jurnal Pengabdian Masyarakat Journal of Tropical Animal Science and Technology Jurnal Pengabdian UNDIKMA Livestock and Animal Research JAS (Journal of Animal Science)
Lisnahan, Charles V.
Timor University
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Journal : Buletin Peternakan

 1 
Effects of L-Isoleucine Supplementation in the Diet on the Growth Performance of Kampong Chicken at the Starter Phase (1-6 Weeks) Lisnahan, Charles Venirius; Pardosi, Lukas; Nahak, Oktovianus Rafael
Buletin Peternakan Vol 48, No 3 (2024): BULETIN PETERNAKAN VOL. 48 (3) AUGUST 2024
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v48i3.91596

Abstract

This study aimed to determine the effect of L-isoleucine supplementation in the diet on the growth performance of Kampong chickens at the starter phase (1-6 weeks). This study was conducted at Kefamenanu, East Nusa Tenggara Province, Indonesia, from May to June 2023. A total of two hundred and fifty-week-old Kampong chickens with an average initial weight of 59.03±0.52 g were used in the study. The chickens were divided into five treatments with five replications based on a completely randomized design. The diet treatments were: T0 (control feed); T1 (T0 + 0.20% L-isoleucine, NRC, 1994 for broilers); T2 (T0 + 0.30% L-isoleucine); T3 (T0 + 0.40% L-isoleucine); and T4 (T0 + 0.50% L-isoleucine). The parameters observed were body weight, weight gain, feed intake, feed conversion ratio, carcass weight, and carcass percentage. The data obtained were analyzed using variance analysis and the Duncan test. The study result showed that the groups T3 and T2 had the highest body weight (330.76±1.29; 334.48±1.47 g/bird, respectively). The highest weight gain was in group T2 (275.54±1.39 g/bird/5 weeks). Group T3 had the highest feed intake (613.15±5.79 g/bird/5 weeks) and the lowest feed conversion ratio (2.22±0.02). The highest carcass weight was in groups T2 and T3 (189.95±1.17 and 189.32±0.65 g/bird, respectively), while the highest carcass percentage was in group T2 (57.43±0.47 %/bird). The statistical analysis indicated that body weight, weight gain, feed conversion ratio, and carcass weight were affected by the level of L-isoleucine (p<0.05). In contrast, feed intake and carcass percentage were not significant. It was concluded that supplementation with 0.40% L-isoleucine to the diet of Kampong chicken resulted in optimal growth performance at the starter phase (1-6 weeks).
Co-Authors Agustina Foni Agustina Viktoria Tae Agustinus A. Dethan Agustinus Agung Dethan Alfonsius Bria Alfonsus Seran Alfred Nubatonis Angela Lake Arta S. Kasse Aurelia Abi Azor Yulianus Tefa Baso, Budiman Bira, Gerson Frans Carla Elisabeth De Araujo Deddyano Kandido Son Dira Asri Pramita Elu, Clarissa Dorince Elu, Maria Eriska Gerson F Bira Gerson F. Bira Gerson Frans Bira Irna Oktoviana Selan Lukas Pardosi Manalu, Adelya I Maria F. E. Wamur Martha Ludigadris Amleni Metriana Lalisuk Modesta Salu Nahak, Oktavianus Rafael Nahak, Oktovianus Rafael Naisali, Yuliana Natalius Abi Nubatonis, Agustinus Oktovianus R. Nahak Oktovianus R. Nahak Oktovianus R. Nahak, T.B Oktovianus Rafael Nahak Oktovianus Rafael Nahak Oktovianus Rafael Nahak Ori Onesimus Maunaben Pasi, Maria Selfiana Polikarpia Wilhelmina Bani Purwantiningsih, Theresia I. Regina Funan Risald Selviana Suni Serfina Kolo Sri Harimurti Sri Harimurti Stefanus Kolo Tae, Agustina Viktoria Theresia I. Purwantiningsih Theresia Ika Purwatiningsih Uduk, Mersiana Ullu, Hevi Herlina Umbu Joka Viktor Fernandes Fahik Welsiliana Wihandoyo Wihandoyo, Wihandoyo Wihandoyo, Wihandoyo Wilda Lumban Tobing Yovita Florida Seran Yuliana Mau Zuprizal (Zuprizal)