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Marwi, Filoza
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Effects of Pre-Hatch Thermal Programming on Internal Organ Development of Crossbred Chickens in The First Week Post-Hatch Andri, Faizal; Marwi, Filoza; Arif, Ani Atul; Sudjarwo, Edhy
TERNAK TROPIKA Journal of Tropical Animal Production Vol. 25 No. 2 (2024): TERNAK TROPIKA Journal of Tropical Animal Production
Publisher : Jurusan Produksi Ternak, Fakultas Peternakan, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtapro.2024.025.02.10

Abstract

This study evaluated the effects of pre-hatch thermal programming on internal organ development of crossbred chickens in the first week post-hatch. A total of 200 fertile eggs from a crossbreed of male local chickens and commercial laying hens were used in this study. The average egg weight was 62.76 ± 4.40 g with a coefficient of variation was 7.01%. The eggs were randomly distributed into four treatment groups, each with five replicates (10 eggs per replicate). The treatments were T0: standard incubation maintained at 37.50°C throughout the entire incubation period (control); T1: standard incubation with a 6-hour daily increase to 38.50°C from days 10-18, T2: standard incubation with a 6-hour daily increase to 39.50°C from days 10-18, and T3: standard incubation with a 6-hour daily increase to 40.50°C from days 10-18. After hatch, the chicks were reared for a week and evaluated for internal organ development. The results showed that there were no significant differences among treatments (P>0.05) for all measured variables, including the absolute weights (g) and relative percentages (%) of the internal organ. The absolute weight of the heart, liver, proventriculus, gizzard, and intestine were ranged from 0.69 to 0.84, 2.68 to 2.93, 0.74 to 0.87, 6.48 to 7.05, and 7.94 to 8.42 g, respectively. Whereas, the relative weight of the heart, liver, proventriculus, gizzard, and intestine were ranged from 0.89 to 1.12, 3.46 to 3.79, 0.95 to 1.13, 8.29 to 9.11, 10.24 to 10.82%, respectively. It could be concluded that pre-hatch thermal programming can be considered a safe strategy without compromising internal organ development of crossbred chickens in the early post-hatch period.
Pengaruh Pemberian Feed Additive Ekstrak Nano Cair Jahe, Kunyit, Daun Jati dan Probiotik Terhadap Persentase Karkas dan Kualitas Fisik Daging Ayam Broiler Nuningtyas, Yuli Frita; Natsir, Muhammad Halim; Hermanto, Feri Eko; Marwi, Filoza; Fionita, Rina Aqila
TERNAK TROPIKA Journal of Tropical Animal Production Vol. 25 No. 1 (2024): TERNAK TROPIKA Journal of Tropical Animal Production
Publisher : Jurusan Produksi Ternak, Fakultas Peternakan, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtapro.2024.025.01.10

Abstract

Tujuan dari penelitian ini adalah untuk mengevaluasi ekstrak jahe, kunyit dan daun jati dalam bentuk nano cair yang ditambahkan dengan probiotik pada pakan terhadap persentase karkas dan kualitas fisik daging ayam pedaging. Variabel yang diamati dalam penelitian ini adalah persentase karkas dan kualitas fisik daging yang meliputi kadar air, WHC (Water Holding Capacity), susut masak, keempukan, dan warna (L*, a*, b*). Penelitian dilakukan selama 35 hari secara in vivo. Penelitian ini menggunakan 200 ekor DOC ayam pedaging strain Lohmann dengan berat rata-rata 43,42 g ± 2,82 dan koefisien keragaman 6,48 %. Pakan dan minuman diberikan secara ad libitum. Metode yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 5 level perlakuan feed additive (0 %, 0,2 %, 0,4 %, 0,6 % dan 0,8 %) dimana setiap perlakuan terdiri dari 5 ulangan. Data yang diperoleh dianalisis dengan menggunakan analisis varians (ANOVA) dan apabila terdapat perbedaan nyata dilanjutkan dengan Uji Jarak Berganda Duncan (DMRT). Hasil penelitian bahwa pemberian feed additive ekstrak jahe, kunyit daun jati dan probiotik bentuk cair menunjukkan persentase karkas pada P4 sebesar 80,52 %, kadar air pada P4 68,17 %, WHC pada P3 45,33 %, susut masak pada P3 26,63 % keempukan pada P0 5,95 kg/cm2, warna L pada P2 51,93, a* pada P4 1,01 dan b* pada P4 6,90. Penambahan feed additive berupa ekstraksi jahe, kunyit, daun jati berbentuk nano cair dan probiotik level 0,4 – 0,8 % optimal dalam meningkatkan persentase karkas dan kualitas fisik daging (WHC, cooking loss, warna dan keempukan) pada ayam pedaging.