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All Journal Journal of Tropical Animal Science and Technology
Charles V. Lisnahan
Universitas Timor
Agriculture, Biological Sciences & Forestry

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Growth Performance of Native Hen at the Grower Phase (Aged 6-12 weeks) After Supplemented Arginine-Lysine in Low-Protein Fed Onsalina Kemba; Charles V. Lisnahan; Agustinus A. Dethan
Journal of Tropical Animal Science and Technology Vol 5 No 2 (2023): 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.v5i2.4136

Abstract

This study aims to determine the growth performance of female Native chickens at the grower phase (6-12 Weeks) after being given arginine-lysine in low protein feed. This research was carried out from May to August 2022 at the Kampung Chicken Housing, Sion Women's Farmer Group, Sasi Village, Kefamenanu. The material used is 80 Native chickens aged 6-12 weeks with an average body weight of 400 g. The research method used is a complete randomized design. Chickens were randomly placed for 5 treatments and 4 replications, each replication consisted of 4 bird. The treatment given was P0 (control feed + 0.60% arginine + 0.52% lysine + 18% CP); P1 (control feed + 0.70% arginine + 0.61% lysine + 17% CP); P2 (control feed + 0.80% arginine + 0.70% lysine + 16% CP); P3 (control feed + 0.90% arginine + 0.79% lysine +15% CP); P4 (control feed + 1.00% arginine + 0.88% lysine + 14% CP). Variables observed were body weight gain, feed intake and feed conversion ratio. Data analysis using variance analysis and Duncan test. The results showed that the average body weight gain at treatments P0, P1, P2, P3 and P4 were 71.67±3.75; 84.69±3.55; 105.63±3.71; 105.46±7.15; and 94.38±3.50 g/bird/week, respectively. Feed intake were 277.41±15.95; 324.98±13.20; 401.13±15.10; 397.19±30.00; and 363.30±12.06 g/bird/week. Feed conversion ratio were 3.87±0.02; 3.84±0.01; 3.80±0.02; 3.77±0.03; and 3.85±0.01. Analysis of variance showed that the treatment had a significant effect on body weight gain, feed intake and feed conversion ratio of female Native chickens at the grower phase (P<0.05). It was concluded that the use of the arginine-lysine increases body weight gain, feed intake and decreases feed conversion ratio of female Native chickens at the grower phase (6 – 12 weeks). The level of 0.80-0.90% arginine + 0.70-0.79% lysine can streamline the use of feed crude protein by 2-3% from 18% to 15-16% and provide maximum results on the performance of female Native chickens at the grower phase.
Giblet Organs and Digestive Performance of Native Chickens in the Pullet Phase Fed Diets Supplemented with Propionic Acid Agustina Viktoria Tae; Yuliana Naisali; Charles V. Lisnahan; Lukas Pardosi
Journal of Tropical Animal Science and Technology Vol. 8 No. 1 (2026): Journal of Tropical Animal Science and Technology
Publisher : Animal Science Study Program, Faculty of Agriculture, Science and Health, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jtast.v8i1.10601

Abstract

The purpose of this study was to examine the effect of propionic acid levels in feed on the performance of giblet organs and digestive tracts of pullet-phase Native chickens. A total of 80 Native chickens aged 12 weeks with an average weight of 400 g were used in this study. The research design applied was a Completely Randomized Design (CRD). Chickens were randomly divided into four treatments with four replications, where each replication consisted of four Native chickens. The treatments given were T0: control feed without propionic acid; T1: control feed + 0.25% propionic acid; T2: control feed + 0.50% propionic acid; T3: control feed + 0.75% propionic acid. Data analysis was conducted using ANOVA, followed by the Duncan Test to determine differences between treatments. The results showed that live weight, giblet weight, pancreas weight, intestine weight, intestine length, proventriculus weight, were highest in the T3 control feed + 0.75% propionic acid treatment, respectively, at 1622.36±38.24 g/head; 59.23±0.39 g/head; 3.54±0.04 g/head; 27.24±0.57 g/head; 27.24±0.57 g/head; 129.33±0.68 cm/head; 6.04±0.18 g/head. The highest giblet percentage and proventriculus percentage were in the T0 control feed treatment without propionic acid at 3.74±0.12%/head and 0.38±0.01%/head, respectively. The highest percentage of pancreas weight was in the T2 treatment of control feed + 0.50% propionic acid and the T3 treatment of control feed + 0.75% propionic acid, which was 0.22 ± 0.01%/head. The highest percentage of intestine weight was obtained in the T2 treatment (control feed + 0.50% propionic acid) with a value of 1.71 ± 0.03%/head. Analysis of variance showed that the treatment significantly affected the live weight, giblet organ weight, pancreas weight, percentage of pancreas weight, small intestine weight, intestine length, and proventriculus weight of pullet phase Native chickens (P <0.05). It can be concluded that the addition of 0.75% propionic acid to the control feed had a positive effect on the performance of the giblet organ and digestive tract of Native chickens.
Co-Authors agustina viktoria tae Agustinus A. Dethan Lukas Pardosi Onsalina Kemba Yuliana Naisali