Journal of Tropical Animal Science and Technology https://jurnal.unimor.ac.id/index.php/JTAST <p>Journal of Tropical Animal Science and Technology <strong>(ISSN On Line : 2685-452X)</strong> merupakan jurnal ilmiah yang diterbitkan oleh Program Studi Peternakan, Fakultas Pertanian, Universitas Timor. Journal of Tropical Animal Science and Technology menerima artikel asli hasil penelitian maupun review dalam bidang peternakan untuk diterbitkan. Objek kajian yang dapat diterbitkan JTAST adalah hasil penelitian pada berbagai jenis ternak sapi, kerbau, domba, kambing, babi, kuda, dan unggas. Adapun topik&nbsp; menarik yang dapat diterbitkan oleh JTAST meliputi sistem produksi ternak potong dan unggas, genetika dan pemuliaan ternak, fisiologi dan reproduksi ternak, nutrisi dan teknologi makanan ternak, teknologi hasil ternak, bioteknologi ternak, tingkah laku dan kesejahteraan ternak, lingkungan hewan, serta sosiol ekonomi peternakan. Jurnal ini terbit dua kali setahun pada Bulan Januari dan Juli.</p> Animal Husbandry Study Program, Faculty of Agriculture, Timor University en-US Journal of Tropical Animal Science and Technology 2685-452X Partial VFA and Acetate/Propionate Ratio Goat Feed WithThe Addition of Piper Betle Linn Flour https://jurnal.unimor.ac.id/index.php/JTAST/article/view/5483 <p>The research aims to examine the effect of adding betel leaf flour to goat feed in vitro on partial VFA production and the acetate/propionate ratio. The research material used betel leaf flour, basal feed consisting of ammoniated rice straw and concentrate in a ratio of 40%: 60%. The media used for in vitro experiments was rumen fluid taken from 3 goats immediately after the goats were slaughtered. The research was designed according to a Completely Randomized Design (CRD) with treatments namely the addition of 0%, 5% and 10% betel leaf flour. The parameters observed were the production of acetic, propionic and butiic acids, as well as the ratio of acetic and propionic acids. The results of the study showed that the addition of betel leaves at the level of 0-10% in the feed had a very significant effect (P&lt;0.01) on the production of acetic and propionic acids, while the production of butyric acid and the ratio of acetic and propionic acids had no significant effect (P&gt;0.05) between treatments. Based on the orthogonal polynomial test, increasing the dose of adding betel leaf flour to the feed increased the production of acetic and propionic acids quadrater (P&lt;0.01) with peak points at 6.97% and 7.19% respectively. It was concluded that the addition of betel leaf flour to goat feed based on ammoniated rice straw tested in vitro could increase partial VFA production but did not affect the ratio of acetate and propionate formed. The use of betel leaves as a defaunator to increase VFA production is most optimal at a dose of 7.19%.</p> <p>&nbsp;</p> Miftahuddin Ahmad ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2024-01-30 2024-01-30 6 1 1 8 10.32938/jtast.v6i1.5483 Anti-Oxidant and Vitamin C Activity Test of Horseganik Clay Mask Products, Sumbawa Horse Milk https://jurnal.unimor.ac.id/index.php/JTAST/article/view/3829 <p>The growth of the cosmetics market in Indonesia is also projected to increase by 7% in 2021 (Databoks, 2021). "The growth of the cosmetics industry in 2017 grew 6.35%, which originally increased from 153 companies to 760 companies, and exports reached US$519.99 million compared to the previous year which was US$470.3 million. Currently, many consumers are interested with a wide selection of cosmetic products to support their appearance. The content of Sumbawa Wild Horse Milk contains probiotics and lactic acid bacteria in horse milk which can kill bad bacteria that cause acne on the face. The results of the study proved that the milk of the Sumbawa wild horse was effective as an anti-bacterial against Staphylococcus epidermidis (one of the bacteria that causes acne). The results of the study, the content of Vitamin C horse clay mask is 64.8% which corresponds to the daily requirement of vitamin C commonly known as the RDA (Recommended dietary allowance) of vitamin C which is 60 mg or the equivalent of an orange, for anti-oxidant activity IC50 10.88 ppm contained in the horsegenic mask able to reduce aging and other skin diseases caused by a lack of nutrient intake for the skin.</p> Imam Munandar ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2024-02-08 2024-02-08 6 1 9 14 10.32938/jtast.v6i1.3829 Application of Acidifier in Drinking Water on Broiler Chicken Carcass Weight https://jurnal.unimor.ac.id/index.php/JTAST/article/view/5667 <p>This study aims to study the effects of adding acidifier at different levels on carcass weight and carcass weight persentage of &nbsp;broiler chickens. The study used 100 DOC unsexed Lohmann MB-202 strains that were grouped into 4 treatment groups. Each treatment was repeated 5ntimes and each replication used 5 broiler chickens. The treatment group consisted of acidifier 0% (P0), acidifier 0,33% (P1), acidifier 0,44% (P2), and acidifier 0,55% (P3). The study was conducted for 4 weeks. The data observed were slaughter weight, carcass weight and percentage carcass of broiler chickens. The data obtained were analyzed by using variance analysis of Compact Random Design (CRD) Pattern Unidirectional and if there were differences between treatments followed by the mean difference test using Duncan's Multiple Range Test (DMRT). The results showed that adding acidifier on water had no effect on slaughter weight, carcass weight and percentage carcass of broiler chickens.</p> <p>&nbsp;</p> Risma Novela Esti ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2024-02-08 2024-02-08 6 1 15 21 10.32938/jtast.v6i1.5667 Reproductive Organ Profile of Pullet Phase Kampung Chicken After L-Isoleucine Supplementation in Feed https://jurnal.unimor.ac.id/index.php/JTAST/article/view/6102 <p>The aim of this research was to determine the effect of supplementation of L-isoleucine in feed on the reproductive organ profile of Native chickens at the pullet phase. This research was carried out from April to July 2023 at Sasi Village, Kota Kefamenanu Sub-District, North Central Timor Regency. A total of 100 Native chickens aged 6 weeks with an average weight of 400 g were used in this study. The research method used was a Completely Randomized Design (CRD) consisting of 5 treatments and 5 replications. Each replication consisted of 4 Native chickens. The treatments given were T0 (feed without L-isoleucine), T1 (T0 + 0.05% L-isoleucine), T2 (T0 + 0.15% L-isoleucine), T3 (T0 + 0.25% L-isoleucine), and T4 (T0 + 0.35% L-isoleucine). The variables observed were the weight of the ovaries, the distance between the 2 pubic bones, the distance between the pubic bone and the sternum, testicular weight and testicular volume. The data obtained were analyzed using analysis of variance and Duncan's test. The results showed that the ovarian weight for T0, T1, T2, and T3 and T4 were 1.14 ± 0.18; 1.43±0.12; 2.26±0.53; 1.76 ± 0.34 and 1.33 ± 0.27 g/head, respectively. The distance between the 2 pubic bones were 21.04 ± 0.49; 22.70±0.61; 25.40±0.82; 23.90 ± 0.46 and 22.08 ± 0.63 mm/head, respectively. The distance between the pubic bone and the sternum were 31.82 ± 1.93; 33.60±1.10; 37.04±2.36; 33.76 ± 1.27 and 31.56 ± 0.93 mm/head, respectively. Testicular weight were 5.56 ± 0.42; 6.15±1.48; 7.58±0.47; 6.80 ± 0.43 and 6.16 ± 0.40 g/head, respectively. Testicular volume were 5.04 ± 0.55; 5.82±0.41; 7.14 ± 0.50; 6.58 ± 0.47 and 6.06 ± 0.28 mL/head, respectively. Statistical analysis showed that treatment had a significant effect on ovary weight, the distance between the 2 pubic bones, the distance between the pubic bone and the sternum, testicular weight and testicular volume in Kampung chickens (P&lt;0.05). It was concluded that the use of 0.15% L-isoleucine in feed gave the best results on ovary weight, distance between 2 pubic bones, distance between pubic bone and breast bone, testicular weight and testicular volume in pullet phase Native chickens.</p> Charles Venirius Lisnahan Maria Eriska Elu Agustinus Agung Dethan Alfred Nubatonis ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2024-02-12 2024-02-12 6 1 22 32 10.32938/jtast.v6i1.6102 Goat Performance of Peanut Goat with Supplementation of Feed Wafers Containing Lamtoro Taramba Leaves at Sumbawa Global Farm https://jurnal.unimor.ac.id/index.php/JTAST/article/view/4038 <p>Wafer feed is a form of compacted feed to reduce storage space. The ingredients used consist of lamtoro leaves, bran, molasses which are formulated according to the nutritional needs of the feed. This study aims to determine the best level of feed wafers made from lamtoro leaves given to kacang goats. The experimental design used a completely randomized design (CRD) with 3 treatments 4 replicates P1 = 10% feed containing lamtoro leaves, P2 = 12% feed containing lamtoro leaves, P3 = 14% feed containing lamtoro leaves. The results showed that the production performance of kacang goats had a significant effect (P&lt;0.05) on increasing ADG, feed consumption, feed efficiency for kacang goats. It was concluded that the level of giving lamtoro leaf wafers of 12% was the best level</p> Imam Munandar ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2024-02-21 2024-02-21 6 1 33 38 10.32938/jtast.v6i1.4038