ABSTRAKTestosteron merupakan salah satu hormon anabolik yang dapat memacu pertumbuhan massa otot dan tulang. Hormon testosteron mampu merangsang sekresi growth hormone yang berperan dalam pertumbuhan. Penelitian ini bertujuan untuk mempelajari pengaruh pemberian hormon testosteron dengan dosis bertingkat terhadap performa dan kecernaan pakan ayam broiler. Sebanyak 44 ekor ayam broiler berumur 15 hari dengan rata-rata bobot badan antara 650 ± 71 g dibagi menjadi 4 kelompok (K, T 1 , T 2 , dan T 3 ). K adalah kelompok kontrol; T 1 , T 2 , dan T 3 adalah kelompok yang diberi testosteron dosis 1, 2, dan 4 mg per ekor. Parameter yang diukur adalah bobot badan, konsumsi pakan, rasio konversi pakan, serta persentase kandungan nutrisi (di dalam pakan dan feses). Hasil penelitian menunjukkan pemberian testosteron dosis 1 dan 4 mg dapat meningkatkan pertambahan bobot badan harian secara signifikan (p<0,05) pada ayam broiler yang berumur antara 15 dan 18 hari. Testosteron dosis 2 mg meningkatkan bobot badan harian secara signifikan (p<0,05) pada ayam broiler yang berumur antara 21 dan 24 hari. Konsumsi pakan, rasio konversi pakan, dan kecernaan pakan ayam broiler yang diberi hormon testosteron tidak menunjukkan perbedaan dibanding dengan kontrol. Akan tetapi, pada kelompok yang diberi testosteron dosis 4 mg, nilai kecernaan lemak, protein, dan karbohidrat cenderung meningkat.Kata kunci: broiler, kecernaan, pertambahan bobot badan harian, proksimat, testosteron ABSTRACTTestosterone is one of the anabolic hormone that can trigger the growth of muscle mass and bone. Testosterone hormone can stimulate secretion of growth hormone that has a role in growth. The aim of this research was to observe the administration of multi-dose testosterone hormone on broiler chickens performance and feed digestibility. Fourty four broiler chickens 15 days old with average weight 650 ± 71 g were divided into 4 groups (K, T 1 , T 2 , and T 3 ). K was control group; T 1 , T 2 , and T 3 were groups which given testosterone dose 1, 2, and 4 mg each chicken. Parameters measured were body weight, feed consumption, feed conversion ratio (FCR), and nutritions percentage (in feed and feces). The results showed that testosterone dose 1 and 4 mg could increase the daily body weight gain significantly (p<0.05) in broiler chickens aged between 15 and 18 days old. Testosterone dose 2 mg could increase the daily body weight gain significantly (p<0.05) in broiler chickens aged between 21 and 24 days old. Feed consumption, FCR, and feed digestibility of chickens given testosterone did not show any difference compare with control. However, in group which given testosterone dose 4 mg, the digestibility values of fat, protein, and carbohydrates tended to increase.
Transportation may cause stress that affects livestock’s health. This research was conducted to observe the effect of transportation on the profiles of blood cortisol, triiodothyronine (T3), thyroxine (T4) and neutrophil/lymphocyte (N/L) ratio as stress indicators during 15 days post-transportation. Four females swamp buffaloes, 2-yr-old were used in this research. The animals were transported using an open truck, along 15 kilometers distance for 2 h. During acclimatization, the animals were fed grass twice a day and access to water ad libitum. Blood was collected at the time of arrival and everyday for 15 d post-transportation. Cortisol, T3 and T4 were analyzed using Radioimmunoassay (RIA) method. Blood smears were also prepared and stained with Giemsa for leukocyte differential counts. Results showed a significant relation (P<0.05) between transport and an increase in cortisol and T4 level on day-1 post-transportation compared to the normal levels. The level of T3 was also increased on day-3 post-transportation. Total leukocyte counts were 8.91-18.83×10³/μL. Neutrophil, eosinophil, monocyte, and lymphocyte counts were 4.87-10.41×10³/μL, 0.66-1.75×10³/μL, 0.11-0.58×10³/μL, and 2.98-6.21×10³/μL, respectively. N/L ratio was 1.23-3.49 with >1.5 in average throughout the period of the research. It is concluded that transportation causes stress and therefore changes metabolic process
Tugas jurnal tata kelola
Kesehatan merupakan hal penting untuk menjalankan aktivitas sehari-hari. Penurunan kesehatan dan daya tahan tubuh mengakibatkan timbul rasa nyeri serta mudah terserang penyakit. Pengobatan herbal digunakan sebagai pengobatan alternatif yang lebih aman dan terjangkau dibandingkan pengobatan nonherbal dari bahan-bahan kimia. Kemiri merupakan salah satu tanaman herbal yang memiliki banyak khasiat dan sering digunakan sebagai pengobatan oleh masyarakat. Penelitian ini bertujuan mempelajari efektivitas infusa kemiri sebagai analgesik dan stimulator stamina dalam berbagai dosis pada mencit. Uji efektivitas analgesik ditinjau menggunakan metode hot water immersion tail-flick test dan uji efektivitas stamina menggunakan metode natatory enhausen. Penelitian ini menggunakan 20 ekor mencit jantan yang dikelompokkan menjadi kelompok kontrol dan kelompok perlakuan yang diberi infusa kemiri dengan dosis 1, 2, dan 4 g/kg BB. Setiap kelompok terdiri atas 5 ekor. Data dianalisis menggunakan analysis of variance (ANOVA) kemudian dilanjutkan dengan uji Tukey. Hasil penelitian didapatkan dosis efektif pada uji analgesik adalah 4 g/kg BB dengan waktu respons nyeri ekor terlama yaitu 7.840±0.477 detik dan pada uji stamina adalah 1 g/kg BB yang ditunjukkan dengan durasi berenang terlama yaitu 145.00±20.65 detik. Kemiri memiliki efektivitas terhadap analgesik dan stimulator stamina.
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