Pengaruh pengukusan dedak padi dan suplementasi methionin hidroxy analog (mha) dalam ransum terhadap performan domba lokal jantan

Oleh :
Puput Ajik Karji to - H0505053 - Fak. Pertanian

RINGKASAN Usaha peternakan domba dihadapkan dengan mahalnya biaya pengadaan konsent rat . Bahan pakan alternat if dengan memanfaatkan limbah pertanian yaitu dedak padi. Pengolahan pakan untuk mengopt imalkan dedak padi salah satunya dengan pengukusan dan untuk meningkatkan kandungan nutrient ransum maka disuplementasikan MHA. Pengukusan dedak padi dan suplementasi MHA dalam ransum diharapkan dapat saling melengkapi kandungan nutriennya dan dapat menggant ikan konsent rat sebagai bahan pakan sumber energi. Pengukusan dan suplementasi MHA diharapkan meningkatkan keuntungan dalam pemeliharaan ternak karena dapat menekan biaya pengadaan konsentrat sebagai pakan penguat. Penelitian ini bertujuan untuk mengetahui pengaruh pengukusan dedak padi dan suplementasi MHA dalam ransum terhadap performan domba lokal jantan. Penelitian dilaksanakan selama 12 minggu mulai tanggal 11 Agustus – 2 November 2009, di mini farm Jurusan Peternakan, Fakultas Pertanian, Universitas Sebelas Maret Surakarta berlokasi di Desa Jat ikuwung, Kecamatan Gondangrejo, Kabupaten Karanganyar. Penelitian dilakukan secara eksperimental menggunakan Rancangan Acak Lengkap (RAL) pola searah. Materi yang digunakan adalah domba lokal jantan sebanyak 12 ekor dengan bobot badan rata-rata 10,32 ± 1,02 kg dibagi dalam t iga macam perlakuan dan empat ulangan, setiap ulangan terdiri dari satu ekor domba. Ransum yang diberikan berupa hijauan rumput raja, dedak padi, dedak padi kukus, dan dedak padi kukus ditambah MHA. Perlakuan yang diberikan masing-masing adalah P0 (rumput Raja 60% + dedak padi 40%), P1 (rumput Raja 60% + dedak padi kukus 40%), P2 (rumput Raja 60% + dedak padi kukus 40% + MHA 1%). Parameter yang diamat i meliputi konsumsi pakan, konsumsi protein, pertambahan bobot badan harian (PBBH), konversi pakan, efisiensi protein ransum dan feed cost per gain. Hasil penelitian menunjukkan bahwa rerata dari ketiga macam perlakuan yaitu P0, P1, dan P2 berturut-turut untuk konsumsi pakan 999,46, 936,84, dan 935,58 gram/ekor/hari, konsumsi protein 171,57; 160,76; dan 160,55 gram/ekor/hari, pertambahan bobot badan harian 51,530; 58,163; dan 62,625 gram/ekor/hari, konversi pakan 20,288, 16,934, dan 16,623, efisiensi protein ransum 0,299; 0,365; dan 0,391, dan feed cost per gain Rp. 21428,78/kg; Rp. 18013,51/kg; dan Rp. 18068,88/kg. .Hasil analisis variansi untuk konsumsi, konsumsi protein, konversi pakan dan efisiensi protein ransum dan analisis kovariansi untuk pertambahan bobot badan harian dari ket iga macam perlakuan masing-masing adalah berbeda t idak nyata (P>0,05). Pengukusan dedak padi dan suplementasi MHA t idak meningkatkan performan domba lokal jantan (konsumsi pakan, konsumsi protein, pertambahan berat harian, konversi pakan, efisiensi protein ransum). Feed cost per gain yang paling murah pada perlakuan ransum yang dikukus. Kata kunci: domba lokal jantan, dedak padi, performan, MHA. SUMMARY Farm businesses sheep are faced with the high cost of procurement of concent rates. Alternat ive feed material by ut ilizing agricultural waste is rice bran. proseccing feed rice bran to opt imize one with steaming and to increase the nutrient content of the rations supplemented with MHA. Steaming rice bran and MHA supplementation in the rat ion is expected to complement each other and nutrient content can replace the feed concentrate as an energy source material. Steaming and MHA supplementation is expected to increase profits in raising cat t le because it can reduce the cost of procurement of feed concent rate as reinforcement . This study aims to find out effect steaming rice bran and suplementat ion MHA in rat ions for male performance of local male sheep. The study was conducted over 12 weeks start ing on 11 August to 2 November 2009, in Department of Animal Science of Agriculture Faculty of Sebelas Maret University located in Jatikuwung, Gondangrejo, Karanganyar. Research carried out experimentally using the Completly Random Design (CRD) one way classification. The material used is a local male sheep as many as 12 males weighing an average of 10.32 ± 1.02 kg were divided into three kinds of treatments and four replications, every replication use one local male sheep. Rat ions are given in the form of king grass, rice bran, rice bran steamed, rice bran steamed and plus MHA. The treatment given each of them is P0 (60% king grass + 40% rice bran), P1 (60% king grass + rice bran steamed 40%, P2 (60% king grass + rice bran steamed 40% + 1% MHA, . The parameters observed included feed consumpt ion, protein consumpt ion, Average Daily Gain (ADG), feed conversion, protein efficiency rat io and feed cost per gain. The results showed that the average of the three kinds of treatment that is P0, P1, and P2, respect ively for the consumpt ion of 999.46, 936.84, and 935.58 grams / head / day, consumpt ion of protein, 171.57; 160.76; and 160.55 grams / head / day, average daily gain 51.530; 58.163 and 62.625 grams / head / day, feed conversion 20.288, 16.934, and 16.623, protein efficiency ration 0.299; 0.365 and 0.391, and feed cost per gain Rp. 21428,78/kg; Rp. 18013,51/kg; dan Rp. 18068,88/kg. The results of analysis of variance for consumpt ion, protein consumpt ion, feed conversion and protein efficiency rat ion and analysis covariance to average daily gain of the three types of treatment, respect ively, are different is not significant (P> 0,05). Steamed rice bran and MHA supplementation did not improve on performance local male sheep (feed consumpt ion, protein consumpt ion, average daily gain , feed conversion, protein efficiency rat ion). Feed cost per gain the most efficient in the t reatment rat ion steamed. Keywords: local male sheep, rice bran, performance, MHA.