Substitusi Konsentrat Starter pada Pakan Pedet Jantan Simmental Cross terhadap Respon Fisiologis dan Performa Produktivitas

Abstract

Penelitian ini bertujuan menganalisis pengaruh substitusi konsentrat starter terhadap respon fisiologis dan performa pedet jantan lepas sapih sapi Simmental Cross serta mengetahui persentase substitusi konsentrat starter yang paling baik untuk pedet jantan lepas sapih. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan 12 ekor pedet jantan lepas sapih Simmental Cross rataan bobot badan 119,62 ± 14,87 kg, yang dibagi menjadi 3 perlakuan dan 4 ulangan, yaitu P1 = 30% hijauan + 70% konsentrat kontrol, P2 = 30% hijauan + 35% konsentrat kontrol + 35% konsentrat starter, dan P3 = 30% hijauan + 17,5% konsentrat kontrol + 52,5% konsentrat starter. Hasil penelitian menunjukkan bahwa respon fisiologis pedet jantan lepas sapih masih berada pada kisaran normal. Substitusi konsentrat starter terbaik yaitu substitusi konsentrat starter sebanyak 35% karena sudah mampu meningkatkan konsumsi bahan kering, abu, protein kasar, lemak kasar, bahan ekstrak tanpa nitrogen, pertambahan bobot badan harian sebesar 40,9%, efisiensi pakan sebesar 21,3%, dan nilai ekonomis sebesar 45,2%.

This study aimed to analyze the effect of starter concentrate substitution on the physiological responses and performance of post-weaning male Simmental Cross calves and to determine the optimal percentage of starter concentrate substitution for these calves. This study employed a Randomized Block Design (RBD) with 12 post-weaning male Simmental Cross calves, averaging 119.62 ± 14.87 kg body weight, which were divided into 3 treatments and 4 replications, namely P1 = 30% forage + 70% control concentrate, P2 = 30% forage + 35% control concentrate + 35% starter concentrate, and P3 = 30% forage + 17.5% control concentrate + 52.5% starter concentrate. The results of this study indicated that the physiological responses of the weaned male calves remained within the normal range. The optimal starter concentrate substitution was found to be 35% as it significantly increased the intake of dry matter, ash, crude protein, crude fat, and nitrogen free-extract. This substitution also led to a substantial 40.9% improvement in daily body weight gain, a 21.3% increase in feed efficiency, and an economic value improvement of 45.2%.