Komparasi Kecernaan Ransum dengan Penambahan Hay dan Silase Daun Rami pada Ternak Kambing Jawarandu secara In Vivo
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The study was aimed to compare in vivo digestibility of ramie leaves in the form of hay and silage in jawarandu goat ration. The experiment was done using ewe jawarandu goats weighted 27 ± 4,68 kg from September to December 2010 at the Field Laboratory of Dairy Cattle Nutrition, Faculty of Animal Science, Bogor Agricultural University. Randomized block design was used in this experiment. Three types of ration (R1= Control ration consisted of 50% grass + 50% concentrate; R2 consisted of 50% grass + 40% concentrate + 10% ramie leaf silage, and R3 consisted of 50% grass + 40 + 10% concentrate % hay ramie leaf) were used as treatments. Each treatment was repeated thrice. Ration and nutrients offered, ration and nutrients left over, total faecal and its composition were measured for consumptions and digestibilites calculations. The data obtained were analyzed using analysis of variance (ANOVA) and continued with Duncan's multiple range tests. The results showed that the digestibility of crude protein (DCP) in R1 (68.6%) was higher than R3 (54.90%) and R2 (40.51%) but there were no significant different effect of R1, R2, and R3 on digestibilities of dry matter (DMD), extract ether (DEE), crude fibre (DCF), and nitrogen free extract (DNFE) of the rations. Substitution of 10% concentrate by ramie either in hay or silage forms did not affect digestibility of ration and nutritions except protein digestibility. Subtitution of concentrat by ramie leave in form of hay produced a better digestibility compare to silage. The addition of 10% ramie leaf shaped silage or hay in the ration concentrate jawarandu goats could be done and could produce a good ration digestibility, especially digestibility of ether extract. However, the addition of 10% ramie leaf shaped silage or hay has not been able to replace the protein source of feed materials making up the concentrate control ration (soybean meal and coconut meal) in terms of crude protein digestibility. The provision of ramie in the form of hay produced higher digestibility DCP than ramie in the form of silage.