Evaluation use of Calliandra calothyrsus substituted soybean meal supplement on feed nutrient intake and digestibility in the kacang goat

Twenty goats were given a basal feed of Pennisetum purpureum cv. Mott (odot grass) and supplemented with protein-based feed ingredients namely Calliandra calothyrsus and soybean meal (SBM). The proportion of C. calothyrsus feed substitution and SBM is T1 = odot grass (ad libitum) + 100 SBM; T2 = odot grass (ad libitum) + 25 C. calothyrsus + 75 SBM; T3 = odot grass (ad libitum) + 50 C. calothyrsus + 50 SBM; T4 = odot grass (ad libitum) + 75 C. calothyrsus + 25 SBM; and T5 = odot grass (ad libitum) + 100 C. calothyrsus. The amount of feed supplementation given is based on daily protein requirements (gram/DM) per day according to animal body weight. The feed given contained iso protein (CP) and iso energy (TDN) to determine the effect of substitution of SBM with C. calothyrsus. The parameters observed were intake and nutrient digestibility of feed. The results of the study were analyzed its variance using a one-way analysis of variance; then if the results show significant differences, it will be analyzed further with Duncan’s new multiple range test. The results showed that substitution of C. calothyrsus did not have a significant effect (P> 0.05) on nutrient intake (g/kg BB0.75/day), except for the intake of ETN, which shows a significant effect (P< 0.05). C. calothyrsus substitution had a significant effect (P<0.05) on feed nutrient digestibility, with the highest digestibility being T2 treatment (25 C. calothyrsus substitution). © 2020 Trans Tech Publications Ltd, Switzerland.