Crude Nutrient and Mineral Composition of Asystasia Gangetica (L)Derived from Different Growing Areas

Khalil, Khalil and Suyitman, Suyitman and Montesqrit, Montesqrit (2018) Crude Nutrient and Mineral Composition of Asystasia Gangetica (L)Derived from Different Growing Areas. In: The 4th International Seminar on Animal Industry, August 28-30, 2018, Bogor.

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Abstract

Asystasia gangetica as a predominant plant species for feeding goat grows widely in various lands in Payakumbuh region. The present study was aimed to determine crude nutrient and mineral composition of the wild plant derived from five different growing areas, i.e. banana and cacao plantations, road sides, idle lands and river banks. The sampling sites were distributed in 3 different subdistricts. Fresh samples which were collected by using a plate meter of 0.5 x 0.5 m2 were weiighed, chopped, dried and then ground in meal form prior to analysis for dry matter (DM), crude ash, crude protein (CP), crude fiber (CF), acid detergent fiber (ADF), cellulose, and minerals of Ca, P, Mg, Cu, Zn, Mn. Data were subjected to analysis of variance (ANOVA) in completely randomixed design of 5x3 consisting of 5 growing areas and 3 subdistricts as replications. Results showed that A. gangetica contained relatively low DM of 9.3-11.9%. Crude ash ranged 16.8-20.9%, CP: 15.5-25.0%, CF: 23.2-28.6 %, ADF: 42.5-46.4%, and cellulose :26.5-29.7%. Macro mineral Ca ranged 18.8-20.5 g, P:11.2-17.4, Mg: 7.5-8.5 g/kg DM. Trace element of Cu ranged 22.0- 29.4 mg, Zn:17.4-22.6 mg, Mn: 36.2-41.4 mg/kg DM. A. gangetica grown in the banana plantation areas showed the highest crude protein content, while the highestfiber content was found by A. gangetica collected from the cocoa plantation. A. gangetica grown in river banks tended to have the higher mineral content of Ca, P, Mg, and Cu. Keywords: Asystasia gangetica L, predominant species, crude nutrient, mineral composition

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