Tarigan, Andi
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Evaluation of four pasture legumes species as forages and cover crops in oil palm plantation Hutasoit, Rijanto; Sirait, Juniar; Tarigan, Andi; Ratih, D. H.
Indonesian Journal of Animal and Veterinary Sciences Vol 22, No 3 (2017): SEPTEMBER 2017
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14334/jitv.v22i3.1801

Abstract

Pasture legumes is a very high quality of forage. The limited land is the problem of its development. Integration with oil palm plantations is one of the potentials for its development. This study was aimed to investigate the productivity of several legumes (Arachis glabrata, Stylosanthes guianensis, Clitoria ternatea, and Chamaecrista rotundifolia) as forages and cover crop. The potential tests were conducted in oil palm area of 4608 m2, in a complete block design with four treatments (legume species) and three replications. Parameters observed were: Legum production, leaf/stem ratio, chemical composition of legume, concentration of N, P in the soil, microbes in the soil, leguminous digestibility and palm fruit production. Results showed that the highest legume production (DM) was (P<0.05) in the species of Clitoria ternatea (16.15 tons ha-1year-1), the highest leaf/stem ratio (P<0.05) was in the Arachis glabrata (2.09). The chemical composition (DM) did not differ (P>0.05) ranged from 33.75 to 35.75%, the organic matter (OM) varied greatly (P<0.05) the highets was in Clitoria ternatea. The highest Crude protein (P<0.05) was in Clitoria ternatea 17.84%. NDF concentrations did not differ (P>0.05). The lowest ADF concentration (P<0.05) was in Chamaecrista rotundifolia. The concentration of N in the soil indicated that early year of activity was similar (average 0.10%), at the end of activity increased (P<0.05) in treatment Stylosanthes guianensis (0.16%). The highest population of N-fixation bacteria of 1.76x109 and phosphate solvent of 9.8x105 were in the treatment of Clitoria ternatea. Production of fresh fruit bunches of the palm was relatively similar (P>0.05) ranged from 16.52-19.21 tons ha-1year-1. It is concluded that Clitoria ternatea is the best species of legume tested as forage and cover crop in oil palm plantations.
Growth and feed utilization of Boer x Kacang crossbred goats offered total mixed rations of different protein and energy levels Ginting, Simon P.; Simanihuruk, Kiston; Antonius, Antonius; Tarigan, Andi
Indonesian Journal of Animal and Veterinary Sciences Vol 22, No 4 (2017): DECEMBER 2017
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14334/jitv.v22i4.1782

Abstract

The aim of this study was to evaluate the growth of and feed utilization by Boer x Kacang crosses goats fed on total mixed ration differing in protein and energy levels. Four total mixed rations combination were formulated to contain 16 and 18% crude protein and 2650 and 2850 Kcal ME/ kg DM (dried matter) energy density. Twenty-eight male Boer x Kacang crosses goats (14.5 ± 1.14 kg) and of age ranging from 4 to 5 months were randomly allocated to one of these four TMRs (total mixed rations) (7 animals/TMR). The effects of dietary treatment were assessed using the general linear model and significance of the diet effects was detected using Duncan’s multiple range test. Dry matter intake increased as metabolizable energy density of diet increased from 2650 to 2850 Kcal/kg DM, but it is not affected by increasing crude protein level from 16 to 18%. The average daily gains were not improved (P>0.05) as the crude protein levels and metabolizable energy density of diet increased. Crude protein levels and ME density did not affect (P>0.05) the DM, OM and energy digestibility, but NDF digestibility was affected by the ME density of diets (P<0.05). Daily N intakes were greater (P<0.0%) in goats received diets higher in the crude protein and metabolizable energy levels. At this high rate of feed intake this type of goats are able to gain optimally when offered feed with crude protein level of 16% and metabolizable energy density of 2850 Kcal/kg DM.