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All Journal AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian Jurnal Ilmu Peternakan dan Veteriner Tropis (Journal of Tropical Animal and Veterinary Sciences)
Saragih, Evi W
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Materials Science & Nanotechnology Veterinary

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EFFECT OF FERTILIZER TYPE ON THE PRODUCTIVITY OF ELEPHANT GRASS (PENNISETUM PURPUREUM): A COMPARATIVE STUDY OF GOAT MANURE COMPOST, UREA, AND NPK ON INCEPTISOL SOIL Gea, Indah; Saragih, Evi W; Lekitoo, Marlyn N.; Djunaedi, Muhammad
Agrisaintifika: Jurnal Ilmu-Ilmu Pertanian Vol. 9 No. 2 (2025): Agrisaintifika
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/ags.v9i2.6691

Abstract

Forage productivity strongly depends on appropriate fertilization strategies, particularly in the cultivation of Pennisetum purpureum (elephant grass), a key tropical livestock feed. This study aimed to compare the effects of three fertilizer types—goat manure compost, urea, and NPK—on the productivity of elephant grass grown on inceptisol soil. A Completely Randomized Design (CRD) was employed with four treatments (no fertilizer, 2 tons/ha compost, 150 kg/ha urea, and 422 kg/ha NPK) and three replications. Observed parameters included fresh biomass yield, dry matter yield, and organic matter yield. The results indicated that NPK treatment significantly outperformed others in all parameters: fresh biomass (35.27 tons/ha), dry matter (5.88 tons/ha), and organic matter (5.35 tons/ha). Urea provided moderate results, while compost did not significantly differ from the control. These findings suggest that NPK delivers readily available macronutrients, which greatly enhance vegetative growth. Nevertheless, goat manure compost holds long-term potential to improve soil structure and fertility. The study recommends integrating organic and inorganic fertilization as a sustainable approach in tropical forage production systems. Keywords: Elephant grass, NPK fertilizer, urea, goat manure, forage productivity, organic matter, vegetative growth
Feeding management practices and forage utilization in smallholder goat farming in Oransbari District, Papua Barat Sellau, Ribka H.; Saragih, Evi W; Lekitoo, Marlyn N.
Jurnal Ilmu Peternakan dan Veteriner Tropis (Journal of Tropical Animal and Veterinary Science) Vol. 15 No. 4 (2025): Jurnal Ilmu Peternakan dan Veteriner Tropis (Journal of Tropical Animal and Ve
Publisher : Fakultas Peternakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46549/jipvet.v15i4.579

Abstract

Smallholder goat production in remote regions of eastern Indonesia still relies mainly on traditional feeding practices that may limit animal performance. This study aimed to describe feed management and forage utilization by smallholder goat farmers in Oransbari District, South Manokwari Regency, West Papua, Indonesia. A descriptive case-study design was applied with 28 purposively selected farmers. Primary data were collected through field observations of available forage, semi-structured interviews on feeding practices, daily weighing of fresh forage offered by growth class, and laboratory analysis of representative forage samples for crude protein, crude fiber, and minerals. Most farmers were of productive age but had low to medium levels of formal education, and feeding decisions were driven mainly by experience and seasonal forage availability rather than by explicit nutritional planning. Adult goats typically received 2–4% of live weight as fresh forage per day, while kids and growers received approximately 1–6%, with rations dominated by Napier grass supplemented with legumes, sweet potato vines, and agricultural by-products. Forage analysis confirmed that the inclusion of legumes substantially increased dietary protein, whereas practices such as wilting and systematic forage conservation were rarely applied. These findings highlight the need for targeted training on nutrition-based rationing, forage conservation, and strategic use of crop residues to improve feed efficiency, animal health, and the sustainability of smallholder goat systems in Oransbari.
Co-Authors Djunaedi, Muhammad Gea, Indah Lekitoo, Marlyn N Sellau, Ribka H.