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A. Rumambi, A.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Veterinary

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PENGARUH NAUNGAN DAN PEMUPUKAN NITROGEN TERHADAP KARAKTERISTIK MORFOLOGIS RUMPUT GAJAH DWARF (Pennisetum purpureum cv Mott) Rellam, Charel Rily; Anis, S.; Rumambi, A.; ., Rustandi
ZOOTEC Vol 37, No 1 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.994 KB) | DOI: 10.35792/zot.37.1.2017.14867

Abstract

THE EFFECT OF SHADING AND NITROGEN FERTILIZATION ON MORPHOLOGICAL CHARACTERISTICS OF DWARF ELEPHANT GRASS (Pennisetum purpureum cv. mott). This study was conducted to determine the responses of Dwarf Elephant grass  (P. purpureum cv. Mott.) fertilized with different nitrogen levels and at different shading areas. A Completely Randomized Design (CRD) in a Factorial arrangement with 2 factors of nitrogen levels and shading areas arranged as follows: factor A = fertilization levels of P1 = without fertilization (0%); P2 = 200 kg urea/ha; P3 = 400 kg urea/ha; and P4 = 800 kg urea/ha; whereas factor B = shasing areas of N1 = no shading area (0%), and N2 = 70% shading area. Variables measured were including leaf length, number of mature leaves, and plant height. Research results showed that plants needed about 200 kg urea/ha in order to achieve maximum leaf length in shaded area;   whereas  plants  within  no  shading area needed about 800 kg urea/ha to achieve maximum leaf length. To achieve maximum number of mature leaves in open area without shading plants needed about 800 kg urea/ha, and no need for nitrogen fertilization in shading area for plants to achieve such a maximum number of mature leaves. The highest plant height was achieved at the level of 400 kg urea/ha fertilization at open area (no shading), and there was no need of nitrogen fertilization for plants in shaded area in order to achieve their  maximum height. It can be concluded that shading positively contributed to the availability of nitrogen to be used by Dwarf Elephant grass (P. purpureum cv. Mott.). In open area without shading, plants need more nitrogen in the form of urea to produce leaf length, number of mature leaves, and plant height compared to shaded area.Keywords: Fertilization, Shading, Elephant Grass, Plant morphology.
KONSUMSI BAHAN KERING DAN KECERNAAN CALCIUM, PHOSPHOR PAKAN LOKAL DAN IMPOR PADA ANAK KUDA PACU INDONESIA Nangin, Gabriela; Tulung, Y.L.R.; Tuturoong, R.A.V.; Rumambi, A.
ZOOTEC Vol 40, No 2 (2020)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (163.019 KB) | DOI: 10.35792/zot.40.2.2020.30934

Abstract

DRY MATTER CONSUMPTION AND THE DIGESTIBILITY OF CALCIUM AND PHOSPHORUS IN BOTH LOCAL AND IMPORTED FEED FOR RACER FOAL OF INDONESIA. The purpose of this study to determine the ability of foal to the consume and digest both local feed and imported feed. This study was carried out in the Pinabetengan village, Tompaso district, for 30 days During these days preparation and data collection was carried out. The object of the study was the foal’s feed, either the amount or the type of it, and the foal’s feces. There were seventeen foal’s for the object of this study. Divided into two groups. First group contained nine foal’s consuming local feed and the other group contained eight foal’s consuming imported feed. The variable measured was the digestibility Ca and P. The study analyzed statistically using t-Test method: Two- Sample Assuming Unequal Variances. The result of this study using t-Test method indicated that the digestibility Ca of imported feed 1.22 0.82 was significantly higher p<0,05 than the local feed, as well as in the digestibility P of import feed 0,68 0,56. Based on the result of this study, it can be concluded that the digestibility of Ca and P for imported feed is better than the digestibility of Ca an P for local feed.Keywords: Racer foal, Local feed, Imported feed, Digestibility of Ca dan P
PEMANFAATAN BOKASHI FESES SAPI TERHADAP PRODUKTIVITAS RATUN SORGUM VARIETAS KAWALI Wantania, Delty Indhira; Rumambi, A.; Kaunang, W.B
ZOOTEC Vol 38, No 1 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (221.527 KB) | DOI: 10.35792/zot.38.1.2018.17517

Abstract

UTILIZATION OF BOKASHI FESES COW ON PRODUCTIVITY RATOON OF KAWALI SORGHUM VARIETY. This study aims to determine the effect of bokashi cow feces on the productivity of ratoon sorghum variety of kawali. This research was implemented in Wusa village at districts Talawaan. The design used was completely randomized design (CRD), which consists of 4 treatments and 5 replications to obtain 20 units of trial. The treatment consists of P0= without fertilization, P1= 4 kg of fertilization, P2= 8 kg of fertilization, P3= 12 kg of fertilization.  The measured variables are number of tillers, plant height, and panicle weight. Result of the analysis showed that treatment with 12 kg/plot provides highly significant effect (P <0.01) of the number of tillers, plant height, and panicle weight compared with other treatments, ie 8 and 4 kg/plot. The HSD test indicated that treatment number of tillers showed that between treatment P3, P0, P1, and P2 showed highly significant. In the treatments of advanced test HSD indicated also that plant height between P3, P0, P1, and P2 showed highly significant. In the treatment of panicle weight of advanced test of HSD showed that between treatment P3 and P0, treatment of P3 and P1 is very different, but the treatment of P3 and P2 showed no significant difference. Based on this research it can be concluded that cattle feces bokashi as the organic fertilizer up to 12 kg produced the best effect on number of tillers, plant height, and panicle weight. Keywords: Bokashi, productivity, ratoon, sorghum, kawali
PENGGUNAAN PAKAN LENGKAP BERBASIS TEBON JAGUNG TERHADAP KECERNAAN SERAT KASAR DAN BAHAN EKSTRAK TANPA NITROGEN SAPI FRIES HOLLAND Binol, Didin; Tuturoong, R.A.V.; Moningkey, S.A.E; Rumambi, A.
ZOOTEC Vol 40, No 2 (2020)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (505.567 KB) | DOI: 10.35792/zot.40.2.2020.28683

Abstract

THE USE OF A COMPLETE FEED BASED ON CORN FORAGE ON  THE DIGESTIBILITY OF CRUDE FIBER AND NITROGEN FREE EXTRACT OF THE FRIES HOLLAND DAIRY  COWS. This study aims to determine of the use of complete feed based on corn forage on the digestibility of crude fiber and nitrogen free-extract (NFE) of the Fries Holland (FH) dairy cows. This research used 14 dairy cows aged 7-8 years with a bodyweight of 300-400 kg. This study used an experimental method with t-test analysis (unequal diversity) consisting of 2 treatments with 7 replications. This study was arranged in two treatment groups according to t-test (assuming unequal varience). They consisted of Ra = 70% corn forage + 30% concentrate and Rb = 35% corn forage + 35% king grass + 30% concentrate. The variables observed were crude fiber consumption, NFE consumption, crude fiber digestibility and NFE digestibility. T Test analysis results showed that the consumption of crude fiber treatment of Ra (2.07 kg/head/day) was not significantly different (P>0.05) with Rb treatment (2.10 kg/head/day) while NFE consumption showed no significant difference (P>0.05) between Ra (3.36 kg/head/day) and Rb (3.46 kg/head/day). The digestibility of crude fiber showed a very significant difference (P<0.01) between Ra (70.31%) and Rb (78.15%) while NFE digestibility showed no significant difference (P>0.05) between Ra (87.97%) and Rb (90.28%). Based on the results of this study it can be concluded that feeding with concentrate of 30%, corn forage of 35% and king grass of 35% has better in increasing digestibility of crude fiber than just consisting of concentrate of 30%  and corn forage of 70% in dairy cows (FH).Keywords: digestibility, crude fiber, NFE, Fries Holland cows
Performans itik raja dan itik ratu fase starter yang dipelihara intensif di musim basah Tangkere, E.S.; Ponto, J.H.W.; Rumambi, A.; Rotinsulu, M.D.; Takaendengan, B.J.
ZOOTEC Vol. 44 No. 1 (2024)
Publisher : Universitas Sam Ratulangi

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Abstract

Penelitian ini bertujuan untuk mengetahui konsumsi ransum, pertambahan berat badan, konversi ransum, bobot badan awal dan bobot badan akhir itik jantan (Raja) dan itik betina (Ratu) fase starter yang dipelihara intensif di musim basah.  Untuk melihat performa / kinerja antara kelompok itik jantan (Raja) dan itik betina (Ratu), data penelitian terlebih dulu ditabulasi menggunakan Excell, kemudian dianalisis secara deskriptif dilanjutkan dengan pengujian T-student secara berpasangan menggunakan aplikasi SAS versi 10.  Hasil analisis memperlihatkan bahwa terdapat perbedaan sangat nyata (P<0,01) pada rataan konsumsi ransum, pertambahan berat badan, konversi ransum dan bobot badan akhir antara itik jantan dan itik betina fase starter di musim basah, namun tidak pada bobot badan awal;  untuk itik Raja, rata-rata konsumsi ransum 572,59 (SE 9,56) g/ekor/minggu, pertambahan berat badan 179,75 (SE 0,19) g/ekor/minggu,  konversi ransum 3,186 (SE 0,05), berat badan awal 42,60 g/ekor (SE 0,16) dan bobot badan akhir 1.480,60  (SE 1,50) g/ekor, sedangkan itik Ratu, rata-rata konsumsi ransum510,33 (SE 1,98) g/ekor/minggu, pertambahan berat badan 149.98 (SE 0,24) g/ekor/minggu, konversi ransum 3,40 (SE 0,01), bobot badan awal 42,20 (SE 0,13) g/ekor dan bobot badan akhir 1.241,60 (SE 3,45) g/ekor.  Temperatur kandang di siang hari selama penelitian berkisar 26-34oC dengan rata-rata 30,93oC dan temperature kandang yang tinggi tidak membuat itik-itik penelitian panting. Disimpulkan bahwa, performans itik Raja lebih tinggi dari itik Ratu pada fase starter, namun keduanya menunjukan efisiensi penggunaan ransum yang cukup baik dan itik Raja umur 8 minggu sudah memungkinkan dijadikan itik pedaging karena berat badan rata-rata hampir 1,5 kg/ekor.  Kata kunci: performans, itik Raja, itik Ratu, Fase starter, musim basah.
Pengujian daya kecambah benih sorgum varietas Numbu dengan metode priming menggunakan urin kelinci Rumambi, A.; Kaunang, C.L.; Kumajas, N.
ZOOTEC Vol. 44 No. 1 (2024)
Publisher : Universitas Sam Ratulangi

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Abstract

Penelitian ini bertujuan untuk mengetahui daya kecambah benih sorgum varietas Numbu dengan metode priming benih menggunakan urin kelinci. Penelitian menggunakan rancangan acak lengkap (RAL) yang terdiri dari 6     perlakuan dan 5 ulangan. Perlakuan perendaman dalam urin kelinci yaitu: 0 jam, 1 jam, 3 jam, 6 jam, 9 jam dan 12 jam. Analisis data menggunakan analisis varians untuk mengetahui perbedaan perlakuan dilanjutkan dengan uji Duncan Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa priming menggunakan urin kelinci memberikan pengaruh yang berbeda nyata (P<0,05) terhadap persentase perkecambahan (87,20%), rata-rata laju perkecambahan (39,75), indeks kecepatan  berkecambah (73,71), panjang kecambah (74,92 mm), panjang daun (195,40 mm). Hasil analisis menunjukkan priming dengan urin kelinci memberikan pengaruh berbeda nyata (P<0,05) terhadap persentase perkecambahan, rata-rata laju perkecambahan, indeks kecepatan berkecambah, panjang kecambah dan panjang daun.  Kesimpulan pada penelitian ini ialah waktu priming yang paling optimum memberikan pengaruh terhadap perkecambahan benih sorgum, dimana untuk persentase perkecambahan dan indeks kecepatan berkecambah yang tertinggi pada  perlakuan dengan waktu priming 3 jam, untuk rata-rata laju perkecambahan, panjang kecambah dan panjang daun yang tertinggi adalah perlakuan dengan waktu priming 6 jam. Kata kunci: priming, sorgum, perkecambahan, urin kelinci 
Co-Authors Ansiga, Rifa E. B. Tulung Binol, Didin D. A. Kaligis D. Rustandi I. MANSUR, I. Kaunang, C.L. Kaunang, W. Kaunang, W.B Kaunang, W.B. Kumajas, N. Marsel Efraim Bajang, Marsel Efraim Moningkey, S.A.E Moningkey, S.A.E. Nangin, Gabriela Ponto, J.H.W. Rahasia, C.A Rellam, Charel Rily Rotinsulu, M.D. Rumondor, Agung R. P. Rustandi ., Rustandi S. Anis, S. Silalahi, Maria J. Tacoh, Edward Takaendengan, B.J. Tampanguma, Jurgen E.K. Tangkere, E.S. Telleng, Malcky M. Tulung, Y.L.R. Tuturoong, R.A.V. W. B. Kaunang Wantania, Delty Indhira