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nn Damry, Damry
AGROTEKBIS Vol 1, No 2 (2013)
Publisher : AGROTEKBIS

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444 Damry, Damry
AKSIOMA Jurnal Pendidikan Matematika Vol 1, No 01 (2012)
Publisher : AKSIOMA Jurnal Pendidikan Matematika

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444
Strategies to Enhance Growth of Weaned Bali (Bos sondaicus) Calves of Small-Holders in Donggala District, Central Sulawesi Damry, Damry; Marsetyo, Marsetyo; Quigley, SP; Poppi, DP
ANIMAL PRODUCTION Vol 10, No 3 (2008): September
Publisher : Universitas Jenderal Soedirman, Faculty of Animal Science, Purwokerto-Indonesia

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Penelitian ini bertujuan untuk mengevaluasi sebuah strategi pemberian suplemen pakan untuk meningkatkan pertumbuhan sapi Bali yang disapih pada umur 6-12 bulan di wilayah Kabupaten Donggala, Sulawesi Tengah dan menganalisis kelayakan ekonomi serta sikap petani terhadap strategi penyapihan dini dan pemberian suplemen tersebut. Penelitian dilakukan di dua desa, yakni Desa Lembah Mukti (kontrol) dan Desa Malonas (desa perlakuan). Jumlah anak sapi Bali yang digunakan di masing-masing desa adalah 20 ekor, berumur sekitar 6 bulan dengan berat badan awal 83,1 ± 2,6 kg (Lembah Mukti) dan 85,4 ± 2,6 kg (Malonas).  Ternak di Malonas yang sebelumnya belum disapih, mulai dipisahkan dari induknya minimal 3 minggu sebelum penelitian.  Ternak tersebut diberi perlakuan suplemen campuran dedak padi:bungkil kelapa (50:50) setiap pagi oleh peternak sebanyak 1% dari bobot badan (berdasar bahan kering), sebelum ternak tersebut dilepaskan untuk merumput seperti biasa.  Bobot badan ternak penelitian di kedua desa ditimbang sekali sebulan selama 6 bulan, dan perbedaan pertambahan bobot badan ternak antara kedua desa ditentukan dengan uji t. Hasil penelitian menunjukkan bahwa ternak yang mendapatkan pakan suplemen mempunyai tingkat pertumbuhan yang lebih tinggi (P<0,5) dibandingkan dengan ternak kontrol yang tidak diberi suplemen (0,424 vs 0,286 kg/h). Tidak ada perbedaan nyata dalam pertumbuhan antara anak sapi Bali jantan dan betina pada umur 6-12 bulan. Pemberian pakan suplemen memberikan tambahan pendapatan kepada peternak sebesar Rp 2.800/ekor/h. Sebanyak 73% dari petani yang diwawancarai berkeinginan untuk menerapkan strategi penyapihan dini dan pemberian suplemen tersebut. Dapat disimpulkan bahwa pertumbuhan anak sapi Bali di wilayah pedesaan dapat ditingkatkan melalui penyapihan dini pada umur 6 bulan yang disertai dengan pemberian suplemen campuran dedak padi:bungki kelapa. (Animal Production 10(3): 135-139 (2008) Key  Words: Bali calves, growth, early weaning, rice bran, copra meal, Donggala
Nutritional Qualities of Cocoa Pod Husk Treated with Bioconversion and or Provision of Nitrogen Sources in the Rumen Syahrir Syahrir; Hartutik Hartutik; Kusmartono Kusmartono; Damry Damry
Media Peternakan Vol. 40 No. 3 (2017): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.642 KB) | DOI: 10.5398/medpet.2017.40.3.165

Abstract

The objective of this study was to investigate the effects of bioconversion using Phanerochaete chrysosporium and Pleurotus ostreatus and or inclusion of Moringa oleifera leaves and urea in the rumen on cocoa pod husk digestibility and fermentation in the rumen. There were 4 treatments tested: (1) 100% untreated cocoa pod husk (UCPH), (2) 55% UCPH + 43.7% M. oleifera + 1.30% urea (UCPHMU), (3) 100% bioconverted cocoa pod husk (BCPH), and (4) 55% BCPH + 44.5 M. oleifera + 0.5% urea (BCPHMU). Each of the treatments was replicated three times. Variables observed were dry matter and organic matter digestibilities and degradabilities, rumen VFA and ammonia concentrations, gas production, and calculated microbial biomass yields. Results indicated that the treatment increased dry matter (P<0.001) and organic matter (P<0.01) digestibility, with the highest for the BCPHMU and the lowest for the UCPH. The treatments also increased dry matter and organic matter degradability in the rumen (P<0.001), with the highest for the BCPHMU, followed by the UCPHMU, and then by the BCPH and the lowest was UCPH. The treatment affected rumen ammonia concentration (P=0.01), the highest value was found for the BCPHMU followed with UCPHMU and BCPH. Microbial biomass synthesis was affected (P<0.001) by the treatment and it was always higher when nitrogen was provided (UCPHMU and BCPHMU). Total VFA concentration or total gas production was higher for BCPHMU compared to other treatments. It can be concluded that nutritional quality of cocoa pod husk can be improved by either bioconversion with P. chrysosporium and P. ostreatus or inclusion of M. oleifera and urea in the rumen, but the best improvement can be obtained by the combination of bioconversion and provision of the nitrogen sources in the rumen.
Fermented Coconut Dregs Quality and Their Effects on the Performance of Broiler Chickens Hafsah Hafsah; H. B. Damry; U. Hatta; B. Sundu
Tropical Animal Science Journal Vol. 43 No. 3 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2020.43.3.219

Abstract

This study was conducted to determine the effects of the fermentation duration of coconut dregs (CD) by Saccharomyces cerevisiae and the addition of ammonium sulfate on the growth performance, feed digestibility, carcass, and digestive organ developments. A finely ground CD was autoclaved at 20 psi for 20 minutes and added distilled water to meet 80% moisture content. The autoclaved substrate was added with different concentrations of ammonium sulfate and fermented with Saccharomyces cerevisiae to produce Saccharomyces cerevisiae-fermented CD. A total of 192 day-old-unsexed Cobb broiler chicks were used and kept for 6 weeks. The birds were fed experimental diets ad-libitum. The experimental diets were produced by two durations of fermentation (5 days and 7 days) and three levels of ammonium sulfate (0%, 0.2%, and 0.4%) in 4 replicates. The experimental diets were offered ad-libitum and water were available at all times. Fermentation decreased lipid and crude fiber content of CD and the addition of ammonium sulfate increased protein content and amino acid concentration of CD. The bodyweight gain of birds increased when the CD was fermented for 5 days and with the addition of 0.2% ammonium sulfate. Dry matter digestibility and protein digestibility were improved when CD was added with 0.2% ammonium sulfate. In conclusion, fermenting CD for 5 days increased body weight gain and the addition of 0.2% ammonium sulfate improved the feeding value of the diet and growth of birds.
PRODUKSI DAN KANDUNGAN NUTRIEN HIJAUAN PADANG PENGGEMBALAAN ALAM DI KECAMATAN LORE UTARA, KABUPATEN POSO Damry Damry
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 16, No 4 (2009)
Publisher : Universitas Tadulako

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A research was performed to study production and nutrient composition of forage produced from a natural grassland in Lore Utara Subdistrict, Poso District. Forage samples were collected from two villages (Winowanga and Alitupu) with a destructive sampling method using a pair of 1 m2 sized quadrant. These samples were then taken to University of Tadulako for dry matter and main nutrient analysis at the Animal Nutrition Laboratory, Animal Science Department. On the basis of dry matter contents, the available dry matter production and carrying capacity were calculated with some assumptions, and all data were descriptically analysed. Results showed that the forage consisted mainly of grass with an average available dry matter production of 941 kg/ha. Average carrying capacity was 0.63 AU/ha/year, calculated assuming 1 AU is equivalent to a 500 kg cattle. Average nutrient contents (g per 100 g) were 6.47 (crude protein), 2.23 (crude fat), 42.71 (crude fibre), 9.98 (ash), and 40.29 (nitrogen free extracts).
EFFECTS OF DEFAUNATION AND METHIONINE IN THE PRESENCE OF PROTOZOA ON THE FLOW OF MICROBIAL LONG CHAIN FATTY ACIDS FROM THE RUMEN OF SHEEP Damry Damry
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 16, No 2 (2009)
Publisher : Universitas Tadulako

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This study was designed to investigate the effects of the presence or absence of protozoa in the rumen, and of methionine supplement when protozoa are present in the rumen, on microbial production of LCFA. The study used 12 first-cross Merino x Border Leicester wethers (2 years old) with body weights of between 35 and 44 kg, each was equipped with both rumen and abomasum cannulas. All sheep were offered a mix of 400 g of oaten chaff + 400 g of lucerne chaff per day which was delivered in 24 equal portions at hourly intervals via an overhead automatic-feeding machine. Digesta flow was measured using chromium ethylenediamine tetra-acetic acid (CrEDTA) complex and dietary acid-insoluble ash (AIA) as the liquid- and particle-digesta marker, respectively. All sheep were firstly defaunation using detergent alkanate 3SL3, and 8 of them were refaunated with a fresh rumen liquid obtained from a normal donor animal. Thus, there were 8 animals in the refaunated group at the commencement of study, 4 of which were intended to receive methionine supplement. However, comparison of refaunated sheep with or without methionine supplement is based on only 3 sheep per cell; 2 animals (1 of the methionine-supplemented and 1 of the methionine-unsupplemented group) were suitable to be included in the analysis. Comparison of defaunated and refaunated sheep was based on 4 sheep per cell. The study showed that the daily flow of dry matter through the abomasum was higher (P<0.05) in refaunated animals, despite the lower liquid outflow rate in these sheep. The concentration of LCFA in total digesta dry matter was not affected (P>0.05) by the presence or absence of protozoa in the rumen. However, the presence of protozoa increased concentration of LCFA in particle-digesta dry matter (P=0.081), the ruminal production (P<0.05) and daily flow of LCFA (0.01). Methionine supplementation did not alter (P 0.05) the concentration of LCFA in digesta, but significantly reduced (P<0.05) the flow of LCFA to abomasum.