Tri Yuwanta
Fakultas Peternakan, Universitas Gadjah Mada, Yogyakarta

Published : 57 Documents
Articles

KARAKTERISTIK HABITAT MIKRO SEBAGAI DASAR POLA PENETASAN TELUR MALEO DI TAMAN NASIONAL LORE LINDU SULAWESI TENGAH Hafsah, Hafsah; Yuwanta, Tri; Kustono, Kustono; Djuwantoko, Djuwantoko
AGROLAND Vol 15, No 3 (2008)
Publisher : AGROLAND

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The Objective of the study was to identify microhabitat characteristics in natural nesting ground as a basic form of egg hatching of maleo birds for ex-situ habitat in Lore Lindu National Park. Survey methods and experimental design were applied in this study using Saluki Nesting Ground as a habitat model. In a natural habitat, variables observed were microclimate condition (temperature and humidity, depth and diameter of holes) while in an artificial habitat where four different forms of eggs hatching (in-situ, ex-situ, incubator by means of media rack and sand) were applied temperature, humidity, hatching quality, incubation time, hatching weigh, and mortality were determined. Data analysis applied was descriptive analysis and multivariate test using SPSS computer program. Results of the study showed that in the natural nesting ground the temperature ranged from 30 to 35 oC with an average temperature of 33.03oC, and the humidity from 60.20 to 71.10% with an average humidity of 68.55%. The hole diameter ranged from 28-63 cm with an average hole diameter of 41.64 cm and the hole depth from 51-87cm with an average hole depth of 63.29 cm. The application of hatching method was resulted in the in-situ temperature and humidity of 32.90 oC and 68.41%, respectively, and the ex-situ of 31.68 oC and 67.52%, respectively, rack incubator of 33.99 oC and 70.06%, respectively, and sand incubator of 33.78 oC and 71.02%, respectively. The longest incubation time was found in the ex-situ semi natural hatchery which was 78.40 days, followed by the in-situ habitat 63.48 days, rack incubator 59.40 days, and sand incubator 59.33 days. The best hatching quality was found in the rack incubator, but the mortality rate was highest. The application of incubator for egg hatching of maleo birds could reduce the incubation time length and increase the hatching quality
Penentuan Daya Tetas dengan Menggunakan Metode Gravitasi Spesifik pada Tingkat Berat Inisial Ayam Kampung yang Berbeda Wibowo, Ali; Yuwanta, Tri; Sidadolog, Jafendi H. P.
Buletin Peternakan Vol 18, No 4 (1994): Buletin Peternakan Vol. 18 (4) Desember 1994
Publisher : Fakultas Peternakan UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | http://journal.ugm.ac.id/index.php/buletinpeternakan/article/view/1719

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Jumlah Sel Sperma Tersimpan di Saluran Reproduksi Ayam pada Strain, Umur dan Dosis Inseminasi yang Berbeda Yuwanta, Tri; Brillard, J. P.
Buletin Peternakan Vol 21, No 1 (1997): Buletin Peternakan Vol. 21 (1) April 1997
Publisher : Fakultas Peternakan UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | http://journal.ugm.ac.id/index.php/buletinpeternakan/article/view/1669

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Polimorfisme Protein Darah pada Itik Tegal Yuwanta, Tri; Sidadolog, Jafendi P. H.; Keman, Soenaryo
Buletin Peternakan Vol 29, No 4 (2005): Buletin Peternakan Vol. 29 (4) November 2005
Publisher : Fakultas Peternakan UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | http://journal.ugm.ac.id/index.php/buletinpeternakan/article/view/1187

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Pengaruh Kombinasi Sagu Kukus (Metroxylon Spp) dan Tepung Keong Mas (Pomacea Spp) sebagai Pengganti Jagung Kuning terhadap Penampilan Itik Jantan Alabio, Mojosari dan Hasil Persilangannya (The Effect of Steaming Sago (Metroxylon Spp) and Golden Snail Meal Subhan, Ahmad; Yuwanta, Tri; Sidadolog, Jafendi Hasoloan Purba
Buletin Peternakan Vol 34, No 1 (2010): Buletin Peternakan Vol. 34 (1) Februari 2010
Publisher : Fakultas Peternakan UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | http://journal.ugm.ac.id/index.php/buletinpeternakan/article/view/104

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The aim of the experiment was to find out the effects of steaming sago (Metroxylon Spp) and golden snail meal (Pomacea Spp) combination for yellow corn substitution, on the performance of male Alabio, Mojosari, and their cross(MA). One hundred and ninety two young male ducks from the three breeds of 7 day old were assigned in 48 units of pens (4 ducks/pen). The experimental design was Completely Randomized Design with factorial (3x4) the first factorwas duck breeds (a) consisted of three duck breeds, Alabio, Mojosari, and Raja ducks, and the second factor was the type of ration of: R0 (control/100% basal ration), R1 (basal ration + 13% steaming sago and 2% golden snail flour), R2(basal ration + 26% steaming sago and 4% golden snail flour) and R3 (basal ration + 39% steaming sago and 6% golden snail flour). All treatments were repeated four times. The observed variables were the performance of ducks(body weight, body weight gain, ration consumption, and feed conversion ratio). The results indicated that breed had significant effects (P<0.05) on body weight, body weight gain, and ration conversion. Meanwhile, types of feed hadsignificant effects (P<0.05) on feed consumption, body weight gain, and final body weight. It was concluded that the combination of steaming sago and golden snail meal up to 45% of the ration could replace the need for yellow corn assource of energy without affecting the performance of male ducks of 1–8 weeks old. Cross male ducks were better than male Alabio and Mojosari ducks because they were more efficient in converting ration in to meat which resulting inhigher body weight gain.(Key words: Steaming sago, Golden snail flour, Male ducks, Performance)
Kajian Finansial dan Ekonomi Pembuatan Tepung Ikan di Kabupaten Brebes Santosa, Krishna Agung; Yuwanta, Tri; Nurtini, Sudi
Buletin Peternakan Vol 25, No 2 (2001): Buletin Peternakan Vol. 25 (2) Mei 2001
Publisher : Fakultas Peternakan UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | http://journal.ugm.ac.id/index.php/buletinpeternakan/article/view/1433

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Pengaruh Penggunaan Kerabang Telur dalam Ransum terhadap Kadar Kalsium di Mukosa Usus Halus, Plasma Darah, Tulang Tibia dan Ekskreta Ayam Petelur Ratriyanto, Adi; Yuwanta, Tri; Wibowo, Ali
Buletin Peternakan Vol 25, No 1 (2001): Buletin Peternakan Vol. 25 (1) Februari 2001
Publisher : Fakultas Peternakan UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | http://journal.ugm.ac.id/index.php/buletinpeternakan/article/view/1424

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Penampilan dan Nitrogen Ekskreta Serta Kolesterol Darah pada Ayam Broiler yang Mendapatkan Pakan All Grain dan Non All Grain pada Level Protein yang Berbeda Rohaeni, Eni Siti; Yuwanta, Tri; (Zuprizal), Zuprizal
Buletin Peternakan Vol 27, No 4 (2003): Buletin Peternakan Vol. 27 (4) November 2003
Publisher : Fakultas Peternakan UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | http://journal.ugm.ac.id/index.php/buletinpeternakan/article/view/1480

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MODIFIKASI PENETASAN TELUR BURUNG MALEO GUNUNG (Aepypodius arfakianus) UNTUK MENINGKATKAN DAYA TETAS Manik, Hotlan; Yuwanta, Tri; (Kustono), Kustono
Buletin Peternakan Vol 35, No 1 (2011): Buletin Peternakan Vol. 35 (1) Februari 2011
Publisher : Fakultas Peternakan UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | http://journal.ugm.ac.id/index.php/buletinpeternakan/article/view/587

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his research aims to determine the physical characteristics and quality of eggs of mountain Maleo bird (Aepypodius arfakianus) in Papua and to determine hatching rate by using some modified hatching method to improvethe egg’s hatchability. This research used observation method to analyze variable egg hatching, temperature and humidity. There were three experiments of hatching method, which were semi-natural hatching outside of the habitat(ex-situ), hatching by using soil and serasah as the media, and hatching by using electric shelves as the media. Observation data of natural hatching showed that the temperature inside of the nest was about 30-35oC with humidityof 70-90%. The variables measured were embryo durability or fertility, hatchability, period of incubation, hatch weight, and embryo mortality. The data were analyzed using descriptive statistics and correlations for some data required and was presented as mean values and standard deviation (SD). Hatching using electric shelves as the media showed the best result. Length of incubation, egg fertility, hatchability, embryo mortality and hatch weight were 40.14±0.69 days,90.00%, 77.78%, 22.22%, 112.94±7.84 g, respectively; those of ex-situ modification were 47.50±0.71 days, 80%, 25%, 75%, 109.05±2.33 g, respectively; and those of soil and serasah media were 41.33±0.58 days, 90%, 33.33%, 66.67%, 113.33±5.05 g, respectively. Hatching modifications using electric shelves improves the quality of hatching, shorten theperiod of incubation, and reduced the mortality.(Keywords: Mountain Maleo (Aepypodius arfakianus), Hatching modification, Hatchability)
Pengaruh Pengaturan Cahaya Step Up - Step Down dan Penambahan Kalsium pada Ransum Ayam Petelur terhadap Penampilan Produksi, Kualitas Telur dan Kandungan Kalsium Plasma Darah (Riswantiyah), Riswantiyah; Yuwanta, Tri; (Zuprizal), Zuprizal
Buletin Peternakan Vol 22, No 4 (1998): Buletin Peternakan Vol. 22 (4) November 1998
Publisher : Fakultas Peternakan UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | http://journal.ugm.ac.id/index.php/buletinpeternakan/article/view/1658

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