Yohan Rusiyanto
Peternakan, Fakultas Peternakan Dan Perikanan, Universitas Tadulako, Palu, Indonesia.

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DINAMIKA POPULASI SAPI POTONG DI KECAMATAN PAMONA UTARA KABUPATEN POSO Tanari, Mobius; Duma, Yulius; Rusiyantono, Yohan; Mangun, Mardiah
AgriSains Vol 12, No 1 (2011)
Publisher : FAPETKAN UNTAD

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Abstract

The objective of this research was to identify the dynamic population of beef cattle at North Pamona of Poso regency. This research was an analytical descriptive study conducted using survey method on 572 respondents taken using a purposive sampling method from all villages at         North Pamona. The result showed that the composition of beef cattle were 533 (34.88%) bull and 995 (65.12%) cows. The total number of bull calves, bullock and bull were 93, 100 and 340, respectively, while the heifer calves, heifers and cows were 135, 130 and 738 respectively.          The birth rate was 30.89% or 14.83% of the total population whereas the motility rate was 2.7% so that the natural increase was 12.13%.  Key words: Beef cattle, population and reproductivity.
The Influence of Homologous and Heterologous Sera in Culture Medium on in Vitro Maturation and Fertilization of Sheep Oocytes Ita Djuwita; Yohan Rusyiyantono; Kusdiantoro Muhamad; Bambang Purwantara; Yuhara Sukra
Media Veteriner Vol. 5 No. 1 (1998): Media Veteriner
Publisher : Media Veteriner

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The influence of various types of sera i.e. Fetal Calf Serum (FCS), Bovine Post Estrous Serum (SPES) as heterolog sera; and Ewes Fetal Serum (EFS) and Ewes Serum (ES) as homologue sera on in vitro maturation and fertilization of sheep oocytes was investigated using Tissue Culture Medium 199TM (TCM 199. Gibco). Sovine sera were collected from cow at seven days post-estrus, while ewes sera were collected during estrous (ES-HO) and six days post estrous (ES-H6). The result shows that the maturation rate of oocytes cultured in medium supplemented with EFS, ES-HO and ES-H6 at  concentrations of 32.9%, 68.7%, and 67.6% respectively is better than those supplemented with FCS and SPES at concentrations of 22.2% and 28.9%, respectively. In vitro fertilization rate were significantly higher in medium supplemented with ES-HO and ES-H6 at concentration of 65.4% and 65.8% (P < 0.05) than that supplemented with SPES at concentration of 31.7%. In conclusion, ewes sera could be used in culture medium for promoting both in vitro maturation and fertilization rate of sheep oocytes.
The experiments were carried out to study the influence of different sera on in vitro maturation and early development of ovine embryos. Sera used in this study were FLS (Fetal Lamb Serum), ewe serum collected on Day 0 (ES-DO) and Day 6 (ES-D6) of oestrus cycles. Ovine oocyte were matured and cultured in TCM-199 supplemented with 10 % of different sera. Results of this experiment showed that supplementation of ES-DO or ES-D6 could support maturation rate (Metaphase-II) at 68.7% and 67.6%, respec Yohan Rusiyanto; Bambang Purwantara; Yuhara Sukra
Media Veteriner Vol. 7 No. 1 (2000): Media Veteriner
Publisher : Media Veteriner

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Abstract

The experiments were carried out to study the influence of different sera on in vitro maturation and early development of ovine embryos. Sera used in this study were FLS (Fetal Lamb Serum), ewe serum collected on Day 0 (ES-DO) and Day 6 (ES-D6) of oestrus cycles. Ovine oocyte were matured and cultured in TCM-199 supplemented with 10 % of different sera. Results of this experiment showed that supplementation of ES-DO or ES-D6 could support maturation rate (Metaphase-II) at 68.7% and 67.6%, respectively better than FLS (32.9%). The fertilization rate was significantly higher (p
TEKNOLOGI PENETASAN TELUR BURUNG MALEO (Macrocephalon maleo Sal. Muller 1846) SEBAGAI UPAYA KONSERVASI Mobius Tanari; Yohan Rusiyantono; Hafsah Hafsah
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 15, No 4 (2008)
Publisher : Universitas Tadulako

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The objective of the research was to determine the best hatching technique of maleo eggs from various measures such as as ex-situ, incubation time and hatch capacity of maleo bird using incubator. Thirty eggs were collected from the Lore Lindu National Park of Palu, Province of central Sulawesi according to an accidental sampling. The results showed that the mean weight of eggs from the National Lore Lindu Park was 208.80 ± 12.30 g, egg length was 102.85 ± 0.034 mm while egg width was 60.66 ± 0.02 mm.  The mean of incubator temperature of was 34.061 ± 0.19ºC with relative humidity of 70.87 ± 1.43 %. The percent of hatching eggs for incubation time of 53-55 days was 23.81 %, for that of 56-58 days was 23.81 %, for that of 59-61 days was 42.85 % and for that of 62-64 days was 9.53 %.  Thus, the average time for the eggs to hatch was 58.47 ± 2.88 days at the hatched rate of 70%. Based on such figures above, it can be concluded that the hatching technique using incubator could become the conservation strategy for maleo bird in Sulawesi particularly in Central Sulawesi Province
Maleo Birds Egg-Laying Behavior (Macrochepalon maleo) In Kuala Vuno Area, Oloboju Village, Sigi District, Central Sulawesi Province: Perilaku Bertelur Burung Maleo (Macrochepalon maleo) di Kawasan Kuala Vuno, Desa Oloboju, Kabupaten Sigi, Provinsi Sulawesi Tengah Afandi; Yohan Rusyiantono; Mobius Tanari
Jurnal Ilmiah AgriSains Vol. 23 No. 3 (2022): Desember
Publisher : Fakultas Peternakan dan Perikanan, Universitas Tadulako, Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jiagrisains.v23i3.2022.148-153

Abstract

Maleo (Macrocephalon maleo)  termasuk famili Megapodiidae yang merupakan fauna langka dan endemik Pulau Sulawesi. Keistimewaan jenis burung maleo yaitu memiliki telur lebih besar 4-5 kali dari telur ayam kampung, meskipun besar tubuhnya relatif tidak jauh berbeda dengan jenis ayam, dengan warna kerabang telur mendekati warna merah dadu. Penelitian bertujuan mendapatkan gambaran mengenai perilaku bertelur maleo di Kawasan habitat Kuala Vuno Desa Oloboju Kabupaten Sigi Provinsi Sulawesi Tengah. Penelitian menggunakan metode survey dan dianalisis secara deskripif. Peubah yang diamati yaitu perilaku bertelur sebelum bertelur, saat bertelur dan setelah bertelur. Hasil penelitian menunjukkan bahwa perilaku bertelur maleo di Kawasan Habitat Kuala Vuno Desa Oloboju Kabupaten Sigi Provinsi Sulawesi Tengah dimulai dari maleo mendatangi habitat peneluran, melakukan pengintaian pada lokasi yang dituju, lalu menggali lubang untuk meletakkan telur pada lokasi yang aman. Apabila lubang sudah siap maka maleo betina masuk ke dalam lubang untuk bertelur selama beberapa menit sementara maleo jantan mengawasi selama burung maleo betina dalam proses bertelur. Setelah burung maleo betina keluar dari lubang peneluran maka sepasang burung maleo tersebut menimbun dan meninggalkan habitat penelurannya.