Iman Supriatna

In Vitro Fertilization and Embryo Development of Vitrified Ovine Oocytes Stressed in Sucrose

Experiments were conducted on the morphology, fertilization and embryo development rate of vitrified ovine oocytes matured in vitro. Three vitrification solutions were used for vitrification. PBS supplemented with 1% BSA, 30% ethylene glycol was added by one of three different sucrose concentrations, 1.00 M (VS 1 ), 0.50 M (VS 2 ), and 0.25 M (VS 3 ). The results showed that the percentages of normal vitrified oocytes after warming were 78 and 63% in VS 1 and VS 2 , respectively, which was significantly higher as compared for VS 3 . The fertilization rates were 59 and 66% in VS 1 and VS 2 , respectively, which were also significantly higher as compared with VS 3 (35%). Zygote viability after 18 h was 57; 43; and 40%, for VS 1 ,VS 2 , and VS 3 , respectively, which was not significantly different. The incidence of polyspermic penetration increased with increasing sucrose concentration, i.e 23, 11, and 9% in VS 1 , VS 2 , and VS 3 , respectively, as compared with unvitrified oocytes (4%). The cleavage rate of vitrified oocytes in VS 1 was 13.2% which was significantly lower (p<0.05) compared to those of unvitrified control oocytes (70.0%). Hence, a high sucrose concentration is beneficial for maintaining the oocyte structure during the processes of vitrification and thawing, which ultimately results in increased in vitro fertilization rates.

Gambaran Umum Kajian Profil Hormon Steroid Menggunakan Metode Non-Invasif dari Sampel Feses

Kajian terhadap profil hormon-hormon steroid merupakan kunci penting dalam upaya memahami aspek fisiologis satwa. Beberapa dekade terakhir telah dikembangkan metode alternatif untuk mengetahui profil hormon steroid, yaitu melalui pengukuran metabolit hormon steroid yang diekskresikan melalui ekskreta tubuh seperti feses. Metode tersebut dikenal sebagai metode non-invasif. Metode ini memungkinkan pengumpulan sampel secara terus menerus dalam jangka panjang dengan meminimalisasi gangguan terutama pada satwa liar. Kajian terhadap profil metabolit hormon steroid yang terukur dapat diaplikasikan antara lain untuk mengetahui status reproduksi, penentuan jenis kelamin, studi perilaku hingga monitoring tingkat stres satwa. Berbagai kajian dengan memanfaatkan metabolit hormon steroid telah berhasil diaplikasikan pada berbagai taksa vertebrata. Tulisan ini memberikan gambaran terkini mengenai aplikasi metode non-invasif untuk kajian profil metabolit hormon steroid dari sampel feses.

The qualitative variation of Katingan cattle

The characterization is main activities in order to identify important trait of Katingan cattle. Information of its phenotypic characteristic is not available yet. The aim of the study is to describe the qualitative characteristic of Katingan cattle. Three location of the study were sub-district of Tewah Sanggalang Garing (Pendahara Village), sub-district of Pulau Malan (Buntut Bali Village), and sub-district of Katingan Tengah (Tumbang Lahang Village). The samples of Katingan cattle were taken as many as possible based on the field conditions to observe pattern of colour, growth of horn and gibbosity appear among two horns. General characteristic of Katingan cattle was various in colours of coat, having horns, humped and dewlop. The main characteristics were expressed at female of Katingan cattle. There were six variations of horn shape at female, however the growth of arching forwards was dominant (78.4%). Horn shape of male was generally grown upside (98.3%). Gibbosity was founded among horn only at female cattle (92.6%). There were 9 combinations of coat colour of female Katingan Cattle, those were brown reddish (27%), brown whitish (14.1%), brown like colour of Bali cattle (13.8%), black (12.5%), brown dull (9.6%), brown sorrel (9.3%), blackish (7.1%), white brownish (5.5%) and white grayish (4.5%). Male of Katingan cattle had eight colour combinations, those were brown whitish (14.8%), brown whitish and reddish (14.8%), brown reddish (13.1%), blackish (12.3%), brown whiteish with black withers (10.7%), brown sorrel (9.8%) and brown sorrel with black withers (7.8%). Based on qualitative analysis, the Katingan cattle had variations in coat of colour, growth of horn and the gibbosity. The variation of coat colour had potentially selection related to the value of cultural. Key Words: Katingan Cattle, Qualitative, Coat Colour, Horn, Gibbosity

Evaluation of genetic diversity of Katingan catlle and their genetic relationship with some other local catlle through DNA microsatellite analysis

Katingan cattle is one of Indonesian animal genetic resources located in Katingan District, Central Kalimantan. The Katingan cattle is predicted to be extint, therefore it is necessary to conserve the cattle. Breed characterization is the primary step in any conservation program. Characterization was done using 10 microsatellite markers to evaluate the genetic diversity of Katingan Cattle in three subpopulations and their genetic relationship with some other local cattle. A total number of 72 random whole blood of Katingan samples consisted of Pendahara (20 samples), Buntut Bali (20 samples), and Tumbang Lahang (32 samples) were used. The samples of Bali, PO, and Limousine Cattle were 11, 6, and 3 respectivelly. The number of 136 aleles were found with the variation from 9 aleles (ILSTS089) to 18 aleles (ILSTS013) and the average of the alele was 13.6 aleles per locus. A number of alel from Tumbang Lahang was higher (10.8 aleles) than Pendahara (10.4 aleles) and Buntut Bali subpopulation (7.3 aleles). Some loci produced polymorphic diagnostic aleles which varied from 1-7 types of allele. HEL013 and BM1818 had four aleles, while ILSTS026 and ILSTS089 had five and six aleles respectively. ILSTS029 and ILSTS036 had seven aleles. The diagnostic aleles were also found in Tumbang Lahang subpopulastion, as well as in Pendahara, and Buntut Bali. Heterozigositas values of Pendahara, Buntut Bali, and Tumbang Lahang subpopulation were 0.454, 0.478, and 0.529 respectively. While the average of heterozigositas (Ĥ) was 0.492. Subpopulation of Tumbang Lahang was closer genetically to Pendahara (0.169) than Buntut Bali (0.173) and also the subpopulation was closer genetically to PO cattle (0.259) when compared to Buntut Bali (0.311) and Pendahara (0.329). The population of Katingan cattle was within one kluster with PO Cattle. Key Words : Katingan Cattle, Microsatellite, Genetic Diversity

In Vitro Fertilization and Embryo Development

Sperm collected from cauda epididymis is a source of male gametes. The purposes of this study was to evaluate an quality of frozen-thawed sperm of garut ram which was collected from cauda epididymis and cryopreserved with modified Tris extender, i.e: Tris extender (control, KT), Tris extender + 60 mM lactose (LS), and Tris extender + 60 mM lactose + 0.05% glutathione (GL). Quality of collected sperm including concentration, motility, live sperm, abnormality, cytoplasmic droplet, intact acrosomal cap (IAC), and intact plasma membrane (IPM) were evaluated. Results showed that mean of sperm concentration, percentages of motility, live sperm, abnormality, cytoplasmic droplet, IAC, and IPM of fresh epididymal sperm were 13,993.33 million/ml, 70.83, 82.83, 10.83, 8.5, 85.83, and 81.33%, respectively. Sperm quality after equilibration for LS and GL were significantly (PExperiments were conducted on the morphology, fertilization and embryo development rate of vitrified ovine oocytes matured in vitro. Three vitrification solutions were used for vitrification. PBS supplemented with 1% BSA, 30% ethylene glycol was added by one of three different sucrose concentrations, 1.00 M (VS1), 0.50 M (VS2), and 0.25 M (VS3). The results showed that the percentages of normal vitrified oocytes after warming were 78 and 63% in VS1 and VS2, respectively, which was significantly higher as compared for VS3. The fertilization rates were 59 and 66% in VS1 and VS2, respectively, which were also significantly higher as compared with VS3 (35%). Zygote viability after 18 h was 57; 43; and 40%, for VS1,VS2, and VS3, respectively, which was not significantly different. The incidence of polyspermic penetration increased with increasing sucrose concentration, i.e 23, 11, and 9% in VS1, VS2, and VS3, respectively, as compared with unvitrified oocytes (4%). The cleavage rate of vitrified oocytes in VS1 was 13.2% which was significantly lower (p