Mokhamad Fakhrul Ulum, Mokhamad
Department Of Reproductive Clinics And Pathology, Faculty Of Veterinary Medicine, Institut Pertanian Bogor. Jl. Agatis, Dramaga, Bogor 16680, West Java Indonesia

Published : 55 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Analysis of Estrous Status in Beef Cows Through Ferning Tests, Vaginal Swabs, and Vulvar Morphology Appearance Tampubolon, Andre Rymma; Suprayogi, Agik; Ulum, Mokhamad Fakhrul
Jurnal Ilmu Dan Teknologi Peternakan Indonesia (JITPI) Indonesian Journal of Animal Science and Technology) Vol 10 No 1 (2024): Jurnal Ilmu dan Teknologi Peternakan Indonesia (JITPI) Indonesian Journal of Ani
Publisher : Faculty of Animal Husbandry, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jitpi.v10i1.198

Abstract

Penelitian ini bertujuan untuk mengetahui status birahi induk sapi potong melalui uji ferning, evaluasi profil sel epitel vagina, dan tampilan fisik vulva pada sapi potong. Penelitian ini menggunakan 11 ekor sapi potong yang dibagi dalam dua kelompok yaitu kelompok pertama 3 ekor untuk uji prosedur standar dan kelompok kedua 8 ekor untuk penilaian lapangan. Parameter yang digunakan dalam uji ferning adalah munculnya kristal mirip pakis dari air liur; metode usap vagina memberikan perbedaan sel yang ada dalam satu siklus estrus, dan tampilan fisik pada vulva berupa pembengkakan, kemerahan, dan lendir pada area vulva. Hasil penelitian menunjukkan, bahwa sapi potong yang berahi menunjukkan bentuk kristal berupa pola seperti pakis pada uji ferning, pembengkakan dan kemerahan pada vulva, serta sel superfisial mendominasi pada profil sitologi vagina. Metode yang digunakan bersifat saling melengkapi dalam menilai status berahi pada sapi.
Evaluasi Kinerja Pertumbuhan Sapi Silangan Belgian Blue dan Peranakan Ongole Jakaria Jakaria; Edwar Edwar; Mokhamad Fakhrul Ulum; Rudy Priyanto
Jurnal Agripet Vol 19, No 2 (2019): Volume 19, No. 2, Oktober 2019
Publisher : Agricultural Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/agripet.v19i2.15022

Abstract

ABSTRAK. Tujuan penelitian ini adalah mengevaluasi kinerja pertumbuhan sapi persilangan Belgian Blue (BB) dan sapi Peranakan Ongole (PO) pada turunan pertama (F1). Sapi persilangan (BB dan PO) yang digunakan sebanyak 15 ekor terdiri atas jantan 6 ekor dan betina 9 ekor, selain itu digunakan 8 ekor sapi PO betina yang dipelihara di Balai Embrio Ternak (BET) Cipelang Bogor. Peubah yang diamati adalah bobot lahir (BW), bobot sapih (WW) 205 hari, bobot 1 tahun (YW), pertambahan bobot badan harian dari lahir (GBW) sampai sapih (GWW) dan pertambahan bobot badan harian dari sapih (GWW) sampai umur 1 tahun (GYW). Data dianalisis secara deskriptif dan perbedaan antar sapi silangan (BB-PO) dengan sapi PO dilakukan uji t. Hasil analisis bobot badan dan pertumbuhan menunjukkan bahwa, bobot badan sapi silangan BB dan PO lebih tinggi dibandingkan dengan sapi PO pada WW 205 hari (165,221,3 kg dan 11515,2 kg), YW (365 hari) (240,728,1 kg dan 194,926,1 kg) dan GBW sampai GWW (0,6750,097 kg dan 0,4410,059 kg). BW dan GWW sampai GYW tidak berbeda antara sapi silangan BB-PO dengan PO. Hasil penelitian ini menunjukkan bahwa program cross-breeding sapi BB dengan PO dapat meningkatkan kinerja bobot badan dan pertumbuhan.(Growth performance evaluation of belgian blue and ongole crossbreed)ABSTRACT. The purpose of this study was to evaluate the growth performance of cross-breeding of Belgian Blue (BB) and Ongole Grade (PO) cattle in the first generation (F1). Crossbred of BB and PO cattle used as many as 15 individuals consisting of 6 males and 9 females, also, 8 individual PO females are used which are kept in the Livestock Embryo Center (BET) Cipelang, Bogor. The observed variables were birth weight (BW), weaning weight (WW) 205 days, 1-year weight (YW) 365 days, daily body weight gain from birth (GBW) to weaning (GWW) and daily body weight gain from weaning (GWW) until the age of 1 year (GYW). Data were analyzed descriptively and the difference between cross-breeding (BB-PO) cattle and PO cattle was analyzed by t-test. The results of body weight and growth analysis showed that crossbred BB and PO cattle were higher than PO cattle at WW 205 days (165.2 21.3 kg and 115 15.2 kg), YW (365 days) (240.7 28.1 kg and 194.9 26.1 kg ) and GBW to GWW (0.675 0.097 kg and 0.441 0.059 kg). BW and GWW to GYW do not differ between crossbred BB-PO and PO cattle. The results of this study indicate that the cross-breeding program for BB cattle with PO cattle breeds can improve the performance of body weight and growth.
ULTRASONOGRAPHY OF THE EXTERNAL REPRODUCTIVE ORGANS IN TOM Ulum, Mokhamad Fakhrul; Maharani, Anizza Dyah Kartika; Kurniawan, Rizal Eko; Sariningrum, Arlita; Frastantie, Dilla; Erwin, Erwin; Tumbelaka, Ligaya ITA; Noviana, Deni
Jurnal Kedokteran Hewan Vol 11, No 3 (2017): September
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v11i3.5700

Abstract

This study aims to delineate the tissue structure of male cat external reproductive organs using ultrasound with different types of consoles and transducers frequencies through indirect method. External organ of 5 tom weighing 2-3 kg was evaluated using ultrasound with stationary console (linear transducer, 10 MHz) and portable console (linear transducer, 6.5 MHz), transcutaneously. The results showed that both console and transducer could not visualize the structure of organs sized less than 10 mm through direct method. However, the indirect method using stationary console with a 10 MHz transducer enable to visualize the organ and depicts clearly the internal organ structure such as penis and its parts, scrotum and its constituent layers, caput and cauda of epididymis, and testicles. Furthermore, portable console with 6.5 MHz transducer was still able to provide an adequate image of those organs. In general, fibrous tissues such as tunica vaginalis, tunica Dartos, funiculusspermaticus, and urethra were visible in ultrasonogram as hyperechoic structures, while soft tissues such as the parts of testicles and penis were visible as hypoechoic structures. Tissue containing fluid such as urethral lumen was visible as anechoic structure. In conclusion, indirect ultrasound imaging method was sufficient to visualize the organs sized less than 10 mm using 3-15 MHz transducer in which was currently widely used in animal health care clinics.
BRIGHTNESS-MODE EKOKARDIOGRAFI DOMBA JAWA JANTAN EKOR TIPIS Fakhrul Ulum, Mokhamad; Utami, Nur Fitri; Dwi Utami, Nindya; Noviana, Deni
Jurnal Kedokteran Hewan Vol 9, No 2 (2015): September
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v9i2.2838

Abstract

Penelitian ini bertujuan mencitrakan jantung domba jawa ekor tipis (DET) secara ekokardiografi. Domba ekor tipis jantan sebanyak lima ekor dengan berat 14-16 kg berumur 10-12 bulan digunakan dalam penelitian ini. Domba dipegang dan dibaringkan pada meja khusus tanpa sedasi ataupun pembiusan. Organ jantung domba dicitrakan menggunakan ultrasonografi brightness-mode (B-mode). Transduser cembung dengan frekuensi 2,5-4 MHz digunakan untuk mencitrakan jantung pada posisi right parasternal (RPS) view dan left parasternal (LPS) viewdengan posisi long axis (LAx) dan short axis (SAx). Hasil pencitraan ekokardiografi menunjukkan bahwa bagian-bagian dari organ jantung yang tersusun atas cairan terkesan anechoic, sedangkan bagian yang tersusun atas jaringan lunak terkesan hypoechoic dengan derajat ekogenisitas yang bervariasi. Bagian-bagian struktur jantung dapat dibedakan menurut ruang jantung atrium kanan, ventrikel kanan, atrium kiri dan ventrikel kiri. Bagian-bagian jantung yang dapat dicitrakan seperti septa jantung, otot papilaris, katup jantung semilunaris, katup jantung mitralis, katup jantung trikuspidalis, pembuluh darah vena paru-paru dan aorta. Ekokardiografi B-mode pada organ jantung domba jawa ekor tipis dapat mencitrakan dengan baik struktur ruang, otot, katup dan pembuluh darah besar dengan derajat ekogenisitas yang bervariasi.
PENGARUH IMPLANTASI POROUS TANTALUM BERLAPIS HIDROKSIAPATIT TERHADAP GAMBARAN DARAH MERAH TIKUS SPRAGUE DAWLEY Panjaitan, Budianto; G, Gunanti; Noviana, Deni; Fakhrul Ulum, Mokhamad; Sukmana, Irza
Jurnal Kedokteran Hewan Vol 8, No 2 (2014): September
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v8i2.2650

Abstract

Penelitian ini bertujuan mengetahui gambaran darah merah pada tikus yang diimplan porous tantalum berlapis hidroksiapatit. Dalam penelitian ini digunakan 12 ekor tikus jantan, galur Sprague Dawley, umur 3 bulan yang dibagi dalam tiga kelompok yaitu kelompok kontrol tanpa implant (K1), kelompok implan porous tantalum (K2), dan kelompok implan porous tantalum berlapis hidroksiapatit (K3). Pengambilan darah dilakukan melalui vena pada ekor di hari ke-0 sebelum pemasangan implan, ke-14, dan ke-30 setelah pemasangan implan. Pengamatan data parameter darah merah meliputi jumlah sel darah merah, kadar hemoglobin (Hb), dan persentase hematokrit. Hasil perhitungan jumlah sel darah merah, kadar Hb, dan hematokrit menunjukkan perbedaan yang tidak nyata (P>0,05) pada masing-masing kelompok perlakuan kecuali jumlah sel darah merah pada kelompok tikus yang yang diimplan dengan porous tantalum tanpa lapis meningkat pada hari ke-30 dan menunjukkan perbedaan dibandingkan kelompok lainnya (P
Meat Quality Comparison in Bali, Wagyu, and Their Cross-Breed Cattle Using Ultrasound Imaging Setyani, Ni Made Paramita; Priyanto, Rudy; Ulum, Mokhamad Fakhrul; Sutikno, Sutikno; Jakaria, Jakaria
Jurnal Agripet Vol 24, No 2 (2024): Volume 24, No. 2, October 2024
Publisher : Faculty of Agriculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/agripet.v24i2.31931

Abstract

This study aimed to compare the meat quality of different beef cattle breeds using ultrasound imaging. A total of 28 cattle, aged 1-2.5 years, from three breeds were analyzed: Wagyu (n=7), Bali (n=10), and WagyuBali cross-breeds (n=11). Meat quality traits, including longissimus dorsi thickness (LDT), backfat thickness (BFT), intramuscular fat (IMF), and marbling score (MS), were assessed using ultrasound imaging. The association between breed and meat quality was analyzed using a completely randomized design (CRD) followed by Tukey's test. Additionally, principal component analysis (PCA) was employed to identify clusters of meat quality potential among the different breeds. The results indicated that WagyuBali cross-breeds exhibited the highest LDT (46.3804.770 mm), though the difference was not statistically significant (P0.05) compared to either Bali or Wagyu cattle. However, significant differences (P0.05) were observed between Bali and Wagyu cattle. For BFT, MS, and IMF, Wagyu cattle outperformed both Bali cattle and WagyuBali cross-breeds, with values of 5.4900.806 mm, 6.0100.998, and 49.058.140%, respectively. The PCA revealed two primary clusters: the first cluster, comprising Wagyu cattle, accounted for 75.6% of the diversity and was characterized by BFT, IMF, and MS as key variables. The second cluster included Bali cattle and WagyuBali cross-breeds, representing 21.5% of the diversity, without any specific meat quality variable as a defining marker. Ultrasound imaging effectively estimated meat quality in Bali cattle and their cross-breeds, demonstrating its potential as a tool for meat quality assessment across different breeds.
Fatty Acid Profiling of Bali and Wagyu Cattle using Principal Component Analysis Dairoh, Dairoh; Sutikno, Sutikno; Ishak, Andi Baso Lompengeng; Priyanto, Rudy; Sumantri, Cece; Ulum, Mokhamad Fakhrul; Jakaria, Jakaria
Buletin Peternakan Vol 48, No 1 (2024): BULETIN PETERNAKAN VOL. 48 (1) FEBRUARY 2024
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v48i1.86454

Abstract

This study aimed to compare the fatty acid profiles of Bali cattle and Wagyu cattle. A total of 50 beef was used in this study, consisting of 44 Bali cattle from Kupang, NTT, and 6 samples of Wagyu cattle from supermarkets. The fatty acid profiles identified are saturated and unsaturated (MUFA and PUFA). The fatty acid analysis used is the Gas Chromatography (GC) method. Descriptive analysis was used to examine data on the fatty acid profile, and T-test analyzed fatty acid composition differences between Bali and Wagyu beef. Differences in fatty acid compositions have been reported based on breeds. The Bali beef had significantly (p<0.05) higher saturated fatty acid than Wagyu. Several fatty acids of meat from Bali cattle were significantly different (p<0.05) from Wagyu, except for myristoleic (C14:0) and palmitoleic acids (C16:0) did not show significant differences (p>0.05). The principal component analysis (PCA) results showed that the first principal component was UFA, MUFA: SFA ratio, oleic acid, omega-9, MUFA, and palmitic acid. In contrast, the second principal component was myristoleic acid, linolenic acid, omega-3, PUFA: SFA ratio, PUFA, omega-6, linoleic acid, stearic acid, SFA, and palmitoleic acid. The study's findings revealed that Bali beef had a much more saturated fatty acid composition of Bali beef was higher than Wagyu beef. This result suggests that Wagyu cattle have a more favorable fatty acid profile, which benefits health.
Estimasi Kualitas Karkas Hidup pada Kerbau Rawa dan Kerbau Sungai dengan Ultrasonografi pada Berbagai Umur Veni RVS; Isdoni Isdoni; Agung S. P. Lumban Tobing; Mokhamad Fakhrul Ulum
Jurnal Ilmiah Peternakan Halu Oleo Vol 6, No 1 (2024):
Publisher : Fakultas Peternakan Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56625/jipho.v6i1.30041

Abstract

Ultrasonography is a non-invasive diagnostic tool which potential for examining carcasses periodically, cheap, easy, and accurate to demonstrate carcass characteristics, quantity and quality of meat. This study aims to predict the quality of live carcass in swamp buffaloes and river buffaloes based on age and breed by ultrasonography. Ultrasound imaging was carried out with a longitudinal and transverse point of view using a convex transducer with a frequency of 5 MHz and a depth of 180 mm. There were 10 swamp buffaloes and 10 river buffaloes that were grouped into 1-3 years (n = 5) and 3-6 years (n = 5). The result of ultrasound images appears as anechoic images of muscle and hyperechoic images of fat and bone. Carcass analysis used AUSMEAT with the regression y = 0.4546+0.1697 x with R2 of 0.9833 for marbling score and the regression y = - 0.03003+0.4217 x with R2 of 0.9933 for percentage of intramuscular fat showed that swamp buffaloes and river buffaloes aged 3-6 years had the Longissimus dorsi muscle thickness, rump muscle thickness, backfat thickness, rump fat thickness, marbling score and percentage of intramuscular fat were higher than aged 1-3 years (P<0.05). However, analysis of ultrasound images based on breed showed that swamp buffaloes and river buffaloes had the same carcass quality (P>0.05).
THE EVALUATION OF FROZEN SEMEN PRODUCTION POTENTIAL IN ETAWAH GRADE AND ANGLO-NUBIAN BREEDS (Evaluasi Potensi Produksi Semen Beku pada Kambing Peranakan Etawah dan Anglo Nubian) Casmuti Casmuti; Mokhamad Fakhrul Ulum; Syahruddin Said; Taufiq Purna Nugraha; Asep Kurnia; Raden Iis Arifiantini
JURNAL NUKLEUS PETERNAKAN Vol 13 No 1 (2026): Juni
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/nukleus.v13i1.27812

Abstract

This study aimed to evaluate the potential of frozen semen production in Etawah Grade and Anglo-Nubian breeds based on fresh semen characteristics and to assess variations among individuals and breeds. The research was conducted at the Lembang Artificial Insemination Center, West Bandung, using primary data from five ejaculations per individual and secondary data from the year 2024. Fresh semen was evaluated for semen volume, sperm motility, and sperm concentration, reflecting the number of straws that can be produced per ejaculation. Frozen semen production potential was calculated based on semen volume, sperm motility, and sperm concentration. The results showed significant differences (P<0.01) in production potential among individuals and between breeds. The highest production potential was observed in the buck named Andromeda (122.45 ± 2.07 straws), which was significantly higher than that of other individuals. Anglo-Nubian breed showed a higher production potential (105.76 ± 2.54 straws) compared to Etawah Grade (91.63 ± 1.92 straws). However, Etawah Grade bucks exhibited relatively better sperm motility. In conclusion, both individual and breed factors significantly influence frozen semen production potential. Anglo-Nubian bucks have higher production capacity, while Etawah Grade bucks may offer better sperm quality. These findings provide important insights for optimizing breeding strategies and semen production planning in artificial insemination programs.
COMPARATIVE ANALYSIS OF PROBING AND CONTRAST RADIOGRAPHY FOR GENDER DETERMINATION IN RETICULATED PYTHONS (Malayopython reticulatus) Zhi Yien Tan; Okti Nadia Poetri; Mokhamad Fakhrul Ulum
BIOTROPIA Vol. 31 No. 3 (2024): BIOTROPIA Vol. 31 No. 3 December 2024
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2024.31.3.2278

Abstract

Article Highlights- Accurate gender identification supports effective breeding programs and ensures snakes' welfare.- This study emphasizes that probing is more reliable and efficient than contrast radiography for gender determination in reticulated pythons.- The probing method proved to have 100% accuracy in determining the gender of reticulated pythons, outperforming contrast radiography, which only achieved 75% accuracy. AbstractReticulated pythons, like most snakes, do not exhibit noticeable sexual differences, which makes gender determination necessary. Probing and contrast radiography were chosen as methods to determine sex and to compare their accuracy. Six reticulated pythons with body lengths of 128-167 cm, tail lengths of 5.4-9.6 cm, and body diameters of 1.4-3.4 cm were examined twice by probing and contrast radiography. The results showed that probing had 100% accuracy, with probe lengths ranging from 1.37-3.60 cm for male snakes and 0.3-0.76 cm for female snakes. Contrast radiography had 75% accuracy, with the hemipenis appearing as a white silhouette and female snakes appearing colorless. The accuracy rates highlight the effectiveness of probing over contrast radiography for reliable gender determination in reticulated pythons
Co-Authors . Aryogi . Nsereko Adelaide Jose Pereira Cristovao Agik Suprayogi Agung S. P. Lumban Tobing Ali Omar Alahmad Amin Wahyudiono Amira Putri Pertiwi Amira Putri Pertiwi Amrozi Andhika Yudha Prawira Andi Baso Lompengeng Ishak ANIK BUDHI DHARMAYANTHI Anizza Dyah Kartika Maharani Anizza Dyah Kartika Maharani Annang Dwijatmiko Arlita Sariningrum Arlita Sariningrum Aryani Satyaningtijas Asep Gunawan Asep Kurnia Bambang Purwantara Bambang Purwantara Bambang Purwantara Bong Ai Yin Budianto Panjaitan Budianto Panjaitan budianto panjaitan Casmuti Casmuti Cece Sumantri Chairun Nisa’ Dairoh Dairoh Dairoh Dairoh DAIROH DAIROH DAIROH DAIROH Dairoh Dairoh, Dairoh Damiana Rita Ekastuti Dedi Rahmat Dedi Rahmat Setiadi Dedy Duryadi Solihin Deni Noviana Desi Khairunissa Rahayuningtyas Devi Paramitha Devi Paramitha Devi Paramitha DEWI LESTARI Dhenok Maria Ulva DIAN ERMA WARU TIDOLF SIHITE Dian Vidiastuti Didik N Hadi Dilla Frastantie Dwi Utari Rahmiati Edwar Edwar EDWAR EDWAR Ekayanti Mulyawati Kaiin Ekayanti Mulyawati Kaiin Elma Yuliani Yessa Elma Yuliani Yessa Erwin Erwin Erwin Erwin EVA AMALIA PERTIWI FADHIL MUHARRAM Fathan Abdul Aziz Fathul Bari Fatri Alhadi Fitra Aji Pamungkas Fitra Aji Pamungkas Fitra Aji Pamungkas frastantie, Dilla Fuadi Zulkipli Gunanti . Hamdan Ubaidillah Hammada Raudlowi Hariono HERA MAHESHWARI I Gusti Ngurah Sudisma Ietje Wientarsih Ietje Wientarsih Intan Citraningputri Irza Sukmana Irza Sukmana, Irza Isdoni Bustaman Ishak, Andi Baso Lompengeng JAKARIA JAKARIA Jakaria Jakaria JAKARIA JAKARIA Jakaria Jakaria Jakaria koekoeh santoso komariah komariah Kudang Boro Seminar Kuntum Rahmawati Kurniawan, Rizal Eko Laily Purnamasari Lena Indraswari Ligaya I.T.A Tumbelaka Maharani, Anizza Dyah Kartika Maryani Maryani MASKUR MASKUR Muchidin Noordin Muhammad Agil Muhammad Gunawan MUHAMMAD MUHSININ Muhammad Nico Ghossani Muhammad Piter Kombo Muhammad Piter Kombo Muhammad Risman Wahid Muladno - Nelda Fliza Zora Nena Hilmia Nena Hilmia Ni Made Paramita Setyani Ni Wayan Kurniani Karja Niluh Selly Frantika Nindya Dwi Utami Nindya Dwi Utami Nindya Dwi Utami, Nindya Nur Fitri Utami Nur Fitri Utami Nur Fitri Utami Nurul Aeni Ayu Lestari Nurul Aeni Ayu Lestari Nurul Aeni Ayu Lestari Okti Nadia Poetri Prastya Idihastuti Prisetiadi, Alif Pudji Achmadi Purnamasari, Gita Cempaka Raden Iis Arifiantini Rangga Setiawan Rangga Setiawan Rani Audona Rantan Krisnan Ridi Arif Riki Siswandi Rini Widyastuti Rini Widyastuti Rivangga Yuda Hendika Rizal Eko Kurniawan Ronald Tarigan Ronny Rachman Noor Rudy Priyanto RVS, Veni SAIFUL ANWAR SAMUEL AKWILA Sari Yanti Hayanti Sariningrum, Arlita Savitri Novelina Sigid Prabowo Siti Sa’diah Siti Zaenab Sri Estuningsih Srihadi Agungpriyono Surya Kusuma Wijaya Surya Kusuma Wijaya Sutikno Sutikno SUTIKNO SUTIKNO Syahruddin Said Syifa Khairunnisa Tampubolon, Andre Rymma TAPAUL ROZI Taufiq Purna Nugraha Tobing, Agung S. P. Lumban Veni RVS Vincentia Trisna Yoelinda Wasmen Manalu Winda Rahmania Winni Liani Daulay Yudi Fikri Zhi Yien Tan Zulfi Nur Amrina Rosyada Zultinur Muttaqin