Jurnal Sain Veteriner, Vol. 40. No. 1. April 2022, Hal. 36-43 DOI : 10.22146/jsv.66464 ISSN 0126-0421 (Print), ISSN 2407-3733 (Online) Tersedia online di https://jurnal.ugm.ac.id/jsv 36 Kajian Kristal Struvit pada Kasus-Kasus Anjing dengan Kristaluria dan Urolit Struvit di Praktisi Hewan Kecil Study of Struvite Crystals in Dog with Crystaluria and Urolith Struvite in Small Animal Practition Erni Sulistiawati 1,2* , Dondin Sajuthi 3 , Olivia Kristal 4 , Rini Widayanti 1 1 Program Studi Paramedik Veteriner, Sekolah Vokasi, Institut Pertanian Bogor, Indonesia Jl. Kumbang No. 14, Kampus Cilibende, Institut Pertanian Bogor, 16153. Indonesia 2 Laboratorium Praktek Dokter Hewan Bersama 24 Jam drh Cucu K Sajuthi, dkk., Jakarta, Indonesia 3 Departemen Klinik, Reproduksi dan Patologi, FKH- Institut Pertanian Bogor, Indonesia 4 Fakultas Kedokteran Hewan, Institut Pertanian Bogor, Indonesia * Email: e_sulistia12@apps.ipb.ac.id Naskah diterima: 26 Juli 2021, direvisi: 28 Januari 2022, disetujui: 3 Februari 2022 Abstract Urolithiasis was defned as the formation of urolith or crystal in the urinary tract caused by supersaturation of urine. Cases of struvite urolithiasis are often found in dogs, but publications crystal struvite in crystaluria and urolithiasis in dogs are still seldom reported scientifcally. The aim of this study is explain information about struvite crystal in cases of dogs with crystaluria and urolithiasis in veterinary clinic. This study was conducted at Praktek Dokter Hewan Bersama (PDHB) drh Cucu K. dkk, Jakarta Utara.The data were taken from urinalysis test results, clinical history, clinical signs, indications, and diet of 13 dogs which sufered crystaluria and urolit stone examination from 11 dogs which sufered urolith stone. The result of this study shows that the more frequent detected in male dogs, while urolith stone found more in female dogs. Dogs from 6 mo to 12 yo were afected crystaluria, while dogs from 1 yo to 8 yo were afected urolith stone. The urinalysis showed that dogs with crystaluria had alkaline urine (mean 8), 100% proteinuria, 84.6% hematuria, 30.76% pyuria. A total of 54.54% of the urolith found was a mixture of calcium oxalate and struvite crystal, while the remaining 45.46% were pure struvite crystal. The most commonly seen clinical sign is hematuria that is caused by the existence of crystals. In this study alkaline urine and diet dryfood with high protein may be precursor in struvite crystal formation. Keywords: crystaluria; dog; struvite; urinalysis; urolithiasis Abstrak Urolitiasis merupakan pembentukan urolit atau kristal pada saluran kemih yang disebabkan proses supersaturasi urin. Kasus urolitiasis struvit sering ditemukan pada anjing, namun publikasi terkait kristal struvit pada anjing dengan kristaluria dan urolitiasis masih sedikit dilaporkan secara ilmiah. Studi ini bertujuan untuk mengkaji faktor terbentuknya kristal jenis struvit pada kasus-kasus anjing yang mengalami kristaluria dan urolitiasis di klinik hewan kecil. Studi ini dilakukan di PDHB drh Cucu K. dkk, Jakarta Utara. Data yang digunakan adalah hasil urinalisis, sejarah klinis, gejala klinis, indikasi dan pakan dari 13 pasien anjing yang ditemukan kristaluria struvit dan data pemeriksaan urolit dari 11 pasien anjing yang menderita urolit struvit. Kristaluria lebih banyak ditemukan pada anjing jantan, dan urolit lebih banyak ditemukan pada anjing betina. Kisaran umur yang mengalami kristaluria jenis struvit antara 6 bulan sampai 12 tahun, sedangkan anjing yang mengalami urolitiasis jenis struvit antara 1 tahun sampai 8 tahun. Hasil urinalisis urin anjing yang mengalami kristaluria memiliki pH urin basa (rata-rata pH 8), 100% proteinuria, 84.6% hematuria, dan