Isolation and Identification Streptococcus sp. from Dairy Cattle with Subclinical Mastitis in Purwoharjo Banyuwangi

Abstract

Subclinical Mastitis is an inflammation of the mammary gland which frequently found asymptomatic, and can decrease milk production. Streptococcus sp. is one of the pathogenic microorganism agent that can cause subclinical mastitis in dairy cattle. The aim of this study was to detect Streptococcus sp . bacteria in dairy cattle milk product. A total of 26 samples obtained from dairy cattle which positively detected subclinical mastitis using California Mastitis Test (CMT) in Purwoharjo, Banyuwangi. Bacterial isolation and identification was performed using agar culture, Gram staining, and biochemical test. The results showed that Streptococcus sp. bacteria were detected from 5 (19.23%) samples in Purwoharjo, Banyuwangi.