Etih Sudarnika
Department of Animal Infectious Diseases and Veterinary Public Health, Bogor Agricultural University

Published : 26 Documents
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Journal : Buletin Peternakan

ROLE OF TEAT DIPPING AFTER MILKING FOR SUBCLINICAL MASTITIS CONTROL AND IMPROVING PRODUCTION OF DAIRY COW Wicaksono, Ardilasunu; Sudarnika, Etih; Pisestyani, Herwin; Sudarwanto, Mirnawati; Zahid, Abdul; Nugraha, Arifin Budiman; Lubis, Muhammad Pauzi; Patsiwi, Iccha Pradipta
Buletin Peternakan Vol 43, No 2 (2019): BULETIN PETERNAKAN VOL. 43 (2) MAY 2019
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (229.69 KB) | DOI: 10.21059/buletinpeternak.v43i2.30380

Abstract

This study was aimed to compare somatic cell count and milk production on dairy cattle after teat dipping post milking application. Samples collected from total of 121 quarters of dairy cattle in normal lactation period and identified as infected by subclinical mastitis. Subclinical mastitis examination was done by IPB Test Mastitis Test, somatic cell count calculation was done by Breed Method, and observation of milk production was done by calculating milk volume per quarter. Observations were performed during normal lactation periods of 12 weeks. Data were analyzed statistically using Mann-Whitney Test and unpaired t-test. The results showed that the number of somatic cells count in the treatment group with post milking teat dipping application was lower than in the control group and significantly different at week 11 (p = 0.039). Furthermore, the volume of milk production in the treatment group was higher than in the control group and significantly different in almost all weeks of observation (p<0.05). It was showed that post milking teat dipping application can prevent subclinical mastitis infection effectively, seen from low somatic cell count (below 400.000 cells/ml) and can maintain optimum milk production. So that, this application can increase the economic benefits for dairy farmers.
PREVALENCE OF SALMONELLA SPP. BACTERIA ANTIBIOTIC RESISTANCE IN DIGESTION TRACT IN THE BROILER FARMS OF SUBANG DISTRICT Walyani, Septa; Purnawarman, Trioso; Sudarnika, Etih
Buletin Peternakan Vol 43, No 1 (2019): BULETIN PETERNAKAN VOL. 43 (1) FEBRUARY 2019
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (303.046 KB) | DOI: 10.21059/buletinpeternak.v43i1.41010

Abstract

This study is aimed to  estimate the prevalence of resistant Salmonella spp., determine the spread of bacterial resistance and investigate the serotypes of bacteria in the chicken?s digestion tract in the broiler farms in Subang District. As many as 74 farms were chosen, five poled caeca samples were taken from each farm and tested for isolation and identification of Salmonella spp. Salmonella isolates obtained were tested antimicrobial susceptibility against 8 antibiotics using the agar dilution method. The antibiotics were gentamycin, tetracycline, ciprofloxacin, nalidixic acid, ampicillin, chloramphenicol, trimethoprim, and sulfamethoxazole. The result showed that 8 out of 74 samples were positive for Salmonella. The prevalence of Salmonella spp. in the digestion tract was 10.8%; 95% confidence interval 3.7%-17.9%. Based on the serological test eight serotypes obtained were Salmonella enteritidis, Salmonella oslo, Salmonella narashino, Salmonella nakuru, and Salmonella nordufer. The result of antibiotic resistance test showed that from 8 Salmonella isolates obtained, 12.5% were found to be sensitive, 75% isolates were resistant to one or two antibiotics, and the remaining 12.5% isolates were resistant to more than two antibiotics; 95% confidence interval (0%-35.4%). The prevalence of resistant Salmonella spp. bacteria in chicken digestion tract in broiler farms in Subang District was high, so integrated control program to reduce antimicrobial resistance problem in broiler farm are greatly needed.