Assessment of Peranakan Etawa Goat Milk Quality Based On UTMT-1, Reduction Test, and pH at Raka Etawa Farm, Gianyar Regency
DOI:
https://doi.org/10.24843/JVAS.2026.v08.i02.p07Keywords:
PE goat milk, pH test, reduction time, subclinical mastitis, UTMT-1Abstract
Subclinical mastitis is an inflammation of the mammary gland that can reduce milk quality without showing clear clinical symptoms. This study aimed to analyze the results of the Udayana Tokcer Mastitis Test-1 (UTMT-1), reduction time, and pH value of Peranakan Etawa (PE) goat milk, as well as to evaluate the correlation among these parameters at the Raka Etawa Farm, Gianyar Regency. This observational study used a descriptive-analytical approach with six samples of PE goat milk. UTMT-1 was applied as a screening method for subclinical mastitis based on somatic cell response, while the methylene blue reduction test was used to assess milk quality microbiologically based on reduction time, and milk pH was measured using a digital pH meter. The relationship between parameters was analyzed using Spearman's rho correlation test. The results showed that the UTMT-1 scores ranged from negative to positive, with an average reduction time of 313 ± 53.7 minutes, indicating that the microbiological quality of the milk was generally categorized as fairly good. The pH values ranged from 6.40 to 6.63 with an average of 6.53 ± 0.06. Correlation analysis revealed a strong and significant negative correlation between UTMT-1 scores and reduction time (r = −0.849; p < 0.05), whereas the correlations between UTMT-1 and pH, as well as between pH and reduction time, were not statistically significant (p > 0.05). In conclusion, an increase in UTMT-1 scores was associated with a decrease in reduction time an indicator of reduced microbiological quality of milk, while pH values remained relatively stable within the normal range. These findings suggest that the combined use of UTMT-1 and the reductive test can serve as a practical indicator for evaluating milk quality and detecting subclinical mastitis in Etawa crossbred dairy goats.
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