Hubungan antara skor hasil bacaan heat detector dengan gambaran sitologi vagina sebagai parameter penentuan estrus pada kambing

This study aimed to determine the relationship between heat detector reading results and the feature of vaginal swab preparations as a parameter for determining estrus in Peranakan Etawa goats. Five healthy non-pregnant goats weighing 20-30 kg, were synchronized using PGF2α (7.5 mg Dinoprost, Enzaprost) intramuscularly twice with 11 days interval. Vaginal cytology examination began the day after the second PGF2α injection. The heat detector (Draminski®, DramiÅ„ski SA, Poland) is an estrus detecting device based on the amount of electric current flowing through the vaginal mucus. Spearman correlation analysis showed a relationship (p <0.05) between heat detector reading and estrus detection based on vaginal cytology. The heat detector readings were very significantly correlated positively (p <0.01) with the number of epithelial cells (coefficient correlation, r= 0.564), but negatively correlated with the number of cornified cells (r = –0.854), and also significantly correlated positively (p <0.05) to the number of leukocytes (r = 0.487). The estrus stages were significantly correlated positively (p <0.05) only to the number of leukocytes (r = 0.918). Likewise, the number of epithelial cells was highly correlated negatively (p <0.01) only to cornified cells (r = –0,643), and the number of cornified cells was significantly correlated negatively (p <0.05) only to the number of leukocytes (r = –0.472). It could be concluded that the features of the proestrus, estrus and metestrus stages based on the goat vaginal cytology was correlated with the reading results of the heat detector.