Abstract:Fertility of cow is the main concern of profitable dairy farming. Cervico-vaginal mucus has a direct relationship with the fertility of cow. As Lakhimi is a newly registered breed from Assam, no information could be traced delineating the association of rheological properties of the estrual discharge with fertility in the Lakhimi breed of cows.Hence, the present study was undertaken to find out the fertility status in relation to the physical properties of cervico-vaginal mucus such as pH, colour, consistency, spinnbarkeit value and fern pattern. The cervico-vaginal mucus was collected at mid-estrus and pH was estimated immediately. The colour was observed at the time of collection and consistency, spinnbarkeit value and fern pattern were observed at laboratory condition.
In cows having clear, thin, alkaline (pH=7.36±0.08) cervico-vaginal mucus with higher spinnbarkeit value (11.41±0.49 cm), and typical fern pattern were observed to be more fertile. In heifers, the cervico-vaginal mucus with clear, thin, alkaline (pH= 7.27±0.07), higher spinnbarkeit value (12.10±0.33 cm) and showing typical fern pattern appeared to favour conception.