Studies on certain reproductive parameters

A study was undertaken for the reproductive parameters of Malnad Gidda in its native tract to assess the response of repeat breeding Malnad Gidda cows to oestrus synchronization.Various reproductive and productive parameters of Malnad Gidda cows were studied in three taluks of Shivamogga district Tirthahalli Sagar and Hosanagar. The parameters like age at puberty of 25.15±0.29 months age at first calving of 39.32±2.99 months dry period of 6.22±1.26 months calving interval of 13.68±2.55 months gestation period of 282.14±9.03 days service period of 136.73±10.03 days lactation length of 258.22 ± 10.95 days milk yield per day of 3.69±0.32 kg total milk yield of 227.19±8.31 kg days to reach peak milk yield of 46.19±0.51 day birth weight of the new born calf of 8.71±0.45 kg time taken for expulsion of fetal membranes of placenta of 4.63±0.39 hours onset of postpartum oestrus of 77.64±1.98 days duration of oestrus period of 15.25±1.67 hours time of ovulation of 15.15 ± 1.7 hours and length of oestrus cycle of 22.63±2.96 days were recorded.