Vol. 9, Issue 5, Part I (2024)

Author(s): Susmita Das, Fazal Ali Ahmed, K Lalrintluanga, Ranjana Goswami, Girin Kalita and Dibyajyoti Talukdar

Abstract: Zobawng is a rare bovine species and semi-domesticated animal found only in Mizoram. Few studies are available on examining the Zobawng cow’s blood biochemicals and the reproductive hormonal status during various stages of the oestrous cycle. Hence, the current study was conducted on ten numbers of healthy female Zobawng cow to determine the changes in serum biochemical and hormonal levels during the oestrous cycle. The oestrus behaviour was initially observed before the blood sampling and the sample was collected on day 0 (the day that the cow exhibited oestrus signs), 4th, 8th, 12th, 16th and 20th. From the blood, serum was separated for biochemical and hormonal profiling as per standard procedures. The results revealed that serum biochemicals, viz. glucose, cholesterol, calcium, phosphorus and zinc did not differ significantly during different days of the oestrous cycle. Blood estrogen and progesterone levels were found to differ significantly on different days of the oestrous cycle. This study’s findings have provided new perceptions into the blood biochemical and hormonal levels of Zobawng cows during the oestrous cycle and the information may aid in developing a reference range and baseline data for the Zobawng cows for other breeding programs and health monitoring.