# Plasma Cortisol Concentrations after CIDR Insertion in Beef Cows > Long S.T. URL kanonis: https://discover.unhas.ac.id/publications/pub_scopus_78751527558 Jurnal / Konferensi: Reproduction in Domestic Animals Tahun terbit: 2011 DOI: https://doi.org/10.1111/j.1439-0531.2010.01611.x ISSN: 09366768 Kuartil SJR: Q2 Citations: 3 ## Authors - Long S.T. ## Abstract The objective of this study was to show plasma cortisol concentration after treatment with controlled internal drug release (CIDR) in non-suckling beef cows. On day 9 after oestrus, two cows were inserted with CIDR into the vagina for 24 h and the other two cows were treated as a control group. Four days later, the two control cows were treated with CIDR and the other two CIDR-treated cows were used as controls. Cortisol concentrations were determined by ELISA in plasma samples collected before, during and after insertion of CIDR. There was a significant increase in plasma cortisol concentrations (p<0.01) after insertion of CIDR. Mean (± SEM) plasma cortisol concentrations increased from 1.3 ± 0.4 to a peak of 8.8 ± 1.1 ng/ml at 5 h and then decreased to basal concentrations at 7 h after insertion of the device. In conclusion, the insertion of intra-vaginal device causes an increase in plasma cortisol concentrations in beef cows, although the pathophysiological significance of the elevation of cortisol is not known. ## Keywords - Political science - Art - Humanities --- Sumber: Discover Unhas — RIMS Universitas Hasanuddin. Saat mengutip, gunakan DOI bila tersedia atau URL kanonis di atas.