The present study describes the use of electrochemiluminescenceimmunoassay (ECL) with the specific human kit for measuring plasma testosterone and progesterone in ovine. This study wascarried out on 16 mixed age animals of the local breed. They were divided into two groups of both sexes, namely Male-1 Group,Male-2 Group, Female-1 Group and Female-2 Group. Blood samples were collected from the jugular vein into tubes containing EDTAand centrifuged at 1500 rpm for 20 min. Plasma was rapidly separated and stored at -20° C until assayed. The reproducibilityinter- and intra-assay of the P4- and T-ECL is satisfactory (2.11-7.3 %). The accuracy (93-102 %) and the test of parallelism were largely acceptable. No cross-reaction was observed with the different hormones including PMSG,hCG, progesterone,testosterone, oxytocin and PGF2α when concentrations of 10 UI/ml and 10-3 UI/ml were used. T concentrations were higher in Male-1 Group than in Male2 Group (1.67 ± 1.15 and 0.38 ± 0.45 ng/ml, respectively). The female-1 Group showed very high P4 concentrations (15.17 ± 4.91 ng/ ml) compared to the Female-2 Group (0.08 ± 0.04 ng/ml). The results obtained clearly show that human ECL system can be used to measure progesterone and testosterone in plasma ovine

Transabdominal ultrasonography has been popularly used in animal reproduction for the assessment of pregnancy status and foetal viability where as transvaginal method for pregnancy diagnosis is rarely used for pregnancy diagnosis in goats. The study was conducted in 74 Attappady Black goats from Government Goat Farm, Attappady and Livestock Research Station, Thiruvizhamkunnu to evaluate the accuracy of trans-vaginal methods and to identify the fetal characteristics from day 20 to 75. Transvaginal ultrasonographic examination was performed using endocavity transducer with frequency of 6.5 to 8 MHz. Observations were made in all the pregnant does at three different stages of pregnancy i.e., 20-35 days, 35-55 days and 55-75 days. Does were diagnosed as pregnant from the observation of gestational sac, embryo or foetus, embryonic or foetal heartbeat, placentomes or foetal skeleton. Sensitivity, specificity, positive predictive value, negative predictive value and overall accuracy along gestation period were 98.03, 92.3, 96.15, 96 and 95.62%, respectively. It is concluded from the present study that transvaginal ultrasonography can be used for herd pregnancy diagnosis at early stages from day 20 to 45 of pregnancy diagnosis in goats.