Diagnosis Of Fetal Mortality In Ewes And The Time Of Occurrence Using Real- time B. mode Ultrasonography H.M. AL-Rawi , S.N. Omran

Abstract

The aim of this study was to diagnose fetal mortality and the time of
occurrence using real-time ultrasonography. 118 ewes were included in this
experiment, to synchronized estrus of 47 ewes were carried out by using
intravaginal sponges containing 40 mg progesterone for 14 days and then
injected intramuscularly with 500IU of eCG at the time of sponge withdrawal,
while 71 ewes were not treated and left to cycling normally. All ewes were
mated naturally. In order to determinate of fetal numbers and observing fetal
mortality, ewes were examined by 5MHz real- time ultrasonography at interval
20-24, 25-29, 30-34, 35-39 and after day 40 after breeding. The results showed
that embryonic mortality rate in non treated and in treated ewes were 21.4,
45.7% respectively. A high embryonic mortality rate occurred in treated and non
treated ewes within 20-24 days of gestation. There was a positive correlation
between embryonic number and embryonic mortality in treated ewes.