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The Ethiopian Agricultural Research is one of the oldest and largest agricultural research system in Africa. Ethiopian Agricultural Research System (EARS) has evolved through several stages since its first initiation during the late 1940s, following the establishment of agricultural and technical schools at Ambo and Jimma. In 1955, a full-fledged agricultural experiment station was established at Debre Zeit (now named Debre Zeit Agricultural Research Center) under the then Imperial College of Agricultural and mechanical Arts (now called Haramay [...]

Journal Article

Journal article

A Note on the effect of Calotropis procera On EWE Gestation.  [1979]

Meyer,C.E and Galal,E.S.E and Afeworke Tesfazgy(Officers and Assistant research Officer respectively); Ethiopian Journal of Agricultural Sciences [Corporate Author]

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Sixteen ewes in their 13th week of pregnancy were used to investigte the effect of feeding Calotropis procera on the development of pregnancy. They were divided into two equal groups, a control and a treated. One abortion occured in teh control group and none in the treated. The two groups did not differ in gestation length or birth weight. However, the variability in gestation length was significantly lower (p.05), in the group feeding on Calotropis procera than the control one. At Melka Were Research station (Hararge, Ethiopia) of the Institute of Agricultural Research, 20 abortions occured in the experimental flock from Aguust 9,1979 to November 3,1977 out of 245 conceptions. Abortions occured mainly around 31/2 4 months of pregnancy. Ewes aborted and lambs born alive showed no symptoms of sickness. Abortions could not be traced to particular rams, since it occured in 13 out of 16 rams groups. Serological tests of brucellosis (tube sero agglutination test or card test) were made on 9 aborted and 9 nonaborted ewes and 3 rams. All were negative except those on nonaborted ewes which were doubtful. Also, the laboratory could not identify and baceteria that could be responsible for abortion from 2 fetuses. Since that coincided with the widespread accurrence of Calotropis proocera (=Calotropis syriaca) in areas the ewes usually graze, a poisoning factor was suspected. This plant is commonly found around settlements in arid East Africa. Pegram (1,2) pointed ou
t its possible role as an abortifacient in goats. He stated that the plant flowers and withered leaves may be eaten by sheep and goats. This plant is known to be poisonous. Its latex as well as the bitter pulp of the fruit are reported to be abortifacient in humans (3). This Study was carried out to investigate the effect of feeding Calotropis procera on the development of pregnancy in ewes.

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Ethiopian Journal of Agricultural Sciences