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50 Pleven Blackhead ewes aged 10-12 months and weighing 40-48 kg were analysed between November and December. Prior to the experiment, all animals from the herd were submitted to transabdominal echographic study with Aloka SSD 500 Micrus equipment and 5 MHz linear transducer and pregnant sheep were ...

Bonev, G. B.; Vassilev, N. Y.; Dimitrov, M. A.; Yotov, S. A.; Penchev, P.
Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
Bulgarian Journal of Veterinary Medicine, 2006, 9, 1, pp 61-65