@inproceedings{inproceedingsb3b39510,
title   = {Evaluation of ultrasonography on early gestation diagnosis in sows},
author = {Viana, C. H. C and Gama, R. D and Vianna, Wagner Loesch and Alvarenga, M. V. F and Barnabe, Renato Campanarut},
year = {2002},
booktitle   = {Congress of the International Pig Veterinary Society}
}