%0 Journal Article
%T THE EFFECT OF TEMPERATURE VARIATIONS ON THE EMBRYO-FETAL MORTALITY IN SWINE
%A LOREDANA HEBER
%A CORNELIA PETROMAN
%A DIANA MARIN
%J Lucr£¿ri £¿tiin£¿ifice : Management Agricol
%D 2009
%I 
%X Low temperatures (0-5 C) as well as high ones (25-27 C) have an influence on the main indicators that characterize embryo-foetal mortality for the reproductive sows. The conception rate through the recorded values (97,2-100%) regardless of the temperature inside the shelter is not surprising because it is known that the sow¡¯s ovules are fertilized at an almost 100% rate, but high temperatures (25-27 C) lead to a survival rate lower by 20.8% than the conception rate. High temperatures negatively influence pre-natal losses (26.3%) and at low temperatures (0-5 C) they reach values of 21.9%. Both low and high temperatures have an influence on the embryonic mortality rate; therefore the reproductive females must have a controlled environment for the full reproductive potential of the animal to be reached.
%K swine
%K reproduction
%K temperature
%K embryo-foetal mortality
%U http://www.usab-tm.ro/%5CPdf%5C2009%5Cxi2%5Cmanagement09_64.pdf