COMPARATIVE-STUDY ABOUT THE INFLUENCE OF PARASYMPATHOMIMETIC SUBSTANCES ON PERINATAL PARAMETER OF THE SOW DEPENDING ON THE BODY CONDITION AND PARITY, BY DIFFERENT WAYS OF APPLICATION

In a modern pig production unit four groups of 50 sows each were forme d at random before parturition. Each group was evaluated and divided a ccording to body condition and parity into three subgroups. The groups were treated as follows: Group 1 received from the 100th untill the 1 14th day of pregnancy 10 mg Trichlorvos/kg body weight per os. Group 2 received on the 113th and 114th day of pregnancy 20 mg Trichlorvos/kg body weight per os. Group 3 received a single intramuscular dose of 0 ,2 mg Carbamylcholin after the birth of the first piglet. Group 4 untr eated control. The following parameter were evaluated: A = Duration of farrowing B = Number of live born piglets C = Number of intrapartal s tillborn piglets D = MMA complex The results were evaluated in subgrou ps, according to the body condition of the sow (regular, moderately fa t, fat). As regards parameter A, B and C - in spite of a few significa nt differences between the corresponding subgroups of each group - the re was no major significance between the groups. As regards parameter D showed all treatment groups marked better results when compared to t he control. In contrast to the results between the groups, there was s ignificant better performance in all parameter in the subgroups of sow s of regular condition when compared to the subgroups of fat sows with in a group. This suggests, that not the way of application, but the bo dy condition (and parity) has major influence on all perinatal paramet ers of the sow after prefarrowing application of a parasympathomymetic agent.