THE EFFECT OF BIOTECHNIQUE ON THE NUMBER OF LIVE BORN AND INTRAPARTALSTILLBORN PIGLETS DEPENDING ON THE BODY CONDITION AND PARITY OF THE SOW

In a single large Pig production unit of 6000 breeding sows, seven gro ups of 100 sows each were formed at random on the 110th day of pregnan cy. Each group was evaluated and divided according to body condition i n three subgroups. The average parity in each subgroup was recorded. T he groups were treated as follows: Group 1 Received on the 113th day o f pregnancy a 3 mg single intramuscular dose of alfaprostol. Group 2 r eceived on the 113th day of pregnancy a 3 mg single intramuscular dose of alfaprostol, 24 hours later a single intramuscular dose of 10 IU o f oxytocin. Group 3 received a single intramuscular dose of 10 IU of o xytocin after the birth of the first piglet. Group 4 received on the 1 13th day of pregnancy a 100 mg single intramuscular dose of prednisolo n. Group 5 received on the 113th day of pregnancy a 0,2 mg single intr amuscular dose of carbamylcholin. Group 6 received from the 110th day of pregnancy food consisting of 12 % fiber, 3 kg per sow per day. Grou p 7 (control) received a 3 ml physiologic NaCl solution on the 114th d ay of pregnancy. The following parameter were evaluated: A: Number of live born piglets B: Number of intrapartal stillborn piglets As regard number of live born piglets no significant difference was seen betwee n the experimental groups (1-6) and the control group (7). On the othe r hand showed the experimental group 1, 2, 5 and 6 significant lower i ncidence of intrapartal stillbirth when compared to the control (group 7). Within the groups the tendency was seen, that the sows with highe r parity and body condition produced less numbers of live born and hig her numbers of intrapartal stillborn piglets.