COMPARISON OF REPRODUCTIVE PERFORMANCE IN TWO OLD BREED PIGS BREEDS IN ROMANIA AND BULGARIA

G.V. Hoha, Nadezhda Palova, A.Al. Casapu, R. Arsinte, Elena Costăchescu, B. Păsărin

Abstract
   Reproduction characteristics of the two old breed pigs, Mangalita from Romania and East Balkan from Bulgaria were monitored over a three-year period (2015-2018). The reproduction characteristics: age and the weight at the first insemination; age at farrowing; duration of gestation; duration of lactation and prolificity from 20 sows of 2 litters were analyzed and compared. The results recorded for each parameters was: 530.42 vs 450.25 days for age at the first insemination; 112.52 vs. 90.45 kg for weight at the first insemination; 645.1 vs 563.7 days for age at farrowing; 114.7 vs 113.4 days for duration of pregnancy; 52.6 vs 59.2 days for duration of lactation; 5.62 vs 4.95 piglets at first birth; 6.28 vs 6.15 piglets at second birth. The obtained results confirm the data from the literature mentioning that the two breeds are tardiv. We also notice that the Mangalita breed is more tardiv than the East Balkan breed but has a higher weight at first insemination and a higher prolificity.

Key words: breeds, pigs, performance, reproduction