Selection assessment of productivity of pigs of foreign parentage

Abstract

The purpose. To determine productivity of pigs of foreign parentage and to generate in herd economically expedient genealogical groups of animals of the basic herd. Methods. Productive qualities of pigs of Irish parentage of breeds Landras and Yorkshire were studied according to demands [5] and some innovative methods. Processing of experimental data [6] was carried out. Results. Pedigree qualities of 238 sows of breed Landras and 270 of breed Yorkshire of Irish parentage are studied. It is fixed that the part of animals of leading group in breed Yorkshire makes 29,5, and in breed Landras — 24,6%. Average level of fertility of sows of breed Yorkshire in conditions non-pasture content is 10,3±0,53 piglets. Oscillation of fertility among different genealogical groups is within the limits of 9,9±0,25...10,8±0,31. Conclusions. The expediency of application of index procedure of determination of general breeding value of pigs and separate attributes of their productivity is confirmed.