Importance of functional traits in pig rearing and breeding
The objective of this study was to review current trends for definition of breeding objectives and content of functional traits in pig breeding schemes, as well as their importance and benefits. Generally, the breeding goals are based on sire and dam line indexes and differentiated among breeding schemes (based on breeders and consumers preferences). Breeding goals are focused mainly on litter size, daily gain from birth to slaughter, meat percentage and feed conversion traits. The level of production traits reached the physiological conditions limit in many selection programs. Therefore, the current pig breeding goals should be oriented to ensure the requirements of production quality and costs saving principles. Recently, traits e. g. sows longevity and vitality of piglets seems to play an important role in the modern pig selection schemesConsidering the current trends, the breeding goals should include in addition to production traits, several functional traits, e. g. vitality and welfare traits to ensure sustainable pig production.
Krupová Zuzana, Ing., Ph.D.
Krupa Emil, Ing., Ph.D.
Žáková Eliška, Ing., Ph.D.
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