EFFECT OF BLOOD INTRODUCTION ON THE FATTENING ABILITY OF PUREBRED PIGS AND CROSSBREEDS WITH DIFFERENT ORIGIN
Keywords:
Danube white, crosses, blood introduction, fattening abilityAbstract
In the Agricultural institute – Shumen a scientific experiment with fattening pigs from origins (Danube white), [♀Danube white x (♂English landrace x Pietrain)] and [♀Danube white x (English landrace x Pietrain) x ♂( Danish landrace)] was carried out. The fattening ability of 54 pigs, divided into three groups by 18 animals in each, was examined.
It was established that the consumed feed intake is less in crossbreeds ♀Danube white x (English landrace x Pietrain) x ♂ Danish landrace with 6.5% (P≤0.001) and ♀Danube white x ♂(English landrace x Pietrain) with 4.1% (P≤0.001) compared with purebred animals (Danube white). Traits: metabolizable energy, protein intake and lysine are with significantly lower values in pigs from the experimental groups.
The crossbreeds ♀Danube white x (English landrace x Pietrain) x ♂ Danish landrace and ♀Danube white x ♂(English landrace x Pietrain) significantly exceed purebred pigs (Danube white) regarding the traits average daily gain and feed conversion.
The differences between the three origins are statistically proved and indicate that crossbreeds like ♀Danube white x (English landrace x Pietrain) x ♂ Danish landrace, followed by ♀Danube white x ♂(English landrace x Pietrain) and purebreds (Danube white) are with the best expressed fattening ability.
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