The study was conducted to evaluate the influence of the rearing system on the muscle fibre characteristics of two meat chicken breeds such as the Ross and the Livorno characterized by extremely fast and extremely slow growth speed respectively. No differences between the breeds were found in the conventional rearing system except for muscle fibre area. On the other hand, in the free range rearing system, differences in muscle fibre composition were evidenced between the breeds especially in the Ileotibialis lateralis muscle with the Livorno having a greater percentage of aR fibres (57,71 vs 36,65). A higher percentage of aR fibres (57,71 vs 46,90) was found in the Ileotibialis laterali~ of the free range reared Livorno chickens compared to the conventionally reared ones.
Effetto della tipologia di allevamento sulle caratteristiche delle fibre muscolari di razze di pollo a diversa velocita' di accrescimento
BRANCIARI, Raffaella;MAMMOLI, Roberta;MIRAGLIA, DINO;RANUCCI, David;CIOFFI, ATTILIA;AVELLINI, Paolo
2009
Abstract
The study was conducted to evaluate the influence of the rearing system on the muscle fibre characteristics of two meat chicken breeds such as the Ross and the Livorno characterized by extremely fast and extremely slow growth speed respectively. No differences between the breeds were found in the conventional rearing system except for muscle fibre area. On the other hand, in the free range rearing system, differences in muscle fibre composition were evidenced between the breeds especially in the Ileotibialis lateralis muscle with the Livorno having a greater percentage of aR fibres (57,71 vs 36,65). A higher percentage of aR fibres (57,71 vs 46,90) was found in the Ileotibialis laterali~ of the free range reared Livorno chickens compared to the conventionally reared ones.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
