<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The aim of the study was to determine meat quality in cockerels of two multipurpose breeds reared to different ages. The study involved 30 cockerels each of two native breeds: Yellowleg Partridge (Ż-33) and Rhode Island Red (R-11). The results showed that cockerels of the native breeds Rhode Island Red (R-11) and Yellowleg Partridge (Ż-33) represent a good starting material for niche production of poultry meat R-11 cockerels exhibited a better rate of weight gain and their carcasses had higher yellowness and redness values compared to Ż-33 birds. The carcasses of both cockerel breeds had lower breast and higher leg muscle percentage, and their meat contained more collagen and protein and less fat. As birds aged, body weight and abdominal fat percentage increased, and giblets percentage decreased in the cockerels of both breeds, whereas in the R-11 breed dressing percentage increased, leg bone percentage decreased, yellowness (a*) increased and redness (b*) decreased. Neither genotype nor slaughter age had a significant effect on chemical composition of the breast and leg muscles. In both breeds, the breast and leg muscle quality traits were more affected by age than genotype.</p></abstract>

The aim of the study was to determine meat quality in cockerels of two multipurpose breeds reared to different ages. The study involved 30 cockerels each of two native breeds: Yellowleg Partridge (Ż-33) and Rhode Island Red (R-11). The results showed that cockerels of the native breeds Rhode Island Red (R-11) and Yellowleg Partridge (Ż-33) represent a good starting material for niche production of poultry meat R-11 cockerels exhibited a better rate of weight gain and their carcasses had higher yellowness and redness values compared to Ż-33 birds. The carcasses of both cockerel breeds had lower breast and higher leg muscle percentage, and their meat contained more collagen and protein and less fat. As birds aged, body weight and abdominal fat percentage increased, and giblets percentage decreased in the cockerels of both breeds, whereas in the R-11 breed dressing percentage increased, leg bone percentage decreased, yellowness (a*) increased and redness (b*) decreased. Neither genotype nor slaughter age had a significant effect on chemical composition of the breast and leg muscles. In both breeds, the breast and leg muscle quality traits were more affected by age than genotype.

Effect of Age and Genotype of Native Breed Cockerels on Carcass and Meat Quality

Department of Poultry Breeding, National Research Institute of Animal Production

Department of Animal Molecular Biology National Research Institute of Animal Production

Annals of Animal Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Effect of Age and Genotype of Native Breed Cockerels on Carcass and Meat Quality"}

The aim of the study was to determine meat quality in cockerels of two multipurpose breeds reared to different ages. The study involved 30 cockerels each of...

Effect of Age and Genotype of Native Breed Cockerels on Carcass and Meat Quality

Online veröffentlicht: 01. Aug. 2020

Seitenbereich: 1113 - 1126

Eingereicht: 09. Okt. 2019

Akzeptiert: 14. Feb. 2020

DOI: https://doi.org/10.2478/aoas-2020-0022

Schlüsselwörter
slaughter cockerels, meat quality, native breeds

© 2020 Józefa Krawczyk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of Age and Genotype of Native Breed Cockerels on Carcass and Meat Quality

Online veröffentlicht: 01. Aug. 2020

Seitenbereich: 1113 - 1126

Eingereicht: 09. Okt. 2019

Akzeptiert: 14. Feb. 2020

DOI: https://doi.org/10.2478/aoas-2020-0022

Schlüsselwörterslaughter cockerels, meat quality, native breeds

© 2020 Józefa Krawczyk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Schlüsselwörter
slaughter cockerels, meat quality, native breeds