Breast meat quality in males and females of fast-, medium- and slow-growing chickens fed diets of 2 protein levels

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F21%3AN0000064" target="_blank" >RIV/00027014:_____/21:N0000064 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.psj.2021.01.020" target="_blank" >http://dx.doi.org/10.1016/j.psj.2021.01.020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.psj.2021.01.020" target="_blank" >10.1016/j.psj.2021.01.020</a>

Result language

angličtina

Original language name

Breast meat quality in males and females of fast-, medium- and slow-growing chickens fed diets of 2 protein levels

Original language description

The aim of this study was to evaluate the effects of genotype, sex, dietary protein level, and their interactions on select carcass characteristics and meat quality of fast- (Ross 308), medium- (Hubbard JA757) and slow-growing (ISA Dual) chickens (n = 2,520). The diet of the low-protein group of chickens had 6% lower CP than the commercial diet fed to the control group. When the chickens reached an average live weight of 2 kg, 10 males and 10 females of each genotype and the diet were selected for slaughter and breast meat-quality analysis. The dressing out and breast percentages were lower in the JA757 (-2.0 and -5.9%, respectively) and ISA Dual chickens (-9.9 and -14.3%, respectively) than those in the Ross 308 chickens. The ISA Dual chickens had higher abdominal fat percentage, higher DM and protein contents and lower ether extract content and shear force value in breast meat than the other genotypes. Significant interaction effects of genotype, sex, and diet were found on the color of breast skin. Among the various combinations of genotype, sex, and diet group, Ross 308 females fed the low-protein diet had the highest redness and yellowness of breast skin, highest pH45 value, and largest fibers, whereas ISA Dual females had the lowest color parameters and pH45 value, and ISA Dual males had the smallest muscle fibers. The low-protein diet was associated with decreased abdominal fat percentage and changes in meat quality parameters, including increased darkness, meat color intensity, drip loss, and muscle fiber area, in all genotypes. The results indicated greater differences in meat quality owing to genotype than to sex or dietary protein level.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Project

<a href="/en/project/QK1910387" target="_blank" >QK1910387: Quality and safety meat of chicken fed with insect meal, limited feed intake and pasture</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Poultry Science

ISSN

1525-3171

e-ISSN

—

Volume of the periodical

100

Issue of the periodical within the volume

4

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

Article Number: 100997

UT code for WoS article

000637971600035

EID of the result in the Scopus database

2-s2.0-85101379100