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.: Home > Animal Science Papers and Reports > 2011 > Volume 29 Number 2 > Katarzyna Po³towicz*, Joanna Doktor

Effect of free-range raising on performance, carcass attributes and meat quality of broiler chickens

Katarzyna Po³towicz*, Joanna Doktor
National Research Institute of Animal Production, Krakowska 1, 32-083 Balice, Poland
Abstract :

The aim of the study was to determine the effect of free-range raising system on production results
and carcass and meat quality of broiler chickens aged 42 days, using fast growing Ross 308 line.
Day-old chicks were randomly assigned to two groups, 120 birds in each. Group I throughout
rearing remained indoors on deep litter while Group II was kept at free range. Production results,
carcass quality, physico-chemical traits of breast and leg muscles (pH15min and pH24h, L*a*b* colour
space, water-holding capacity, drip loss, thermal loss, and shear force) were determined. Housing
system affected the rearing performance of birds. Higher body weight and lower mortality were
characteristic of Group I. Rearing system had no effect on dressing percentage, carcass colour and
carcass quality. The majority of physico-chemical parameters of breast and leg muscles were similar
in both groups.

Keywords :
broiler chickens / carcass / free-range / meat quality

Date Deposited : 21 Jun 2011 16:12

Last Modified : 21 Jun 2011 16:12

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Volume 29, Number 2, - 2011

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