The effects of season and rearing systems on meat quality traits
| Autor: | Vera Radović, Snezana Bogosavljevic-Boskovic, Sreten Mitrovic, Vladimir Doskovic |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
0301 basic medicine
Veterinary medicine animal structures 030109 nutrition & dietetics Applied Mathematics General Mathematics animal diseases media_common.quotation_subject Spring season Broiler 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences Biology 040201 dairy & animal science Summer season Toxicology 03 medical and health sciences Animal science Lipid content Animal Science and Zoology Quality (business) media_common |
| Zdroj: | Czech Journal of Animal Science. 51:369-374 |
| ISSN: | 1805-9309 1212-1819 |
| DOI: | 10.17221/3953-cjas |
| Popis: | With the aim to examine the effect of season and rearing system on major broiler meat quality traits appropriate experimental investigations were conducted. Trial material included a total of 800 one-day-old broilers of the Hybro line hybrid. The experiment was organized in two replications, as trial I (conducted in the spring season) and trial II (conducted in the summer season). Two broiler fattening methods were employed, the intensive and semi-intensive one (using free-range rearing). The experimental chicks were slaughtered after seven weeks of fattening. Following the fattening period, 60 broilers (30 broilers from each experimental group) were chosen at random and slaughtered, with the aim of examining major broiler meat quality traits. At the slaughter line, determination of meat quantitative traits was done accompanied by sampling for chemical analyses. The rear - ing systems (intensive and semi-intensive system) affected significantly ( P 0.05). The broilers reared under the semi-intensive system had a 1.44% higher proportion of muscular tissue on average than the intensively reared ones ( P 0.05). The broilers reared semi-intensively had a statistically highly significantly higher protein proportion (P < 0.01) in breasts, drumsticks and thighs compared to the intensively reared broilers. The broilers reared in the summer season had higher breast and drumstick proportions ( P < 0.01) as well as a higher thigh proportion (P < 0.05). The effect of both the season and the rearing system on the lipid content in the breasts, thighs and drumsticks was statistically highly significant ( P < 0.01). The lipid content in the breasts, thighs and drumsticks was higher in the broilers during the summer season as well as in the intensively reared chicken. Finally, having thoroughly examined the research results, or more precisely, considering the established advantages in terms of the meat quality, the use of the free-range broiler rearing system can be deemed scientifically and professionally justifiable. |
| Databáze: | OpenAIRE |
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