Volume: 2, 2023
2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: A013
DOI: https://doi.org/10.24326/ICDSUPL2.A013
Published online: 19 April 2023
ICDSUPL, 2, A013 (2023)
Fatty acid profile of broilers pectoralis major muscle affected by myopathy
Egle Lebednikaite1*, Jolita Klementaviciute2, Elena Bartkiene2, Dovile Klupsaite2, Ernestas Mockus2, Lina Anskiene3, Zana Balciauskiene4, Alius Pockevicius1
1 Department of Veterinary Pathobiology, Faculty of Veterinary Medicine, Lithuanian University of Health Sciences, Tilzes 18, 47181, Kaunas, Lithuania
2 Institute of Animal Rearing Technologies, Faculty of Animal Science, Lithuanian University of Health Sciences, Tilzes 18, 47181, Kaunas, Lithuania
3 Department of Animal Breeding, Faculty of Animal Science, Lithuanian University of Health Sciences, Tilzes 18, 47181, Kaunas, Lithuania
4 Vilnius Department of the State Food and Veterinary Service, Konstitucijos 23b, 08105, Vilnius, Lithuania
* Corresponding author: egle.lebednikaite@lsmu.lt
Abstract
Poultry meat has relatively high concentrations of essential fatty acids (FA). The FA profile of poultry meat could be influenced by age, gender, genotype, or feeding of broilers. Wooden breast (WB), which is often accompanied by white striping (WS), is a myopathy, which influences meat quality of broilers. The aim of this study was to determine the effect of m. pectoralis major myopathy on FA composition in chicken breast meat. Samples were taken from pectoralis major muscle of Ross 308 broilers, 41 days old, with a live weight 2.45-2.60 kg. The muscle samples, without bone and skin, were collected from broilers with varying WB+WS severity scores: 0 = normal; 1 = mild; 2 = severe (n=6, of each group). After being classified and collected, the samples were weighed individually, packed in identical bags and transported to the laboratory under refrigeration conditions (±4°C). Samples were frozen (–20°C) until further analysis; chemical analyzes were performed on all chicken breast samples collected. FA composition was determined using gas chromatograph GC-2010 Plus (Shimadzu corp.) equipped with Mass Spectrometer GCMS-QP2010 (Shimadzu corp.). IBM SPSS 29.0 Statistics software was used for the statistical analysis. Mean differences between groups were analyzed using the Student’s T-test. Statistical significance was considered at P≤0.05. Total eleven different FA were determined in m. pectoralis major of broilers. Analysis of FA profile showed that myristic acid and oleic acid amounts were higher in m. pectoralis major affected by myopathy (severe and mild) compared to m. pectoralis major without myopathy (normal) (0.26% and 0.20% vs 0.04%, P≤0.01) and (32.30% and 32.05% vs 30.84%, P≤0.05). Palmitoleic acid amount was higher in m. pectoralis major affected by myopathy (severe and mild) compared to m. pectoralis major without myopathy (normal) (2.82% and 3.21% vs 2.46%, P≤0.05). However, amount of stearic acid was lower in m. pectoralis major affected by myopathy (severe and mild) compared to m. pectoralis major without myopathy (normal) (7.43% and 7.59% vs 9.04%, P≤0.05). In conclusion, our study revealed that WB and WS myopathy may affect FA composition of m. pectoralis major of broilers: myristic, oleic and palmitoleic acid contents were higher in breast meat of broilers, which are affected by myopathy, but stearic acid content showed opposite tendency and was lower.
How to cite
E. Lebednikaite, J. Klementaviciute, E. Bartkiene, D. Klupsaite, E. Mockus, L. Anskiene, Z. Balciauskiene, A. Pockevicius, 2023. Fatty acid profile of broilers pectoralis major muscle affected by myopathy. In: 2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL2.A013