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Online Journal of Veterinary Research©
Volume 22 (8):727-735, 2018....
Effect of caponization on muscle, liver and adipose tissue fatty acid composition,
lipid peroxidation, and cholesterol in breast muscle of Cobb 500 broilers.
TK Leo MSc1, M Ebrahimi PhD2,3, U Kaka DVM PhD4, J Abu DVM PhD5, A Kasim DVM PhD1, SS Loo MSc6,
KS Lai PhD7, SA Karsani PhD8, YM Goh DVM PhD2,4, AQ Sazili DVM PhD1,4
1Department(s) of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, 2Veterinary Pre-Clinical Science, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Selangor, Malaysia. 3Department of Cell & Molecular Biology, Faculty of Life Sciences & Biotechnology, Shahid Beheshti University G.C., Evin, Tehran, Iran. 4Laboratory of Sustainable Animal Production and Biodiversity, Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 5Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 6Agro-Biotechnology Institute Malaysia, 7Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia. 8Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.
Leo TK, Ebrahimi M, Kaka U, Abu J, Kasim A, Loo SS, Lai KS, Karsani SA, GOH YM, Sazili AQ., Effect of caponization on muscle, liver and adipose tissue fatty acid composition, lipid peroxidation, and cholesterol in breast muscle of Cobb 500 broilers, Onl J Vet Res., 22 (8):727-735, 2018. Capon is the surgical removal of testes from roosters which promotes the accumulation of intramuscular fat and affects fatty acid composition of poultry meat. We report effect of caponization on muscle, liver and adipose tissue fatty acid composition, lipid peroxidation and cholesterol content in breast muscle of broilers. Groups of 30 male 1-d old commercial Cobb 500 broilers were caponized at 21 days of age. Controls were 30 intact birds. Each treatment group consisted of 6 replicates (cages) with 5 birds in each cage. Broilers were fed commercial feed and slaughtered at 40 days. Major fatty acids in breast muscle and adipose tissue were oleic (C18:1, n-9), palmitic (C16:0) and linoleic (C18:2, n-6) and stearic (C18:0). Caponization did not affect fatty acid composition of muscle, liver or adipose tissues or lipid peroxidation of meat. However, we did find lower (P < 0.018) cholesterol (0.66 ± 0.02mg/ml) in breast muscle from caponized birds (n=9) compared with 9 intact controls (0.77 ± 0.04mg/ml). Our findings suggest that caponization does not affect free fatty acid composition or lipid peroxidation but may reduce cholesterol in tissues of broilers.
KEYWORDS Broiler chickens, caponization, fatty acid composition, cholesterol. Raw data provided.