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<p>The aim of the present study was to compare the proximate composition, fatty acid and amino acid profiles, and physicochemical properties of the breast (<i>Pectoralis major</i>,<i> PM</i>) muscle in female and male pheasants (<i>Phasianus colchicus</i>) raised in aviaries on a farm and slaughtered at 21, 23, and 25 weeks of age (10 females – hens and 10 males – roosters per age group). Both sex and slaughter age had a significant effect on the quality of the <i>PM</i> muscle. However, age influenced a higher number of the analyzed quality attributes. The <i>PM</i> muscle of female pheasants had lower (<i>P</i> ≤ 0.05) collagen content and higher (<i>P</i> ≤ 0.05) concentrations of MUFAs, vitamin A, and essential amino acids (EAAs). The values of the following parameters increased (<i>P</i> ≤ 0.05) with age: β-tocopherol content, fat content, the proportion of MUFAs, the MUFA/SFA ratio, and the nutritional quality indicators of intramuscular fat (IMF). The UFA/SFA and DFA/OFA ratios also tended to increase, whereas the concentrations of SFAs and cystine tended to decrease (<i>P</i> ≤ 0.05) with age. The results of this study indicate that, irrespective of the observed differences between the compared groups of pheasants, the meat of birds slaughtered at 21–25 weeks of age was characterized by high quality (low fat content and high protein content, high concentrations of EAAs, a favorable fatty acid ratio) and could be a viable alternative to other types of poultry meat.</p>

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The effect of sex and slaughter age on the quality of the breast muscle (Pectoralis major) in pheasants housed in aviaries

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月6日

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  • Tomasz Daszkiewicz,
  • Paweł Janiszewski

摘要

The aim of the present study was to compare the proximate composition, fatty acid and amino acid profiles, and physicochemical properties of the breast (Pectoralis major, PM) muscle in female and male pheasants (Phasianus colchicus) raised in aviaries on a farm and slaughtered at 21, 23, and 25 weeks of age (10 females – hens and 10 males – roosters per age group). Both sex and slaughter age had a significant effect on the quality of the PM muscle. However, age influenced a higher number of the analyzed quality attributes. The PM muscle of female pheasants had lower (P ≤ 0.05) collagen content and higher (P ≤ 0.05) concentrations of MUFAs, vitamin A, and essential amino acids (EAAs). The values of the following parameters increased (P ≤ 0.05) with age: β-tocopherol content, fat content, the proportion of MUFAs, the MUFA/SFA ratio, and the nutritional quality indicators of intramuscular fat (IMF). The UFA/SFA and DFA/OFA ratios also tended to increase, whereas the concentrations of SFAs and cystine tended to decrease (P ≤ 0.05) with age. The results of this study indicate that, irrespective of the observed differences between the compared groups of pheasants, the meat of birds slaughtered at 21–25 weeks of age was characterized by high quality (low fat content and high protein content, high concentrations of EAAs, a favorable fatty acid ratio) and could be a viable alternative to other types of poultry meat.