ترکیب اسید چرب داخل عضلانی ماهیچه Longissimus گوساله‌های از شیر گرفته نشده نژاد Minhota در سن کشتار متفاوت
Subject Areas : Camelجی.پی. آرایجو 1 , پی. پیرس 2 , جی.ل. سرکواِیرا 3 , م. باروس 4 , ت. مورنو 5
1 - Centro de Investigação de Montanha, Instituto Politécnico de Viana do Castelo, Portugal|Escola Superior Agrária do Instituto Politécnico de Viana do Castelo, Refóios do Lima, 4990‐706 Ponte de Lima, Portugal
2 - Escola Superior de Tecnologia e Gestão do Instituto Politécnico de Viana do Castelo, Avenida do Atlântico, 4900‐348 Viana do Castelo, Portugal|CISAS, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun´Álvares, 4900-347, Viana do Castelo, Portugal
3 - Escola Superior Agrária do Instituto Politécnico de Viana do Castelo, Refóios do Lima, 4990‐706 Ponte de Lima, Portugal|Centro de Ciência Animal e Veterinária (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
4 - Escola Superior de Tecnologia e Gestão do Instituto Politécnico de Viana do Castelo, Avenida do Atlântico, 4900‐348
Viana do Castelo, Portugal
5 - Departamento de Producción Animal, Centro de Investigaciones Agrarias de Mabegondo, Apdo 10, 15080 A Coruña, Spain
Keywords: گوشت, اسیدهای چرب, کیفیت گوشت, گوشت گوساله, خوراک سالم,
Abstract :
محصولات گوشتی از 16 نژاد گاو پرتقالی ارزش اقتصادی و فرهنگی بالایی برای جمعیت‌های بومی نشان می‌دهد. در این میان، Minhota یکی از مهمترین‌ها در توانایی تولید گوشت واقع در شمال غربی کشور است. این نژاد برای کیفیت گوشت بالا استفاده می‌شود. این مطالعه تاثیر سن کشتار، گوشت گوساله (6 ماهه) و گاو (9 ماهه) و جنس، پرورش یافته در سیستم تولید سنتی، روی ترکیب اسید چرب داخل عضلانی ماهیچه longissimus و کیفیت تغذیه را شرح می‌دهد. نمونه‌هایی از ماهیچهlongissimus thoracis برای ترکیب اسید چرب چربی درون ماهیچه‌ای از 41 گاو نژاد Minhota آنالیز شدند. گوساله شیرگیری نشده (22) و گاو (19)، مربوط به نرها (n=25) و ماده‌ها (n=16) آنالیز شدند. هر دو گروه از حیوانات در یک سیستم تولیدی سنتی پرورش یافته‌اند. گوشت نژاد Minhota یک منبع ارزشمند از اسیدهای چرب غیر اشباع، خصوصاً اسیدهای چرب C-20 و C-22 n-3 در جیره انسانی است. یک نسبت n-6:n-3 پایین نشان می‌دهد که چربی در این نژاد ارزش تغذیه‌ای خوبی دارد. تفاوت‌ها در ترکیب چربی از گوساله و گاو می‌تواند به این واقعیت که مکیدن مادری (maternal suckling) در حیوانات جوان‌تر مهم‌تر است نسبت داده شود.
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