تأثیر اخته کردن بر ویژگی‌های کیفی گوشت در عضله بایسپس فموریس بزغاله‌های مرخز

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه رازی کرمانشاه- دانشکده علوم و مهندسی کشاورزی- گروه علوم دامی

2 دانشگاه رازی کرمانشاه - دانشکده کشاورزی - گروه علوم دامی

چکیده

اثر اخته کردن بر ترکیب بافتی ناحیه ران و ویژگی­های کیفی گوشت در عضله بایسپس فموریس بزغاله­های نر نژاد مرخز در قالب یک طرح کاملاً تصادفی شامل دو تیمار و چهار تکرار بررسی شد. بدین منظور 16 رأس بزغاله نر نژاد مرخز به مدت 119 روز با جیره آزمایشی تغذیه شد و اخته کردن بزغاله­ها در تیمار مربوطه یک هفته قبل از آغاز دوره سازگاری انجام گرفت. نتایج نشان داد که شاخص عضلانی بودن ناحیه ران در بزغاله­های گروه کنترل بیش از گروه اخته شده بود (05/0P<). درصد رطوبت در گوشت بزغاله­های اخته شده کمتر و درصد چربی بیشتر از بزغاله­های اخته نشده بود (05/0P<). در عضله بایسپس فموریس بزغاله­های اخته درصد اسید پالمیتیک بیشتر و درصد مجموع اسیدهای چرب مطلوب و نسبت (C18:0+C18:1)/C16:0 کمتر از بزغاله­های اخته نشده بود (05/0P<). نتایج تحقیق نشان داد که اخته کردن بزغاله­های مرخز برای مصرف گوشت آن توسط انسان، از نظر مقدار و ترکیب اسیدهای چرب، قابل توجیه نیست.

کلیدواژه‌ها


عنوان مقاله [English]

Effects of castration on meat quality attributes in the Biceps femoris muscle of male Morkhoz goat kids

نویسنده [English]

  • Reza Naseri Harsini 1
1 Young Researchers and Elite Club ,Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
چکیده [English]

Effects of castration of male Morkhoz kids on quality characteristics of biceps femoris muscle and tissues composition of thigh were studied based on a completely randomized design (2 treatments and 4 replicates). Sixteen males were fed for 119 days and kids in the second treatment were castrated one week prior to the adaptation period. Results showed that muscularity in the femur region was significantly higher in the control (intact) group (P<0.05). Morkhoz kids castration decreased moisture and increased fat percentages (P<0.05). Castration significantly increased palmitic acid percentage and declined total desirable fatty acids percentage and (C18:0+C18:1)/C16:0 ratio in intramuscular fat of the biceps femoris muscle (P<0.05). Results showed that Morkhoz kids castration, with respect to the amount and composition of fatty acids, wouldn’t be compatible with human health.

کلیدواژه‌ها [English]

  • castration
  • chemical composition
  • Fatty acid composition
  • Femur components
  • Physical attributes
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