کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5543414 1554069 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Estimation of the intramuscular fat content of m. longissimus thoracis in crossbred beef cattle based on live animal measurements
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Estimation of the intramuscular fat content of m. longissimus thoracis in crossbred beef cattle based on live animal measurements
چکیده انگلیسی
The objective of this study was to determine the usefulness of live animal measurements in estimating the intramuscular fat (IMF) content of m. longissimus thoracis (MLT) in beef cattle. Live animal measurements were performed in young crossbred bulls (96) and steers (59), the offspring of Holstein-Friesian (HF) cows and beef bulls (Limousin, Hereford and Charolais), at the end of the fattening period. The content of intramuscular fat was determined in samples from MLT by chemical analyses. A prediction model was developed by stepwise regression. In the validation model, the values of R2 = 0.74, RMSE = 0.37% were determined. The results indicate that selected biometric (chest width, chest girth) ultrasound measurements (thickness of subcutaneous rump and back fat) and selected blood parameters (triglycerides) can be used to predict IMF content with satisfactory precision and accuracy. The analyzed parameters could constitute a valuable tool in the process of selecting beef quality traits and determining the slaughter value of young beef cattle.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Meat Science - Volume 125, March 2017, Pages 121-127
نویسندگان
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