Francisco Blanco - Academia.edu (original) (raw)

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Papers by Francisco Blanco

Data from 180 bulls from Charolais, Limousine and Retinta breeds were used to evaluate image anal... more Data from 180 bulls from Charolais, Limousine and Retinta breeds were used to evaluate image analysis of cross-sections as method of predicting the physical composition of the 10th-11th-12th rib-cut. The site along the longissimus thoracis muscle (between either the 9th and10th ribs or the 12th and 13th ribs), and the breed had significant influence on most of the variables analyzed. The correlation coefficients between the rib composition obtained by image analysis and by dissection were low to moderate (r=0.18-0.59, P<0.01-P<0.001). The R(2) values of the composition components of the 12th-13th rib cross-section to 10th-11th-12th rib-cut composition were higher than those recorded from the 9th-10th rib cross-section (R(2)=0.535 to 0.759 vs. 0.148 to 0.502). The accuracy of the predictions of lean, longissimus thoracis m. and bone percentages improved significantly with the addition of carcass weight. Results indicate that image analysis can predict rib composition in lean cattle with moderate accuracy and precision.

Proceedings of The Edinburgh Mathematical Society, 2007

We work with interpolation methods for N-tuples of Banach spaces associated with polygons. We com... more We work with interpolation methods for N-tuples of Banach spaces associated with polygons. We compare necessary conditions for interpolating closed operator ideals with conditions required to interpolate compactness. We also establish a formula for the measure of non-compactness of interpolated operators.

ABSTRACT This study aimed to evaluate the predictive ability of ultrasound at different ages base... more ABSTRACT This study aimed to evaluate the predictive ability of ultrasound at different ages based on the 10th-11th-12th rib-cut composition. Ultrasound measurements at different times of the finishing period and 10th-11th-12th rib-cut composition were measured on 163 bulls of three European beef breeds (Charolais, n=55; Limousine, n=55; Retinta, n=53). Ultrasound measurements (area and intramuscular fat percentage of the longissimus thoracis muscle, 12th-rib fat thickness, rump fat thickness, and gluteus medius depth) were taken every 30±5 days until slaughter (approximately at 180, 150, 120, 90, 60, 30, and 1–7 days before slaughter). Correlation and determination coefficients between ultrasound measurements and rib-cut composition were low-medium. The regression equations, developed from the live ultrasound measurements explained 45%, 43%, 35%, 35%, 35% and 36% of the variation in total lean, longissimus thoracis muscle, fat (total, subcutaneous and intermuscular) and bone percentages obtained by dissection of 10th-11th-12th rib-cut, respectively, and 34% in intramuscular fat determined by ether extract analysis of 12th rib. The predictive precision of ultrasonic measurements increased as animals approached slaughter, reaching maximum values at the last scan. When data from two or more scans were included, the last scan could be advanced in at least 30 days under the conditions of this experiment.

Data from 180 bulls from Charolais, Limousine and Retinta breeds were used to evaluate image anal... more Data from 180 bulls from Charolais, Limousine and Retinta breeds were used to evaluate image analysis of cross-sections as method of predicting the physical composition of the 10th-11th-12th rib-cut. The site along the longissimus thoracis muscle (between either the 9th and10th ribs or the 12th and 13th ribs), and the breed had significant influence on most of the variables analyzed. The correlation coefficients between the rib composition obtained by image analysis and by dissection were low to moderate (r=0.18-0.59, P<0.01-P<0.001). The R(2) values of the composition components of the 12th-13th rib cross-section to 10th-11th-12th rib-cut composition were higher than those recorded from the 9th-10th rib cross-section (R(2)=0.535 to 0.759 vs. 0.148 to 0.502). The accuracy of the predictions of lean, longissimus thoracis m. and bone percentages improved significantly with the addition of carcass weight. Results indicate that image analysis can predict rib composition in lean cattle with moderate accuracy and precision.

Data from 180 bulls from Charolais, Limousine and Retinta breeds were used to evaluate image anal... more Data from 180 bulls from Charolais, Limousine and Retinta breeds were used to evaluate image analysis of cross-sections as method of predicting the physical composition of the 10th-11th-12th rib-cut. The site along the longissimus thoracis muscle (between either the 9th and10th ribs or the 12th and 13th ribs), and the breed had significant influence on most of the variables analyzed. The correlation coefficients between the rib composition obtained by image analysis and by dissection were low to moderate (r=0.18-0.59, P<0.01-P<0.001). The R(2) values of the composition components of the 12th-13th rib cross-section to 10th-11th-12th rib-cut composition were higher than those recorded from the 9th-10th rib cross-section (R(2)=0.535 to 0.759 vs. 0.148 to 0.502). The accuracy of the predictions of lean, longissimus thoracis m. and bone percentages improved significantly with the addition of carcass weight. Results indicate that image analysis can predict rib composition in lean cattle with moderate accuracy and precision.

Proceedings of The Edinburgh Mathematical Society, 2007

We work with interpolation methods for N-tuples of Banach spaces associated with polygons. We com... more We work with interpolation methods for N-tuples of Banach spaces associated with polygons. We compare necessary conditions for interpolating closed operator ideals with conditions required to interpolate compactness. We also establish a formula for the measure of non-compactness of interpolated operators.

ABSTRACT This study aimed to evaluate the predictive ability of ultrasound at different ages base... more ABSTRACT This study aimed to evaluate the predictive ability of ultrasound at different ages based on the 10th-11th-12th rib-cut composition. Ultrasound measurements at different times of the finishing period and 10th-11th-12th rib-cut composition were measured on 163 bulls of three European beef breeds (Charolais, n=55; Limousine, n=55; Retinta, n=53). Ultrasound measurements (area and intramuscular fat percentage of the longissimus thoracis muscle, 12th-rib fat thickness, rump fat thickness, and gluteus medius depth) were taken every 30±5 days until slaughter (approximately at 180, 150, 120, 90, 60, 30, and 1–7 days before slaughter). Correlation and determination coefficients between ultrasound measurements and rib-cut composition were low-medium. The regression equations, developed from the live ultrasound measurements explained 45%, 43%, 35%, 35%, 35% and 36% of the variation in total lean, longissimus thoracis muscle, fat (total, subcutaneous and intermuscular) and bone percentages obtained by dissection of 10th-11th-12th rib-cut, respectively, and 34% in intramuscular fat determined by ether extract analysis of 12th rib. The predictive precision of ultrasonic measurements increased as animals approached slaughter, reaching maximum values at the last scan. When data from two or more scans were included, the last scan could be advanced in at least 30 days under the conditions of this experiment.

Data from 180 bulls from Charolais, Limousine and Retinta breeds were used to evaluate image anal... more Data from 180 bulls from Charolais, Limousine and Retinta breeds were used to evaluate image analysis of cross-sections as method of predicting the physical composition of the 10th-11th-12th rib-cut. The site along the longissimus thoracis muscle (between either the 9th and10th ribs or the 12th and 13th ribs), and the breed had significant influence on most of the variables analyzed. The correlation coefficients between the rib composition obtained by image analysis and by dissection were low to moderate (r=0.18-0.59, P<0.01-P<0.001). The R(2) values of the composition components of the 12th-13th rib cross-section to 10th-11th-12th rib-cut composition were higher than those recorded from the 9th-10th rib cross-section (R(2)=0.535 to 0.759 vs. 0.148 to 0.502). The accuracy of the predictions of lean, longissimus thoracis m. and bone percentages improved significantly with the addition of carcass weight. Results indicate that image analysis can predict rib composition in lean cattle with moderate accuracy and precision.