Ultrasonic Scanning and Body Measurements for Predicting Composition and Muscle Distribution in Young Holstein × Friesian Bulls

1986 ◽  
Vol 63 (5) ◽  
pp. 1337-1346 ◽  
Author(s):  
Curtiss M. Bailey ◽  
Just Jensen ◽  
B. Bech Andersen
Keyword(s):  
Body Measurements ◽  
Ultrasonic Scanning ◽  
Holstein Friesian

scholarly journals Prediction of the Carcass Value of Young Holstein-Friesian Bulls Based on Live Body Measurements

2014 ◽  
Vol 14 (2) ◽  
pp. 429-439 ◽  
Author(s):  
Paulina Pogorzelska-Przybyłek ◽  
Zenon Nogalski ◽  
Zofia Wielgosz-Groth ◽  
Rafał Winarski ◽  
Monika Sobczuk-Szul ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Multiple Regression ◽  
Live Weight ◽  
Longissimus Dorsi ◽  
Regression Equations ◽  
Body Measurements ◽  
Independent Variables ◽  
Holstein Friesian ◽  
Ultrasound Measurements ◽  
Chest Girth

Abstract The aim of this study was to determine the suitability of ultrasound and zoometric measurements and visual muscle scoring for predicting the carcass value of 167 young Holstein-Friesian (HF) bulls. Zoometric and ultrasound measurements were performed and live muscle scoring was estimated before slaughter. After slaughter, hot carcass weight (HCW) was determined and carcasses were assigned to conformation and fat classes according to the EUROP system. Multiple regression equations were derived to estimate the weight, conformation and fatness of carcasses. HCW was estimated using the following equations: Ŷ = 1.507x1 + 1.103x2 + 4.043x3 + 5.53x4 + 0.379x5 + + 8.076x6 - 678.93 (R2=0.892; Sy = 16.28) and Ŷ = 2.525x4 + 0.579x7 + 0.451x8 - 134.17 (R2=0.943; Sy = 11.84); independent variables x1 - height at sacrum (cm); x2 - chest girth (cm); x3 - pelvic width (cm); x4 - pelvic length (cm); x5 - thickness of M. gluteo-biceps (mm); x6 - intravital muscle scoring (points); x7 - thickness of M. longissimus dorsi (mm); x8 - live weight (kg). Validation of the first regression equation revealed overestimation of HCW by 1.25% on average, while validation of the second equation revealed its underestimation by 1.85% on average. It was found that intravital muscle scoring and selected ultrasound and zoometric measurements of HF bulls can be used in formulating regression equations for predicting the carcass value of live animals. The proposed models enable predicting the carcass value of young bulls with satisfactory accuracy, thus contributing to an objective live beef cattle assessment

scholarly journals Vergleich von vier Merkmalen innerhalb der 50-Punkte-Exterieurbeurteilung mit den erfassten Körpermaßen bei Holstein-Friesian Kühen

2001 ◽  
Vol 44 (1) ◽  
pp. 33-46
Author(s):  
J. Püski ◽  
S. Bozó ◽  
I. Györkös ◽  
A. Gáspárdy ◽  
E. Szücs
Keyword(s):  
Correlation Coefficients ◽  
The Body ◽  
Body Measurements ◽  
Body Measurement ◽  
Typing Method ◽  
Body Depth ◽  
Average Value ◽  
Holstein Friesian ◽  
The Individual ◽  
Large Animals

Abstract. Title of the paper: Comparison of the conformation scoring and the body measurement based on four linear traits of Holstein Friesian cows The goal was evaluate the similarity of the body scoring System and the body measurement kept generally for the best objective method. The target-traits (withers height, body depth, rump width at the gluteal tuberosity and body capacity) of Holstein Friesian heifers were taken down. Three-three groups (−extreme, medium, +extreme) based on the Standard deviation of the body measurements were created and compared in each traits, as well as phenotypic relationships (regression and correlation) were calculated. Taking the relationships into consideration it appeared that the body measurements do not stand in such a close connection with each other than it is suggested by the scoring. The pair-wise correlation coefficients between the values of the same traits taken down by scoring and measuring Systems can by seen as low figures (r = 0.71, 0.50, 0.43 and 0.59, respectively) since we have the same traits. The partial correlation coefficients are even more less than the pair-wise correlation coefficients, and statistically confirmed only by the height at wither. Except the height at wither, there were no demonstrable connections in the regression of the same traits, just then, exclusively the true height at wither influenced the classifier during the scoring of all the traits. The differences between the type groups were smaller in each traits estimated by scoring. From the analysis of the type groups it is obvious that the similarity of the two methods is the biggest in the height at wither. In the case of body depth, rump width and body capacity the classifier can distinguish only the "very little" and "very large" animals from the judged population while the intermediate types remained unrecognised. The average value of the individual identity between the two typing method was around 35%.

scholarly journals Linear body measurements and productivity of subtropical Holstein–Friesian dairy calves

2020 ◽  
Vol 98 (7) ◽  
pp. 280-289
Author(s):  
A Hewitt ◽  
TWJ Olchowy ◽  
AS James ◽  
B Fraser ◽  
S Ranjbar ◽  
...  
Keyword(s):  
Dairy Calves ◽  
Body Measurements ◽  
Holstein Friesian ◽  
Linear Body

Correlations between weaning weight, carcass traits and ultrasonic body measurements in Welsh Mountain sheep

1998 ◽  
Vol 1998 ◽  
pp. 84-84 ◽  
Author(s):  
M. Saatci ◽  
I. Ap Dewi ◽  
Z. Ulutas
Keyword(s):  
Litter Size ◽  
Carcass Traits ◽  
Carcass Quality ◽  
Body Measurements ◽  
Production Traits ◽  
Ultrasonic Scanning ◽  
Breeding Group ◽  
Genetic And Phenotypic Correlations ◽  
Mature Size ◽  
Lamb Growth

Selection in the CAMDA breeding group for Welsh Mountain sheep has been based since the start of the scheme on an index that includes litter size, maternal ability, lamb growth and mature size. Since 1987 fat and muscle depths have also been recorded in candidate replacement rams by ultrasonic scanning. Current consumer pressure to improve carcass quality suggests that emphasis be placed on developing an index that incorporates scanning results with other production traits. Construction of such an index requires estimates of the genetic and phenotypic correlations between traits in the selection objectives and criteria. Analyses were conducted to estimate these parameters based on data recorded in the nucleus of the CAMDA breeding group.

Correlations between weaning weight, carcass traits and ultrasonic body measurements in Welsh Mountain sheep

1998 ◽  
Vol 1998 ◽  
pp. 84-84
Author(s):  
M. Saatci ◽  
I. Ap Dewi ◽  
Z. Ulutas
Keyword(s):  
Litter Size ◽  
Carcass Traits ◽  
Carcass Quality ◽  
Body Measurements ◽  
Production Traits ◽  
Ultrasonic Scanning ◽  
Breeding Group ◽  
Genetic And Phenotypic Correlations ◽  
Mature Size ◽  
Lamb Growth

Selection in the CAMDA breeding group for Welsh Mountain sheep has been based since the start of the scheme on an index that includes litter size, maternal ability, lamb growth and mature size. Since 1987 fat and muscle depths have also been recorded in candidate replacement rams by ultrasonic scanning. Current consumer pressure to improve carcass quality suggests that emphasis be placed on developing an index that incorporates scanning results with other production traits. Construction of such an index requires estimates of the genetic and phenotypic correlations between traits in the selection objectives and criteria. Analyses were conducted to estimate these parameters based on data recorded in the nucleus of the CAMDA breeding group.

scholarly journals The Effect of Carcass Conformation Class (Europ System) on the Slaughter Quality of Young Crossbred Beef Bulls and Holstein-Friesians / Porównanie wartości rzeźnej buhajków mieszańców mięsnych i holsztyno-fryzów w zależności od klasy uformowania w systemie EUROP

2013 ◽  
Vol 13 (1) ◽  
pp. 121-131 ◽  
Author(s):  
Zenon Nogalski ◽  
Marek Wroński ◽  
Zofia Wielgosz-Groth ◽  
Cezary Purwin ◽  
Monika Sobczuk-Szul ◽  
...  
Keyword(s):  
Intramuscular Fat ◽  
Quality Parameters ◽  
Body Measurements ◽  
Meat Content ◽  
Holstein Friesian ◽  
Carcass Conformation ◽  
Beef Bulls ◽  
Cattle Herds ◽  
Intramuscular Fat Content

Abstract The objective of this study was to determine the effect of genotype and carcass conformation class on the slaughter quality of 200 young bulls, including 108 crossbred beef bulls and 92 Holstein- Friesians (HF), aged 21-22 months, selected in the lairage. The lean meat content was estimated and body measurements were taken before slaughter. After slaughter, the carcasses were graded according to the EUROP system, and carcass quality parameters were determined. Intramuscular fat was extracted from samples of m. longissimus dorsi, and the fatty acid profile of extracted fat was determined by gas chromatography. 61.11% carcasses of crossbred beef bulls were graded in the conformation class R, and 56.53% carcasses of Holstein-Friesians were classified as O. The majority of carcasses belonged to fat class 2, which was not consistent with intramuscular fat content. Within the same conformation classes, crossbred beef bulls were characterized by higher slaughter quality than Holstein-Friesian bulls. Meat from hybrid beef bulls had a higher (by 0.42% on average) content of fat with a more desirable composition. Since the population size of beef cattle will probably not increase in the nearest future, efforts should be continued to optimize the production of high-quality beef from dairy cattle herds.

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