scholarly journals International genetic evaluation of Holstein bulls for overall type traits and body condition score

2012 ◽  
Vol 95 (8) ◽  
pp. 4721-4731 ◽  
Author(s):  
M. Battagin ◽  
F. Forabosco ◽  
J.H. Jakobsen ◽  
M. Penasa ◽  
T.J. Lawlor ◽  
...  
Keyword(s):  
Body Condition ◽  
Body Condition Score ◽  
Genetic Evaluation ◽  
Condition Score ◽  
Type Traits ◽  
Holstein Bulls

scholarly journals Development of a genetic evaluation for body condition score for Canadian Holsteins

2013 ◽  
Vol 96 (6) ◽  
pp. 3994-4004 ◽  
Author(s):  
S. Loker ◽  
C. Bastin ◽  
F. Miglior ◽  
A. Sewalem ◽  
L.R. Schaeffer ◽  
...  
Keyword(s):  
Body Condition ◽  
Body Condition Score ◽  
Genetic Evaluation ◽  
Condition Score

scholarly journals Genetic evaluation for body condition score in Italian Brown Swiss cattle

2007 ◽  
Vol 6 (sup1) ◽  
pp. 198-200 ◽  
Author(s):  
A. Rossoni ◽  
C. Nicoletti ◽  
O. Bonetti ◽  
L. Testa ◽  
E. Santus
Keyword(s):  
Body Condition ◽  
Body Condition Score ◽  
Genetic Evaluation ◽  
Brown Swiss ◽  
Condition Score ◽  
Brown Swiss Cattle

Estimating body weight, body condition score, and type traits in dairy cows using three dimensional cameras and manual body measurements

2020 ◽  
Vol 236 ◽  
pp. 104054 ◽  
Author(s):  
B.M. Martins ◽  
A.L.C. Mendes ◽  
L.F. Silva ◽  
T.R. Moreira ◽  
J.H.C. Costa ◽  
...  
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Body Condition ◽  
Body Condition Score ◽  
Three Dimensional ◽  
Body Measurements ◽  
Condition Score ◽  
Type Traits

scholarly journals INFLUENCE OF THE DEVELOPMENT OF LINEAR CONFORMATION TRAITS CHARACTERIZING THE BODY STATE, ON THE VIABILITY OF COWS UKRAINIAN BROWN DAIRY BREED

2019 ◽  
Vol 58 ◽  
pp. 120-129 ◽  
Author(s):  
V. I. Ladyka ◽  
L. M. Hmelnychyi ◽  
S. L. Hmelnychyi
Keyword(s):  
Body Condition ◽  
Body Condition Score ◽  
The State ◽  
The Body ◽  
Body Structure ◽  
Body Depth ◽  
Brown Cattle ◽  
Condition Score ◽  
Type Traits ◽  
The Relationship

In the aspect of the search for predictors of longevity of dairy cattle animals, the dependence of longevity of Ukrainian brown dairy cows on indicators of descriptive conformation type traits has been investigated. We studied the linear type traits of the exterior of first-calf cows in the leading farms of the Sumy region, characterizing the state of the body development. According to the results of this research was determined, a reliable dependence of the cows longevity on the level of assessment of the descriptive conformation type traits: chest width, body depth, angularity, rump angle and width, and body condition score. The correlative variability of the relationship between cow’s longevity and these features was depending on the level of assessment of specific type trait of body structure of the animal. Dependence of the cows longevity on the development of chest width was different by curvilinear variability. The longer life of cows was found in animals with an estimate for the development of this type trait at 4–6 scores that averaged 2.726–2.895 days with the best 5 scores. When comparing the group of animals with an average 5 scores with the groups having 6–9 scores, a significant difference was found in favor of the first, ranging from 169 (P < 0.01) to 561 days (P < 0.001). Studies on the dependence of the longevity of brown cattle cows on the value of body depth assessment have shown that the most longevity was inherent in animals estimated by type trait development at 7–9 scores, with the highest rate in 2.856 days and estimate – 7 scores. The type trait of angularity similar to deep-chested and was also directly related to the cow's longevity. Cows with excessive angularity and the highest lifetime (2.713–2.855 days) were estimated by the higher scores (7–9) with the best evaluation results in 8 scores. A significant decrease in cows longevity was observed with a decrease in the assessment for this trait starting from 6 scores (-244 days; P < 0.05) to 1 (-701 days; P < 0.001) compared with the best result of 8 scores. The desired state of the linear trait development, the rump angle, was within the average assessment level of 5 scores, which similar to the optimal sacrum slope between the extreme points on the conditionally drawn line at the level of the top point of hip bones and the ischial hump, which was 2–4 cm. Deviations towards the assessment of the rump angle to 1 score (raised) or 9 scores (sloped) are the disadvantages of the body structure. The study of this trait has shown the curvilinear nature of the relationship between estimates for the state of rump angle and longevity of cows. Cows with an optimal 5 scores rating had the highest longevity of 2.796 days, while with increasing and decreasing estimates, the number of days of life of cows decreased. The longevity of cows of brown cattle was determined on the level of assessment for the trait of the rear width. Cows with a maximum estimate for the state of this descriptive trait in 9 scores were used for 575 days longer compared to animals rated at 1 score (P < 0.001). According to the results of research of animals by the trait of body condition, it was found that the degree of fatness was associated with the longevity of brown cattle in the opposite direction. That is, a thinner animals, which are valued lower scores, and used to live much longer. The influence of body condition score on the longevity of animals was confirmed by the highly reliable difference between the maximum (9 scores) and the minimum (1 score) estimates, which was 457 days (P < 0.001). A significant decrease of the longevity was observed in cows with an assessment of body condition in 6–9 scores. Thus, the existence of a correlative variability between estimates of descriptive traits of conformation type and the longevity of cows of Ukrainian brown breeds was determined. Each of the estimated type traits of the body structure correlates with the longevity of cows with varying variability within the classification scores in accordance with their desired development. Thus, the selection of animals for the desired development of linear traits at the age of the first lactation allows them to be used as indirect predictors to increase the duration of use of cows.

Genetic parameters for cow weight and condition score in Angus, Hereford, and Poll Hereford cattle

1996 ◽  
Vol 47 (8) ◽  
pp. 1251 ◽  
Author(s):  
DJ Johnston ◽  
H Chandler ◽  
HU Graser
Keyword(s):  
Body Condition ◽  
Evaluation System ◽  
Field Data ◽  
Genetic Parameters ◽  
Body Condition Score ◽  
Genetic Correlations ◽  
Genetic Evaluation ◽  
Multiple Trait ◽  
Hereford Cattle ◽  
Condition Score

Heritabilities and genetic correlations for cow weight and body condition score were estimated from field data for 3 beef breeds in Australia. In all, 8177 cows of mixed ages were weighed and scored for body condition at calf weaning time in seedstock herds as part of a large research project. The average weaning age was 212, 221, and 218 days for Angus, Hereford, and Poll Hereford, respectively. Cow weights and condition scores were analysed separately for each breed and estimates of genetic parameters were obtained by Restricted Maximum Likelihood (REML). Cow weight and condition score were moderately heritable: h2 = 0.43 and 0.21 for Angus, 0.39 and 0.14 for Hereford, and 0.48 and 0.17 for Poll Hereford. The genetic correlation between CW and CS was 0.49, 0.65, and 0.58 for Angus, Hereford, and Poll Hereford, respectively. There is potential for providing a genetic evaluation for cow weight using field data in Australian beef cattle. Its modelling for inclusion in a multiple trait genetic evaluation system such as BREEDPLAN is discussed.

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