Genetic analysis of production traits and body size measurements and their relationships with metabolic diseases in German Holstein cattle

Schmidtmann, Christin; Segelke, Dierck; Bennewitz, Jörn; Tetens, Jens; Thaller, Georg

doi:10.3168/jds.2022-22363

Cited by 8 publications

(5 citation statements)

References 99 publications

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“…Moreover, the body depth affects the dry matter intake (DMI), and henceforward it will influence the milk yield and fat milk yield (VEERKAMP 1998, BAIMUKANOV et al 2022). Due to this, the body depth correlates with the milk production characteristics as much as 0.138-0.228 (SCHMIDTMANN et al 2023). The magnitude of objective evidence was sturdily directed to the eminence of this trait linked to the milk yield characteristic.…”

Section: Resultsmentioning

confidence: 99%

Identifying the Most Important Linear Body Depth Traits Associated with Milk Yield in Dairy Cattle

Prabowo,

Garip

2023

Rev. Ciênc. Agrovet.

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Depth dimensions are a fundamental linear type trait in the animal body included in dairy cattle science. Unfortunately, the prominent body depth dimension to milk yield is unspecified in lucidity. Thus, the objective of the current research was to identify the excellent body depth dimension of dairy cattle for milk yield as a selection precedence trait. The experiment employed 121 lactation Holstein cows aged specify as 2–6, raised on an Indonesian smallholder commercial dairy farm. R version 4.2.1 with RStudio software simultaneously worked as a statistical analysis tool. The principal component analysis (PCA), correlation, and regression analyses were executed sequentially. The product of the PCA revealed that the chest depth (CHD), body depth (BDD), and udder depth (UDD) traits are the essential body depth dimensions in dairy cattle. A crowning envoy associated with the milk yield capacity was delegated to the UDD trait. However, the UDD is the finest trait for the lactation cow selection program. Presumably, the BDD trait is the prime characteristic for calves and heifer selection schemes.

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Section: Resultsmentioning

confidence: 99%

Identifying the Most Important Linear Body Depth Traits Associated with Milk Yield in Dairy Cattle

Prabowo,

Garip

2023

Rev. Ciênc. Agrovet.

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“…In addition, it is difficult to evaluate if the measured body weight is within the normal range or not against the individual body size, because size can vary greatly, especially among megafauna. Various reports described not only nutritional but also genetic factors affecting the body size [41][42][43]. Thus, body shape evaluation is important but difficult due to the associated inter-observer variability.…”

Section: Discussionmentioning

confidence: 99%

Body Shape Analysis in Reticulated Giraffe, Okapi, and Black Rhinoceros Using Three-Dimensional Laser Measurements

Kido,

Tanaka,

Wada

et al. 2024

JZBG

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Health management in captive animals is difficult for various unknown reasons presumably related to physiological functions, disease, and diet. Generally, abnormal conditions are diagnosed based on body weight; however, zoos lack appropriate scales for megafauna. Body shape evaluation is often used to evaluate the nutritional status of breeding animals; however, this is inaccurate for zoo animals because of inter-observer variability, especially in megafauna. Previously, three-dimensional laser measurements were used to analyse body shape of reticulated giraffe, but further studies are required to examine its effectiveness in more individuals, and other species. Here, we applied this method to seven reticulated giraffe (Giraffa reticulata), five okapi (Okapia johnstoni), and three black rhinoceros (Diceros bicornis) individuals for which cross-sectional area, width, and height in transverse section were determined. Relative change rates of each variable in relation to measurements at the axillary region revealed changes in body shape for each individual. Further, scatter plots and corresponding fitted curves and correlation coefficients showed a correlation between body length and approximate volume. The accuracy of three-dimensional laser measurements was demonstrated in three animal species, whereby we propose its use as an alternative method to evaluate body shape in megafauna without the inter-observer variability. In addition, this handheld device may be applied for various zoos without the scale for megafauna.

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“…A cow with a wide pin, long sloping rump, and slight slope from the pin bone to thurl is known to have easier calving [18,19]. Additionally, correlations have been observed between body conformation traits such as body condition score (BCS), stature (STA), udder depth (UDE), chest width (CWI), and milk production traits [20].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Genomic Prediction Accuracy for Body Conformation Traits in Korean Holstein Cattle

Lee,

Mun,

Koo

et al. 2024

Animals

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The Holstein breed is the mainstay of dairy production in Korea. In this study, we evaluated the genomic prediction accuracy for body conformation traits in Korean Holstein cattle, using a range of π levels (0.75, 0.90, 0.99, and 0.995) in Bayesian methods (BayesB and BayesC). Focusing on 24 traits, we analyzed the impact of different π levels on prediction accuracy. We observed a general increase in accuracy at higher levels for specific traits, with variations depending on the Bayesian method applied. Notably, the highest accuracy was achieved for rear teat angle when using deregressed estimated breeding values including parent average as a response variable. We further demonstrated that incorporating parent average into deregressed estimated breeding values enhances genomic prediction accuracy, showcasing the effectiveness of the model in integrating both offspring and parental genetic information. Additionally, we identified 18 significant window regions through genome-wide association studies, which are crucial for future fine mapping and discovery of causal mutations. These findings provide valuable insights into the efficiency of genomic selection for body conformation traits in Korean Holstein cattle and highlight the potential for advancements in the prediction accuracy using larger datasets and more sophisticated genomic models.

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Genetic analysis of production traits and body size measurements and their relationships with metabolic diseases in German Holstein cattle

Cited by 8 publications

References 99 publications

Identifying the Most Important Linear Body Depth Traits Associated with Milk Yield in Dairy Cattle

Identifying the Most Important Linear Body Depth Traits Associated with Milk Yield in Dairy Cattle

Body Shape Analysis in Reticulated Giraffe, Okapi, and Black Rhinoceros Using Three-Dimensional Laser Measurements

Enhancing Genomic Prediction Accuracy for Body Conformation Traits in Korean Holstein Cattle

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