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Genetic Analysis of Novel Traits in Holstein Dairy Cattle.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Genetic Analysis of Novel Traits in Holstein Dairy Cattle./
Author:	Novo, Larissa Carolina.
Description:	1 online resource (145 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
Contained By:	Dissertations Abstracts International85-03B.
Subject:	Animal sciences. -
Online resource:	click for full text (PQDT)
ISBN:	9798380345293

Genetic Analysis of Novel Traits in Holstein Dairy Cattle.
Novo, Larissa Carolina.

Genetic Analysis of Novel Traits in Holstein Dairy Cattle. - 1 online resource (145 pages)

Source: Dissertations Abstracts International, Volume: 85-03, Section: B.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2023.

Includes bibliographical references

The availability of new technologies, as well as a greater attention to the needs of consumers and society, has promoted the development of selection strategies for novel traits in dairy cattle. However, several steps must be followed from the proposal until the implementation of novel traits into breeding programs. This process requires efforts from the definition of the new trait, exploration of the genetic basis of the trait, the development of proper analysis methods, and finally the implementation of a genetic evaluation. This thesis addresses different aspects of the development and implementation of novel traits, including definition of the phenotype, better understanding of the biological processes affecting the trait, identification of putative causal variants and genes, and finally a feasibility study of a national genetic evaluation. Specifically, this thesis evaluated different body temperature phenotypes as potential indicators of feed efficiency traits, investigated visceral fat deposition and its relationship with metabolic disorders, uncovered putative causal variants for periparturient hypocalcemia, and explored the implementation of a national genetic evaluation for Johne's disease. The first study showed that body temperature can be used as an indicator of feed efficiency and energy-related traits. The second study revealed that visceral fat accumulation is associated with inflammation, insulin resistance, and immune response, and is genetically linked to displaced abomasum. The third study identified genetic variants and individual genes affecting postpartum blood calcium concentration. The last study showed that a national genetic evaluation for Johne's Disease in Holsteins is feasible. Overall, this work has performed a comprehensive investigation of the different steps required for the development and implementation of novel traits in dairy cattle.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380345293Subjects--Topical Terms:

1178863
Animal sciences.
Subjects--Index Terms:

Causal variantsIndex Terms--Genre/Form:

554714
Electronic books.

Genetic Analysis of Novel Traits in Holstein Dairy Cattle.
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