SNP-Based Genetic Testing for Dairy Cattle Breeding

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Solution Overview

Problem

Traditional cattle breeding methods are inefficient due to reliance on phenotypic characteristics, which do not account for genetic variability and environmental factors, leading to prolonged and costly progeny testing processes.

Innovation Solution

Identification of specific single nucleotide polymorphisms (SNPs) in genes such as UTMP, STAT1, OPN, and OLR1, allowing for genetic testing to predict desirable milk production and health traits in dairy cattle, enabling early evaluation and selection of superior breeding stock.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional phenotypic breeding methods are used, then selection accuracy is limited, but genetic variability and environmental factors are not accounted for

Engineering Contradiction:

Improveselection accuracyVSAvoidgenetic variability information

Core Design Contradiction:

Measurement precisionVSLoss of information

Solution Approach 1:

The patent replaces traditional phenotypic measurement methods with molecular genetic analysis methods. Specifically, it uses DNA-based genotypic evaluation to assess genetic merit, substituting the mechanical/physical observation of phenotypic traits with molecular-level genetic analysis. This enables direct measurement of genetic variability without environmental confounding, thereby improving selection accuracy while preserving genetic information.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If progeny testing is conducted to evaluate true genetic value, then measurement accuracy improves, but time commitment and cost increase significantly

Engineering Contradiction:

Improvegenetic value evaluation accuracyVSAvoidprogeny testing duration

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent implements preliminary genetic evaluation by analyzing DNA samples from young bulls immediately after birth or even before birth. This preliminary genotypic assessment allows breeders to identify superior genetic candidates early in life, eliminating the need to wait years for phenotypic expression and progeny testing results. The action is performed in advance, dramatically reducing the time required for genetic value evaluation.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If young bulls are evaluated after birth for marker presence, then selection efficiency improves, but genetic testing infrastructure and expertise are required

Engineering Contradiction:

Improvebreeding selection efficiencyVSAvoidgenetic testing system complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent extracts the essential genetic information by focusing on specific molecular markers (such as SNPs or microsatellites) that are linked to desirable milk production traits. Rather than analyzing the entire genome or requiring complex phenotypic evaluation systems, it isolates and tests for the presence of specific genetic markers. This extraction approach simplifies the testing infrastructure needed while maintaining high selection efficiency.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS7807361B2Dairy cattle breeding for improved milk production traits in cattle

Publication Date: 2010.10.05 WISCONSIN ALUMNI RES FOUND

AI summary

Nucleic acid molecules comprising a SNP site at position 1296 of bovine uterine milk protein (UTMP) coding sequence (SEQ ID NO: 1), which SNP indicates a desirable productive life in a dairy cattle. Also disclosed are an array or a kit comprising the same, a method for detecting the SNPs, a method for progeny testing of cattle, and a method for selectively breeding of cattle.