Ketosis Risk Evaluation in Postpartum Dairy Cows

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Solution Overview

Problem

Current methods lack a reliable technique for diagnosing the risk of ketosis in postpartum dairy cows before parturition, which hinders proactive nutritional interventions to prevent the disease.

Innovation Solution

An evaluating method that assesses the state of ketosis in postpartum dairy cows by analyzing concentration values of 25 kinds of amino acids and 13 blood chemistry parameters in the cow's blood before parturition, using a formula that includes explanatory variables to identify parous or nulliparous cows.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If simple measurement kits for BHBA are used to diagnose ketosis, then the measurement is simple and can be performed in farms, but these kits cannot reliably diagnose the risk of developing ketosis before parturition

Engineering Contradiction:

Improvesimplicity of measurementVSAvoidreliability of prenatal risk diagnosis

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The invention performs preliminary diagnosis of ketosis risk before parturition by measuring BHBA concentration in blood samples taken during the dry period (before parturition). This preliminary action enables early identification of high-risk cows so that preventive nutritional interventions can be implemented before the disease develops, rather than waiting for clinical symptoms to appear after parturition.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention establishes specific threshold values for BHBA concentration in blood samples taken before parturition to identify high-risk cows. By defining parameter thresholds (BHBA concentration levels) for prenatal sampling, the method transforms the diagnostic approach from post-partum clinical diagnosis to pre-partum risk prediction, enabling reliable early diagnosis while maintaining simplicity.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If subclinical ketosis is treated, then milk production and reproductive performance can be maintained, but subclinical ketosis is difficult to detect before it becomes clinical

Engineering Contradiction:

Improvemilk production and reproductive performanceVSAvoiddetectability of subclinical ketosis

Core Design Contradiction:

ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

The invention performs preliminary detection of subclinical ketosis risk before the disease manifests clinically by measuring BHBA concentration in blood samples taken during the dry period. This preliminary action identifies cows at risk of developing subclinical or clinical ketosis, enabling early intervention to maintain milk production and reproductive performance before the disease affects productivity.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12282024B2Evaluating method of ketosis in postpartum dairy cows

Publication Date: 2025.04.22 AJINOMOTO CO INC

AI summary

An evaluating method includes an evaluating step of evaluating a state of ketosis in postpartum dairy cows for a dairy cow using at least one value of concentration values of Ala, Arg, Asn, Asp, BCAA, Cit, Cys, Glu, Gln, Gly, His, Ile, Leu, Lys, Met, 3MeHis, Orn, Phe, Pro, Ser, Tau, Thr, Trp, Tyr, and Val and concentration values of ALB, ALT, AST, BHBA, BUN, Ca, gGTP, Glc, NEFA, T-Bil, TCHO, TG, and TP in blood of the dairy cow before parturition.