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Method for improving poultry production efficiency by rapidly evaluating liver brittleness

A production efficiency and poultry technology, applied in the field of poultry breeding, can solve the problems of expensive B-type ultrasonic detector, poultry is not easy to accept security quietly, and liver fragility cannot be judged, etc., achieving low price, high coefficient of determination, and accuracy high effect

Pending Publication Date: 2022-04-12
JIANGSU INST OF POULTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, B-mode ultrasonography in human medicine is the most commonly used method for modern medical imaging diagnosis. It plays an important role in the diagnosis of liver diseases. It can directly detect the width and thickness of the liver, and color Doppler ultrasound can evaluate the degree of fatty liver; however, there is no way Determining liver fragility
Because the poultry body is rich in hair, the dorsal side of the liver area is covered by thick pectoral muscles and thorax, and the ventral side of the liver area is covered by spines, and it is difficult for poultry to accept security quietly, so it is difficult to accurately grasp the liver status of poultry with B-ultrasound. What's more, the B-type ultrasonic detector is expensive, and it is inconvenient to enter the poultry farm for inspection
Liver fragility is an intermediate index for evaluating liver health, but there is still a lack of instruments for direct in vivo detection of liver fragility in poultry

Method used

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  • Method for improving poultry production efficiency by rapidly evaluating liver brittleness
  • Method for improving poultry production efficiency by rapidly evaluating liver brittleness
  • Method for improving poultry production efficiency by rapidly evaluating liver brittleness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Establish a regression equation for estimating liver fragility in vivo

[0023] (1) Select Rugao yellow chickens as the modeling group, at 4 time points of 18 weeks, 22 weeks, 28 weeks, and 36 weeks, randomly select 10 chickens at each time point, and collect blood through wing veins, Perform anticoagulant treatment, collect plasma directly for testing or freeze at -20°C for later use;

[0024] (2) Measure the total cholesterol in the blood of each sample (as shown in Table 1), then use the curve evaluation regression method to carry out curve fitting to the above-mentioned blood biochemical index total cholesterol and liver fragility, and establish a regression equation y=-0.007x 3 +0.140x 2 –0.933x+2.744 (where R 2 =0.816, x is the content of total cholesterol in individual sample blood, the unit is mmol / L), and the t test shows that the P values ​​of the regression coefficients -0.007, 0.140, and 0.933 are all less than 0.001, which is significant; according to ...

Embodiment 2

[0036] 1. Selection of blood biochemical indicators when establishing a regression equation for estimating liver fragility in vivo

[0037] (1) Select Rugao yellow chickens as the modeling group, at 4 time points of 18 weeks, 22 weeks, 28 weeks, and 36 weeks, randomly select 10 chickens at each time point, and collect blood through wing veins, Perform anticoagulant treatment, collect plasma directly for testing or freeze at -20°C for later use;

[0038] (2) Determination of ALT (U / L), AST (U / L), total cholesterol (mmol / L), and triglyceride (mmol / L) in the blood of each sample, respectively, compared with those measured by the muscle tenderness instrument Correlation analysis, linear regression analysis and curve estimation were performed on liver shear force.

[0039] (3) The correlation analysis between ALT and the liver shear force measured by the muscle tenderness instrument did not reach significance (the correlation coefficient was -0.167, P=0.297), and was eliminated. ...

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Abstract

The invention provides a method for improving poultry production efficiency by rapidly evaluating liver brittleness, which comprises the following steps: (1) acquiring total cholesterol content in blood of a plurality of poultry in a preset poultry species group, acquiring liver shear force of the plurality of poultry in the preset poultry species group through a muscle tenderness tester, the liver shearing force is used as the brittleness of the liver; (2) curve fitting is conducted on the obtained total cholesterol content and the obtained liver brittleness, a regression equation y = ax3 + bx2 + cx + d is established, y is the liver brittleness, x is the total cholesterol content, a, b and c are regression coefficients of the liver brittleness relative to the cubic regression coefficient, the quadratic regression coefficient and the first regression coefficient of the total cholesterol content respectively, and d is a proofreading coefficient; (3) obtaining the total cholesterol content of the blood of the poultry to be detected in the preset poultry species group; and (4) obtaining the liver brittleness of the poultry to be detected according to the regression method.

Description

technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a method for improving poultry production efficiency by rapidly evaluating liver fragility. Background technique [0002] The liver is an important organ in the animal body that mainly has metabolic functions. Its main functions are to secrete bile, store glycogen, regulate the metabolism of proteins, fats and carbohydrates, etc., as well as detoxify, hematopoietic and coagulation. For poultry, 95%-98% of the body's lipid synthesis comes from the liver; therefore, the health of the poultry liver is even more important for maintaining body functions. Under the intensive breeding mode, the subclinical damage of poultry liver caused by recessive disease infection, environmental stress, feeding technology and (or) regular physiological activities, etc., mainly manifests as swelling, congestion, hemorrhage, fatty degeneration, symptoms of amyloidosis. Poultry with subclinic...

Claims

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Application Information

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IPC IPC(8): G16H50/30G06F17/18
Inventor 施寿荣胡艳沈一茹胡云肖蕴祺邵丹王强张珊张安
Owner JIANGSU INST OF POULTRY SCI
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