Mathematical model for evaluating fertilization abilities of landrace boars and establishing method for mathematical model

A technology of fertilization ability and mathematical model, which is applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as the inability to accurately assess the fertilization ability of boars, and achieve the effect of reliable coefficient and prediction accuracy.

Active Publication Date: 2015-11-11
SOUTH CHINA AGRI UNIV
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Problems solved by technology

The above data show that the current conventional semen quality testing methods

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  • Mathematical model for evaluating fertilization abilities of landrace boars and establishing method for mathematical model
  • Mathematical model for evaluating fertilization abilities of landrace boars and establishing method for mathematical model
  • Mathematical model for evaluating fertilization abilities of landrace boars and establishing method for mathematical model

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Embodiment 1

[0039] Embodiment 1 A method for establishing a mathematical model of Landrace boar's fertilization ability

[0040] see figure 1 , is the technical roadmap for establishing the mathematical model of the Landrace boar's fertilization ability in this embodiment, and the method for establishing the mathematical model of the Landrace boar's fertilization ability in the present embodiment includes the following specific steps:

[0041] 1) Selection of predictor variables

[0042] 18 variables that can reflect the fertilization ability of boars were selected as the predictive variables of the analysis model, including farrowing rate (FR), litter size (LS), and number of born alive (NBA). , Number of dead piglets (NDP), number of healthy piglets (newborn piglets weighing more than 1.00kg) (Number of qualified piglets, NQP), number of deformed piglets (Number of abnormal piglets, NAP), number of stillborn piglets (NSP) , Weak piglets born in litter (Number of weak piglets, NWP), Nu...

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Abstract

The invention discloses a mathematical model for evaluating fertilization abilities of landrace boars and an establishing method for the mathematical model. The establishing method comprises the steps of: firstly, performing data description on predictive variables of data samples of the landrace boars; secondly, performing system clustering, and dividing the landrace boars with different fertilization abilities according to sample data related with fertilization abilities of boar seminal fluids into a boar group with high fertilization ability and a boar group with low fertilization ability; and thirdly, performing discriminant analysis and Logistic regression analysis after clustering to generate a specific mathematical function. The coefficient and prediction accuracy of the mathematical model established by the method are reliable; a function model suitable for evaluating the fertilization abilities of the in-service landrace boars in Guangdong province can be provided; the function model can serve as a basis for evaluating the fertilization abilities of the landrace boars; and the mathematical model is of great significance on reduction of a gradient change interval of the fertilization abilities of the boars and accurate prediction of the fertilization abilities of the landrace boars.

Description

technical field [0001] The invention belongs to the technical field of animal genetics, breeding and reproduction. More specifically, the invention relates to a mathematical model for evaluating the fertilization ability of Landrace boars and a method for establishing the same. Background technique [0002] Production indicators such as farrowing rate, litter size, litter live piglets, and piglets per parity contribution of participating sows are the ultimate standards to measure the fertilization ability of boars, and the long-term actual pig production mainly depends on boar semen quality was assessed. In production, the quality of boar semen is mainly judged by visual inspection and microscopic inspection. Among them, the naked eye inspection mainly observes the ejaculate volume, semen color, smell, pH and other indicators. The single ejaculate volume of boars is 200-300mL, which is off-white or milky white and has a special fishy smell. The pH value is 6.9-7.5; It main...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 张守全陈志林陈预明吴俊辉卫恒习李莉
Owner SOUTH CHINA AGRI UNIV
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