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Method for improving meat percentage of pigs by establishing protein precipitation curve equation

A protein precipitation and curve equation technology, which is applied in the field of improving the meat yield of live pigs, can solve the problems affecting the meat yield of hogs, the processing of meat pigs, and the lack of protein precipitation curve equations, etc., so as to save feeding costs, bring out the slaughter in advance, and save The effect of feed costs

Inactive Publication Date: 2013-05-29
JINHUA ACAD OF AGRI SCI
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Problems solved by technology

Moreover, NRC (1998) did not provide a protein precipitation curve equation at a certain body weight, that is, a reasonable method for calculating the growth rate of fat-free lean meat
In this way, even if the NRC (1998) model can produce excellent meat pigs, the meat pigs cannot be processed at the right time, which affects the meat yield of the meat pigs

Method used

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  • Method for improving meat percentage of pigs by establishing protein precipitation curve equation
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specific Embodiment approach

[0011] Such as figure 1 Shown, the specific embodiment of the present invention is as follows:

[0012] First of all, it should be noted that the present invention is suitable for ordinary farmers, especially for large-scale farms. However, farmers need scientific management and scientific records of the basic conditions of the pigs they raise. Without basic data, it is impossible to control the growth curve.

[0013] On the premise of having first-hand information, we take Du Dachang growing and finishing pigs as an example. The specific implementation method is as follows: first, set the Gompertz equation to fit the growth curve, and use the Gompertz equation to establish the growth curve equation of live weight and age, and at the same time Establish the growth curve equation of fat-free lean mass and age. Gompertz equation for W t =Ae -b*exp(-kt) , W t Refers to the weight at age t, A is the weight limit parameter, k is the growth rate when it is close to the limit w...

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Abstract

The invention aims to provide a method for improving meat percentage of pigs by establishing a protein precipitation curve equation. The method has the beneficial effects of improving the meat percentage of pigs, simultaneously improving the nutrient content of the pigs and lowering the production cost of pig raising by scientifically guiding the production mode of pigs by utilizing a scientific mathematical model. In order to achieve the effects: the method is characterized by utilizing Gompertz equations to fit growth curves of weights of castrated boars and sows, fatless lean meat amount and day of age, utilizing a derivation equation of the Gompertz equation of fatless lean meat amount and day of age to establish an equation of daily gain of fatless lean meat and day of age, utilizingthe derivative equations of the Gompertz equation of weights and day of age and the Gompertz equation of daily gain of fatless lean meat and day of age to establish a potential finishing pig protein precipitation model of weights and daily gain of fatless lean meat, computing the date with peak fatless lean meat amount and the date with peak protein precipitation of the pigs according to the actual food intake of the pigs and slaughtering the pigs according to the actual production requirements.

Description

technical field [0001] The invention relates to a pig breeding method, in particular to a method for improving the meat yield of pigs by establishing a protein precipitation curve equation. Background technique [0002] NRC (1998) <<Nutritional Requirements of Pigs>> is an essential manual in the pig industry. It uses North American pig breeds and North American environmental conditions to establish a mathematical model to estimate the energy and amino acid requirements of pigs, and based on this model to guide piglets, growing-finishing pigs, pregnant and lactating sows and breeding males Pig rations neutralize daily requirements for energy, amino acids, vitamins, minerals and linoleic acid. Readers can use different models to determine the energy, amino acids, vitamins, minerals and linoleic acid that are suitable for local conditions according to their actual conditions, such as pig lean growth rate, feed intake, dietary energy concentration, ambient temperat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50A01K67/02
Inventor 项云
Owner JINHUA ACAD OF AGRI SCI
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