Grain-saving laying duck specialized strain breeding method

A grain-saving, laying duck technology, applied in food processing, data processing applications, instruments, etc., can solve the problems of slow progress and poor effect of genetic inheritance from generation to generation, and achieve the effect of improving feed utilization efficiency

Pending Publication Date: 2022-06-03
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Abstract
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  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for breeding specialized strains of grain-saving laying ducks, which aims to solve the pro

Method used

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  • Grain-saving laying duck specialized strain breeding method
  • Grain-saving laying duck specialized strain breeding method
  • Grain-saving laying duck specialized strain breeding method

Examples

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[0019] Table 1 Determination of performance phenotype data of Shaoxing duck

[0020]

[0021] Before the 43rd week, the individual RFI, feed-to-egg ratio and other indicators were calculated according to the technical model of remaining feed intake. Sort the value of the remaining feed intake, and select the individuals with the smaller value of the remaining feed intake according to the quantity that does not exceed 20% of the seed retention rate, and then select and retain.

[0022] After subculture expansion, record the production performance data of the next generation population, and analyze the effect of breeding using this method. result figure 1 The results showed that the feed-to-egg ratio of the Shaoxing duck population during the laying period was 2.58:1 after breeding for one generation, the feed utilization efficiency increased by 8.84%, and the genetic progress of generations was obvious.

[0023] Example 2 Breeding of Specialized Lines of Jinyun Hemp Ducks ...

Example Embodiment

[0025] Table 2 Determination of production performance phenotype data of Jinyun hemp duck

[0026]

[0027] Before the 43rd week, the remaining feed intake, feed-to-egg ratio and other indicators were calculated according to the technical model of remaining feed intake. Sort the RFI values, and select the individuals with the smallest remaining feed intake according to the number that does not exceed 20% of the seed retention rate, and then select them for retention.

[0028] After subculture expansion, record the production performance data of the next generation population, and analyze the effect of breeding using this method. result figure 2 The results showed that after breeding one generation, the feed-to-egg ratio of Jinyun hemp duck population during the laying period was 2.48:1, the feed utilization efficiency was increased by 9.82%, and the genetic progress of generations was obvious.

[0029] The above descriptions are only preferred embodiments of the present ...

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Abstract

The invention discloses a grain-saving type laying duck specialized strain breeding method, which comprises the following steps: measuring and counting the average value of four indexes of the individual feed intake, the egg laying weight, the average weight and the weight gain of the laying ducks, and substituting the average value of the four indexes into a residual feed intake breed selection technical model which is RFI = FI (77.587 + 0.122 BW 0.75 + 0.555 delta W + 0.853 EML); rFI represents a breeding group individual residual feed intake value, FI represents a breeding group individual average feed intake value, BW represents a breeding group individual average weight, delta W represents a breeding group individual weight gain, and EML represents a breeding group individual average egg laying weight; and sorting the residual feed intake values according to the size, selecting individuals with small residual feed intake values for seed reservation according to the number with the seed reservation rate of not more than 20%, and carrying out subculture propagation. According to the method for breeding, the feed utilization efficiency can be effectively improved, the egg laying weight can be considered, and synchronous genetic improvement of the egg laying weight and the feed utilization efficiency of the laying ducks is achieved.

Description

technical field [0001] The invention belongs to the technical field of poultry breeding, and in particular relates to a breeding method for specialized strains of grain-saving laying ducks. Background technique [0002] Feed cost is the most important profitability determinant in most domestic animal production systems, accounting for about 70% of the total production cost, and has been used as a core indicator to measure the economic benefits of the breeding industry. Improving feed utilization efficiency can not only reduce feed intake and production costs required for livestock and poultry production, but also directly reduce carbon dioxide, nitrous oxide, methane and other greenhouse gas emissions, and reduce pollution to the water environment. [0003] Feed conversion efficiency (FCR) is a commonly used indicator for evaluating feed utilization efficiency. It refers to the ratio of the weight of individual animal feed intake to the weight gain of body weight (egg weight...

Claims

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Application Information

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IPC IPC(8): G06Q50/02G06F17/18A01K67/02
CPCG06Q50/02G06F17/18A01K67/02Y02P60/87
Inventor 曾涛卢立志杨华田勇李国勤陈黎陶争荣刘华侨李清逸许文武顾天天李成凤徐坚
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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