Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 problems of poor feed conversion efficiency selection methods for laying ducks in the past and slow progress in genetic inheritance from generation to generation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 Breeding of Specialized Lines of Shaoxing Ducks of Grain-saving Type

[0018] A breeding population of about 1400 Shaoxing ducks (Zhejiang Guowei Technology Co., Ltd.) was selected. Beginning at week 38, individual cage troughs were separated by designed baffles. From 38 to 42 weeks, the individual feed intake (FI), egg production (EML), body weight (BW) and weight gain (ΔW) of the breeding herd were recorded. The average FI, EML, BW and ΔW of Shaoxing duck were 180.4g / d, 64.7g / d, 1458.2g and 5.2g, respectively, and the feed-to-egg ratio was 2.83:1, as shown in Table 1 below:

[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...

Embodiment 2

[0023] Example 2 Breeding of Specialized Lines of Jinyun Hemp Ducks of Grain-saving Type

[0024] A breeding population of about 1600 Jinyun hemp ducks (Hubei Shendan Health Food Co., Ltd.) was selected. Beginning at week 38, individual cages were separated by designed baffles. From 38 to 42 weeks, the individual feed intake (FI), egg production (EML), body weight (BW) and weight gain (ΔW) of the breeding herd were recorded. The average FI, EML, BW and ΔW of Jinyun hemp duck are 165.2g / d, 60.1g / d, 1350.1g and 1.5g respectively, and the feed-to-egg ratio is 2.75:1, as shown in Table 2 below:

[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 th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com