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Method for measuring and determining yield of goose down in living body

A technology of down and yield, which is applied in the field of poultry breeding, can solve the problems of goose body trauma and unfavorable breeding work, and achieve the effect of less damage and good application prospects

Inactive Publication Date: 2016-12-07
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the traditional down measurement method has a great trauma to the goose body and is not conducive to the development of breeding work

Method used

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Examples

Experimental program
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Embodiment Construction

[0012] (1) Collect feathers the size of "one yuan" coins from the back, chest and abdomen of the goose body respectively, bag and mark them respectively, and weigh them with a balance (0.1mg level), record the weight of each part of each individual, and record the weight of each part of each individual. The average weight of flowers, chest thousand flowers, and belly thousand flowers are 0.90g, 0.80g, and 1.29g respectively, and the images of the down collection parts are taken;

[0013] (2) Utilize the image automatic measurement system Imagepro Plus to count the cashmere picking area (cm 2 ), use the area standardization of "one yuan" coin to calculate the back down density x 1 (g / cm 2 ); chest down density x 2 (g / cm 2 ); belly down density x 3 (g / cm 2 );

[0014] (3) Measure the body oblique length x of the goose respectively 4 (cm) and chest depth x 5 (cm), the average body oblique length and chest depth are 29.7cm and 8.7cm respectively, and the surface area of ​​...

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Abstract

The invention relates to a method for measuring and determining the yield of goose down in a living body. The method comprises the following steps of (1) separately collecting down in marked areas of the back, the chest and the abdomen of a goose body, respectively packing the collected down, performing weighing, and taking pictures of the collecting positions of the down; (2) counting the down collecting areas by using a picture automatic measuring and determining system, performing standardization by using marked areas, and counting the down density x1 of the back, the down density x2 of the chest and the down density x3 of the abdomen ; (3) separately measuring and determining the body inclined length x4 of the goose body and the chest depth x5 by using a measuring tape and a calliper rule; and (4) calculating the down yield of the goose according to a fit formula f= (0.262x1+0.097x2+0.486x3) *pi*x4*x5+33.0.6. A goose down yield evaluating model established in the method disclosed by the invention can measure and determine the down yield of the goose accurately by collecting down at the back, the chest and the abdomen within the marked area in a moulting period and then measuring and determining the body inclined length and the chest depth of the goose body. The method not only is practical, and convenient, but also has small hurt to the goose, can be used for selectively breeding geese according to the down yield, and has a favorable application prospect.

Description

technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a method for measuring goose down production in vivo. Background technique [0002] At present, there are two main methods for measuring goose down. The first method is to pull it out once after slaughtering. Although this method has high work efficiency, it cannot maintain the feather type, and the down is easy to lose luster, and it cannot be used for breeding. The second method is live plucking during the moulting period. This method can maintain the feather shape and the color is bright and clean, but the work efficiency is low, it is not easy to pluck clean, and it also has certain damage to the breeding geese. Contents of the invention [0003] In order to solve the problem that the traditional method of measuring down feathers has a greater trauma to the goose body and is not conducive to the development of breeding work. The invention provides a method for me...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 陈国宏徐琪张扬常国斌苏燕辉
Owner YANGZHOU UNIV
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