“豫粉1号”配套系商品代蛋鸡产蛋率曲线拟合及蛋品质分析

doi:10.16431/j.cnki.1671-7236.2017.06.015

Abstract

Abstract:

In order to explore the changing rules of egg production and egg quality of Yufen Ⅰ commercial line,the Wood model,Yangning model and McMillan model were used to fit the curve of egg production rate,and the qualities of eggs at 32,36 and 40 weeks were analyzed. The non-linear equation of three kinds of model showed as follows:Wood model:y_t=0.327×2.2t×e^－0.067t;McMillan model:y_t=159.19×(1－e^{－0.199×(t－17.612)})×e^－0.019t;Yangning model:y_t=0.284×e^－0.284t/(1+e^{－0.302×(t－20.779)}),and the R² were 0.885,0.987 and 0.991,respectively.Compared with the actual production data,the fitting value of Yangning model was the closest to the observed value,and the fitting effect was the best.The results of egg quality analysis showed that the Haugh unit of Yufen Ⅰ was 82.61, reached the AA level.Eggshell strength reached 4.77 kg/m² with high strength.The color of egg yolk was 8.72,deeper than the ordinary eggs.These results indicated that Yangning model could be used to estimate and forecast the variation of laying rate of the strain in the actual production. It could provide reference for the breeding and management of new breed of local layers. The egg quality could be optimized in the later matching system.

Key words: Yufen Ⅰ commercial line; laying rate; fitting curve; egg quality

CLC Number:

S831

LI Hong-fei, SONG Ya-yi, TIAN Ya-dong, JIANG Rui-rui, KANG Xiang-tao, SUN Gui-rong, YAN Feng-bin. Fitting Curve of Laying Rate and Egg Quality Analysis of Yufen Ⅰ Commercial Line[J]. , 2017, 44(6): 1680-1687.

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Fitting Curve of Laying Rate and Egg Quality Analysis of Yufen Ⅰ Commercial Line

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