The mathematical simulation of growth and productivity dynamics of cross chickens «Hisex Brown» and «Lohmann Brown»

Authors

  • Елена Александровна Кучер Mykolaiv National University named after V. O. Sukhomlynsky, Str. Nicholas, 24, Mykolaiv, Ukraine, 54030, Ukraine https://orcid.org/0000-0002-9963-6855
  • Мария Валерьевна Пасечник Mykolaiv National University named after V. O. Sukhomlynsky, Str. Nicholas, 24, Mykolaiv, Ukraine, 54030, Ukraine https://orcid.org/0000-0003-3213-9720

DOI:

https://doi.org/10.15587/2312-8372.2016.72833

Keywords:

bird crosses, distribution classes, growth dynamics, laying curve, mathematical models

Abstract

Feasibility of using T. Bridges, A. Putter and L. von Bertalanffy mathematical models to predict and describe the dynamics of the growth of chickens of different crosses and distribution classes, as well as the use of McMilan mathematical model to predict and describe the egg productivity of chicken was studied. It was established that to predict, describe and analyze the age dynamics of bird body weight the most suitable are T. Bridges and A. Putter models. The accuracy of T. Bridges model is within 85,5-93,8 %. Adequacy of A. Putter model is within 96,0-93,8 % when comparing the actually received and theoretically certain indicators of body weight.

T. Bridges model is most suitable to differentiate the two cross chickens, the value of the asymptote (W∞) ranges in 2016,2-2155,5.

A. Putter model can most definitely use to differentiate the three classes of distribution of body weight: for «Hisex Brown» coefficient «ρ» is in the range:
(-0,6156)-(-0,6463), while for «Lohmann Brown» it is much lower:
(-0,7476)-(-0,8627).

Simulation of laying curve using McMilan model revealed contrast in the standards of its recession and increasing with age of layers. An adequacy of the model ranges in 81,2-81,6 %. «Hisex Brown» cross chickens have a delayed rate of egg production decline after the peak than «Lohmann Brown cross chickens». These mathematical models are important because they accurately describe the dynamics of the growth of chickens of different crosses and distribution classes, as well as their laying (the average percentage of deviation does not exceed 5 % threshold judgment on the validity of the data).

Author Biographies

Елена Александровна Кучер, Mykolaiv National University named after V. O. Sukhomlynsky, Str. Nicholas, 24, Mykolaiv, Ukraine, 54030

Candidate of Agricultural Sciences, Associate Professor

Department of Laboratory Diagnostics

Мария Валерьевна Пасечник, Mykolaiv National University named after V. O. Sukhomlynsky, Str. Nicholas, 24, Mykolaiv, Ukraine, 54030

Candidate of Technical Sciences, Associate Professor

Department of Chemistry and Biochemistry

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Published

2016-07-26

How to Cite

Кучер, Е. А., & Пасечник, М. В. (2016). The mathematical simulation of growth and productivity dynamics of cross chickens «Hisex Brown» and «Lohmann Brown». Technology Audit and Production Reserves, 4(2(30), 38–44. https://doi.org/10.15587/2312-8372.2016.72833

Issue

Vol. 4 No. 2(30) (2016): Information technologies. Mathematical modeling

Section

Mathematical Modeling: Original Research

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