A bio-economic analysis model in Tetra H hybrid raised in organic system

Simiz, Eliza and Mic, Florica and Drinceanu, Dan and Ştef, Lavinia and Pătruică, Silvia: A bio-economic analysis model in Tetra H hybrid raised in organic system. Review on agriculture and rural development, (2) 1. pp. 68-73. (2013)

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Abstract

This paper shows a bio-economic analysis model in Tetra H hybrid, raised in organic system, in line with the protein intake and of the body weight registered during the experimental period. The mathematic model y=a/(l+bx+cx2) allows the assessment of the expenses recorded with chicken feeding depending on crude protein intake. The model also validates the possibility to simplify the chickens' nutrition technology (starting from a triphase fodder feeding to a diphase fodder feeding) and at nutritional (protein) levels adapted to the desired body weight. The indices of correlation between the expenses registered with fodder feeding and crude protein intake show us that between them there is a strongly positive correlation, thus: 0.958 (in Tl), 0.980 (in T2) and 0.972 (in T3). The indices of determination (R2) corresponding to the three experimental variants are higher, with values over 0.963, and the error percentage of the mathematical model is reduced (below 6%). Based on the results obtained in Tetra H chickens, it may be recommended a diphase fodder feeding (with starter fodder between 1-21 days and grower-finisher fodder between 22-112 days) with concentrates mixtures (CM) by 22% and 17,5% CP and 2971 and 3160 kcal ME/kg.

Item Type: Article
Journal or Publication Title: Review on agriculture and rural development
Date: 2013
Volume: 2
Number: 1
Page Range: pp. 68-73
ISSN: 2063-4803
Language: angol
Uncontrolled Keywords: Természettudomány, Agrártudomány, Matematika, Biológia
Additional Information: Bibliogr.: p. 72-73. ; Összefoglalás angol nyelven
Date Deposited: 2016. Oct. 17. 09:56
Last Modified: 2018. Jul. 26. 11:18
URI: http://acta.bibl.u-szeged.hu/id/eprint/30361

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