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Modelling the growth curve of ducklings as a function of assurement levels of trace elements from feed


Modelling the growth curve of ducklings as a function of assurement levels of trace elements from feed



Lucrai Stiintifice Zootehnie si Biotehnologii, Universitatea de Stiinte Agricole si Medicina Veterinara a Banatului Timisoara 33: 149-152



After supplementation of the different levels of two trace element sources (SFSM*, SFSM**), the body weights of ducklings in certain age period were estimated using the Richards model. The experiment structure comprised of 3 experimental groups (LE1, LE2 and LE3) which had different levels of trace elements. Using the Richard model, 3 mathematical equations were made and at the same time established the residual mean square (PMR) and the determination coefficient (R2).

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