ABSTRACT
ADJUSTMENT FOR CURVES OF GROWTH IN EXPERIMENTS OF ANIMAL NUTRITION

Raúl Barnier B.1
 

A procedure is suggested for adjusting growth curves both in swine and poultry experiments. For this purpose the relations between actual weight and average daily gain, using the weekly or every two weeks individuals weights, were calculated. Through this relation two parameters were calculated for very experimental animal by means of the least squares method. These parameters were tested for sufficiency by solving the corresponding differential equations, giving a level of convenient sufficiency for the two cases under study. Therefore these results make possible to recomend the analysis of these parameters for comparing different treatments in swine and poultry experiments, since it permitsa, complete analysis of the individual response.

Keywords:
1Ing. Agr., Estadística Experimental. Estación Experimental La Platina, Instituto de Investigaciones Agropecuarias (INIA), Casilla 5427, Santiago, Chile.