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estimated by the least square method. For non-linear ones, the interactive method of Marquardt was applied. The best adjustment
was determined from different statistical criteria. ANOVA was applied for weights and daily mean gains, reached in different moments. The square logarithmic model had the best fit of growth, with R2 => 0.93 and P < 0.001 in both treatments, from which the performance of liveweight increase in other group of animals may be predicted, with the use of similar combinations per treatment. Daily mean gain and liveweight, up to 90 d, differed in both treatments after a month of birth. For females of the second treatment, daily mean gains were near 500 g/animal/d, and liveweight was around 69.2 kg up to weaning.
Key words: milk replacers, growth curves, Siboney de Cuba females
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