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Animal Reproduction and Physiology
Asian-Australasian Journal of Animal Sciences 2010;23(2): 182-187.
DOI: https://doi.org/10.5713/ajas.2010.90279    Published online December 22, 2009.
Puberty Related Changes in Hormonal Levels, Productive Performance, Carcass Traits, and Their Interactions in Slovakian White Gilts
A. Kolesarova, A. V. Sirotkin, S. Roychoudhury, M. Capcarova
Abstract
The aim of this experiment was to evaluate the levels of hormones (progesterone, IGF-I and IGFBP-3) in blood plasma, growth, carcass traits and their interactions of sexually immature (n = 18) and sexually mature (n = 17) gilts. To calculate average daily weight gain (ADG), gilts were individually weighed at the beginning of the trial and at slaughter (110??0 days old). Blood concentrations of progesterone, IGF-I and IGFBP-3 were determined by RIA. The right hot carcass sides were dissected and the individual basic parts from carcasses were weighed to record the carcass traits. IGFBP-3, ADG and carcass traits were not affected by pubertal maturation. Compared to sexually immature gilts, mature gilts had higher blood concentrations of progesterone and IGF-I. High correlations were noted between levels of some hormonal substances, productive performance and carcass traits of sexually immature and mature gilts.
Keywords: Gilt; Progesterone; IGF-I; IGFBP-3; Productive Performance; Carcass Traits


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