Resumo

BAUTISTA-MARTINEZ, Yuridia et al. Relationship between technological management practices, production and its association to the seasons of the year in the Mexican tropics dual-purpose system. Nova scientia [online]. 2017, vol.9, n.19, pp.154-170. ISSN 2007-0705.  https://doi.org/10.21640/ns.v9i19.986.

The objective of this study was to describe and assess the relationship between technological practices of herd management of cattle of dual purpose and productivity. In addition to its association with different seasons of the year. For this, the monthly records of the productive variables and technological practices of thirty farms in the States of Chiapas, Tabasco and Sinaloa were analyzed for a year. Using the Canonical Correlations analysis, the relationship between the technological practices was estimated; supplementation, health management, prevention and control of diseases, and pasture management (X) with productive variables; milk production, percentage of milking cows and number of offspring (Y). The correspondence analysis measured the association of the use of technological practices and the seasons of year. The results showed three canonical correlations, the first one was 3.33 and significant, with an observed variability of 89% and the technological practices that best explain the productive variables are the supplementation, health management, prevention and control of diseases. Correspondence analysis showed that farmers in Tabasco and Chiapas vary the technological management practices of the herd according to the seasons of year (rain, dry and transition) while Sinaloa farmers used them throughout the entire year, regardless of the seasons of the year. The use of technological practices in farms influences the productive variables, mainly in the milk production.

Palavras-chave : canonical correlations; correspondence analysis; technological management practices; productivity variables.