Background:

Climate change is a reality and agricultural development strategies must know the agrometeorological characteristics of the corresponding areas.

Objective.

To characterize nine genetic companies in the country that have beef breeds through some climatic variables.

Methods: Monthly information on climatic variables was available: minimum environmental temperature (0C) (Tmin), average (0C) (Tmed), maximum (0C) (Tmax), relative humidity (RH) (%), estimating also the temperature humidity index (ITH), of 9 companies in the three regions of the country, from 1980-2018, with 3 374 records. Analysis of variance was carried out for the five climatic variables, including company, year and month and interactions as sources of variation.

Results:

The general means were: 21,91 ± 1,46 oC; 27,29 ± 1,52 oC; 30,57 ± 1,68 oC; 76,19 ± 4,18% y 77,78 ± 3,45 for Tmin, Tmed, Tmax, RH and ITH, respectively. The company, year and month and the interactions were highly significant (P≤ 0.001), excepted the interactions of third order and season x year. R2 in models were in the range from 51,25% for RH to 76,02% for ITH. The Turiguanó company was the one with the worst climatic indicators.

Conclusions:

It is concluded that the climatic variables allow characterizing the companies, which facilitates the selection of the races and/or genotypes appropriate to the environmental conditions.