Caracterización de los ovinos en la estación experimental Tunshi

Abstract

The sheep characterization carried out at the facilities of the Sheep and Goat Research Unit of the Tunshi Experimental Station belonging to the Superior Polytechnic School of Chimborazo located in the Licto Parish, Chimborazo Province , a total of 44 sheep categorized as adults were measured (1 year onwards) and maltones (3 months - 1 year), considering two objectives, one of them was to measure 21 variables with the use of a zoom rod and measuring tape, to calculate the zoom indexes from those variables. Giving as result in the visual examination to any animal with defects in the spine such as lordosis, in aplombs such as stevado and in the jaw as prognathism among others, of the 22 measured variables, 20 of them did not register significant differences, the variables raised to the cross and the rump were not proportional values, proving to be animals with little selection. Regarding the evaluation of the ethnological indices, there were highly significant differences between categories for the cephalic, thoracic, direct proportionality, metacarpal and relative chest depth index where the animals categorized as maltones with an age between 3 months to year of age they stand out on average in relation to the maltones with an age between three months and the year of age and sheep between one year of age and older, determining that as the category passes, the averages decrease concluding that a selection of animals that have better characteristics should be made recommending to run genetic improvement programs or new blood entry in order to maintain the ideal or standard of the breeds: Rambouillet, Corriedale and Poll Dorset that are in the station.