Change of the extensive system of management and feeding by semi-intensive in cattle of meat in the Ecuador

Abstract

The research was conducted in the Canton Antonio Elizalde (Bucay), province of Guayas, Ecuador; South America. The objectives were to measure weight gain of steers of brahman breed fattening in entire and castrated in the phase of fattening or 300Kg, King grass-fed chopped grass, diet and ration food and intensive management. Use d 20 bullock s brahman of24 months and 300Kg B.W. divided into four groups of 5 each, 5 who le and 5 geldings, they fed only grass King chopped grass; 5 who le and 5 geldings were fed grass King crushed grass and a diet concentrated, the statis tic al method of design was factorial 2 x 2 random. The result s determined weight gain total average of 87.6 Kg equivalent to 0,545 Kg by U.A. (Anima l unit), daily gain from birth to 24 months (G.D.P.) weight was 0,362 Kg/ day. There was no statis tic al difference between the groups in entire and castrated total weight gain of King grass-fed chopped grass and fed only grass concentrate and whole food diet King chopped grass, three groups were higher; the gelding group fed only grass King chopped grass was less 13.8 Kg - 15. 7%. Generated proposals are: the intensive system of management and feeding pasture King grass to increase the lo ad of I to 20 AU / Ha; Not neutered , entire male s are more productive than the geldings; Neutering and supplement concentrated only in cases where the market outweigh the difference by quality of the meat.