Efectos de la cerdaza como nitrógeno no proteico (NNP) en la ganancia de peso de toros de engorde.

Abstract

The present research work was developed in the facilities of the Experimental Farm Río Suma, Universidad Laica "Eloy Alfaro" of Manabí, Extension in El Carmen, with the objective of determining the effect of sow as non-protein nitrogen (NNP) on weight gain in fattening bulls, for which a randomized complete block design (RCBD) was established based on the comparison of three sources of variability: treatment factor, block factor and random error, the treatments consisted of sow levels which were 0, 1, 2 and 3 kg of sow, with 3 replicates each, the replicates were formed by the bulls, using a total of 12 animals for the whole trial; the variables measured were weight gain, feed conversion and benefit/cost ratio. Among the results obtained, it was determined that the levels of sow applied as a supplement statistically influenced the weight gain and feed conversion of the bulls for fattening, leaving 3 kg of sow per animal as the best treatments, while for the benefit/cost ratio the economic representation of the treatments is low, being below one dollar, significant differences were also found (p < 0.05) between the levels of sow.