The objective of this experiment was to evaluate the effects of adding monoammonium phosphate (MAP) in high concentrate diets containing citrus pulp on feedlot lamb performance and carcass characteristics. Twenty four Santa Ines lambs (26.4 kg of initial body weight and 125 d old) were penned individually and used in a randomized complete block design according to body weight and age at beginning of the trial. Diets were formulated to provide a similar amount of crude protein and contained 70% of citrus pulp on a DM basis. MAP was added at 0, 0.3, 0.6, and 0.9% of the diet DM corresponding to the experimental treatments CON, 0.3MAP, 0.6MAP, and 0.9MAP, respectively. There was a linear decrease in dry matter intake and average daily gain, although no changes on carcass measures were observed. The use of MAP in citrus pulp diets affects lamb growth negatively.
by-products; carcass; performance; Santa Inês; sheep
