Impact of dietary inclusion of clinoptilolite as substitute of soybean meal on growth performance, dietary energetics and carcass traits of feedlot ewes fed a corn-based diet

摘要: espanolRESUMEN: Se utilizaron 40 ovejas (31,725 ± 1,44 kg PV inicial) para evaluar la suplementacion (0, 1, 2 y 3%, en base seca de dieta) clinoptilolita (ZEOL) sustitucion harina soya (SBM) una dieta finalizacion a maiz el crecimiento, balance energetico caracteristicas canal. El experimento duro 56 dias. Para cada porcentaje SBM por ZEOL, proteina cruda energia neta (EN) basal se redujo 0,37 unidades porcentuales 0,02 Mcal/kg, respectivamente. No hubo efecto los tratamientos ganancia diaria peso (GDP), consumo materia (CMS) o eficiencia alimenticia (GDP/CMS). La EN no vio afectada administracion pero debido caracteristica inerte ZEOL relacion dietetica observada-a-esperado aumento linealmente proporcion observado-a-esperado del CMS disminuyo con ZEOL. espesor grasa visceral, sin efectos otras medidas canal organos (como g/kg corporal vacio). zeolita hasta 3% afecto negativamente crecimiento las canal, resultando que inclusion fuente alta dietas acabado tuvo un positivo utilizacion dieta. EnglishABSTRACT: Forty ewes (31.725±1.44 initial LW) were used to evaluate the effects of clinoptilolite supplementation 2, and DM basis diet) as substitute soybean meal in finishing corn-based diet on growth performance, dietary energetics, carcass traits. The experiment lasted days. For each percentage substitution by crude protein net energy (NE) decreased 0.37 units 0.02 respectively. There treatment (P>0.27) average daily gain (ADG), dry matter intake (DMI), efficiency (ADG/DMI). Dietary NE was not affected (P≥0.69). However, due inertness (it does provide energy) itself, ratio observed-to-expected linearly increased (P=0.02) DMI with supplementation. Clinoptilolite fat thickness visceral (P=0.03) (P≥0.12) other measures or organ tissue weights (as proportion empty body weight). Dilution CP zeolite up did negatively affect performance This result suggests that high source diets has positive effect utilization energy.