Effect of Elevated Systemic Concentrations of Ammonia and Urea on the Metabolite and Ionic Composition of Oviductal Fluid in Cattle

摘要: High dietary protein leads to elevated systemic concentrations of ammonia and urea, these, in turn, have been associated with reduced fertility cattle. The effect elevating urea on the electrolytes nonelectrolytes bovine oviductal fluid were studied using estrus-synchronized, nulliparous heifers (n = 25). Heifers randomly assigned 1 3 treatments consisting jugular vein infusion either ammonium chloride 8), or saline 9). Oviducts catheterized, was recovered over a 3-h period Day 2 8 estrous cycle. No difference (P > 0.05) found any electrolyte nonelectrolyte between oviducts ipsi- contralateral corpus luteum. Plasma increased by 0.05). treatment plasma glucose, lactate, magnesium, potassium, sodium insulin progesterone. concentration calcium negatively urea. Oviductal higher than Elevated are unlikely reduce embryo survival through disruptions environment.