A comparison of rumen fluid sampled by oro-ruminal probe versus rumen fistula

摘要: Abstract Ten adult (height 63–85 cm) rumen-fistulated sheep were used to test the usefulness of an oro-ruminal probe and a suction pump for acquisition ruminal fluid. Use these instruments in 50 samplings rendered 200 ml fluid each time. Introduction length 91.3 ± 3.5 cm took 18 6.5 s. Collection 7.4 2.2 Sampling location was ventral sack. Comparing taken by with samples via fistula tube-like probe, no significant differences pH, total acidity, reduction potential, ammonia, acetate, L-lactate, sodium chloride concentrations found. However, between observed regard volatile fatty acids, propionate, n -butyrate, i -valerate, calcium, phosphate, magnesium potassium. The independent sampling order (oro-ruminal prior vice versa). These results indicate that do not contain sampling-dependent saliva residues. Those collected had consistently higher as well potassium than probe. originated from more dorsal regions proved be useful collection sack sheep.