Bacterial protein degradation by different rumen protozoal groups1
نویسندگان
چکیده
© 2012 American Society of Animal Science. All rights reserved. J. Anim. Sci. 2012.90:4495–4504 doi:10.2527/jas2012-5118
منابع مشابه
Bacterial protein degradation by different rumen protozoal groups.
Bacterial predation by protozoa has the most deleterious effect on the efficiency of N use within the rumen, but differences in activity among protozoal groups are not completely understood. Two in vitro experiments were conducted to identify the protozoal groups more closely related with rumen N metabolism. Rumen protozoa were harvested from cattle and 7 protozoal fractions were generated imme...
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1. A method for estimating the proportions of bacterial- and protozoal-N in the total non-ammonia-N reaching the lower gut of the ruminant under steady-state conditions was evaluated. Three trials using two different diets were conducted with a Holstein steer equipped with a rumen cannula and duodenal re-entrant cannulas. 2. An intraruminal primed infusion of (15NH4)2SO4 was administered for 68...
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