Excretion of purine derivatives in cows: endogenous contribution and recovery of exogenous purine bases
نویسندگان
چکیده
منابع مشابه
Excretion of endogenous and exogenous purine derivatives in sheep: effect of increased concentrate intake.
The present study examined the endogenous urinary excretion of purine derivatives (PD; allantoin, uric acid and xanthine plus hypoxanthine) in fed animals. Four Rasa Aragonesa ewes fitted with simple cannulas in the rumen and proximal duodenum were used. Animals were given a lucerne (Medicago sativa) hay diet, as sole feed (A) or supplemented, respectively, with 220 (B), 400 (C), and 550 (D) g ...
متن کاملPyrimidine Derivatives and Purine Bases in Soils
In earlier papers the presence of protein decomposition products in soils was reported and it was shown that in soils the changes occurring in the decay of such plant and animal materials as get into the soil are similar to the changes occuring under other conditions in the laboratory or in nature. The presence of arginine and histidine in soils was definitely established by isolating these deg...
متن کاملPyrimidine Derivatives and Purine Bases in Soils
In earlier papers the presence of protein decomposition products in soils was reported and it was shown that in soils the changes occurring in the decay of such plant and animal materials as get into the soil are similar to the changes occuring under other conditions in the laboratory or in nature. The presence of arginine and histidine in soils was definitely established by isolating these deg...
متن کاملPyrimidine Derivatives and Purine Bases in Soils
In earlier papers the presence of protein decomposition products in soils was reported and it was shown that in soils the changes occurring in the decay of such plant and animal materials as get into the soil are similar to the changes occuring under other conditions in the laboratory or in nature. The presence of arginine and histidine in soils was definitely established by isolating these deg...
متن کاملExcretion of purine derivatives by Holstein cows abomasally infused with incremental amounts of purines.
Five multiparous, ruminally cannulated Holstein cows (two lactating and three dry) weighing (X +/- SD) 667 +/- 35 kg were used to study the effect of abomasal purine infusion on the excretion of purine derivatives. Cows were fed corn silage four times daily at 90% of ad libitum intake (X = 9.16 kg of dry matter/d). Purines were infused into the abomasum as brewer's yeast suspensions in five inc...
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ژورنال
عنوان ژورنال: Livestock Production Science
سال: 2001
ISSN: 0301-6226
DOI: 10.1016/s0301-6226(00)00231-1