Abstract
Three steers cannulated in the rumen and abomasum were given a diet of wheat straw, chopped and soaked in sodium hydroxide and then washed to pH less than 8. The straw was sprayed with sucrose, urea and minerals. The diet was free of digestible protein and given at 1·7 to 4·1 kg/day. Microbial protein flowing to the omasum was measured by 15N. By difference, the flow of endogenous protein nitrogen to the omasum was found to be 2·2 g/kg dry-matter intake. The flow of endogenous protein nitrogen to the abomasum was 3·3 to 9·4 g/kg dry-matter intake, and it decreased with increasing food intake.
Publisher
Cambridge University Press (CUP)
Subject
Animal Science and Zoology
Reference10 articles.
1. The flow of N from the rumen of cows and steers maintained by intraruminal infusion of volatile fatty acids;Ørskov;Proceedings of the Nutrition Society,1982
2. Absorption and recycling of nitrogenous compounds in the digestive tract of sheep;Nolan;Proceedings of the Nutrition Society,1976
3. Dynamic aspects of ammonia and urea metabolism in sheep
4. THE DEGRADATION AND UTILIZATION OF ENDOGENOUS UREA IN THE GASTROINTESTINAL TRACT OF RUMINANTS: A REVIEW
Cited by
10 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献