{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Thompson JP"],"funding":["Agri-Food and Biosciences Institute","U.S. Department of Agriculture","Biotechnology and Biological Sciences Research Council"],"pagination":["101698"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12708440"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["19(12)"],"pubmed_abstract":["Ruminants have poor nitrogen use efficiency, with 70% of total ingested nitrogen (N) excreted. Much of this excreted N is in the form of urinary urea which is easily hydrolysed to ammonia. Increasing ammonia production has negative impacts on environmental and human health. Dietary supplementation with condensed tannins (CTs) could be a solution as they bind to the N source (protein) in the rumen, preventing degradation, allowing more N to reach the abomasum for digestion and absorption. However, if this N is not absorbed, it results in a shift in N excretion from urine to faeces. The aim of this study was to evaluate the effect of willow containing CTs through a 21% DM dietary inclusion of two willow varieties (Salix Beagle: BG and Salix Terra Nova: TN) mixed with grass silage. Willow tre"],"journal":["Animal : an international journal of animal bioscience"],"pubmed_title":["Supplementation with willow containing condensed tannins shifted nitrogen excretion from urine to faeces in yearling ewes."],"pmcid":["PMC12708440"],"funding_grant_id":["BB/T008776/1"],"pubmed_authors":["Thompson JP","Safoi L","Zeller WE","Southam AD","Theodoridou K","Ludwig C","Cristobal-Carballo O","Yan T","Huws S","Lloyd GR","Stergiadis S"],"additional_accession":[]},"is_claimable":false,"name":"Supplementation with willow containing condensed tannins shifted nitrogen excretion from urine to faeces in yearling ewes.","description":"Ruminants have poor nitrogen use efficiency, with 70% of total ingested nitrogen (N) excreted. Much of this excreted N is in the form of urinary urea which is easily hydrolysed to ammonia. Increasing ammonia production has negative impacts on environmental and human health. Dietary supplementation with condensed tannins (CTs) could be a solution as they bind to the N source (protein) in the rumen, preventing degradation, allowing more N to reach the abomasum for digestion and absorption. However, if this N is not absorbed, it results in a shift in N excretion from urine to faeces. The aim of this study was to evaluate the effect of willow containing CTs through a 21% DM dietary inclusion of two willow varieties (Salix Beagle: BG and Salix Terra Nova: TN) mixed with grass silage. Willow tre","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Dec","modification":"2026-06-06T04:09:47.277Z","creation":"2026-05-25T03:12:04.119Z"},"accession":"S-EPMC12708440","cross_references":{"pubmed":["41314162"],"doi":["10.1016/j.animal.2025.101698"]}}