Analysis of crude protein utilisation in ruminant rations: supplementation of limiting amino acids and their effect on the environment - an updated review

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dc.contributor.authorSajid, Q. U. A.
dc.contributor.authorWilk, M.
dc.contributor.authorAsghar, M. U.
dc.date.accessioned2024-11-07T13:32:03Z
dc.date.available2024-11-07T13:32:03Z
dc.date.issued2024
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractProtein quality plays a pivotal and dynamic role in the growth, productivity, and reproduction of ruminants. Increasing the proportion of dietary protein (CP) alone cannot balance the concentration of limiting amino acids (AA) in the duodenum of high -yielding dairy cows. However, supplying rumen -protected AA is believed to improve productivity and reproduction rates. Malabsorption of CP -rich meals in the rumen leads to high nitrogen (N) excretion through urine and faeces in the form of nitric oxide, nitrous oxide, ammonia and nitrate in the environment. Research data indicate that lysine and methionine are the two most limiting AA in the ruminant ration. Supplementing these limiting AA in ruminant diets is one of the most effective strategies to improve CP usage and reduce the negative impact of CP in the diet. Several in vivo and in vitro experimental studies have demonstrated that even low -quality dietary CP, when supplemented with rumen -protected AA (Met + Lys), exhibited a greater ability to reduce N2 or NH3 losses, while also supporting a decrease in enteric fermentation gas production and minimising soil or water pollution associated with animal production. However, further research is necessary to explore the molecular and genetic mechanisms underlying the effects of AA dietary supplementation on the rumen microbiota in ruminants.
dc.identifier.doi10.22358/jafs/166576/2023
dc.identifier.endpage12
dc.identifier.issn1230-1388
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85185600542
dc.identifier.scopusqualityQ3
dc.identifier.startpage3
dc.identifier.urihttps://doi.org/10.22358/jafs/166576/2023
dc.identifier.urihttps://hdl.handle.net/11480/15189
dc.identifier.volume33
dc.identifier.wosWOS:001155033000004
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherKielanowski Inst Animal Physiology Nutrition
dc.relation.ispartofJournal of Animal and Feed Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectcrude protein
dc.subjectenvironment
dc.subjectlimiting amino acids
dc.subjectrumen microbiota
dc.subjectruminants
dc.titleAnalysis of crude protein utilisation in ruminant rations: supplementation of limiting amino acids and their effect on the environment - an updated review
dc.typeReview Article

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