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Productive and feeding performance of dairy cows fed sugarcane bagasse ammoniated with urea and cottonseed

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dc.contributor.authorRibeiro, A.S.
dc.contributor.authorPires, A.J.V.
dc.contributor.authorSantos, D.C.
dc.contributor.authorAlbuquerque, M.L.P.
dc.contributor.authorSilva, F.F.
dc.contributor.authorDutra, I.C.
dc.contributor.authorAmorim, S.S.
dc.contributor.authorGalvao, P.C.S.
dc.contributor.authorSantos, M.L.S.
dc.contributor.authorAmaral, M.V.
dc.contributor.authorPublio, P.P.P.
dc.contributor.authorOliveira, G.R.S.
dc.date.accessioned2025-12-19T07:43:02Z
dc.date.available2025-12-19T07:43:02Z
dc.date.issued2026
dc.descriptionReceived: September 25th, 2025 ; Accepted: December 1st, 2025 ; Published: December 9th, 2025 ; Correspondence: amanda.s.ri@hotmail.comeng
dc.description.abstractThe objective was to evaluate the use of ammoniated sugarcane bagasse (ASB) and cottonseed (CS) in the diet for lactating cows and their effects on intake, nutrient digestibility, dairy performance, microbial synthesis and ingestive behavior. The experiment was carried out at Bela Vista Farm (Encruzilhada-BA) and at the Forage and Pasture Laboratory of UESB (Itapetinga-BA), using eight multiparous ½ Holstein/Zebu crossbred cows with an average lactation of 20 kg day-1 and body weight of 454.7 ± 23.6 kg. The cows were distributed in two 4×4 Latin squares, in a 2×2 factorial scheme, evaluating ammoniated sugarcane bagasse (30% or 40%) associated or not with cottonseed (0% or 18%). The experiment had four periods of 21 days, 17 of adaptation and 4 of collection, totaling 84 days. The interaction between the proportions of ASB and CS was not significant for any of the variables evaluated. The inclusion of 30% sugarcane bagasse obtained from sugarcane bagasse resulted in higher intakes of dry matter (DM), crude protein (CP), ether extract (EE), non-fibrous carbohydrates (NFC), and total digestible nutrients (TDN), without influencing the consumption of neutral detergent fiber corrected for ash and protein. Higher intake (P < 0.05) of DM, CP, NFC, and TDN was observed in the diet without sugarcane bagasse, and in the diet with sugarcane bagasse, EE intake was higher (P < 0.05). The ASB content and the inclusion of CS influenced digestibility at 40% ASB, and with CS, they provided lower digestibility. Furthermore, individual factors did not affect these variables (P < 0.05). Feed efficiency and percentage of total solids in milk were higher for diets with 40% ASB. The use of 40% ASB with CS is recommended.eng
dc.identifier.citationRibeiro, A. S., Pires, A. J. V., Santos, D. C., Albuquerque, M. L. P., Silva, F. F., Dutra, I. C., Amorim, S. S., Galvao, P. C. S., Santos, M. L. S., Amaral, M. V., Publio, P. P. P., & Oliveira, G. R. S. (2025). Productive and feeding performance of dairy cows fed sugarcane bagasse ammoniated with urea and cottonseed. Estonian University of Life Sciences. https://doi.org/10.15159/AR.25.108en
dc.identifier.issn2228-4907
dc.identifier.publicationAgronomy Research, 2026, vol. 24, Special Issue x, pp. x–xeng
dc.identifier.urihttp://hdl.handle.net/10492/10200
dc.identifier.urihttps://doi.org/10.15159/ar.25.108
dc.publisherEstonian University of Life Scienceseng
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)eng
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectfeeding behavioureng
dc.subjectforage alternativeseng
dc.subjectmilk compositioneng
dc.subjectrumen fermentationeng
dc.subjectsustainabilityeng
dc.subjectarticleseng
dc.titleProductive and feeding performance of dairy cows fed sugarcane bagasse ammoniated with urea and cottonseedeng
dc.typeArticleeng

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