000131229 001__ 131229
000131229 005__ 20240206154530.0
000131229 0247_ $$2doi$$a10.1016/j.anifeedsci.2005.04.018
000131229 0248_ $$2sideral$$a55697
000131229 037__ $$aART-2005-55697
000131229 041__ $$aeng
000131229 100__ $$aMota, M.$$uUniversidad de Zaragoza
000131229 245__ $$aEvaluation of four tropical browse legumes as nitrogen sources: Comparison of in vitro gas production with other methods to determine N degradability
000131229 260__ $$c2005
000131229 5203_ $$aThe value of the tropical browse legumes Acacia cornigera (ACA), Albizia lebbekoides (ALB), Enterolobium cyclocarpum (ENT) and Leucaena leucocephala (LEU) as ruminal N sources was examined. The N content (g/kg dry matter) was 38.0, 28.6, 35.1 and 46.7, and acid detergent insoluble N (ADIN; g/kg dry matter) was 9.0, 10.7, 18.7 and 19.8 for ACA, ALB, ENT and LEU, respectively. In vitro gas production at 24 h ranked ACA > ENT > LEU > ALB (P < 0.001), except that there were no differences between ENT and LEU after 12 h of incubation. The N degradability was estimated by the in vitro relationship between gas production and ammonia N concentration (NDg), N disappearance from incubation residue (NDd), and incubation with Streptomyces griseus enzymes (NDe). To determine NDg, legume samples (601 ± 0.54 mg) were incubated with 0 mg (n = 3), 150 mg (n = 2) or 300 mg (n = 2) starch for 24 h in two experiments. Regression of ammonia (y, mg) on gas produced (x, ml) for each browse in each experiment (n = 7) yielded r2 coefficients between 0.974 and 0.997. Average estimated NDg were 0.32, 0.22, 0.63 and 0.22 for ACA, ALB, ENT and LEU, whereas NDd had N digestion coefficients of 0.40, 0.17, 0.70 and 0.36, and NDe 0.41, 0.24, 0.44 and 0.36, respectively. NDg was lower than NDd and NDe for LEU, but higher than NDe for ENT (P < 0.05). However, methods correlation ranged from 0.73 to 0.92. In vitro estimated N digestion suggested that 0.52, 0.17, 0.30 and 0.41 of undegraded N from ACA, ALB, ENT and LEU was intestinally digestible.
000131229 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000131229 590__ $$a1.121$$b2005
000131229 591__ $$aAGRICULTURE, DAIRY & ANIMAL SCIENCE$$b13 / 42 = 0.31$$c2005$$dQ2$$eT1
000131229 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000131229 700__ $$aRodriguez, R.
000131229 700__ $$0(orcid)0000-0001-8056-5236$$aSolanas, E.$$uUniversidad de Zaragoza
000131229 700__ $$0(orcid)0000-0002-0712-1185$$aFondevila, A.$$uUniversidad de Zaragoza
000131229 7102_ $$12008$$2700$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Producción Animal
000131229 7102_ $$12008$$2X$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cProy. investigación HTA
000131229 773__ $$g123-124, Part 1 (2005), 341-350$$pAnim. feed sci. technol.$$tAnimal Feed Science and Technology$$x0377-8401
000131229 8564_ $$s177437$$uhttps://zaguan.unizar.es/record/131229/files/texto_completo.pdf$$yVersión publicada
000131229 8564_ $$s1493441$$uhttps://zaguan.unizar.es/record/131229/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000131229 909CO $$ooai:zaguan.unizar.es:131229$$particulos$$pdriver
000131229 951__ $$a2024-02-06-14:51:52
000131229 980__ $$aARTICLE