Sangam: A Confluence of Knowledge Streams

Ruminal Fiber Degradation Kinetics within and among Warm-Season Annual Grasses as Affected by the Brown Midrib Mutation

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dc.creator Ferreira, Gonzalo
dc.creator Galyon, Hailey
dc.creator Silva-Reis, Ayelen I.
dc.creator Pereyra, Agustin A.
dc.creator Richardson, Emily S.
dc.creator Teets, Christy L.
dc.creator Blevins, Phil
dc.creator Cockrum, Rebecca R.
dc.creator Aguerre, Matías J.
dc.date 2022-10-13T16:41:12Z
dc.date 2022-10-13T16:41:12Z
dc.date 2022-09-22
dc.date 2022-10-13T12:58:10Z
dc.date.accessioned 2023-03-01T18:54:17Z
dc.date.available 2023-03-01T18:54:17Z
dc.identifier Ferreira, G.; Galyon, H.; Silva-Reis, A.I.; Pereyra, A.A.; Richardson, E.S.; Teets, C.L.; Blevins, P.; Cockrum, R.R.; Aguerre, M.J. Ruminal Fiber Degradation Kinetics within and among Warm-Season Annual Grasses as Affected by the Brown Midrib Mutation. Animals 2022, 12, 2536.
dc.identifier http://hdl.handle.net/10919/112139
dc.identifier https://doi.org/10.3390/ani12192536
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/281813
dc.description The objective of this study was to compare the nutritional composition and the neutral detergent fiber (NDF) degradation kinetics of brown midrib (BMR) and non-BMR genotypes within and across warm-season annual grasses. Four commercial varieties (two non-BMR and two BMR) of corn, sorghum, and pearl millet were planted in plots. Forage samples were incubated in the rumen of three rumen-cannulated cows for 0, 3, 6, 12, 24, 48, 96, and 240 h. On an NDF basis, all forage types showed lower acid detergent lignin (ADL) concentrations for BMR genotypes, but the magnitude of the difference differed among forage types. The concentration of undegraded NDF (uNDF; NDF basis) differed among forage types and between genotypes. Corn had the least, pearl millet had the intermediate, and sorghum had the greatest concentration of uNDF. Non-BMR genotypes had greater concentrations of uNDF than BMR genotypes. No interaction existed between forage type and genotype for the concentration of uNDF. In conclusion, although BMR forages may show lower ADL concentrations in the cell wall and greater NDF degradability than non-BMR forages of the same forage type, BMR forages do not always have the least ADL concentration or the greatest NDF degradability when comparing different forage types.
dc.description Published version
dc.format application/pdf
dc.format application/pdf
dc.language en
dc.publisher MDPI
dc.rights Creative Commons Attribution 4.0 International
dc.rights http://creativecommons.org/licenses/by/4.0/
dc.title Ruminal Fiber Degradation Kinetics within and among Warm-Season Annual Grasses as Affected by the Brown Midrib Mutation
dc.title Animals
dc.type Article - Refereed
dc.type Text


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