Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value
This two-year study evaluated the effect of <i>Pennisetum purpureum</i> genotypes under rainfed or irrigated conditions, during the dry and rainy seasons, on herbage, leaf, and stem dry matter (DM) accumulation rates, nutritive value, and carbohydrate and protein fractionation. Treatment...
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MDPI AG
2021-08-01
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| Online Access: | https://www.mdpi.com/2076-2615/11/8/2392 |
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| author | Rayanne Thalita de Almeida Souza Mércia Virginia Ferreira dos Santos Márcio Vieira da Cunha Geane Dias Gonçalves Valdson José da Silva Alexandre Carneiro Leão de Mello James Pierre Muir Robson Elpídio Pereira Ribeiro José Carlos Batista Dubeux |
| author_facet | Rayanne Thalita de Almeida Souza Mércia Virginia Ferreira dos Santos Márcio Vieira da Cunha Geane Dias Gonçalves Valdson José da Silva Alexandre Carneiro Leão de Mello James Pierre Muir Robson Elpídio Pereira Ribeiro José Carlos Batista Dubeux |
| author_sort | Rayanne Thalita de Almeida Souza |
| collection | DOAJ |
| description | This two-year study evaluated the effect of <i>Pennisetum purpureum</i> genotypes under rainfed or irrigated conditions, during the dry and rainy seasons, on herbage, leaf, and stem dry matter (DM) accumulation rates, nutritive value, and carbohydrate and protein fractionation. Treatments were tall (Iri 381 and Elefante B) or dwarf (Mott and Taiwan A-146 2.37) genotypes under rainfed or irrigated conditions. Taiwan A-146 2.37 (146 kg DM ha per day) showed similar herbage accumulation rate (HAR) to tall genotypes during the rainy season (124 and 150 kg DM/ha per day, respectively). Dwarf genotypes showed differences in leaf accumulation rate (LAR) (66 and 49 kg DM/ha per day). Mott leaf had less neutral detergent fiber (NDF) (589 g/kg DM) than Taiwan A-146 2.37 (598 g/kg DM), and tall genotypes had generally greater NDF (668 g/kg DM) than the dwarf genotypes. Irrigation increased fiber deposition in the leaf. Stems of all genotypes had lower in vitro digestible dry matter (IVDDM) (378 g/kg DM) under rainfed conditions in the rainy season. Leaf from irrigated plots had 23% more carbohydrate C fraction (160 g/kg CHO) than those from rainfed plots (122 g/kg CHO). Dwarf genotypes had generally greater nutritive value than tall genotypes. These genotypes show promise under irrigation to fill forage gaps during dry periods. |
| first_indexed | 2024-03-10T09:04:14Z |
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| id | doaj.art-50f16a1b654641ceb4d827b65ce6b81e |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T09:04:14Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj.art-50f16a1b654641ceb4d827b65ce6b81e2023-11-22T06:31:28ZengMDPI AGAnimals2076-26152021-08-01118239210.3390/ani11082392Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive ValueRayanne Thalita de Almeida Souza0Mércia Virginia Ferreira dos Santos1Márcio Vieira da Cunha2Geane Dias Gonçalves3Valdson José da Silva4Alexandre Carneiro Leão de Mello5James Pierre Muir6Robson Elpídio Pereira Ribeiro7José Carlos Batista Dubeux8Department of Animal Science, Federal Rural University of Pernambuco, Dom Manoel de Medeiro Street, Dois Irmãos, Recife, Pernambuco 52171-900, BrazilDepartment of Animal Science, Federal Rural University of Pernambuco, Dom Manoel de Medeiro Street, Dois Irmãos, Recife, Pernambuco 52171-900, BrazilDepartment of Animal Science, Federal Rural University of Pernambuco, Dom Manoel de Medeiro Street, Dois Irmãos, Recife, Pernambuco 52171-900, BrazilFederal University of Agreste of Pernambuco, Bom Pastor Avenue, Boa Vista, Garanhuns, Pernambuco 55292-270, BrazilDepartment of Animal Science, Federal Rural University of Pernambuco, Dom Manoel de Medeiro Street, Dois Irmãos, Recife, Pernambuco 52171-900, BrazilDepartment of Animal Science, Federal Rural University of Pernambuco, Dom Manoel de Medeiro Street, Dois Irmãos, Recife, Pernambuco 52171-900, BrazilTexas A&M AgriLife Research, 1229 Hwy 281, Stephenville, TX 76401, USADepartment of Animal Science, Federal Rural University of Pernambuco, Dom Manoel de Medeiro Street, Dois Irmãos, Recife, Pernambuco 52171-900, BrazilNorth Florida Research and Education Center, University of Florida, 3925 Hwy 71, Marianna, FL 32446-8091, USAThis two-year study evaluated the effect of <i>Pennisetum purpureum</i> genotypes under rainfed or irrigated conditions, during the dry and rainy seasons, on herbage, leaf, and stem dry matter (DM) accumulation rates, nutritive value, and carbohydrate and protein fractionation. Treatments were tall (Iri 381 and Elefante B) or dwarf (Mott and Taiwan A-146 2.37) genotypes under rainfed or irrigated conditions. Taiwan A-146 2.37 (146 kg DM ha per day) showed similar herbage accumulation rate (HAR) to tall genotypes during the rainy season (124 and 150 kg DM/ha per day, respectively). Dwarf genotypes showed differences in leaf accumulation rate (LAR) (66 and 49 kg DM/ha per day). Mott leaf had less neutral detergent fiber (NDF) (589 g/kg DM) than Taiwan A-146 2.37 (598 g/kg DM), and tall genotypes had generally greater NDF (668 g/kg DM) than the dwarf genotypes. Irrigation increased fiber deposition in the leaf. Stems of all genotypes had lower in vitro digestible dry matter (IVDDM) (378 g/kg DM) under rainfed conditions in the rainy season. Leaf from irrigated plots had 23% more carbohydrate C fraction (160 g/kg CHO) than those from rainfed plots (122 g/kg CHO). Dwarf genotypes had generally greater nutritive value than tall genotypes. These genotypes show promise under irrigation to fill forage gaps during dry periods.https://www.mdpi.com/2076-2615/11/8/2392chemical compositionnapiergrassirrigation<i>Pennisetum</i>variability |
| spellingShingle | Rayanne Thalita de Almeida Souza Mércia Virginia Ferreira dos Santos Márcio Vieira da Cunha Geane Dias Gonçalves Valdson José da Silva Alexandre Carneiro Leão de Mello James Pierre Muir Robson Elpídio Pereira Ribeiro José Carlos Batista Dubeux Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value Animals chemical composition napiergrass irrigation <i>Pennisetum</i> variability |
| title | Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value |
| title_full | Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value |
| title_fullStr | Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value |
| title_full_unstemmed | Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value |
| title_short | Dwarf and Tall Elephantgrass Genotypes under Irrigation as Forage Sources for Ruminants: Herbage Accumulation and Nutritive Value |
| title_sort | dwarf and tall elephantgrass genotypes under irrigation as forage sources for ruminants herbage accumulation and nutritive value |
| topic | chemical composition napiergrass irrigation <i>Pennisetum</i> variability |
| url | https://www.mdpi.com/2076-2615/11/8/2392 |
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