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Murta JEJ, Silva YAMRD, Murta EA, Rodrigues DA, Silva LST, Carvalho RHSD. Lesões vacinais na carcaça de bovinos no Norte de Minas Gerais. Pubvet 2019. [DOI: 10.31533/pubvet.v13n9a405.1-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Monção FP, Costa MAMS, Rigueira JPS, de Sales ECJ, Leal DB, da Silva MFP, Gomes VM, Chamone JMA, Alves DD, da Cunha Siqueira Carvalho C, Murta JEJ, Júnior VRR. Productivity and nutritional value of BRS capiaçu grass (Pennisetum purpureum) managed at four regrowth ages in a semiarid region. Trop Anim Health Prod 2019; 52:235-241. [PMID: 31309378 DOI: 10.1007/s11250-019-02012-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 07/08/2019] [Indexed: 11/25/2022]
Abstract
The objective of this study was to evaluate the productivity, productive efficiency, and nutritional value of the elephant grass cultivar BRS capiaçu (Pennisetum purpureum Schum.), managed at four regrowth ages during winter in the semiarid region of northern Minas Gerais, Brazil. A completely randomized design with the elephant grass cultivar BRS capiaçu was submitted to four cut intervals (30, 60, 90, and 120 days) in the winter with ten replications, for a total of 40 plots, each with a useful area of 6 × 5 m. There was a linear increase of 76.25% (P < 0.01) in the height of BRS capiaçu grass when cut from 30 to 120 days. Green matter production (P < 0.01) and dry matter production (P < 0.01) increased daily by 1081 kg/ha and 237 kg/ha, respectively. The annual dry matter production was 72 t/ha. Efficiency in water use changed (P < 0.01) from 7.91 kg of dry matter (DM)/mm at 30 days to 57.59 kg of DM/mm at 120 days of regrowth. There was a reduction in the ash content (P < 0.01), crude protein (P < 0.01), and the total digestible nutrient content (P < 0.01) with the increase in the age of the cut. The readily soluble fraction of DM (fraction A, P < 0.01), degradation rate "c" of insoluble fraction "B" (P = 0.01), potential degradability (PD; P < 0.01), and degradability (ED; P < 0.01) decreased linearly as the regrowth age increased. Harvesting is recommended at 90 days of regrowth during the winter season in this semiarid region.
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Affiliation(s)
- Flávio Pinto Monção
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil.
| | - Marco Aurélio Morais Soares Costa
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
| | - João Paulo Sampaio Rigueira
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
| | - Eleuza Clarete Junqueira de Sales
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
| | - Dijair Barbosa Leal
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
| | - Marcos Felipe Pereira da Silva
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
| | - Virgílio Mesquita Gomes
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
| | - Julieta Maria Alencar Chamone
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
| | - Dorismar David Alves
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
| | - Cinara da Cunha Siqueira Carvalho
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
| | - José Eduardo Jardim Murta
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
| | - Vicente Ribeiro Rocha Júnior
- Department of Animal Science and Technology, State University of Montes Claros, Avenue Reinaldo Viana, 2630, Janaúba, Minas Gerais, Brazil
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