Theme 09: Forage Quality

Description

The experiment was carried out in the northwest region of the State of São Paulo-Brazil to evaluate ten grasses recently introduced in the region. The grasses studied were: Cynodon nlemfuensis cv. Tifton 68, C. dactylon cv. Tifton 78, Cynodon spp. cv. Tifton 85, C. dactylon cv. Florakirk, C. nlemfuensis cv. Florico, C. nlemfuensis cv. Florona, C. dactylon cv. Coastcross, Paspalum notatum cv. Tifton 9, Brachiaria brizantha cv. Marandu, Panicum maximum cv. Tanzânia 1. The following variables were determined: DM production, growth rate, IVDMD, CP, ADF and NDF.

The GRs varied from 81 to 102 and from 14 to 26 Kg DM ha-1 day-1 during the rainy and dry seasons, respectively. The average contents of CP, NDF and ADF were different (P< 0.05) among grasses. Higher values of CP (124 to 143 g.kg-1) and NDF (717 to 749 g.kg-1) were observed in the Cynodon cultivars while lower values of CP (102 and 107 g.kg-1) and NDF (697 and 705 g.kg-1) were registered in the cvs. Marandu and Tanzânia 1. The contents of ADF were higher in the the cvs. Tanzânia 1 and Tifton 9. The average values of IVDMD differed (P 0.05) among grasses and were all above 564 g.kg-1, except for cv. Tifton-9 (499 g.kg-1). The results obtained in this work allowed to conclude that the cvs. Tifton 78, Tifton 85, Coastcross, Florona, and Tanzânia 1 are interesting options for pastures establishment in the northwest region of the State of São Paulo-Brazil.

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Evaluation of Ten Tropical Grasses in the Northwest Region of the State of São Paulo-Brazil

The experiment was carried out in the northwest region of the State of São Paulo-Brazil to evaluate ten grasses recently introduced in the region. The grasses studied were: Cynodon nlemfuensis cv. Tifton 68, C. dactylon cv. Tifton 78, Cynodon spp. cv. Tifton 85, C. dactylon cv. Florakirk, C. nlemfuensis cv. Florico, C. nlemfuensis cv. Florona, C. dactylon cv. Coastcross, Paspalum notatum cv. Tifton 9, Brachiaria brizantha cv. Marandu, Panicum maximum cv. Tanzânia 1. The following variables were determined: DM production, growth rate, IVDMD, CP, ADF and NDF.

The GRs varied from 81 to 102 and from 14 to 26 Kg DM ha-1 day-1 during the rainy and dry seasons, respectively. The average contents of CP, NDF and ADF were different (P< 0.05) among grasses. Higher values of CP (124 to 143 g.kg-1) and NDF (717 to 749 g.kg-1) were observed in the Cynodon cultivars while lower values of CP (102 and 107 g.kg-1) and NDF (697 and 705 g.kg-1) were registered in the cvs. Marandu and Tanzânia 1. The contents of ADF were higher in the the cvs. Tanzânia 1 and Tifton 9. The average values of IVDMD differed (P 0.05) among grasses and were all above 564 g.kg-1, except for cv. Tifton-9 (499 g.kg-1). The results obtained in this work allowed to conclude that the cvs. Tifton 78, Tifton 85, Coastcross, Florona, and Tanzânia 1 are interesting options for pastures establishment in the northwest region of the State of São Paulo-Brazil.