Consulta: creatorFacets:"Salvador, Paulo Roberto"
Registros recuperados: 2
Data/hora: 16/06/2024 00:01:38

Morphogenesis and structure of Tifton 85 cultivated in subtropical climate and fertilized with nitrogen
Provedor de dados: 2
Autores: Tiecher, Diego Daniel; Rocha, Marta Gomes da; Pötter, Luciana; Salvador, Paulo Roberto; Bergoli, Tuani Lopes; Milanesi, Gabriela Descovi.
The experiment evaluated the morphogenesis and structure of Tifton 85 (Cynodon spp.) cultivated in subtropical climate and fertilized with nitrogen (N). The experiment was a completely randomized design with four levels of N (Zero; 75; 150 or 225 kg ha-1) in nine replicates per area. The experimental animals were Suffolk female lambs. The grazing method was continuous to maintain the sward height at 15 cm ± 10%. The stem expansion increased by 0.000027 cm degree-days-1 to each kg N applied (linear model). According to nonlinear model, the highest stem expansion (0.0226 cm degree-days-1) was observed with the use 220.1 kg ha-1 N. The leaf lifespan fitted a linear regression model, with increase of 50 degree-days leaf -1, comparing the levels zero and 225 kg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Medicina Veterinária; Agronomia Cynodon spp.; Phyllochron; Marked tillers; Urea.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/32147

Patterns of use of time by heifers with or without supplementation at different phenological stages of winter grasses
Provedor de dados: 2
Autores: Sichonany, Maria José de Oliveira; Rocha, Marta Gomes da; Pötter, Luciana; Salvador, Paulo Roberto; Bergoli, Tuani Lopes; Moterle, Paulo Henrique.
A joint data analysis was performed to characterize forage intake rate and patterns of use of time by grazing heifers in cold season pastures. Heifers received or not energetic supplementation at different phenological stages of grasses (vegetative, pre-flowering and flowering). Experiments involved 360 heifers with initial age of eight months and average body weight of 145 ± 17 kg, on continuous grazing method and variable number of animals.  Supplementaed heifers consumed 17.0% less forage and 22.2% less leaf blades than heifers exclusively on pasture. Grazing activity was concentrated in the afternoon shift, regardless of the feeding system and phenological stages evaluated, with the longest event of rumination during the night. Forage intake rate is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.04.05.00-4 phenological stages; Lolium multiflorum Lam.; Forage intake rate.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/30218