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| Baliscei, Marcio Antonio; Instituto Paranaense de Assistencia Tecnica e Extencao Rural; Souza, Wander de; Instituto Paranaense de Assistência Técnica e Extensão Rural; Barbosa, Orlando Rus; Universidade Estadual de Maringá; Cecato, Ulysses; Universidade Estadual de Maringá; Krutzmann, Alexandre; Universidade Estadual de Maringá; Queiroz, Edicarlos de Oliveira; Universidade Estadual de Maringá. |
| It was evaluated the intake behavior of Nellore steers in system without shade (WS), and silvopastoral system (SP) maintained in star grass (Cynodon plectostachyus) in summer and winter. Twenty-four Nellore steers were used (12 in each system), mean age 18 months and weight of 294.5 kg. The design was completely randomized with two seasons, two treatments, 24 hours and 12 repetitions. The observations were conducted in three days, for 24 hours, with an interval of 15 minutes, with effect of the hour on the grazing behavior (GRAZ) with a maximum of 52.1% and lying ruminating (LYRUM) with a minimum of 12.3%, both at 14h. The lying idle (LYIDL) was influenced by hour with a minimum of 11,6%at 14h, and by season, with 23.9% in summer, and 13.9%, in winter.... |
| Tipo: Pesquisa de campo |
Palavras-chave: Welfare; Season; Nelore; Shadow welfare; Season; Nelore; Shadow. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/15055 |
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| Baliscei, Marcio Antonio; Instituto Paranaense de Assistência Técnica e Extensão Rural; Barbosa, Orlando Rus; Programa de Pós-Graduação em Zootecnia da Universidade Estadual de Maringá, Av. Colombo, 57020-900. Maringá Paraná Brasil; Souza, Wander de; Instituto Paranaense de Assistência Técnica e Extensão Rural; Costa, Marco Aurelio Teixeira; Universidade Estadual de Maringá; Krutzman, Alexandre; Universidade Estadual de Maringá; Queiroz, Edicarlos Oliveira; Universidade Estadual de Maringá,. |
| This study evaluated the microclimate in a system without shade (WS) and in a silvopastoral system (SP) with eucalyptus during summer and winter, by measuring the air temperature (Ta), black globe temperature (Tg), relative humidity (RH), wind speed (Ws), every 2 hours for 24 hours between rows, shade (SP) and no shade effect (WS). It was employed the randomized blocks design (months), in the plots (systems), subplots (hours) and sub-subplots (seasons). Except for Ta and RH, the Tg (24.73, 26.41ºC), Ws (3.16, 4.57 m s-1), Black globe-humidity index (BGHI) (71.83, 73.84), Thermal load index (TLI) (74.53, 76.11) and Radiant thermal load (RTL) (526.46, 595.80 W m-2), respectively for SP and WS, were higher in WS. Ta, RH and Ws had a quadratic effect of hour.... |
| Tipo: Pesquisqa de campo |
Palavras-chave: Thermal comfort; Seasons; Index; Silvopastoral; Shade thermal comfort; Seasons; Index; Silvopastoral; Shade. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/15155 |
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