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| Furtado,Dermeval A.; Santos,Luana de Fátima D. dos; Nascimento,José W. B. do; Lopes,Fernanda F. M.; Costa,José H. S.. |
| ABSTRACT The aim is to characterize and to compare the black (TBG) and gray (TGG) globe temperatures in the production of sheep in the Brazilian semi-arid, using Santa Inês and Doper breeds, distributed in two thermal environments (exposed to the sun and shaded), containing 10 animals in each picket. The experimental design was completely random, 2 x 2 factorial scheme (shaded environment and sun x black and gray globe) in 46 replicates (evaluation days). There was an increase of the TBG in relation to the TGG during the evaluation times, with maximum temperature (48.1°C) at 1p.m. in the environment exposed to the sun, concomitantly with elevation of the black globe temperature and humidity index - BGHI (96.7). The result was distinct for TGG, with a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heat absorption; Surface coloring; BGHI. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000600829 |
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| Campana, Ludmila Lacerda; Modesto, Elisa Cristina; Barros, Ana Carolina Carvalho de; Zanella, Pablo Gilliardi; Carvalho, Carlos Augusto Brandão de; Camargo Filho, Sérgio Traballi. |
| The ingestive behavior of crossbred heifers grazing on stargrass pasture was managed at two levels of light interception and two levels of post-grazing residual height. The experiment was conducted at Pesagro (Seropédica, Rio de Janeiro State) between April 2012 and January 2013. The grazing (GT), rumination (RT) and idling (IT) times were evaluated every 10 minutes throughout a 24-hour period. Forage samples were collected for the analysis of chemical composition and for leaf:stem ratio determination. Dry bulb, wet bulb and black globe temperatures were evaluated every hour along with the relative humidity, during grazing to characterize the environment and calculate the Black Globe Humidity Index (BGHI). The mean grazing time (6 hours) was inversely... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: BGHI; Cynodon nlemfuensis; Grazing; Idling; Morphological composition; Rumination. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24787 |
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