Grazing behavior and spatial distribution of feces of Young bulls in silvopastoral systems and Marandu monoculture in the pre-Amazon region/ Comportamento de pastejo e distribuicao espacial de fezes de tourinhos em sistemas silvipastoris e monocultura de capim-Marandu na regiao pre-amazonica

The objective was to evaluate the grazing behavior and the spatial distribution of feces of F1 young bulls from the cross between Nellore and Guzera on pastures of Urochloa brizantha cv. Marandu in silvopastoral systems composed of babassu palm (Attalea speciosa) and Marandu monoculture in the Pre-A...

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Published in:Acta scientiarum. Animal sciences 2017-01, Vol.39 (1), p.83
Main Authors: de Araujo, Ricardo Alves, Rodrigues, Rosane Claudia, Costa, Clesio dos Santos, de Sousa Santos, Francisco Naysson, Cutrim, Jose Antonio Alves, Jr, de Jesus, Ana Paula Ribeiro, Shigaki, Francirose, Araujo, Jocelio dos Santos
Format: Article
Language:Spanish
Subjects:
Cattle
Monoculture
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Summary:The objective was to evaluate the grazing behavior and the spatial distribution of feces of F1 young bulls from the cross between Nellore and Guzera on pastures of Urochloa brizantha cv. Marandu in silvopastoral systems composed of babassu palm (Attalea speciosa) and Marandu monoculture in the Pre-Amazon region of the state of Maranhao. Animals were evaluated in four systems consisting of 0, 80, 131, 160 palms [ha.sup.-1], characterizing monoculture (mono), low density of palm trees (LD), medium density of palm trees (MD) and high density of palm trees (HD) during the rainy (RE) and dry (DE) periods. Five animals (repetitions) were used in each system, with 231-303 days of age and 180 [+ or -] 15 kg body weight. Determinations of behavioral patterns were made by instant sampling, at 10 min intervals. In each system, we demarcated 50 squares of 100 [m.sup.2], which served as useful area to evaluate the dispersion of feces. The grazing behavior was influenced by the sward structure, which, in turn, was influenced by densities of palm trees, due to shading. The distribution of feces was affected by both the presence of babassu plantations and periods. The silvopastoral systems made the environment more pleasant to animals, since activities considered more stressful and avoided during the daytime were performed by animals of these environments, unlike animals in the monoculture system. Keywords: babassu, sward structure, dispersal, idle, palm trees, rumination. Objetivou-se avaliar o comportamento de pastejo e a distribuicao espacial de fezes de tourinhos F1 do cruzamento de Nelore com Guzera em pastagens de Urochloa brizantha cv. Marandu em sistemas silvipastoris compostos por palmeiras de babacu (Attalea speciosa) e em monocultivo de capim-Marandu na regiao pre-amazonica maranhense. Os animais foram avaliados em quatro sistemas, sendo 0, 80, 131, 160 palmeiras [ha.sup.-1], caracterizando monocultura (mono), baixa densidade de palmeiras (BDP), media densidade de palmeiras (MDP) e alta densidade de palmeiras (ADP), respectivamente, durante os periodos chuvoso (PC) e seco (PS). Foram utilizados cinco animais (repeticoes) em cada sistema, os animais tinham entre 231 e 303 dias de vida e peso vivo de 180 [+ or -] 15 kg. As medidas dos padroes comportamentais foram realizadas por colheita instantaea, a intervalos de 10 min. Em cada sistema foram demarcados 50 quadrados de 100 [m.sup.2], que serviram como area util para avaliar a dispersao das fezes. Observou-se qu
ISSN:1806-2636
1807-8672
DOI:10.4025/actascianimsci.v39i1.33085