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Title: Conforto ambiental de bezerros bubalinos (Bubalus bubalis Linnaeus, 1758) em sistemas silvipastoris na Amazônia Oriental
Other Titles: Environmental comfort of buffalo calves (Bubalus bubalis Linnaeus, 1758) on silvopastoral systems in the Eastern Amazon
metadata.dc.creator: MORAES JUNIOR, Raimundo José
GARCIA, Alexandre Rossetto
SANTOS, Núbia de Fátima Alves dos
NAHÚM, Benjamim de Souza
ARAÚJO, Cláudio Vieira de
COSTA, Norton Amador da
Keywords: Ambiência
Bem-estar animal
Produção animal
Sistema de criação
Animal production
Animal welfare
Farming system
Issue Date: Dec-2010
Publisher: Instituto Nacional de Pesquisas da Amazônia
Citation: MORAES JUNIOR, Raimundo José et al. Conforto ambiental de bezerros bubalinos (Bubalus bubalis Linnaeus, 1758) em sistemas silvipastoris na Amazônia Oriental. Acta Amazonica, Manaus, v. 40, n. 4, p. 629-640, p. 629-640, dez. 2010. DOI: Disponível em: Acesso em:.
Abstract: This aim of the study was evaluating effects of two different silvopastoral systems on environmental comfort and changes in physiological parameters of buffalo calves bred in the Eastern Amazon. The experiment was conducted at Embrapa Amazônia Oriental, Belém-PA, (Afi climate type) in two periods of the year: Period 1 (April to Sep/2007) and Period 2 (Oct/2007 to March/2008). Eleven calves were included in the Silvopastoral System 1 (SSP1), with a useful shaded pasture area of 18 to 21%; and eight calves were included in the Silvopastoral System 2 (SSP2), without shading, but with a lake for swimming. Physiological status of animals bred in the two SSP's were measured (rectal temperature-RT; respiratory frequency-RF and skin temperature-ST). The Temperature and Humidity Index (THI) and Benezra´s Animal Comfort Index (ACI) were calculated, in two phases of the year, and were compared by the Tukey test (P < 0.05). THI ranged from 73.5 ± 1.3 to 82.2 ± 0.8. RT was 38.3 ± 0.26 to 39.3 ± 0.38 °C, but within the normal range for buffalo. RF ranged from 32.2 ± 9.2 to 56.5 ± 19.0 mov min-1, above the levels considered normal, and ST ranged from 23.6 ± 8.3 and 31.7 ± 5.4 °C. In both periods of the year and the two SSP's, ACIs were considered higher than ideal, ranging from 2.46 ± 0.33 to 3.31 ± 0.62 (SSP1) and 2.42 ± 0.30 to 3.45 ± 0.66 (SSP2).
ISSN: 1809-4392
Appears in Collections:Artigos Científicos - FAMEVE/CCAST

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