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      Effects of thermal environment and supplementation levels on the physiological parameters of moxotó goats in confined and semi-confined rising systems Translated title: Efeito do ambiente térmico e suplementação nas variáveis fisiológicas de caprinos moxotó em confinamento e semiconfinamento

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          Abstract

          The objective of this work was to determine the effect of environmental variables and supplementation levels on physiological parameters of Moxotó goats in confined and semi-confined rising systems, in the Brazilian semi-arid region. The semi-confined individuals were kept on a grass based diet during the day and arrested in the end of the afternoon. The confined animals were kept in a management center, receiving two diets composed by forage cactus and maniçoba hay into two different levels (0.5 and 1.5% of the body weight). Inside the management center and in the external environment the environmental comfort parameters were set high during the afternoon period characterizing a situation of thermal discomfort for the animals. During the morning the semi-confined animals presented an average respiratory frequency (69.5 mov min-1) and rectal temperature (39.5 ºC) higher than the confined ones (62.6 mov min-1 and 39.0 ºC, respectively). The confined and semi-confined animals were able to maintain their rectal temperature within normal limits, with increase in the cardiac beatings rate and respiratory frequency. The greater percentage of the used supplementations (1.5%) seemed to increase rectal temperature in the two studied rising systems.

          Translated abstract

          Este trabalho teve os objetivos de determinar e de avaliar o efeito das variáveis ambientais e quantidade de suplementação, com concentrados, nas variáveis fisiológicas de caprinos Moxotó, confinados e semiconfinados, no semi-árido nordestino. Os animais semiconfinados foram mantidos em regime de pasto durante o dia e recolhidos ao final da tarde. Os animais confinados foram mantidos em um centro de manejo, recebendo duas dietas compostas por palma forrageira e feno de maniçoba, com duas quantidades de concentrados (0,5 e 1,5% do peso vivo). No interior do aprisco e no ambiente externo, os índices de conforto ambiental ficaram elevados no período da tarde, caracterizando situação de desconforto térmico para os animais. No período da manhã, os animais semiconfinados apresentaram freqüência respiratória média de 69,5 mov min -1 e temperatura retal de 39,5 ºC, mais elevadas que os confinados (62,6 mov min-1 e 39,0 ºC, respectivamente). Tanto os animais confinados como os semiconfinados conseguiram manter a temperatura retal dentro dos limites normais, havendo aumento nos batimentos cardíacos e na freqüência respiratória. Maior percentagem de suplementação (1,5%) provocou aumento na temperatura retal, nos dois sistemas de criação.

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          Introdução à Bioclimatologia Animal

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              Maior produção com melhor ambiente para aves, suínos e bovinos

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                eagri
                Engenharia Agrícola
                Eng. Agríc.
                Associação Brasileira de Engenharia Agrícola (Jaboticabal )
                1809-4430
                September 2008
                : 28
                : 3
                : 396-405
                Affiliations
                [1 ] Universidade Federal de Campina Grande Brazil
                [2 ] M.Sc. in Zootechnics Brazil
                [3 ] Universidade Federal da Paraíba Brazil
                Article
                S0100-69162008000300001
                10.1590/S0100-69162008000300001
                6074f321-f872-49dc-8b8b-46b2983be2d8

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-6916&lng=en
                Categories
                AGRICULTURAL ENGINEERING

                Agricultural engineering
                thermoregulation,environmental variables,native goat race,semi-arid,termorregulação,variáveis ambientais,caprino nativo,semi-árido

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