RESPOSTAS FISIOLÓGICAS DE CAPRINOS BOER E ANGLO-NUBIANA EM CONDIÇÕES CLIMÁTICAS DE MEIO-NORTE DO BRASIL
2007
Luís Madeira Martins Júnior | Amilton Paulo Raposo Costa | Danielle Maria Machado Ribeiro | Sílvia Helena Nogueira Nogueira Turco | Maria Christina Sanches Muratori
This work was carried out to measure the adaptability on the heart rate (HR), respiratory frequency (RF) and rectal temperature (RT) in Boer and Anglo-nubiana goats at Meio-Norte, Brazil. Fourteen male goats were used (7 = Boer and 7 = Anglo-nubiana) in the same conditions. In the same days and times were too collected the temperature and (TA) and relative humidity of the air (UR). The SNK test was used to compare the means. The results obtained to Bôer and Anglo-nubiana was, in dry period, HR (beats/minutes) = 79.3±16.1 and 97.0±18.3; RF (mov.min-1.) = 25.5±5.9 and 34.4±13.3; TR (oC) = 39.2±0.4 and 39.4±0.4. In rain period, in the same breed order HR = 75.1±6.9 and 82.5±6.0; RF (mov./min.-1) = 27.7±4.47 e 26.7±5.5; TR (oC) = 39.3±0,4 and 39.4±0,4. The TA, in oC, and UR, in %, were in the dry period 33.0±1.5 and 55.0±7.43; and in the rain period, 30.0±2.02 and 81.2±6,99. The Anglo-nubiana goats showed the highest HR, RF and RT relative to the Boer goats in the dry and in the rain periods that indicate the Boer goats are better adaptable in the hot stress conditions.
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