Poultry Husbandry in Hot Climates—Experimental Enquiries

Lee, Douglas H. K.; Robinson, Kathleen; Yeates, N. T. M.; Scott, Margaret I. R.

doi:10.3382/ps.0240195

Cited by 68 publications

(19 citation statements)

References 5 publications

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“…Resistance to change in body temperature following abrupt increases or decreases in environmental tem- perature should indicate activation of thermoregulatory processes. Lee et al (1945) found breed differences in ability of domestic fowl to resist a change in body temperature following exposure to hot environments and different relative humidity levels. Pattern and time course of body temperature response of White Leghorn hens and Coturnix quail following changes in environmental temperature have been reported by Harrison and Biellier (1969) and Harrison et al (1972).…”

Section: Introduction G Enetic Involvement In Thermoregula-mentioning

confidence: 96%

Genetic Variation of Body Temperature of Coturnix coturnix in Two Ambient Temperatures

Becker

Harrison

1975

Poultry Science

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Coturnix quail were placed in an environmental chamber maintained at 21 degree C. and rectal temperatures taken. The birds were subjected to an abrupt change to 36 degree C. and the temperatures taken hourly for eight hours and at 25, 38 and 72 hours. Females had higher temperatures than males. When birds were moved to 36 degrees C. their temperatures rose rapidly and then dropped to a level higher than when birds were in the 21 degrees C. chamber. The genetic and total variation estimated from the analysis of variance method decreased under this sudden thermal stress condition. Birds kept in 36 degrees C. for three weeks were shifted to 21 degrees C. Their body temperature dropped sharply and then increased to a level lower than that obtained in the 36 degrees C. environment. The genetic variation was essentially zero when shifted to a lower temperature while the total variation increased.

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Section: Introduction G Enetic Involvement In Thermoregula-mentioning

confidence: 96%

Genetic Variation of Body Temperature of Coturnix coturnix in Two Ambient Temperatures

Becker

Harrison

1975

Poultry Science

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“…was 0.3°F. Heywang (1938) and Lee et al (1945) observed that there was no appreciable change in the body temperature up to 85°F., whereas Yeates et al (1941) observed that at air temperatures of 85°F. or below the relative humidity had little effect on cloacal temperature in poultry.…”

Section: Resultsmentioning

confidence: 93%

The Effect of Photoperiodicity on the Cloacal Temperature of Mature Cocks

Bajpai¹

1962

Poultry Science

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“…These data are similar to those of Fronda (1921) who reported a 2.1 C diurnal variation and Winget et al (1965) who reported a value of .85 C for the male SCWL. Yeates et al (1941), Lee et al (1945), and Wilson (1948) reported that ambient temperatures of 85 -90 F (29.4-32.2 C) marked the upper limit at which SCWL hens could maintain constant body temperature for 7 hr, with no hens surviving for 7 hr at a 105 F (40.6 C). In preliminary experiments in our laboratory, many chickens could not survive 42.0 C ambient temperatures.…”

Section: Resultsmentioning

confidence: 97%

Telemetry Measured Body Temperature of Domestic Fowl at Various Ambient Temperatures

Kadono

Besch

1978

Poultry Science

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Adult, male Single Comb White Leghorn chickens (SCWL) were housed unrestrained in individual cages in a controlled environment room with a photoperiod of 12L:12D. By means of surgically implanted radio transmitter, body temperatures were recorded hourly for five consecutive days at each of six experimental temperatures: 23, 26, 29, 32, 35, and 38 C. The data were evaluated statistically by correlogram, periodogram, and harmonic analysis. Period length of each cycle was about 24 hr at all ambient temperatures. No significant differences in deep body temperature were observed until the ambient temperature reached 32 C; but highly significant increases were detected between 32, 35, and 38 C. Diurnal differences in body temperature ranged from .6 to 1.1 C. It has been suggested that the body temperature of male chicken may be under the control of a biological clock that synchronizes with the solar day.

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Poultry Husbandry in Hot Climates—Experimental Enquiries

Cited by 68 publications

References 5 publications

Genetic Variation of Body Temperature of Coturnix coturnix in Two Ambient Temperatures

Genetic Variation of Body Temperature of Coturnix coturnix in Two Ambient Temperatures

The Effect of Photoperiodicity on the Cloacal Temperature of Mature Cocks

Telemetry Measured Body Temperature of Domestic Fowl at Various Ambient Temperatures

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