The Influence of Environmental Temperature Upon Egg Components of Domestic Fowl

Carmon, Louie G.; Huston, Till M.

doi:10.3382/ps.0441237

Cited by 13 publications

(3 citation statements)

References 5 publications

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“…The data confirm those of Mueller (1961), Carmon and Huston (1965), Wilson et al (1972), and de Andrade et al (1974. The data confirm those of Mueller (1961), Carmon and Huston (1965), Wilson et al (1972), and de Andrade et al (1974.…”

Section: Relative Humidity Studies As Shown Insupporting

confidence: 88%

Effect of Environment and Dietary Energy on Caged Leghorn Pullet Performance

et al. 1976

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Three trials of 6-month duration each were conducted with 24-week old Leghorn pullets in five environmental chambers. In each trial two birds were placed in each of 54 cages in each chamber. All birds were exposed to a 14-hour light regime and to one of four relative humidity levels (50, 60, 70, 80%) and one of three dry bulb temperatures (13°, 21.5°, 29.5° C). Isonitrogenous diets of varying energy levels [3080, 2648, 2220 kilocalories of metabolizable energy per kilogram (kcal. M.E./kg.)] were fed ad libitum in each chamber. Parameters in all trials included body weight gains, hen-day production, egg weight, specific gravity, Haugh units, feed intake and excretal output.Statistical analysis indicated that the best overall performance was obtained with a dry bulb temperature of either 13° or 21.5° C. and with a dietary energy level of 2648 kcal. M.E./kg. The relative humidity exerted no significant effects on any of the parameters except excretal output at 29.5° C. At this temperature, a significant linear relationship was observed between relative humidity and excretal output as well as excretal moisture. The most striking observation was the inverse relationship of dietary energy to feed intake and excretal output, irrespective of temperature and relative humidity, and also the inverse relationship of temperature to excretal output, irrespective of relative humidity and dietary energy.

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Section: Relative Humidity Studies As Shown Insupporting

confidence: 88%

Effect of Environment and Dietary Energy on Caged Leghorn Pullet Performance

et al. 1976

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“…Therefore, the smaller yolks produced by birds kept at high environmental temperatures are probably caused by both slower yolk secretion rates and shorter formation times. The fact that yolk and albumen are reduced in proportion when hens are exposed to high environmental temperatures (Carmon and Huston, 1965;Smith and Oliver, 1972b) lends support to this theory ( Table I). The fact that yolk and albumen are reduced in proportion when hens are exposed to high environmental temperatures (Carmon and Huston, 1965;Smith and Oliver, 1972b) lends support to this theory ( Table I).…”

Section: ?mentioning

confidence: 83%

“…Many workers have noted that high environmental temperature leads to reduction in the mean weight of eggs produced by laying hens (Bennion and Warren, 1933;Warren, 1948;Skoglund, Tomhave and Mumford, 1951 ;Huston, 1958, Carmon andHuston, 1965;Mueller, 1961;Clark and Amin, 1965). The highest environmental temperature consistent with maximum egg weight is given as 18~ by Bruekner (1936) and Warren, Conrad, Sehumacher and Avery (1950), above which the egg weight declines with an increase in temperature.…”

Section: The Effect Of Environmental Temperature On Average Egg Weightmentioning

confidence: 99%

Changes in the average weight and shell thickness of eggs produced by hens exposed to high environmental temperatures—A review

Smith

1974

Trop Anim Health Prod

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The decline in egg weight which occurs at high environmental temperatures (above 26~ is due mainly to the effect of heat stress per se and not to the effect of diminished feed intake. This is particularly true in the case of the egg shell component, the reduction in thickness of which is apparently due to alkalosis of the blood caused by the loss of excessive amounts of carbon dioxide by panting. The reduction in weight of albumen and yolk is also due mainly to heat stress per se but the explanation of the mechanism involved awaits further investigation.

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The Nutritive Value of Eggs

Cook¹,

Briggs²

1986

Egg Science and Technology

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The Influence of Environmental Temperature Upon Egg Components of Domestic Fowl

Cited by 13 publications

References 5 publications

Effect of Environment and Dietary Energy on Caged Leghorn Pullet Performance

Effect of Environment and Dietary Energy on Caged Leghorn Pullet Performance

Changes in the average weight and shell thickness of eggs produced by hens exposed to high environmental temperatures—A review

The Nutritive Value of Eggs

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