Effects of Heat and Light Crossed Gradients Room Testing on the Growth and Performance of Broiler Type Chicks

Haller, R. W.; Sunde, M. L.

doi:10.3382/ps.0520074

Cited by 6 publications

(1 citation statement)

References 8 publications

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“…Feed consumption and feed efficiency means favored the chicks brooded at 32 C. Less feed energy was needed to produce body heat in the group brooded at 32 C; and these birds were able to produce gains at predictably improved feed to gain ratios. Similar results have been reported by Deaton et al (1968) and Haller and Sunde (1973).…”

Section: Materials and Metohdssupporting

confidence: 94%

The Effect of Ambient Temperature on Carcass Energy Gain in Chickens

Husseiny

Creger

1980

Poultry Science

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A total of eighty day-old commercial broiler chicks were randomly divided into two equal groups. The birds received the same diet for 6 weeks. One group was brooded at a room temperature of 32 C and the second at 22 C for 6 weeks. At 6 weeks of age, the chicks were weighed individually and feed consumption for each treatment summarized.At the beginning and at the conclusion of the study, 7 birds were randomly selected from each temperature regimen and killed. Excreta were collected at the end of 6th week of age. Combustible energy of the diet, excreta, and the whole chick's body were determined. The body tissue samples were subjected to ether extraction and nitrogen analysis.The results indicated that: 1) the lower environmental temperature enhanced growth rate and feed consumption; 2) ambient temperature had no clear effect on metabolizable energy determination; 3) birds brooded in the cooler room environment had higher weight gain values than those grown in the warmer environment; 4) difference between the direct and indirect determinations of carcass energy was 2.5%; 5) energy per gram of dry tissue increased with decreasing ambient temperature; and 6) the energy gain value for birds reared at 22 C was higher than at 32 C; however, the improvement in efficiency was slight at the lower environmental temperature. (

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Section: Materials and Metohdssupporting

confidence: 94%

The Effect of Ambient Temperature on Carcass Energy Gain in Chickens

Husseiny

Creger

1980

Poultry Science

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Climatic Environment and Energy Metabolism in Broilers

Scheele¹,

Hel²,

Verstegen³

et al. 1987

Energy Metabolism in Farm Animals

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The effects of light illuminance and wavelength on the growth of broiler chickens

1982

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The effects of light illuminance and wavelength on the growth of male and female broiler chickens from day-old to 8 weeks of age were studied. Different coloured lights, at equal illuminance and peak wavelengths of 425, 525 and 610 nm and a broad-spectrum white light of median wavelength 560 nm had no significant effect on the growth rate or cumulative food intake of birds of either sex.The performance of male broilers was unaffected by light of different illuminances, equal to 0-7, 3-0, 15-0 and 46-5 lux. The weight gain of female broilers, adjusted for food intake, was progressively depressed at illuminances above 3 lux.There is probably no commercial advantage in using broad-spectrum white light at intensities above 3 lux.

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Effects of Heat and Light Crossed Gradients Room Testing on the Growth and Performance of Broiler Type Chicks

Cited by 6 publications

References 8 publications

The Effect of Ambient Temperature on Carcass Energy Gain in Chickens

The Effect of Ambient Temperature on Carcass Energy Gain in Chickens

Climatic Environment and Energy Metabolism in Broilers

The effects of light illuminance and wavelength on the growth of broiler chickens

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