Influence of Temperature on the Reproductive Performance of the Broad Breasted Bronze Toms

Kosin, I. L.; Mitchell, Madeleine E.; Burrows, William

doi:10.3382/ps.0310180

Cited by 8 publications

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“…There appears to be little doubt, however, that reproduction of males of many avian species is influenced by light although there is much disagreement about the relative importance of various environmental factors (see Bissonnette, 1936;Marshall, 1951;and Wolfson, 1952). Better fertility has been observed by Kosin et al (1952) and Burrows and from toms lighted for about 13 hours and kept at about 50 degrees F. than from birds lighted but left outside continuously when the weather was frosty.…”

Section: Review Of Literaturementioning

confidence: 98%

Semen Production in the Turkey Male

1955

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Section: Review Of Literaturementioning

confidence: 98%

Semen Production in the Turkey Male

1955

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“…Hatchability of fertile eggs increased to late February (point of highest production) followed by a decline as the breeding season progressed. Pre-conditioning of males by supplemental heat when they were in a cold environment was reported by Kosin et al (1952) and Kosin and Mitchell (1955a) to be advantageous for fertility under natural mating conditions. Kosin and Mitchell (1955b) also reported that the cooling of Broad Breasted Bronze males in the months of May, June and July, at least temporarily, halted the seasonal downward trend in fertility.…”

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confidence: 97%

A Study of Certain Environmental Factors on the Reproductive Performance of Large White Turkeys

1972

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The study presented was designed to determine the effects of light intensities of 5.4 and 86.1 lux, of laying cages versus conventional litter floors and of constant environmental temperatures of 12.8°, 21.1° and 2°.4°C. on the reproductive performance of Large White female turkeys.A light intensity of 5.4 lux yielded comparable results to that of 86.1 lux when 16 hours of light were provided.Turkey females in laying cages laid at a higher rate over the first 12 weeks of production and showed an increase in feed consumption and body weight over those maintained in conventional litter pens. No significant differences were observed between the two pen environments for total egg production, hatchability of fertile eggs and egg weights. Percentage settable eggs and percentage fertility were lower from females maintained in cages. The percentage of cracked and broken, and soft-and thin-shelled eggs from cage birds increased over the production period.A constant pen temperature of 29.4° C. dramatically reduced egg production below that obtained from females maintained at 12.8° and 21.1 °C. The high pen temperature also reduced feed consumption, body weights, egg weights, the effectiveness of broodiness control and increased the incidence of birds molting and mortality. Fertility, hatchability, percentage settable eggs and shell thickness were unaffected by the imposed temperature environments. Pen temperatures of 12.8° and 21.°C. yielded comparable results for all reproductive parameters studied.It is concluded that reproductive potential of turkeys in the present study was maximized on conventional litter floors with constant temperatures between 12.8° and 21.1°C. and light intensities between S.4 and 86.1 lux.

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The Effects of Ambient Temperature on Production and Fertilizing Capacity of Turkey Spermatozoa

Burrows¹,

Kosin²

1953

Physiological Zoology

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Influence of Temperature on the Reproductive Performance of the Broad Breasted Bronze Toms

Cited by 8 publications

References 0 publications

Semen Production in the Turkey Male

Semen Production in the Turkey Male

A Study of Certain Environmental Factors on the Reproductive Performance of Large White Turkeys

The Effects of Ambient Temperature on Production and Fertilizing Capacity of Turkey Spermatozoa

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