The Influence of Daylength and Environment on Reproduction, Broodiness, and Mortality of Turkeys

Marsden, S. J.; Lucas, Linda M.; Wilson, S. P.

doi:10.3382/ps.0450668

Cited by 8 publications

(5 citation statements)

References 10 publications

(8 reference statements)

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“…The results of the present experiment and of Marsden et al (1966) showed no temperature effect on fertility or hatchability. These findings differ from those of Heywang (1944) and Glick et al (1959).…”

Section: Resultscontrasting

confidence: 44%

“…In comparing constant environmental temperatures with uncontrolled ones, Mitchell and Kosin (1954) and Kosin and Mitchell (1955a) found that broodiness increased in constant temperature pens, resulting in lower egg production. Marsden et al (1966) also observed an increasing incidence of broodiness during the summer months.…”

mentioning

confidence: 77%

“…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. Marsden et al (1966), on the other hand, found that fertility and hatchability under their experimental conditions were unaffected by temperature and light.…”

mentioning

confidence: 90%

“…during the breeding season was detrimental to egg production due to increased broodiness. Marsden et al (1966) noted that an ambient temperature of 18.3°C. provided a stimulatory effect on egg production of birds under an 11-hour photoperiod.…”

mentioning

confidence: 98%

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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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Section: Resultscontrasting

confidence: 44%

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confidence: 77%

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confidence: 90%

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confidence: 98%

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

1972

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“…Broodiness, a unique characteristic of most domestic geese, is associated with atrophy of ovaries and fallopian tubes, which consequently terminate egg production ( Romanov et al, 2002 ). Mounting evidence has shown that various environmental factors, such as length of photoperiod ( Marsden et al, 1966 ; Geng et al, 2014 ) and environmental temperature ( Thomason et al, 1976 ) induce the nesting behavior of female poultry. Estrogen ( E 2 ), progesterone ( P 4 ), prolactin ( PRL ), vasoactive intestinal peptide ( VIP ), dopamine ( AD ), and follicle-stimulating hormone ( FSH ) secreted by the hypothalamic-pituitary-gonadal axis ( Sharp et al, 1984 ; Onagbesan et al, 2009 ; Zhou et al, 2010 ; Yu et al, 2016b ) have direct effects on nesting behavior.…”

Section: Introductionmentioning

confidence: 99%

Ovarian transcriptome profile from pre-laying period to broody period of Xupu goose

Qin

Wang

et al. 2021

Poultry Science

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Xupu goose, a breed from Hunan province, produces high quality and quantity of meat and liver. However, its egg production rate is low, with poor reproductive traits but strong broody performance. These characteristics decrease the economic value of Xupu goose significantly. Here, RNA-seq was used to analyze the transcriptome changes of ovaries of Xupu goose at different stages to explore the molecular mechanism of reproduction from the pre-laying period to the broody period. A total of 258 genes were differentially expressed in the 3 stages. These genes are associated with inflammation, reproduction, mutual recognition and adhesion between cells, and cytoskeleton formation, and so on. In particular, we report, for the first time, the expression patterns of MRP126, serglycin, TXNIP, and FZD2 during the pre-laying, egg-laying, and broody periods of goose ovaries. Functional analysis by GO annotation revealed that GO terms were mainly involved in actin, cell signal transduction and regulation, and cellular components. Three pathways, including focal adhesion (gga04510), ECM-receptor interaction (gga04512), and N-Glycan biosynthesis (gga00510), were significantly enriched in the three groups. These findings provide a basis for further exploration of profiles of goose ovaries to improve egg production of Xupu goose.

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The Beltsville Small White Turkey

Marsden¹

1967

World's Poultry Science Journal

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The Influence of Daylength and Environment on Reproduction, Broodiness, and Mortality of Turkeys

Cited by 8 publications

References 10 publications

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

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

Ovarian transcriptome profile from pre-laying period to broody period of Xupu goose

The Beltsville Small White Turkey

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