Light in Relation to the Experimental Modification of the Breeding Season of Turkeys

Scott, H. M.; Payne, Loyal F.

doi:10.3382/ps.0160090

Cited by 48 publications

(13 citation statements)

References 11 publications

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“…In quail, birds kept under red illumination produced more eggs compared to birds reared under green or blue light (Woodward et al, 1969). Similarly, turkeys reared under white or red light spectra produced more eggs rather than blue light (Scott and Payne, 1937). Therefore, our data are consisted with all of these results mentioned above (Pyrzak et al, 1987, Woodward et al, 1969Scott and Payne, 1937), who suggested that egg production was affected by the light spectrum, and red light illumination had a positive effect on egg production of laying hens.…”

Section: Discussionsupporting

confidence: 71%

“…Similarly, turkeys reared under white or red light spectra produced more eggs rather than blue light (Scott and Payne, 1937). Therefore, our data are consisted with all of these results mentioned above (Pyrzak et al, 1987, Woodward et al, 1969Scott and Payne, 1937), who suggested that egg production was affected by the light spectrum, and red light illumination had a positive effect on egg production of laying hens. The reason of these results could be attributed to the variation of wavelength of light where long wavelengths of light (towards orange-red spectrum) penetrate the skin and skull more efficiently than short wavelengths (towards blue-green spectrum) leading to improved reproductive performance of birds (Solangi et al, 2004).…”

Section: Discussionsupporting

confidence: 71%

“…Thus, the monochromatic light effects on production performance and quality of the products of different poultry species have been investigated. Studies with Japanese quails (Woodard et al, 1969) and turkeys (Scott and Payne, 1937) reported that red illumination produced more eggs compared to birds reared under green or blue light. Pyrzak et al (1987) reported that total egg production was increased in the laying hen reared under red light, but it was decreased under blue light.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Monochromatic Light on Sexual Maturity, Production Performance and Egg Quality of Laying Hens

Min

Hossan

Akter

et al. 2012

Avian Biology Research

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A study was conducted to evaluate the effect of monochromatic light on sexual maturity, production performance, and egg quality of laying hens. A total of 144 14-week-old Hy-Line Brown chickens were reared in cages and illuminated under four different light treatment groups with three replicates (12 birds per replication, n = 12) for 14 to 60 weeks. A 60 W incandescent light bulb (IL) was used as a control, and white light (WL), blue light (BL), and red light (RL) were produced using light emitting diode lamps. The four light treatment groups each had an intensity of 20 lux. A significant delay in laying was observed when pullets were reared under BL compared to all the other light treatments. By contrast, pullets reared under RL laid significantly earlier than those under IL and BL. Hens reared under RL produced significantly higher number of eggs than those under IL and BL, and hens reared under WL produced more eggs than those under BL from 18 to 60 weeks. Feed intake was significantly increased when birds were reared under RL compared to WL and BL. The egg weight was significantly higher in BL compared to WL and RL from 41 to 50 weeks. The FCR was significantly increased when birds were reared under RL compared to other light treatments from 31 to 40 weeks and from 18 to 60 weeks. By contrast, birds reared under RL exhibited significantly increased egg shell thickness compared to birds reared under IL and BL. The ovary weight of laying pullets grown under WL was significantly higher compared to other treatments at 16 weeks of age. It is concluded that birds reared under RL matured earlier, increased egg production and egg shell thickness, but feed conversion rate was not improved under RL.

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Section: Discussionsupporting

confidence: 71%

Section: Discussionsupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

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Effect of Monochromatic Light on Sexual Maturity, Production Performance and Egg Quality of Laying Hens

Min

Hossan

Akter

et al. 2012

Avian Biology Research

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“…In turkeys, the neuroendocrine reflex controlling reproduction exhibits maximum sensitivity to orange-red light (Scott and Payne, 1937), so the objective of the present research was to monitor egg production, feed consumption, and body weight of Large White turkey hens that had been exposed to red or 'Published with the approval of-the Director of the South Carolina Agricultural Experiment Station as Technical Contribution No. 1964. white light during the prebreeder period and maintained on red or white light at two intensities during the breeder period.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Red and White Light During the Prebreeder and Breeder Periods on Egg Production and Feed Consumption in Large White Turkeys

et al. 1982

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Large White turkey hens were conditioned with 5 lx of white or red incandescent light from 20 to 32 weeks of age. Hens from both of these groups were given white or red incandescent light at two intensities (approximately 85 and 160 lx) during a 20-week breeder period. Feed consumption was greatest for hens no white light during the prebreeder period (P less than or equal to .01), but hens on red light consumed the greatest amount of feed during the breeder period. The only consistent finding concerning egg production was the hens exposed to high intensity (160 lx) white light, regardless of whether the prebreeder light was white or red, had the poorest egg production (P less than or equal to .01). It is concluded that red light during the prebreeder or breeder periods is not beneficial for egg production over that achieved with low intensity white incandescent light, and that bright white incandescent light is deleterious to egg production.

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“…Thus, LED lights are becoming popular worldwide. However, most researchers have utilized monochromatic LED light colour to evaluate the performance of laying hens (Kim et al, 2012;Rozenboim et al, 1998), broiler breeders (Mobarkey et al, 2010), Japanese quail (Woodard et al, 1969), and turkey (Scott and Payne, 1937). Therefore, few studies are available that have examined a combination of light colours on ovarian morphology, reproductive hormones, and biochemical blood parameters in laying hens.…”

Section: Introductionmentioning

confidence: 99%

Effect of Monochromatic and Combined Light Colour on Performance, Blood Parameters, Ovarian Morphology and Reproductive Hormones in Laying Hens

Hassan

Sultana

Choe

et al. 2013

Italian Journal of Animal Science

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We evaluated the effect of monochromatic and combined light emitting diode (LED) light colour on performance, ovarian morphology, and reproductive hormone and biochemical blood parameters in laying hens. A total of 600 Hy-line Brown pullets, 12 weeks of age, were divided (25×4×6 = birds × replications × treatments) as follows: red (R), green (G), blue (B), and combinations of R→G and R→G→B treatments. Fluorescent white light (W) was the control. The results showed that higher egg production was found under the monochromatic R and combination R→G treatments, and that heavier eggs were laid by the B and G treatments (P<0.05). Consequently, better feed conversion ratio was attained in the R→G treatment. Serum follicle stimulating hormone and 17 -estradiol levels were significantly higher in the R and R→G treatments. B treated birds came into production 15 days later than those treated with R light. Organ weight (ovary and stroma) and ovarian follicle numbers (1-3 and 4-6 mm) were significantly higher in R treated birds, as well as serum glucose and triglyceride contents. Serum IgG concentrations and the heterophil to lymphocyte ratio were not influenced by light colour. In these laying hens, 14 h R with 2 h G light in the later part of the day increased reproductive hormone levels, ovarian weight, and follicle number and hence increased egg production. Thus, these results suggest that a combination of R→G light may be comparable with monochromatic R light to enhance egg production in laying hens.

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Light in Relation to the Experimental Modification of the Breeding Season of Turkeys

Cited by 48 publications

References 11 publications

Effect of Monochromatic Light on Sexual Maturity, Production Performance and Egg Quality of Laying Hens

Effect of Monochromatic Light on Sexual Maturity, Production Performance and Egg Quality of Laying Hens

The Effects of Red and White Light During the Prebreeder and Breeder Periods on Egg Production and Feed Consumption in Large White Turkeys

Effect of Monochromatic and Combined Light Colour on Performance, Blood Parameters, Ovarian Morphology and Reproductive Hormones in Laying Hens

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