Growth performance, antioxidant status, and nonspecific immunity in broilers under different lighting regimens

Zheng, Libing; Ma, Y. E.; Gu, Longjian; Yuan, Dong; Shi, Meng; Guo, Xishan; Zhan, Xinqiao

doi:10.3382/japr.2012-00713

Cited by 38 publications

(39 citation statements)

References 45 publications

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“…Several prior studies have compared the impact of lighting programs on health status in broiler flocks. Zheng et al (2013) observed that IL significantly improved nonspecific immunity and serum melatonin levels in broilers. However, Balog et al (1997) found that clinical chemistries of birds were not affected by IL activity.…”

Section: Serum Biochemical Parametersmentioning

confidence: 89%

“…The results of Schwean-Lardner's study indicated that entailed an examination of the impact of graded levels of day length (14,17,20, and 23 h) on causes of mortality, bird mobility, footpad health, and ocular size, suggests that 7 h per day is an appropriate length of darkness for maximizing broiler welfare based on the observed health parameters (Schwean-Lardner et al, 2013). Similarly, Zheng et al (2013) found that the ILs scheme INL II, which entailed 17L:3D:1L:3D, yielded improved antioxidant status in broilers compared to INL I, which included 16L:2D:1L:2D:1L:2D. The two experimental groups were subjected to equivalent periods of total darkness, but the INL II group experienced longer dark periods.…”

Section: Introductionmentioning

confidence: 99%

“…Skrbic et al (2015) reported that treatment with gradually increasing photoperiods was significantly superior to the 23 h lighting program for all periods, because it significantly reduced the incidence of leg abnormalities and mortality due to sudden death syndrome or other causes compared to the 23 h lighting program. In terms of health, increasing lighting programs were also reported to be superior to near CL for broiler chickens (Zheng et al, 2013). In addition, In view of welfare conditions, light regimen should be optimised (Meluzzi and Sirri, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Intermittent Lighting on Broiler Growth Performance, Slaughter Performance, Serum Biochemical Parameters and Tibia Parameters

Yang

Xing

Wang

et al. 2015

Italian Journal of Animal Science

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The objective of this study was to investigate the effects of intermittent lighting (IL) on broiler growth and slaughter performance as well as serum biochemical and tibia parameters. Two hundred and eighty 7-d-old Ross 308 broilers were selected and reared from 8 to 42 d under IL photoperiods of either 2 hours of light:2 hours of dark (2L:2D) or 4 hours of light:4 hours of dark (4L:4D), or under continuous lighting (CL). On day 42, body weight of broilers raised in the 4L:4D photoperiod was significantly increased compared to those reared in the 2L:2D photoperiod. The average daily feed intake (ADFI) of broilers in IL was significantly less than broilers in CL. The feed conversion of broilers raised in the 4L:4D photoperiod was significantly more efficient than broilers in CL. The intestinal tract weight was greater in birds raised in the 4L:4D photoperiod compared to birds in CL. Similarly, the eviscerated yield with giblet and eviscerated carcass weights in birds reared in the 4L:4D photoperiod were significantly higher than corresponding weights observed in broilers raised in CL. Serum total protein concentration was distinctly higher in birds raised in the 4L:4D photoperiod than that in the 2L:2D photoperiod. In addition, the bone elastic modulus of birds reared in the 4L:4D photoperiod was greater than measurements observed in the 2L:2D photoperiod. Accordingly, we concluded that the 4L:4D photoperiodic lighting schedule was superior to both the 2L:2D photoperiod and CL in broiler production.

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Section: Serum Biochemical Parametersmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Intermittent Lighting on Broiler Growth Performance, Slaughter Performance, Serum Biochemical Parameters and Tibia Parameters

Yang

Xing

Wang

et al. 2015

Italian Journal of Animal Science

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“…Corresponding to the above-mentioned results, light intensity (10 vs. 30 lux) did not influence serum melatonin concentrations [126]. In contrast, green light was shown to promote melatonin secretion [124,142,162,163] by enhancing the expressions of positive clock genes and repressing the expressions of negative clock genes [162]. The pineal contains a special photosensitive pigment that is sensitive to short wavelengths [164,165].…”

Section: Effect Of Light Regimes On the Immune System-possible Mechanmentioning

confidence: 64%

Impact of Housing Environment on the Immune System in Chickens: A Review

Hofmann

Schmucker

Bessei

et al. 2020

Animals

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During their lifespan, chickens are confronted with a wide range of acute and chronic stressors in their housing environment that may threaten their welfare and health by modulating the immune system. Especially chronic stressful conditions can exceed the individual’s allostatic load, with negative consequences for immunity. A fully functional immune system is mandatory for health and welfare and, consequently, also for high productivity and safe animal products. This review provides a comprehensive overview of the impact of housing form, light regime as well as aerial ammonia and hydrogen sulfide concentrations on the immune system in chickens. Certain housing conditions are clearly associated with immunological alterations which potentially impair the success of vaccinations or affect disease susceptibility. Such poor conditions counteract sustainable poultry production. This review also outlines current knowledge gaps and provides recommendations for future research.

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“…ML plays important roles in the photoperiod-related circadian rhythm, embriyonic growth and ovary development by altering the synthesis and secretion of folliclestimulating hormone (FSH) with LH (Chuffa et al, 2011). ML helps the immune responses in poultry (Moore and Siopes, 2003) by increasing lymphocytes poliferation (Kliger et al, 2000) and antibody formation (Zheng et al, 2013). ML treatment increased the activity of B and T lymphocytes (Brennan et al, 2002) and total leukocyte count and lymphocyte percentage in poultry (Abozahra et al, 1998;Brennan et al, 2002;Hodallah et al, 2011).…”

Section: Melatonin Secretion In Birdsmentioning

confidence: 99%

Melatonin’in Kanatlı Hayvanlarda Önemi

Çalışlar

Yeter

Şahi̇n

2018

Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi

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Intensive production practices, faulty maintenance and feeding, unsuitable keeping conditions, antinutritional factors in feeds and similar abnormalities lead to irregularities in both hormone and enzyme systems in poultry. Especially, due to disorders in endocrine system, a specific hormone, melatonin, can not be produced or underproduced, and thus its metabolic and physiological functions are negatively affected in the organisms. Melatonin (ML) is one of the important hormones that prevent metabolic and physiological disorders in poultry but does not attract attention by poultry scientist. ML regulates the brain's biological clock, acts on respiration, circulation, excretion, reproduction and immunity system. ML helps regulate feed consumption, energy metabolism and body heat. It also provides elimination of free radicals in the body. ML stimulates growth hormone secretion and, thus, effects growth performance of poultry positively. It is considered necesary to focus more effectively on the melatonin hormone, which is a positive contribution to animal welfare by correcting metabolic-physiological disorders in poultry. In this review, the definition of melatonin, its interaction with other hormones, its effect on the physiological and metabolic functions of poultry were examined.

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Growth performance, antioxidant status, and nonspecific immunity in broilers under different lighting regimens

Cited by 38 publications

References 45 publications

Effects of Intermittent Lighting on Broiler Growth Performance, Slaughter Performance, Serum Biochemical Parameters and Tibia Parameters

Effects of Intermittent Lighting on Broiler Growth Performance, Slaughter Performance, Serum Biochemical Parameters and Tibia Parameters

Impact of Housing Environment on the Immune System in Chickens: A Review

Melatonin’in Kanatlı Hayvanlarda Önemi

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