Effects of taurine and housing density on renal function in laying hens

Zhi-gang, MA; Gao, Yang; Ma, Haitian; Zheng, Liuhai; Dai, Bin; Miao, Jinfeng; Zhang, Yuanshu

doi:10.1631/jzus.b1600014

Cited by 9 publications

(4 citation statements)

References 53 publications

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“…Generally, birds placed on 0.004 to 0.008% dietary taurine-supplemented diets possess higher and varied amounts of the studied antioxidant biomolecules both in the liver and in the kidney. The report of this research correlates with the finding of Ma et al (2016) that reported an increase in the activity of total antioxidant capability of laying hens when their diets were supplemented with taurine. Anand et al, 2010 also reported a significant (p<0.05) increase in the liver GSH level of the orally taurine administered rats at a dose of between 50 mg to 500 mg in 50% normal saline, but a reduction in the rats' kidney GSH level as compared with the control group.…”

Section: Discussionsupporting

confidence: 88%

Antioxidant Parameters, Lipid Profiles and Performance Studies of Broiler Birds Fed Graded Level Taurine-Supplemented Diets

Ogunbode

Oladimeji

Salaudeen

et al. 2020

Fountain Journal of Natural and Applied Sciences

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The research was targeted towards monitoring the activities of antioxidant enzymes, levels of non-enzymic antioxidants, lipid profiles and performance activities of broiler birds fed taurine-supplemented diets. One hundred and eighty 1-day-old unsexed arbor acre strain broiler birds were randomly distributed into five dietary treatments, six replicates per treatment and six birds per replicate. Treatments 1 to 5 contained 0%, 0.002%, 0.004%, 0.006% and 0.008% taurine supplements respectively as add-over. Treatment 1 served as the control diet. The birds were grouped and brooded for a week and the experiment lasted for six weeks. The birds were sacrificed and the liver, kidneys and serum were collected. The activities of catalase and myeloperoxidase, concentrations of reduced glutathione and nitric oxide as well as the serum lipid profiles were monitored. Liver catalase activities was highest for birds placed on 0.006 and 0.008% taurine-supplemented diets as compared with those on 0% taurine-supplemented diet. The trend was similar for the kidney reduced glutathione concentration. Liver nitric oxide concentrations and kidney myeloperoxidase activities were significantly higher (p<0.05) for birds placed on 0.004%, 0.006% and 0.008% taurine-supplemented diets as compared to birds placed on the control diets. High density lipoprotein was highest for birds on a 0.008% diet and lowest for birds on the control diet. The best feed conversion ratio was obtained for birds placed on 0.008% taurine-supplemented diet. Taurine-supplemented diets at between 0.002 and 0.008% favoured birds’ antioxidant defense mechanisms, had no deleterious effect on lipid profile, and equally improved the performance characteristics of broiler birds.

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Section: Discussionsupporting

confidence: 88%

Antioxidant Parameters, Lipid Profiles and Performance Studies of Broiler Birds Fed Graded Level Taurine-Supplemented Diets

Ogunbode

Oladimeji

Salaudeen

et al. 2020

Fountain Journal of Natural and Applied Sciences

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“…Dietary taurine (0.1%) was shown to significantly alleviate NF-κB DNA-binding activity in chicken liver [ 363 ] and layer oviduct tissue [ 364 ], which was initially increased due to high-density housing systems. Interestingly, in the chicken renal tissue, the same dose of dietary taurine was able to decrease the NF-κB DNA-binding activity only in the low-density housing environment [ 365 ].…”

Section: Nutritional Modulation Of Nf-κb In Poultrymentioning

confidence: 99%

Redox Homeostasis in Poultry: Regulatory Roles of NF-κB

2021

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Redox biology is a very quickly developing area of modern biological sciences, and roles of redox homeostasis in health and disease have recently received tremendous attention. There are a range of redox pairs in the cells/tissues responsible for redox homeostasis maintenance/regulation. In general, all redox elements are interconnected and regulated by various means, including antioxidant and vitagene networks. The redox status is responsible for maintenance of cell signaling and cell stress adaptation. Physiological roles of redox homeostasis maintenance in avian species, including poultry, have received limited attention and are poorly characterized. However, for the last 5 years, this topic attracted much attention, and a range of publications covered some related aspects. In fact, transcription factor Nrf2 was shown to be a master regulator of antioxidant defenses via activation of various vitagenes and other protective molecules to maintain redox homeostasis in cells/tissues. It was shown that Nrf2 is closely related to another transcription factor, namely, NF-κB, responsible for control of inflammation; however, its roles in poultry have not yet been characterized. Therefore, the aim of this review is to describe a current view on NF-κB functioning in poultry with a specific emphasis to its nutritional modulation under various stress conditions. In particular, on the one hand, it has been shown that, in many stress conditions in poultry, NF-κB activation can lead to increased synthesis of proinflammatory cytokines leading to systemic inflammation. On the other hand, there are a range of nutrients/supplements that can downregulate NF-κB and decrease the negative consequences of stress-related disturbances in redox homeostasis. In general, vitagene–NF-κB interactions in relation to redox balance homeostasis, immunity, and gut health in poultry production await further research.

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“…Even though it has been shown that diets supplemented with taurine can improve the taurine deposition in egg yolks [8] and can have benefits for kidneys [9], the cost of dietary taurine supplementation is significant. So, other methods have been used to improve taurine deposition in animal production.…”

Section: Introductionmentioning

confidence: 99%

Impact of Dietary Supplementation of Cysteamine on Egg Taurine Deposition, Egg Quality, Production Performance and Ovary Development in Laying Hens

Chen,

Wang,

Tang

et al. 2023

Animals

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This study aimed to examine the effect of dietary cysteamine on yolk taurine content in hens during different egg production periods. In Exp. 1, China Agricultural University-3 (CAU-3) hens at the peak stage of egg production (aged 31 wks) were used to explore the effect of diets supplemented with 0.1% cysteamine on yolk taurine content, egg quality and production performance. In Exp.2, two breeds of hens (half Hy-Line Brown and half CAU-3 hens) at the late stage of egg production (68 wks) were used to investigate the influence of diets supplemented with 0, 0.02%, 0.04%, 0.08% or 0.10% cysteamine on yolk taurine content, egg quality, production performance and ovary development. In Exp.1, diets supplemented with 0.1% cysteamine significantly increased yolk taurine content (p < 0.05) without negative influence on production performance or egg quality. In Exp.2, the highest yolk taurine content was observed when cysteamine was supplemented at 0.08% (p < 0.001). However, supplemental cysteamine linearly or quadratically decreased production performance over the first few weeks of feeding, and the effects disappeared with continued feeding (p < 0.05). In conclusion, this study indicated that cysteamine supplementation benefits yolk taurine deposition in hens at both peak and late stage of egg production, but hens at the late stage of egg production show depressed production performance and egg quality.

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Effects of taurine and housing density on renal function in laying hens

Cited by 9 publications

References 53 publications

Antioxidant Parameters, Lipid Profiles and Performance Studies of Broiler Birds Fed Graded Level Taurine-Supplemented Diets

Antioxidant Parameters, Lipid Profiles and Performance Studies of Broiler Birds Fed Graded Level Taurine-Supplemented Diets

Redox Homeostasis in Poultry: Regulatory Roles of NF-κB

Impact of Dietary Supplementation of Cysteamine on Egg Taurine Deposition, Egg Quality, Production Performance and Ovary Development in Laying Hens

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