Abstract
This study was conducted to investigate the effects of excess dietary fluoride (F) on serum biochemical indices, egg quality, and concentrations of F in soft tissues, eggs, and serum of laying hens. Commercial laying hens (n = 576, 51 weeks of age) were randomly allotted to 6 treatments with 6 replicates of 16 birds. The basal diets contained fluorine inclusions at a level of 16 mg/kg, and graded sodium fluoride was added to the basal diet to achieve fluorine inclusions, respectively, at a level of 200, 400, 600, 800, and 1000 mg/kg in the experimental diets. Dietary F levels at 600, 800, and 1000 mg/kg decreased (P < 0.05) albumin height and yolk color, while eggshell strength and eggshell thickness significantly decreased at 800 and 1000 mg/kg, respectively, compared with the control group. Fluoride concentrations in eggshell, albumin, yolk, liver, kidney, ovary, and oviduct responded to dietary F levels positively, and F concentrations in eggshell were the highest. Fluorine concentrations in albumin and yolk increased with the feeding time at the same dietary F levels (P < 0.05). Dietary F level at 400 mg/kg increased serum calcium level and activity of glutamic oxalacetic transaminase (P < 0.05). In conclusion, dietary F levels at 600 mg/kg decreased albumin height and yolk color, while eggshell strength and eggshell thickness significantly decreased at 800 and 1000 mg/kg, respectively. F concentrations in soft tissues, albumin, yolk, and eggshell of layers had a positive correlation with dietary F levels. By disturbing Ca and phosphorus metabolism, dietary F levels affected the formation of eggshell, reducing eggshell strength and eggshell thickness.

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WHO (1973) Trace elements in human nutrition: a report of a WHO expert group. Technical series no 532. World Health Organization, Geneva
Kirck KL (1991) Biochemistry of the elemental halogens and inorganic halides. Plenum, New York, pp 19–68
Everett E (2011) Fluoride’s effects on the formation of teeth and bones, and the influence of genetics. J Dent Res 90:552–560
Perumal E, Paul V, Govindarajan V, Panneerselvam L (2013) A brief review on experimental fluorosis. Toxicol Lett 223:236–251
Sun Z, Niu R, Wang B, Jiao Z, Wang J, Zhang J, Wang S, Wang J (2011) Fluoride-induced apoptosis and gene expression profiling in mice sperm in vivo. Arch Toxicol 85:1441–1452
Ghosh D, Das Sarkar S, Maiti R, Jana D, Das UB (2002) Testicular toxicity in sodium fluoride treated rats: association with oxidative stress. Reprod Toxicol 16:385–390
Mukhopadhyay D, Chattopadhyay A (2014) Induction of oxidative stress and related transcriptional effects of sodium fluoride in female zebrafish liver. Bull Environ Contam Toxicol 93:64–70
Podder S, Chattopadhyay A et al (2010) Histopathology and cell cycle alteration in the spleen of mice from low and high doses of sodium fluoride. Fluoride 43(4):237–245
Sharma A, Chinoy NJ (1998) Role of free radicals in fluoride-induced toxicity in liver and kidney of mice and its reversal. Fluoride 31:S26
Ranjan R, Ranjan A (2015) Fluoride toxicity in animals. Springer International Publishing, New York City
Griffith-Jones W (1977) Fluorosis in dairy cattle. Vet Rec 100:84–89
Hillman D, Bolenbaugh DL, Convey EM (1979) Hypothyroidism and anaemia related to fluoride in dairy cattle. J Dairy Sci 62:416–423
Singh JL, Swarup D (1995) Clinical observations and diagnosis of fluorosis in dairy cows and buffaloes: case report. Agri Practice 16:25–30
Del Razo LM, Corona JC, Garcia-Vargas G, Albores A, Cebrian ME (1993) Fluoride levels in well-water from a chronic arsenicism area of northern Mexico. Environ Pollut 80:91–94
Bouaziz H, Croute F, Boudawara T, Soleilhavoup JP, Zeghal N (2007) Oxidative stress induced by fluoride in adult mice and their suckling pups. Exp Toxicol Pathol 58(5):339–349
Monsour PA, Kruger BJ (1985) Effect of fluoride on soft tissues in vertebrates. Fluoride 18:53–61
Yuan C, Song HH, Zhang XY, Jiang YJ, Zhang AT, Azzam MM, Zou XT (2014) Effect of expanded cottonseed meal on laying performance, egg quality, concentrations of free gossypol in tissue, serum and egg of laying hens. Anim Sci J 85(5):549–554
Pattee OH, Wiemeyer SN, Swineford DM (1988) Effects of dietary fluoride on reproduction in eastern screech-owls. Arch Environ Contam Toxicol 17(2):213–218
Guenter W, Hahn PH (1979) Fluorine toxicity and laying hen performance. Poult Sci 65:769–778
Górecki H, Chojnacka K, Dobrzański Z, Kołacz R, Górecka H, Trziszka T (2006) The effect of phosphogypsum as the mineral feed additive on fluorine content in eggs and tissues of laying hens. Anim Feed Sci Technol 128(1):84–95
Carriere D, Bird DM, Stamm JW (1987) Influence of a diet of fluoride-fed cockerels on reproductive performance of captive American kestrels. Environ Pollut 46:151–159
Whitford GM (1994) Intake and metabolism of fluoride. Adv Dent Res 8:5–14
Korr IM (1939) The osmotic function of the chicken kidney. J Cell Comp Physiol 13(2):175–193
Shupe JL (1980) Clinicopathologic features of fluoride toxicosis in cattle. J Anim Sci 51:746–758
Kebreab E, France J, Kwakkel RP, Leeson S, Darmani H, Dijkstra J (2009) Development and evaluation of a dynamic model of calcium and phosphorus flows in layers. Poult Sci 88:680–689
Hunton P (2005) Research on eggshell structure and quality: an historical overview. Revista Brasileira de Ciência Avícola 7(2):67–71
Abdel-jabbar N, Al-asheh S (2009) Factorial design for the analysis of packed-bed sorption of copper using eggshell as a biosorbent. J Environ Protec Sci 3133–139
Pasternak K, Truchlinski J (1999) Fluorine and its influence on animal bodies. Med Weter 55(10):643–645
Ensminger AH (1995) The concise encyclopedia “food and nutrition”. CRC, California
Robin JP, Cherel Y, Girard H, Geloen A, Le Maho Y (1987) Uric acid and urea in relation to protein catabolism in long-term fasting geese. J Comp Physiol B 157:491–499
Arya HO, Wittwer F, Villa A, Ducom C (1990) Bovine fluorosis following volcanic activity in the southern Andes. Vet Rec 126:641–642
Tsunoda H, Makaya S, Sakurai S, Itai K, Yazaki K, Tatsumi M (1985) Studies on the effect of environmental fluoride on goats. In: Susheela AK (ed) Fluoride toxicity. International Society for Fluoride Research, New Delhi
Yuan C, Song HH, Jiang YJ, Azzam MMM, Zhu S, Zou XT (2013) Effects of lead contamination in feed on laying performance, lead retention of organs and eggs, protein metabolism, and hormone levels of laying hens. The Journal of Applied Poultry Research 22(4):878–884
Ramaswamy M, Thangavel P, Panneer Selvam N (1999) Glutamic oxaloacetic transaminase (GOT) and glutamic pyruvic transaminase (GPT) enzyme activities in different tissues of Sarotherodon mossambicus (Peters) exposed to a carbamate pesticide, carbaryl. Pestic Sci 55:1217–1221
Gaim K, Gebru G, Abba S (2015) The effect of arsenic on liver tissue of experimental animals (fishes and mice)—a review article. International Journal of Scientific and Research Publications 5(5):1–9
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This research was funded by the earmarked fund for Modern Argo-Industry Technology Research System of China (No. CARS-41-K17) and the National Key Technology Research and Development Program (No. 2014BAD13B04).
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All animal procedures followed the guidelines of the National Institutes of Health Animal Care and Use Guidelines, Department of Environment, Forests, and Climate Change.
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Miao, L., Li, L., Qi, M. et al. Effects of Excess Dietary Fluoride on Serum Biochemical Indices, Egg Quality, and Concentrations of Fluoride in Soft Organs, Eggs, and Serum of Laying Hens. Biol Trace Elem Res 180, 146–152 (2017). https://doi.org/10.1007/s12011-017-0973-7
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DOI: https://doi.org/10.1007/s12011-017-0973-7

