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نوع مقاله : مقالات پژوهشی

نویسندگان

1 *ﺍﺳﺘﺎدیار ﺑﺨﺶ تحقیقات ﻋﻠﻮم دﺍﻣﻰ، ﻣﺮﻛﺰ تحقیقات و آموزش ﻛﺸﺎﻭرزی و ﻣﻨﺎﺑﻊ ﻃﺒیعی زﻧﺠﺎن، ﺳﺎزمان تحقیقات، آموزش و ترویج ﻛﺸﺎورزی، زنجان، ﺍﻳﺮﺍن

2 استادیار پژوهشی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان زنجان

چکیده

زمینه و هدف: برای حفظ سلامت مصرف‌کنندگان مواد غذایی و نیل به ایمنی غذایی، کنترل بیشینه مجاز فلزات سنگین در مواد غذایی باید مورد توجه قرار گیرد. مطالعه حاضر با هدف بررسی غلظت عناصر سنگین مس، روی، سرب و کادمیوم در بافت‌های حیوانی دام‌های منطقه اطراف شهرک تخصصی روی انجام شد.
مواد و روش‌ها: تعداد 10 نمونه از هر یک از بافت‌های گوسفند (گوشت، کبد، کلیه و استخوان) در هر یک از چهار جهت جغرافیایی شهرک تخصصی روی تهیه شد. همچنین به‌منظور مقایسه وضعیت موجود در منطقه مورد مطالعه با مناطق غیرآلوده، منطقه شاهد (منطقه قره‌پشتلو زنجان) در نظر گرفته شد. برای هضم مواد آلی نمونه‌ها از روش خاکستر خشک استفاده شد.
یافته‌ها: بر اساس نتایج آزمایش، غلظت عنصر مس در عضله و کبد گروه شاهد به‌طور معنی‌داری بالا بود (0/05>p). غلظت عنصر روی تحت تأثیر مناطق مورد مطالعه قرار نگرفت. انباشت عنصر سرب در کبد و استخوان و کادمیوم در عضله و کبد حیوانات موجود در منطقه غرب شهرک تخصصی روی به‌طور معنی‌داری بالا بود (0/05>p). مقدار مس در بافت‌های کلیه و استخوان، مقدار سرب در بافت‌های عضله و کلیه و مقدار کادمیوم در کلیه و استخوان تحت تأثیر قرار نگرفت. انباشت مس رابطه معکوس با عناصر سرب و کادمیوم داشت.
نتیجه‌گیری: با وجود انباشت عناصر سنگین در منطقه غرب شهرک تخصصی روی، غلظت این عناصر در دام و محصولات دامی تولید شده در حومه شهرک در دامنه حد مجاز قرار داشته و خطری برای مصرف‌کنندگان ندارد.

کلیدواژه‌ها

عنوان مقاله [English]

Survey of Pollution With Heavy Metals in Various Tissues of Sheep in the Vicinity of Specialized Industrial Park of Zinc in Zanjan Province

نویسندگان [English]

  • Mohammad Hossein Nemati 1
  • Seyed Saeed Mosavi 2

1 1. Assistant Professor, Animal Science Research Department, Zanjan Agricultural and Natural Resources Research and Education Center, AREEO, Zanjan, Iran

2 Assistant Professor, Animal Science Research Department, Zanjan Agricultural and Natural Resources Research and Education Center

چکیده [English]

Abstract
Background and Aim: To maintain the health of consumers and achieve food safety, the control of maximum allowed heavy metals in food should be considered. This study aimed to investigate the concentration of heavy metals of copper (Cu), zinc (Zn), lead (Pb), and cadmium (Cd) in livestock tissues in the vicinity of Zinc Specialized Industrial Park.
Material and Methods: Ten samples were collected from each sheep tissue (including meat, liver, kidney, and bone) in each of the four geographical directions. To compare the current situation, samples from a control area (Qarah Poshtlu area of Zanjan) were also considered. A dry ash method was used to digest organic matter.
Results:Based on the results, the concentration of Cu was significantly high in the muscle and liver of the control group (P <0.05). The concentration of Zn was not affected by the study areas. The accumulation of Pb in the liver and bone and Cd in the muscle and liver of animals was significantly high in the western part of the study area (P <0.05). The levels of Cu in the kidney and bone tissues, Pb in the muscle and kidney tissues, and Cd in the kidney and bone tissues were not affected. The accumulation of Cu was inversely related to Pb and Cd.
Conclusion:In general, the results showed that despite heavy metal accumulation in the west of the study area, the concentrations of these metals in the tissues of sheep around it were within the allowable range and they were not dangerous to consumers.

کلیدواژه‌ها [English]

  • Animal tissue
  • heavy metal
  • monitoring
  • sheep
  • zinc
  1. Milam C, Dimas BJ, Jang AL, Eneche JE. Determination of Some Heavy Metals in Vital Organs of Cows and Bulls at Jametta Abattoir, Yola, Adamawa State, Nigeria. 2015; 8(4): 1–7.
  2. Reis PA, Almeida CMR. Matrix importance in animal material pre-treatment for metal determination. Food Chemistry 2008; 107(3): 1294–9.
  3. Underwood EJ, Suttle NF. The Mineral Nutrition of Livestock, 3rd edn. CAB International, Wallingford, UK. 1999.
  4. Hill GM, Shannon MC. Copper and Zinc Nutritional Issues for Agricultural Animal Production. Biological Trace Element Research 2019; 188: 148–159
  5. Salem AZM, Ammar H, Lopez S, Gohar YM, González JS. Sensitivity of ruminal bacteria isolates of sheep, cattle and buffalo to some heavy metals. Animal Feed Science and Technology 2011; 163(2–4): 143–9.
  6. Canli M, Atli G. The relationships between heavy metal (Cd, Cr, Cu, Fe, Pb, Zn) levels and the size of six Mediterranean fish species. Environmental Pollution 2003; 121(1): 129–36.
  7. National Research Council (NRC). Nutrient Requirements of Small Ruminant. National Academic Press, Washington DC, USA. 2007.
  8. Okoye PA, Babayemi J. Heavy metal levels in animal muscle tissue: a case study of nigerian raised cattle.  Research Journal of Applied Sciences· 2010; 5(2): 146-150.
  9. WHO. In "Trace Elements in Human Nutrition and Health." World Health Organization, Geneva 1996.
  10. National Research Council (NRC). Mineral Tolerances of Animals, Second Edition. National Academic Press, Washington DC, USA. 2005.
  11. Rahimi E, Rokni N. Measurement of cadmium residues in muscle, liver and kidney of cattle slaughtered in Isfahan abattoir using grafite furnace atomic absorption spectrometry (GFAAS): a preliminary study. Iranian Journal of Veterinary Research, Shiraz University 2008; 9(2): 174-177.
  12. Lopez Alonso M, Benedito JL, Mirada M, Castillo C, Herandez J, Shore RF. Cotribution of cattle products to dietary intake and toxic elements in Galicia, Spain. Food Additives & Contaminants 2002; 19(6): 533-541.
  13. Sadeghi A and Shorang P. Guide Biochemical Tests, Especially the Fields of Animal Science, Veterinary Medicine, Food Industry and Biology. Sphere Press. 2005, pp: 248.
  14. Momeni M. New Topics Operations Research. Moalef press. 2013; pp: 338.(Persian)
  15. Esmailpor EU, Pashmi, Kh, Pourkhabbaz AR.. Determination of trace elements levels in different tissues of goat and sheep slaughtered in Birjand city. Veterinary Journal (Pajouhesh& Sazandegi) 2014; 105: 2-9. (Persian)
  16. Niedzioika R, Lendzion-Pieniak. k, Horoszewicz EA. Study on bioaccumulation of selected metals in meat and intrenal organs of intensively fed kid goats. Journal Elementol 2009; 14(3): 501-507.
  17. Rajaganapathy V, Xavier F, Sreekumar D Mandal PK. Heavy Metal Contamination in Soil, Water and Fodder and their Presence in Livestock and Products: A Review. Journal of Environmental Science and Technology 2011; 4: 234-249.
  18. Oymak T, Ulusoy H, Hastaoğlu E, Yılmaz V, Yıldırım Ş. Some Heavy Metal Contents of Various Slaughtered Cattle Tissues in Sivas-Turkey. JOTCSA 2017; 4(3): 737–46.
  19. WHO. (1996). In "Trace Elements in Human Nutrition and Health." World Health Organization, Geneva. Pp: 361
  20. European Commission Regulation. No 1881/2006, Setting maximum levels for certain contaminants in foodstuff. Official Journal of the European Union, L 2006; 364: 524.
  21. Coppock RW, Wagner WC, Reynolds RD. Migration of lead in a glass-lined bottom-unloading silo. Veterinary and human toxicology 1998; 30(5): 458-9.
  22. Sharma JC, Shupe JL, Bourcier DR. Accumulation and Depletion of Cadmium and Lead in Tissues and Milk of Lactating Cows Fed Small Amounts of These Metals. Journal of Dairy Science, 1981; 65: 972-979.
  23. Shen X, Chi Y, Xiong K. The effect of heavy metal contamination on humans and animals in the vicinity of a zinc smelting facility. PLoS ONE, 2019; 14(10): 1-15.
  24. Van der Fels-Klerx I, Romkens P, Franz E, Van Raamsdonk, L. Modeling cadmium in the feed chain and cattle organs. Biotechnology, Agronomy, Society and Environment 2011; 15 (S1): 53-59.
  25. Yeganeh Shali S, Rahimi GH, Jahanban L, Moradi S, Ebrahimi E. Investigation of Heavy Metals Accumulation in Different Tissues of Laboratory Rat. Iranian Journal of Research in Environmental Health. Summer 2018; 4(2): 94-103. (Persian).
  26. Ismaili Sari A. Polluter health and environmental standards. Naser Mehr Publications 2002, First Edition. (Persian).
  27. Iwegbue, CMA. Heavy Metal composition of Livers and Kidneys of cattle from southern Nigeria. Veterinarski Archiv 2008; 78: 401-410.
  28. Miranda M, Lopez-Alonso M, Castillo C, Hernandez J, Benedito JL. Effects of moderate pollution on toxic and trace metal levels in calves from a polluted area of Northern Spain. Environment International 2005; 31: 543-548.