1- Adebayo, G.B., Otunola, G.A., and Oladipo, F.O. (2009). Determination of trace elements in selected organs of cow for safety consumption among rural dwellers in Kwara state, Nigeria. Pakistan Journal of Nutrition. 8(12): 1855-1857.
2- Akan, J.C., Abdulrahman, F.I., Sodipo, O.A., and Chiroma, Y.A. (2010). Distribution of heavy metals in the liver, kidney and meat of beef, mutton, caprine and chicken from Kasuwan Shanu Market in Maiduguri Metropolis, Borno State, Nigeria. Research Journalof Applied Sciences, Engineering and Technology. 2(8):743-748.
3- ANZFA (Australia New Zealand Food Authority), (2001). WellingtonNZ 6036 May, 2001. Retrieved from: URL:http://www.anzfa.gov.au.
4- Badiei, K., Mostaghni, K., Pourjafar, M., and Parchami, A. (2006). Serum and tissue trace elemets in Iranian camels. Comparative Clinical Pathology. 15:103-106.
5- Bakhiet, A.O., Mohammed, A.A., Siham, E.S.M., Samia El Badwi, M.A.(2007). Some trace-elements profile in the liver of camels, cattle, sheep and goats. International Journal of Tropical Medicine. 2(1):1-2.
6- Ballatori, N. (1991) Mechanisms of metal transport across liver cell plasma membranes. Drug Metabolism Reviews. 23, 83–132.
7- Ceylan, A., Serin, I., Aksit, H., and Seyrek, K. (2008). Concentrations of some elements in dairy cows with reproductive disorders. Bull Vet Inst Pulawy. 52:109-112.
8- Howell, J.M.C. (1996). Toxicities and excessive intakes of minerals.Detection and treatment of mineral nutrition problems in grazing sheep. 96-117.
9- Iwegbue, C.M.A. (2008). Heavy metal composition of livers and kidneys of cattle from southern Nigeria. Veterinarski Arhiv. 78(5):401-410.
10- Kincaid, R. L. (1999). Assessment of trace mineral status of ruminants: A review. Proceedings of the American Society of Animal Science.
11- Korenekova, B., Skalicka, M., and Nad, P. (2002). Concentration of some heavy metals in cattle reared in the vicinity of a metallurgicindustry. Veterinarski Arhiv. 72(5):259-267.
12- Korsrud, G.O., Meldrum, J.B., Salisbury, C.D., Houlahan, B.J., Saschenbrecker, P.W., and Tittiger, F. (1985). Trace element levels in liver and kidney from cattle, swine and poultry slaughtered in Canada. Canadian Journal Comparative Medicine. 49:159-163.
13- Mariam, I., Iqbal, S., and Nagra, S.A. (2004). Distribution of some trace and macrominerals in beef, mutton and poultry. International Journal of Agriculture and Biology. 6:816-820.
14- Massanyi, P., Trandzik, J., Lukac, N., Strapak, P., Kovacik, J., and Toman, R. (2000). The contamination of bovine semen with Cd, Pb, Cu and Zn and its relation to the quality of spermatozoa used for insemination. In: Folia Veterinarian. 44:150–153.
15- Navidshad, B., and jafari sayadi, A. (2000). Animal nutrition (Translation).
16- Niedzioika, R., Pieniak-Lendzion, K., and Horoszewicz, E. (2009). A study on bioaccumulation of selected metals in meat and internal organs of intensively fed kid goats. Journal Elementol. 14(3):501-507.
17- Pechova, A., and Pavlata, L. (2007). Chromium as an essential nutrient: a review. Veterinarian Medicine. 1: 1-18.
18- Shelle, R.O.D and Ayejuyoo, A. (2011). Determination of heavy metals in ready to eat entrails. Internet Journal of Food Safety. 13:16-19.
19- Shimi, A. (1987). Disesse caused by chemical agents, allergy, genetic effects and unknown etiology (Translation).
20- Skalicka, M., Korenekova, B., and Nad, P. (2005). Copper in livestock from polluted area. In: Bulletin Environmental Contamination Toxicology. 74: 740-744.
21- Skalicka, M., Korenekova, B., and Nad, P. (2008). Distribution of trace elements in liver and muscle of Japanese quails. Slovak Journal of Animal Science. 41, (4): 187 – 189.
22- Spivey Fox, M.R. (1987). Assessment of cadmium, lead and vanadium status of large animals as related to the human food chain. Journal of Animal Science. 65:1744-1752.
23- Swaileh, K.M., Abdulkhaliq, A., Hussein, R.M., and Matani, M. (2009). Distribution of toxic metals in organs of local cattle, sheep, goat and poultry from the West Bank, Palestinian Authority. Bulletin Environmental Contamination Toxicology. 83:265-268.
24- Zasadowski, A., Barski, D., Markiewicz, K., Zasadowski, Z., Spodniewska, A., and Terlecka, A. (1999). Levels of cadmium contamination of domestic animals (cattle) in the region of Warmia and Masuria. Polish Journal of Environmental Studies. 8:443-446.