References
- 1. Bao, Y. M., Choct, M., Iji, P. A., Bruerton, K., 2010: The digestibility of organic trace minerals along the small intestine in broiler chickens. Asian-Australasian J. Anim. Sci., 23, 90—97.
- 2. Beyersmann, D., Haase, H., 2001: Functions of zinc in signalling, proliferation and differentiation of mammalian cells. BioMetals, 14, 331—341.10.1023/A:1012905406548
- 3. Bobíková, K., Levkut, M., Jr., Husáková, E., Levkutová, M., Kissová, V., Ivanišinová, O., et al., 2016: Effect of glycin-zinc complex on mucin and IgA expression, secretory IgA concentration and lengths of intestinal villi in chickens. J. Comp. Pathol., 154, 81.
- 4. Burrell, A. L., Dozier, W. A., Davis, A. J., Compton, M. M., Feeman, M. E., et al., 2004: Responses of broilers to dietary zinc concentrations and sources in relation to environmental implications. British Poult. Sci., 45, 225—263.
- 5. Feng, J., Ma, W. Q., Niu, H. H., Wu, X. M., Wang, Y., Feng, J., 2010: Effects of zinc glycine chelate on growth, haematological, and immunological characteristics in broilers. Biol. Trace Elem. Res., 133, 2003—2011.
- 6. Katouli, M., Melin, L., Jensen-Waern, M., Wallgren, P., Möllby, R., 1999: The effect of zinc oxide supplementation on the stability of the intestinal flora with special reference to composition of coliforms in weaned pigs. J. Appl. Microbiol., 87, 564—573.
- 7. Levkut, M., Jr., Husáková, E., Bobíková, K., Karaffová, V., Levkutová, M., Ivanišinová, O., et al., 2017: Inorganic or organic zinc and MUC-2, IgA, IL-17, TGF-β4 gene expression and sIgA secretion in broiler chickens. Food Agricult. Immunol., 28, 801—811.
- 8. Lönnerdal, B., 2000: Dietary factors influencing zinc absorption. J. Nutr., 130, 1378S–1383S.
- 9. National Research Council, 1994:Nutrient Requirements of Poultry. 9th edn., Washington, DC, National Academic Press, 157 pp.
- 10. Payne, R. L., Bidner, T. D., Fakler, T. M., Southern, L. L., 2006: Growth and intestinal morphology of pigs from sows fed two zinc sources during gestation and lactation. J. Anim. Sci., 84, 2141—2149.
- 11. Southon, S., Gee, J. M., Bayliss, C. E., Wyatt. G. M., Horn, N., Johnson, I. T., 1986: Intestinal microflora, morphology and enzyme activity in zinc-deficient and Zn-supplemented rats. Br. J. Nutr., 55, 603—611.10.1079/BJN19860065
- 12. Sunder, G. S., Panda, A. K., Gopinath, N. C. S., Rama Rao, S. V., Raju, M. V. L. N., Reddy, M. R., et al., 2008: Effects of higher levels of zinc supplementation on performance, mineral availability, and immune competence in broiler chickens. J. Appl. Poult. Res., 17, 79—86.
- 13. Tang, Z., Wen, C., Li, P., Wang, T., Zhou, Y, 2014: Effect of zinc-bearing zeolite clinoptololite on growth performance, nutrient retention, digestive enzyme activities, and intestinal function of broiler chickens. Biol. Trace Elem. Res., 158, 51—57.
- 14. Wenqiang, M. A., Niu, H., Feng, J., Wang, Y., Feng, J., 2011: Effect of zinc glycine chelate on oxidative stress, contents of trace elements, and intestinal morphology in broilers. Biol. Trace Elem. Res., 142, 546—556.
- 15. Yu, Y., Lu, L., Wang, R. L., Xi, L., Luo, X. G., Liu, B., 2010: Effects of source and phytate on zinc absorption by in situ ligated intestinal loops of broilers. Poult. Sci., 89, 1146—1155.