Effects of nano mineral-supplemented diet on pig growth
Keywords:Feed conversion ratio, nano minerals, residual metals, weight gain.
This paper examined the effects of nano mineral supplementation of diets on the growth of pigs. The total of 180 pigs used for this study were classified into 4 experimental groups and one control group. The results showed that the weight of pigs at the beginning and the end of the experiment was insignificantly different between experimantal and control groups. The same daily gain weight was observed between experimental and control groups. However, the feed conversion ratio (FCR) of four experimental groups I, II, III and IV is 3.00 ± 0.28, 2.95 ± 0.11, 2.85 ± 0.19 and 2.90 ± 0.24, respectively, that were lower than of the control groups, i.e. 3.17 ± 0.42. The mineral content of Fe, Cu, Zn and Mn in liver of pigs in all the experimental groups is lower than that in liver of pigs in the control group. In addition, the amount of Fe and Zn metal in urine and feces of the experimental groups is also lower than in the control group. The results of our study showed that the addition of nano minerals in diets for pigs not only reduced the feed conversion ratio in pigs, also decreased the amount of minerals releasing into the environment.
Anderson B. K., Easter R. A., 1999. A review of iron nutrition in pigs. Illinois Livestock Trail, University of Illinois Extension.
Burton C. H., 2007. The potential contribution of separation technology to the management of livestock manure. Livestock Science, 112: 208–216.
Chibuike G. U., Obiora S. C., 2014. Heavy metal polluted soils: Effect on plants and bioremediation methods. Appl Environ Soil Sci. Article ID 752708: 1−12.
Conrad H. R., Zimmerman D. R., Combs G. F. J., 1980. NFIA, Literature review on Iron in animal and poultry nutrition. National Iron Ingredients Association, West Des Moines, IA.
Djingova R., Kuleff I., 2000. Instrumental techniques for trace analysis. In: Trace Element: Their distribution and effects in the environment, Vernet JP (ed.), Elsevier, London, UK.
Dréau D., Lallés J. P., 1999. Contribution to the study of gut hypersensitivity reaction from livestock slurry applied to grassland. Grass Fora Sci., 53: 31‒40.
Hays V. W., 2013. Effectiveness of feed additive usage of antibacterial agents in swine and poultry production. Prim Source Edn Nabu Press, 108.
Hill G. M., Spears J. W., 2001. Trace and ultra-trace elements in swine nutrition. In: Swine Nutrition, Lewis AJ, Southern LL (edtrs), CRC Press. Boca Raton, Florida: 229‒261.
Jacela J. Y., DeRouchey J. M., Tokach M. D., Goodband R. D., 2010. Feed additives for swine: Fact sheets-high dietary levels of copper and zinc for young pigs and phytase. J. Swine Health Prod., 18: 87‒91.
Morris E. R. 1987. Trace elements in human and animal nutrition. Mertz W ed. Academic Press, New York.
Raskin I., Nanda-Kumar P. B. A., Dushenkov S., Salt D. E., 1994. Bioconcentration of heavy metals by plants. Curr Opin Biotechnol., 5: 285‒290.
Wei B., Yang L., 2010. A review of heavy metal contamination in urban soils, urban road dust and agricultural soils from China. Microchem. J., 94: 99‒107.