Abstract
Eighteen lactating dairy cows were used to compare the effects of organic and inorganic Zn supplements on milk production and chemical composition of milk. Animals received three diets in a randomized block design: basal diet with no supplemental Zn (control, 42 mg Zn/kg), basal diet plus 500 mg Zn/kg of dry matter (DM) as zinc sulfate monohydrate (ZnS) and basal diet plus 500 mg Zn/kg of DM as zinc methionine (ZnM). Results showed that milk and fat-corrected milk yield in dairy cows were not significantly affected by Zn source although a numerical increase was observed. The percentages of protein, lactose, fat, solid nonfat, total solid, and density of milk were not significantly different between treatments. However, dairy cows that received ZnM tended to produce more milk and fat-corrected milk with a lower somatic cell count as compared to controls. The zinc concentration in milk in the ZnM and ZnS groups was higher (P < 0.05) than in milk from the control group, but there were no significant differences between ZnS and ZnM groups.
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References
Malakuti MJ (1997) Persistant agriculture and Increased function with the best fertilizer usage in Iran, Karaj, Agric. pub. 300–304
Prasad AS (1995) Zinc: an overview. Nutrition 11:93–99
Rink L, Kirchner H (2000) Zinc-altered immune function and cytokine production. J Nutr 30:1407s–1411s
Cook-Mills J, Fraker PJ (1993) Functional capacity of residual lymphocytes from zinc deficient adult mice. Br J Nutr 69:835–848
Miller JK, Madsen FC (1992) Trace minerals. In: Van Horn HH, Wilcox CJ (eds) Large dairy herd management. American Dairy Science Association, Champaign, p 297
Kellogg DW (1990) Zinc methionine affects performance of lactating cows. Feedstuffs 62:15–16
Spears JW (1996) Organic trace minerals in ruminant nutrition. Anim Feed Sci Tech 58:151–163
Wedekind KJ, Hortin AE, Baker DH (1992) Methodology for assessing zinc bioavailability: efficacy estimates for zinc-methionine, zinc sulfate, and zinc oxide. J Anim Sci 70:178–187
NRC (National Research Council) (2001) Nutrient requirements of dairy cattle, 7th revised edition. National Academy, Washington, DC
AOAC (2005) Official methods of analysis, 18th ed. Association of Official Analytical Chemists, Washington, DC
Goering HK, Van Soest PJ (1970) Forage fiber analyses (apparatus, reagents, procedures, and some applications). Agric. handbook no. 379. ARS-USDA, Washington, DC
Heckman M (1968) Collaborative study of minerals in feeds by atomic absorption spectrophotometry. J AOAC 51:776
Hankinson DJ (1975) Potential sources of copper contamination of farm milk supplies measured by atomic absorption spectrophotometry. J Dairy Sci 58:326–336
Kellogg DJ, Socha MT, Johnson AB (2004) Review: effects of zinc methionine complex on milk production and somatic cell count of dairy cows: twelve-trial summary. Pro Anim Sci 4:295–299
Boland MP, O'Donnell G, O'Callaghan D (1996) The contribution of mineral proteinates to production and reproduction in dairy cattle. In: Lyons TP, Jaques K (eds) Biotechnology in the feed industry. Proceedings of Alltech's twelfth annual symposium. Nottigham University Press, Loughborough, pp 95–103
Dibley MJ (2001) Zinc. In: Bowman BA, Russell RM (eds) Present knowledge in nutrition, 8th edn. International Life Sciences Institute, Washington, DC, p 329
Wirth JJ, Fraker PJ, Kierszenbaum F (1984) Changes in the levels of marker expression by mononuclear phagocytes in zinc deficient mice. J Nutr 114:1826–1833
Craven N, Williams MR (1985) Defenses of the bovine mammary gland against infection and prospects for their enhancement. Vet Immunol Immunopathy 10:71
Nickerson SC (1990) Defense mechanisms of the cow. In Proc. 29th Annu. Mtg., Louisville, KY. p 157. Natl. Mastitis Council, Arlington, VA
Rodriguez EMR, Alaejos MS, Romero CD (2001) Mineral concentrations in cow’s milk from the Canary Island. J Food Comp Anal 14:419–430
Miller WJ, Amos HE, Gentry RP, Blackmon DM, Durrence RM, Fielding AS, Neathery MW (1989) Long term feeding of high zinc sulfate diets to lactating and gestating dairy cows. J Dairy Sci 72:1499
Strusinska D, Mierejewska J, Skok A (2004) Concentration of mineral components, beta-carotene, vitamins A and E in cow colostrum and milk when using mineral–vitamin supplements. Medycyna Weterynaryjna 60:202–206
Kirhgessner M, Paulicks BR, Hagemeister H (1994) Zinc concentration in the milk of dairy cows supplemented with high-levels of zinc methionine. J Anim Physiol Anim Nutr 72:165–167
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The authors would like to express their appreciation to Dr. Jakob Sehested for editing the text in English.
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Sobhanirad, S., Carlson, D. & Bahari Kashani, R. Effect of Zinc Methionine or Zinc Sulfate Supplementation on Milk Production and Composition of Milk in Lactating Dairy Cows. Biol Trace Elem Res 136, 48–54 (2010). https://doi.org/10.1007/s12011-009-8526-3
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DOI: https://doi.org/10.1007/s12011-009-8526-3