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has been cited by the following article:

• TITLE: Effect of Feeding a Combination of Zinc, Manganese and Copper Methionine Chelates of Early Lactation High Producing Dairy Cow

  AUTHORS: Ghada Mostafa El Ashry, Ayman Abdel Mohsen Hassan, Soliman Mohamed Soliman

  KEYWORDS: Milk Yield; Chelated Minerals; Dairy Cows; Milk Production

  JOURNAL NAME: Food and Nutrition Sciences, Vol.3 No.8, August 8, 2012

  ABSTRACT: The objective of the study was to compare the effect of feeding mixed chelated minerals (Mn, Cu and Zn) methionine on dairy cow productive performance and milk yield and its components. The trial was conducted with dairy cows across various stage of lactation. The experimental treatments include chelated minerals (15 mg Zn as Zn Met, 20 mg Mn as Mn Met, 10 mg Cu as Cu Met). Inorganic mixture contains (15 mg Zn as ZnSO4, 20 mg Mn as MnSO4, 10 mg Cu as CuSO4) in sulphate forms. The experiment was commenced in the dry period of cows, 6 weeks before calving, and after calving the first three months of lactation was taken into consideration. Milk samples were collected from each cow evening and morning for estimation of milk yield production. The inorganic metals caused a significant decline (P