Effect of the application of bioplexes of zinc, copper and manganese on milk quality and composition of milk and colostrum and some indices of the blood metabolic profile of cows

Abstract

AbstrACt:The object of an experiment was inorganic and organic forms of zinc, copper and manganese applied in mineral mixtures to dairy cows. The experiment was carried out on 90 cows with average milk yield for previous lactation of about 9 500 kg milk. The cows received mineral mixtures containing inorganic or organic forms of zinc, copper and manganese for 6 weeks before calving and during the first three months of lactation. The application of microelements as bioplexes in amounts covering 30% of daily requirements of cows had a positive effect on an increase in colostrum dry matter content from 20.9 to 23.35% as well as on the concentration of protein and fat, and the level of minerals -calcium, phosphorus, magnesium, zinc and copper. In cows' milk in the 2 nd and 3 rd month of lactation there were no differences in contents of minerals. However in the blood serum of cows in the 1 st and 2 nd month of lactation an increase in calcium concentration from 1.96 to 2.14 g/kg was observed while the content of phosphorus also increased average from 1.76 to 2.22 g/kg in the first trimester of lactation.

Organic and inorganic sources of zinc, copper and selenium in diets for dairy cows: intake, blood metabolic profile, milk yield and composition

“…There were no effects of treatment on plasma concentrations of GL, NEFA, β-hydroxybutyrate, TC, CHDL, TP, albumin, urea, BUN, β-hydroxybutyrate, alkaline phosphatase or β-hydroxybutyrate, either pre-partum or during lactation (Table 2). Similarly, Kinal et al (2007a) did not observe effect of supplementation of organic Zn, Cu or Mn from six weeks pre partum to three months of lactation on concentrations of urea and GL. However, a time effect was observed in this study for all variables during both periods, except for β-hydroxybutyrate pre-partum and concentrations of β-hydroxybutyrate and β-hydroxybutyrate during the first 80 d of lactation.…”

“…Other authors (Spears et al, 2004;Kinal et al, 2007b) also reported an increase in Zn in plasma in cattle fed organic or inorganic Zn. Similarly, Kinal et al (2007a) reported an increase in plasma Cu concentration of dairy cows fed organic sources of Zn, Cu and Mn compared with cows fed these minerals as sulphate.…”

“…Average Se for animals fed organic and inorganic sources during pre-partum and lactation (4.7 and 6.6 mg/day, respectively) was slightly higher than the recommendations of the NRC (2001) (4.3 and 5.7 mg/day, respectively). Studies on the supply of different sources of micro minerals (Griffiths et al, 2007;Kinal et al, 2007a;Siciliano-Jones et al, 2008) did not estimate total nutrient intake.…”

Scientific Opinion on the safety and efficacy of copper compounds (E4) as feed additives for all species: cupric chelate of amino acids hydrate, based on a dossier submitted by Zinpro Animal Nutrition Inc.

“…Regarding animal products, no difference in copper levels in eggs were observed between hens fed diets supplemented with copper sulphate or chelated amino acid hydrate at levels that did not exceed the maximum authorised total element level (Mabe et al, 2003) or with levels highly exceeding it (Idowu et al, 2006). Data from one study carried out with dairy cows (total dietary copper 13.8 mg/kg) did not show any difference in milk copper levels depending on copper source (Kinal et al, 2007).…”

Effect of Supplementation of Chelated Minerals on Growth Performance of Buffalo Calves

“…Ashmead et al (2004) recorded that amino acid chelates (AACs) were more bioavailable than inorganic minerals (IOMs). Kinal et al (2007) Mallaki et al (2015) reported that dry matter intake were higher for the lambs fed the diet supplemented with ZnP. Feed conversion ratio was significantly (P < 0.05) higher in the ZnP group compared to the control and ZnS groups.…”