Kirchgessner M, Roth-Maier D A, Grassmann E, Mader H
Arch Tierernahr. 1982 Dec;32(12):853-8. doi: 10.1080/17450398209421034.
In a trial with 18 sows of the German landrace in three groups the dietary copper supply was varied in gravidity and lactation. Iron, copper, zinc, nickel and manganese concentration of milk was measured on 11 different days during the five weeks' lactation period in response to alimentary copper supply. Copper supply did not influence iron, zinc, and manganese concentration even if it was deficient during gravidity and lactation. Mature sow's milk contained 1.2 micrograms Fe, 1.5 micrograms Cu, 6-8 micrograms Zn, 0.16-0.23 microgram Ni and 0.07-0.13 microgram Mn per g fresh milk. First colostrum contained higher copper and zinc concentrations and lower concentrations of nickel and manganese compared to mature milk. Fe concentration remained constant. This investigation reproduced and completed thereby previous results. It was concluded that in copper deficiency status the interactions of copper with iron, zinc, nickel and manganese may not be effective for the excretion pathway milk.
在一项对18头德国长白母猪进行分组的试验中，在妊娠期和哺乳期改变日粮中的铜供应量。在为期五周的哺乳期内的11个不同日子，测定了母乳中铁、铜、锌、镍和锰的含量，以研究日粮铜供应的影响。即使在妊娠期和哺乳期铜供应不足，也不会影响铁、锌和锰的含量。每克新鲜母乳中，经产母猪的乳汁含有1.2微克铁、1.5微克铜、6 - 8微克锌、0.16 - 0.23微克镍和0.07 - 0.13微克锰。与成熟乳汁相比，初乳中铜和锌的含量较高，而镍和锰的含量较低。铁含量保持恒定。这项研究再现并完善了之前的结果。得出的结论是，在铜缺乏状态下，铜与铁、锌、镍和锰之间的相互作用可能对乳汁排泄途径没有影响。
