Related Experiment Video
Updated: Aug 15, 2026

Milk Collection in the Rat Using Capillary Tubes and Estimation of Milk Fat Content by Creamatocrit
Published on: December 16, 2015
Copper and zinc content in human milk in Croatia
Z Mandić1, M L Mandić, J Grgić
1Clinical Hospital Osijek, Pediatric Department, Croatia.
Abstract:
The aim of this paper was to research whether there had been any statistically significant difference in the content of Cu and Zn in human milk depending on the social status of women (refugee and non-refugee), age, number of deliveries, days after delivery, weight gained by nursing women and smoking habits, as well as whether the infants had received sufficient quantities of these elements. The elements were determined by flame atomic absorption spectrometry. The samples were collected in the Clinical Hospital Osijek and Refugee Centre Nabrde, near Osijek, Eastern Croatia. The Cu in human milk ranged from 0.27 mg/l to 1.35 mg/l, and Zn from 0.62 mg/l to 15.0 mg/l. The mean levels of Cu and Zn for each group, formed according to the results of the questionnaire are presented too. Calculated daily dietary intake of these elements accords with the RDA.
Related Concept Videos
Standard Electrode Potentials
Transcytosis of IgG
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
Essential Minerals for Bone Health
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Gonadal and Placental Hormones
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair growth — and...
Development of Human Microbiota
Development of the Oral Microbiota

