Complex study of the physiological role of cadmium. IV. Effects of prolonged dietary exposure of broiler chickens to cadmium.

A 274-day long cadmium (Cd) feeding trial was carried out with broiler cockerel chickens. The diet of the control group (Cd-0, n = 6) contained no added Cd, whereas to the diet of group Cd-25 and group Cd-75 (n = 10 each) 25 ppm and 75 ppm Cd was added, respectively, in the form of CdSO4. The chickens were subjected to examinations described in detail earlier (Bokori et al.

Complex study of the physiological role of cadmium. II. Effect of cadmium load on the cadmium content of eggs.

The possibility of "cadmium (Cd) contamination" of eggs and the dynamics of Cd accumulation were studied. A total of 40 (4 x 10) Japanese quails weighing 155-200 g, being at the middle phase of egg production and kept on batteries in a climatized animal house were used. The birds were fed a standard quail layer diet and drank tap-water ad libitum.

Complex study of the physiological role of cadmium. III. Cadmium loading trials on broiler chickens.

Cadmium (Cd) loading trials were conducted on a total of 110 (3 x 10 and 4 x 20) broiler chickens prereared for 21 days. The control chickens received no cadmium, while chickens in the six treatment groups were given different doses of Cd as an aqueous solution of CdSO4 administered either into the crop or mixed in the feed. The chickens were kept in a climatized animal house and treated usually for 3-5 weeks (maximum 68 days), with the exception of group Cd-75 chickens which were treated up to 239 days of age.

Effects of long-term aluminum exposure on certain serum constituents in broiler chickens.

The aim of this work was to study the effects of 35 days exposure to aluminium on certain serum biochemical quantities in chickens. Broiler chicks (TETRA-726 hybrid, male) were kept in a climate-controlled stall with feed and water ad libitum, from day 1 of age, for 7 weeks. From the beginning of the third week aluminium was added to the diet as aluminium chloride.