Doyle J J, Pfander W H
J Nutr. 1975 May;105(5):599-606. doi: 10.1093/jn/105.5.599.
Diets containing 0, 5, 15, 30, and 60 ppm of cadmium were fed to male lambs for 191 days to ascertain what effect cadmium might have on the tissue concentrations of copper, zinc, iron, and manganese. The cadmium content of all tissues increased with an increase in dietary cadmium. The iron concentration of the ileum tissue was significantly depressed in the cadmium-treated groups compared with that of the controls. Liver copper, iron, and manganese were significantly depressed and liver zinc significantly increased by varying levels of dietary cadmium. The copper concentrations of the spleen and testicles were significantly decreased by all levels of cadmium while the copper and zinc concentrations of the kidneys were significantly increased in the 30 and 60 mug Cd/g and 15, 30, and 60 mug Cd/g groups, respectively. In general, cadmium had no significant effect on the rumen, abomasal, heart, or lung concentrations of copper, zinc, iron, or manganese.
将含0、5、15、30和60 ppm镉的日粮喂给雄性羔羊191天，以确定镉对铜、锌、铁和锰的组织浓度可能产生何种影响。所有组织中的镉含量均随着日粮镉含量的增加而增加。与对照组相比，镉处理组回肠组织中的铁浓度显著降低。不同水平的日粮镉使肝脏中的铜、铁和锰显著降低，而肝脏中的锌显著增加。所有水平的镉均使脾脏和睾丸中的铜浓度显著降低，而在30和60微克镉/克组以及15、30和60微克镉/克组中，肾脏中的铜和锌浓度分别显著增加。总体而言，镉对瘤胃、皱胃、心脏或肺中铜、锌、铁或锰的浓度没有显著影响。
