![Oxygen isotope fractionation between bone .](/y16bkdi/494.jpg)
Oxygen isotope fractionation between bone .
Oxygen isotope compositions of bone phosphate (δ18Op) were measured in broiler chickens reared in 21 farms worldwide characterized by contrasted latitudes and local climates. These sedentary birds were raised during an approximately 3 to 4month period, and local precipitation was the ultimate source of their drinking water. This sampling strategy allowed the relationship to be determined ...