Initial and Resultant Population Densities in Chickens between Brooding and Sexual Maturity

Science  23 Dec 1966:
Vol. 154, Issue 3756, pp. 1568-1569
DOI: 10.1126/science.154.3756.1568


Seven flocks of chickens were raised in groups from weeks 5 to 9 after hatching. Initially the groups had the same number of chickens but they di0ered in population density. The number of birds that survived to week 9 was strongly related to the initial population density.