Replacing hens in cages: effect on subsequent egg production.
Comparisons were made to determine whether replacing hens that died in multiple-hen cages would alter the subsequent well-being of such groups, as indicated by rate of egg production. In only one of four comparisons was a significantly lower rate of lay obtained from hens in cages that received replacements in the 1st 5-wk period following replacements. Differences were not detected during the 2nd 5-wk period in any of the four comparisons. Consequences of replacing vs. not replacing hens are discussed briefly.
Craig
J V
JV
Department of Animal Sciences and Industry, Kansas State University, Manhattan 66506.
Okpokho
N A
NA
D000818:Animals; D002645:Chickens / Q000502:physiology*; D003441:Crowding / Q000502:physiology*; D005260:Female; D006799:Housing, Animal; D010058:Oviposition