Effects of induced molting on the well-being of egg-laying hens

Journal of Applied Animal Welfare Science : JAAWS
Brenda McCowanDonald Klingborg

Abstract

Induced molting in egg-laying hens is an important method for maximizing hen egg production and quality as well as hen health in commercial settings; however, there is growing societal concern over its effects on hen well-being. Using individual hens as their own controls, this research examined the behavior of hens subjected to different treatments of induced molting under premolt, molt, and postmolt conditions. Cage pecking increased in fast-induced subjects and aggression increased in fast-induced and nonfast-induced subjects during the molt. Gakel calling and several aspects of its acoustic structure were much higher during the molt condition in fast-induced subjects only. These data suggest that nonfast-induced molting treatments provide an effective method for inducing molting in hens and improving their well-being by minimizing discomfort due to food deprivation. In addition, these data further support that gakel vocalizations in hens may serve as an effective indicator for assessing well-being in a species otherwise behaviorally stoic in expressing stress or discomfort.

References

Aug 1, 1978·The Journal of Endocrinology·P J Sharp, G Beuving
Sep 1, 1977·Journal of Reproduction and Fertility·G Beuving, G M Vonder
Jan 1, 1992·Poultry Science·S W BreedingA L Johnson
Nov 1, 1986·Poultry Science·B L GoodmanO H Diambra
Jan 1, 1974·Behaviour·J Altmann
Mar 29, 2000·Poultry Science·A B Webster
Aug 1, 2000·Applied Animal Behaviour Science·P H Zimmerman van Hooff JA
Apr 25, 2003·Poultry Science·A BarE Vax
Jun 24, 2003·Poultry Science·A B Webster
May 15, 2004·Poultry Science·P E BiggsC M Parsons

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Citations

Jan 11, 2007·Journal of Applied Animal Welfare Science : JAAWS·Brenda McCowan, Ina Rommeck
Jun 5, 2018·Anatomia, histologia, embryologia·Mary-Cathrine Nyasha Madekurozwa, Mike M Mpango
Apr 19, 2008·Poultry Science·C S DunkleyS C Ricke

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