Diseases in chicks and laying hens during the first 12 years after battery cages were banned in Switzerland

2009 ◽  
Vol 164 (7) ◽  
pp. 203-207 ◽  
Author(s):  
M. Kaufmann-Bart ◽  
R. K. Hoop
Keyword(s):  
Laying Hens ◽  
Battery Cages

scholarly journals A COMPARISON OF THE PERFORMANCE AND SOME PHYSIOLOGICAL STRESS OF LAYING HENS KEPT IN BATTERY CAGES AND ON FLOOR PENS SYSTEM

2016 ◽  
Vol 94 (3) ◽  
pp. 769-782
Author(s):  
ALAA K. ALM EL DEIN ◽  
ABDEL RAFEE A. EL-SHAFEI ◽  
YASER A. ABD EL AZIZ ◽  
MOHAMED A. AL-GAMAL
Keyword(s):  
Laying Hens ◽  
Physiological Stress ◽  
Battery Cages

scholarly journals The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cages

2008 ◽  
Vol 53 (No. 8) ◽  
pp. 345-353 ◽  
Author(s):  
M. Sarica ◽  
S. Boga ◽  
U.S. Yamak
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Stocking Density ◽  
Experimental Period ◽  
Egg Mass ◽  
Quality Traits ◽  
Body Parts ◽  
Battery Cages ◽  
And Performance

This study was conducted to investigate the effects of cage stocking density on egg yield, some egg quality traits and plumage condition in laying hens. Eighteen weeks-old 264 ISA-Brown pullets were divided into four cage density groups. The densities were 2 000, 1 000, 667 and 500 cm<sup>2</sup> per hen (by allocating 1, 2, 3 and 4 hens per cage; floor area 40 × 50 cm) with 48, 30, 24 and 21 replicate cages, totally 123 three-tier battery cages. During the experimental period from 18 to 53 weeks of age, all birds were provided illumination for 16 hours a day. The hens were fed a diet containing 11.7 MJ ME/kg and 180 g CP during the period of 18 to 40 weeks of age and 11.3 MJ ME/kg and 170 g CP during the period of 41 to 54 weeks of age. Feed and water were available for <I>ad libitum</I>. Egg yield, mortality, live weights at 50% egg production age and at the end of experiment, pecking related mortalities, some egg quality traits and plumage condition were recorded weekly. Hen-housed egg production, egg mass, viability, and live weights were significantly decreased by higher densities. Most of the egg quality traits were not affected by cage densities. Pecking related mortalities increased in cage densities of 667 cm<sup>2</sup> and 500 cm<sup>2</sup> per hen compared to the other densities (<I>P</I> < 0.05) while plumage scores were higher in all body parts of hens kept in cages of 2 000 cm<sup>2</sup> and 1 000 cm<sup>2</sup> densities compared to the higher densities. The results showed that brown laying hens should be kept in cages having 1 000–2 000 cm<sup>2</sup> densities in order to improve their welfare and performance.

Welfare aspects of the perchery systea of housing for laying hens

1993 ◽  
Vol 1993 ◽  
pp. 68-68
Author(s):  
D M Alvey ◽  
S A Tucker
Keyword(s):  
Feed Intake ◽  
Laying Hens ◽  
Egg Laying ◽  
Public Concern ◽  
Feather Pecking ◽  
Nest Boxes ◽  
Alternative Systems ◽  
Current Alternative ◽  
High Feed ◽  
Battery Cages

There is continuing public concern about the welfare of poultry kept in battery cages. However, current alternative systems would be unsuitable to fill the gap if cages were to be banned. Many welfare problems have been encountered with alternative systems. These include feather pecking, cannibalism, poor foot condition, bone breakage, poor production, high feed intake and floor egg laying. In 4 studies, between 1988 and 1992, the effect of the Gleadthorpe design of perchery on the performance, behaviour and welfare of laying hens was evaluated.The perchery consisted of 2 perch units constructed on wooden slatted platforms over a droppings pit. A block of 5 tier high nestboxes was provided along each side of the perchery. The nestboxes were of a rear roll-away type and contained “Astroturf” nest pads. Litter areas were available between the 2 perch units and between the perch units and the blocks of nest boxes.

Behavioral changes in laying hens after introduction to battery cages, furnished cages and an aviary

2006 ◽  
Vol 77 (2) ◽  
pp. 242-249 ◽  
Author(s):  
Tsuyoshi SHINMURA ◽  
Yusuke EGUCHI ◽  
Katsuji UETAKE ◽  
Toshio TANAKA
Keyword(s):  
Laying Hens ◽  
Behavioral Changes ◽  
Battery Cages

scholarly journals A machine vision system to detect and count laying hens in battery cages

animal ◽  
2020 ◽  
Vol 14 (12) ◽  
pp. 2628-2634
Author(s):  
O. Geffen ◽  
Y. Yitzhaky ◽  
N. Barchilon ◽  
S. Druyan ◽  
I. Halachmi
Keyword(s):  
Machine Vision ◽  
Laying Hens ◽  
Vision System ◽  
Machine Vision System ◽  
Battery Cages

Impacts of stricter legal standards in the EU for keeping laying hens in battery cages

2002 ◽  
Vol 58 (3) ◽  
pp. 365-370 ◽  
Author(s):  
R. Wolffram ◽  
J. Simons ◽  
A. Giebel ◽  
R. Bongaerts
Keyword(s):  
Laying Hens ◽  
Legal Standards ◽  
Battery Cages ◽  
The Eu

Synchronization of behavior among laying hens in battery cages

1994 ◽  
Vol 40 (2) ◽  
pp. 153-165 ◽  
Author(s):  
A.B. Webster ◽  
J.F. Hurnik
Keyword(s):  
Laying Hens ◽  
Battery Cages
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