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The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cages
cage space allowance egg yield feather score plumage condition mortality egg quality
2015/6/5
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 d...
The quality comparison of eggs laid by laying hens kept in battery cages and in a deep litter system
laying hen rearing technology egg weight egg albumen weight yolk weight yolk cholesterol yolk colour shell strength
2015/6/2
At present the laying hen rearing is transformed into alternative housing systems which include a deep litter system. As for the poultry nutrition, the replacement of animal protein with vegetable pro...
General Behaviors and Perching Behaviors of Laying Hens in Cages with Different Colored Perches
Perch Color Laying Hen Preference Behavior
2016/5/10
Color is one of the perch properties. This study was conducted to investigate the general behaviors and perching behaviors in laying hens under different group size (stocking density), and to understa...
Comparison of Selection and Mating Systems for Maintenance of Closed Poultry Lines Using Several Breeding Cages
closed line effective population size inbreeding coefficient mating selection
2009/7/30
In a typical maintenance plan of closed poultry lines, breeding individuals are divided into several groups each with one male and several females. The groups are put into different breeding cages and...
Effect of time of oviposition on egg quality characteristics in cages and in a litter housing system
cages deep litter oviposition time egg weight shell quality albumen quality yolk quality
2015/6/1
Two experiments were carried out to investigate the effect of the time of oviposition on egg quality characteristics in two different housing systems (cages vs. litter). ISA brown hens from 20 to 64 w...
Effect of Claw Abrasives in Cages on Claw Condition, Feather Cover and Mortality of Laying Hens
Laying Hens Claw Abrasives Mortality
2016/4/18
A trial was conducted to determine the effect of abrasive strips and abrasive paint in layer cages on claw length and claw sharpness, foot condition, feather cover and mortality of hens. During the pr...
Effects of Early Feed Restriction on Breast and Leg Meat Composition and Plasma Lipid Concentration in Unsexed Broiler Chickens Reared in Cages
Early Feed Restriction Breast Meat Leg Meat Plasma Lipid Unsexed Broilers
2016/4/12
The study was conducted to evaluate the effect of early feed restriction on growth, fat accumulation and meat composition in unsexed broiler chickens. In experiment 1, three hundred and fifty one-day-...