Evidence in favour of alternative systems for laying hens
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Evaluation of Two Laying Systems (Floor vs. Cage) on Egg Production, Quality and Safety
A study was conducted to evaluate the effects of two laying systems (floor versus cage) on egg production, egg quality, and microbial safety. One hundred and eighty 42 wk old laying hens were separated into two groups of 90 hens each, and housed in laying cages and a floor laying system. Eggs from the hens were collected for 2 weeks, and hen-day egg production, egg quality (whole egg, albumen, ...
متن کاملInfluence of dried tomato pomace as an alternative to wheat bran in maize or wheat based diets, on the performance of laying hens and traits of produced eggs
In a 2 3 2 factorial arrangement, 144, fifty–four-week-old laying hens, in 12 treatments with 12 replicates for each treatment, received one of 12 diets based on maize or wheat containing three levels of dried tomato pomace (DTP: 0, 50 and 100 g/kg) as a substitute for wheat bran, and two levels of pigment (0 and 900 mg/kg), for 9 weeks. Weight gain (WG), egg production (EP), egg weight (EW...
متن کاملResearch about the Way of Action of the Alternative Systems for Maintening the Laying Hens, on the Dynamic of Weight Growing, of Egg Production and Laying Intensity
Exploiting hens in alternative growing systems, influences the body development, the egg production and the intensity of layng. Blending hem exploiting in a certain maitaining system whit the production demands asks for a long scientific reserch.
متن کاملFeather Pecking of Laying Hens in Different Stocking Density and Type of Cage
Both stocking rate and housing systems are main factors influencing the occurrence of feather pecking in laying hens raised in conventional cage system. This study examines the effects of different type of cage and stock density on feather pecking behaviour in hens. Total of 216 Hisex Brown hens at 16 weeks of age were randomly selected and put into 2 types of battery cages: conventional cages ...
متن کاملAn HSUS Report: A Comparison of the Welfare of Hens in Battery Cages and Alternative Systems | Prepared by Drs. Shields and Duncan 1 An HSUS Report: A Comparison of the Welfare of Hens in Battery Cages and Alternative Systems
Housing systems for egg-laying hens range from small, pasture-based flocks to large, commercial-scale operations that intensively confine tens of thousands of hens indoors. The overwhelming majority of laying hens used for commercial egg production in the United States are confined in battery cages and provided 432.3 cm (67 in) of space per bird. Cages prevent hens from performing the bulk of t...
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تاریخ انتشار 2005