Effects of dietary energy content on the performance of laying hens in furnished and conventional cages

Poultry Science
E ValkonenJ Valaja

Abstract

This study examined the effects of dietary energy content on the egg production and egg quality of hens kept in 3-hen conventional cages or 8-hen furnished cages. A total of 1,088 Lohmann Selected Leghorn hens were housed in either furnished or conventional cages and offered low- or high-energy diets (from 2,342 to 2,414 kcal/kg or from 2,581 to 2,629 kcal/kg) during 3 consecutive feeding phases of 20, 16, and 16 wk, respectively. The same dietary energy effects were observed in both cage systems. The hens that received the low-energy diet consumed more feed (P < 0.01) and produced fewer eggs per day (P < 0.05) than the birds fed the high-energy diet. Over the entire experiment, housing had no significant effects on production parameters, but during the third feeding phase, the production rate was smaller in furnished cages than in conventional cages (P < 0.01). Because of the greater live weight of the hens in furnished cages at the beginning of the experiment, these hens consumed more feed during the first feeding phase than the hens in conventional cages. During the third feeding phase, the hens in furnished cages consumed less feed than those in conventional cages (P < 0.01), probably because of their better feather cover. ...Continue Reading

Citations

Sep 6, 2014·Animal : an International Journal of Animal Bioscience·M TraineauP Lescoat
Oct 23, 2018·Avian Pathology : Journal of the W.V.P.A·A ShiniW L Bryden
Oct 18, 2019·Avian Pathology : Journal of the W.V.P.A·Shaniko ShiniWayne L Bryden

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