Studies with broilers reared on different floor types with and without padded roosts Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/qr46r391b

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  • I. Performance and Carcass Quality of Broilers Raised on Wire Flooring With and Without Padded Roosts Two experiments were performed with broilers raised on wire flooring with and without padded roosts to study the effects of bird performance and carcass quality. Each experiment had 480 straight-run commercial broilers divided equally into two treatments and reared on wire with and without padded roosts. At 49 days of age, body weights were taken and feed conversions were calculated. Birds were observed for percent mortality, percent deformed legs, percent breast blisters, percent feather follicle infection (folliculitis) and foot pad dermatitis. In Experiment 1, percent incidence breast blisters was the only parameter with a significant difference (P<.05) between birds on plain wire and birds reared on wire with padded roosts. In Experiment 2, no significant differences were observed in the parameters measured between the birds reared on wire with and without padded roosts. II. Performance and Carcass Quality with Broilers Reared On Wire Flooring, Plastic Inserts, Wood Slats and Plastic Coated Expanded Metal Flooring 2 Each With and Without Padded Roosts Commercial straight-run broilers were reared on non-litter flooring in two experiments. Experiment 1 had (control on wire; wire with padded roosts; wood slats; wood slats with padded roosts; plastic insert over wire; plastic insert over wire with padded roosts; plastic coated expanded metal; plastic coated expanded metal with padded roosts) to study the effects on broiler performance and carcass quality. In Experiment 1, mean body weights, foot pad dermatitis, feed conversion and percent incidences of mortality, deformed legs and body fat were not significantly different among the treatments. Feather soilage score and percent incidence of feather follicle infection were significantly higher (P<.05) for broilers reared on wood slats with and without padded roosts compared to those reared on wire and plastic inserts. Percent incidence breast blister was significantly higher (P<.05) for controls on wire than all other treatments. In Experiment 2, mean body weights, feed conversion and percent incidences of feather follicle infection, deformed legs and mortality were not significantly different among treatments. Feather soilage score was significantly lower (P<.05) with birds reared on wire both with and without padded roosts than those on expanded metal. Foot pad dermatitis scores and percent incidence breast blisters were significantly higher (P<.05) among controls on wire than birds on wire with padded roosts and birds on expanded metal. Percent incidence of indented keels was significantly higher (P<.05) with birds reared on floors with roosts than those without roosts.
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