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Evaluation of field-stored switchgrass hay as bedding material for broilers
Journal of Applied Poultry Research ( IF 1.9 ) Pub Date : 2020-02-04 , DOI: 10.1016/j.japr.2019.11.002
J.L. Purswell , J.D. Davis , G.D. Chesser , J.W. Lowe

Availability and expense of preferred bedding materials such as pine shavings has prompted evaluation of other materials. Grass hay derived from high-yielding biomass cultivars has been successfully employed as bedding material in both research and commercial applications. Grass hay for ruminant feed can be stored outdoors if protected, and outdoor storage may provide additional flexibility in transportation and supply of grass hay bedding. This study examined live performance in straight-run broilers reared on new grass hay bedding and grass hay bedding that had been stored outdoors in polyethylene wrap for 2 seasons. Live performance was affected primarily in the starter and grower phases, with stored hay bedding treatments resulting in depressed BW (59 g difference; P = 0.0034) and body weight gain (58 g difference; P = 0.0038) in the grower phase. FCR was significantly elevated in both the starter phase (0.02 g:g difference; P = 0.0052) and the grower phase (0.07 g:g difference; P < 0.0001) for the stored hay bedding treatment. Overall flock FCR was significantly increased (P = 0.0404) by 0.05 g:g for the stored hay bedding treatment. Performance declines diminished during the finisher and withdrawal diet phases, likely because of a reduction in litter consumption. Mortality was not different between treatments (N = 1.06% and S = 1.57%); stored hay did not appear to affect bird health.



中文翻译:

评价野外储存的柳枝hay干草作为肉鸡的垫料

首选的床上用品(例如刨花)的可获得性和费用促使人们对其他材料进行了评估。来自高产生物量品种的干草已经成功地用作研究和商业应用的垫料。反刍动物饲料的草干草如果受到保护,则可以存储在室外,而室外存储可以为草床的运输和供应提供更多的灵活性。这项研究检查了在新草干草床上饲养的直管型肉鸡的活绩,这些草干草已经在室外用聚乙烯膜包裹了2个季节。生活性能主要在开始阶段和生长阶段受到影响,存储的干草堆肥处理导致体重下降(59 g差异;P = 0.0034)和 生长阶段的体重增加(差异58 g;P = 0.0038)。 储存干草堆肥处理的起始阶段(相差0.02 g:g;P  = 0.0052)和生长期(相差0.07 g:g;P <0.0001)的FCR均显着升高。 对于存储的干草堆肥处理,总体鸡群FCR显着增加(p = 0.0404)0.05 g:g。肥育期和戒断日粮阶段的性能下降有所减少,这可能是由于减少了垫料消耗造成的。两种治疗方法的死亡率无差异(N = 1.06%,S = 1.57%);干草堆似乎没有影响鸟类健康。

更新日期:2020-02-04
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