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Broiler performance and litter ammonia levels as affected by sulfur added to the bird's diet
Journal of Applied Poultry Research ( IF 1.9 ) Pub Date : 2021-03-02 , DOI: 10.1016/j.japr.2021.100159
M.A. Bailey , J.B. Hess , J.T. Krehling , K.S. Macklin

Ammonia buildup in poultry houses is a concern for the poultry industry as it can lead to potential losses because of reduced bird performance, damage to the birds' skin and respiratory tract, and loss of customers owing to animal welfare issues. Current methods for ammonia control are useful, but there is considerable variation in ammonia levels from farm to farm. A potential strategy for eliminating this variation would be to approach ammonia management by using a feed additive, thereby increasing uniformity of application among farms and houses. This study tested the effects of using elemental sulfur as a feed additive (feedthrough sulfur) on ammonia levels, live performance, and paw quality of broilers raised on fresh bedding for 3 consecutive experiments. Feedthrough sulfur had no negative or positive effects on bird performance in terms of average BW and feed conversion ratio, and this treatment as well as sodium bisulfate appeared to perform at least in controlling atmospheric ammonia levels. However, no significant difference in ammonia levels was detected between any of the treatments and the control. Final litter pH was lower for feedthrough sulfur–treated birds than that of the control, and the percentage of birds with footpad lesions was lower in 2 of 3 experiments than that of the control. These results indicate that feedthrough sulfur may be a useful litter treatment compared with existing alternatives, though more research is needed to confirm this.



中文翻译:

雏鸡日粮中添加的硫对肉鸡生产性能和垫料氨水平的影响

禽舍中的氨积累是禽类行业关注的问题,因为禽类性能下降,禽类皮肤和呼吸道受损以及动物福利问题引起的顾客流失会导致潜在的损失。当前用于控制氨的方法是有用的,但是不同农场的氨水平存在相当大的差异。消除这种变化的潜在策略是通过使用饲料添加剂进行氨管理,从而提高农场和房屋之间的施用均匀性。这项研究测试了连续3个实验中使用元素硫作为饲料添加剂(直通式硫)对新鲜垫料上饲养的肉鸡氨水平,活体性能和爪子质量的影响。就平均体重和饲料转化率而言,直通式硫对禽类生产性能没有负面或正面影响,而且这种处理以及硫酸氢钠似乎至少在控制大气中的氨水平方面发挥了作用。然而,在任何处理和对照之间均未检测到氨水平的显着差异。饲喂硫磺处理的禽类的最终垫料pH值比对照组低,在3个实验中有2个实验中有脚垫损伤的禽类的百分比比对照组低。这些结果表明,与现有的替代品相比,穿心硫可能是一种有用的垫料处理方法,尽管还需要更多的研究来证实这一点。而且这种处理以及硫酸氢钠似乎至少在控制大气中的氨水平方面发挥了作用。然而,在任何处理和对照之间均未检测到氨水平的显着差异。饲喂硫磺处理的禽类的最终垫料pH值比对照组低,在3个实验中有2个实验中有脚垫损伤的禽类的百分比比对照组低。这些结果表明,与现有的替代品相比,穿心硫可能是一种有用的垫料处理方法,尽管还需要更多的研究来证实这一点。而且这种处理以及硫酸氢钠似乎至少在控制大气中的氨水平方面发挥了作用。然而,在任何处理和对照之间均未检测到氨水平的显着差异。用硫磺处理过的家禽的最终垫料pH值比对照组低,在3个实验中有2个实验中有脚垫损伤的家禽的百分比比对照组低。这些结果表明,与现有的替代品相比,穿心硫可能是一种有用的垫料处理方法,尽管还需要更多的研究来证实这一点。在3个实验中有2个实验中,有脚垫病变的鸟类百分比低于对照组。这些结果表明,与现有的替代品相比,穿心硫可能是一种有用的垃圾处理方法,尽管需要更多的研究来证实这一点。在3个实验中有2个实验中,有脚垫病变的鸟类百分比低于对照组。这些结果表明,与现有的替代品相比,穿心硫可能是一种有用的垫料处理方法,尽管还需要更多的研究来证实这一点。

更新日期:2021-03-30
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