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Evaluation of sludge from paper recycling as bedding material for broilers

机译：纸张回收的污泥作为肉鸡垫料的评估

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摘要

Several materials have been used as bedding substrates in broiler production. In this work, the sludge from paper recycling was tested for its potential use as litter material and was compared with wood shavings. Moisture content, apparent density, and water-holding capacity were measured and characterized in both materials. Later, 192 male broiler chickens were distributed among 16 experimental pens, 8 of which contained wood shavings as bedding material and 8 of which contained the sludge. growth rate, consumption, tonic immobility, gait score, breast lesions, foot pad dermatitis, hock burn, tibial dyschondroplasia, and metatarsal thickness were determined in the birds. Although the moisture content of the sludge was high, it decreased strongly after 7 d of drying, reaching lower values than those of wood shavings. In general, few differences were found between the materials in terms of bird performance and welfare and only the incidence of hock burn was higher in the sludge than in the wood shavings. Although further research is needed, sludge from paper recycling is a possible alternative to traditional bedding materials because it achieves most of the requirements for broiler bedding materials and does not show negative effects on the birds.
机译：几种材料已被用作肉鸡生产中的垫料基材。在这项工作中，对纸张回收产生的污泥作为垃圾材料的潜在用途进行了测试，并与刨花进行了比较。测量并表征了两种材料中的水分含量，表观密度和持水量。后来，在16支实验围栏中分配了192头雄性肉鸡，其中8包含刨花作为垫料，8包含了污泥。确定了家禽的生长速度，消耗，强直性，步态得分，乳房病变，足垫皮炎，飞节烧伤，胫骨软骨发育不良和ia骨厚度。尽管污泥的水分含量很高，但在干燥7天后，其水分含量急剧下降，达到低于刨花的水平。通常，在鸟类性能和福利方面，材料之间几乎没有差异，只有污泥中的飞节燃烧发生率比刨花高。尽管还需要进一步的研究，但废纸回收产生的污泥可能是传统垫料的替代品，因为它可以满足肉鸡垫料的大部分要求，并且不会对禽类产生负面影响。

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