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首页> 外文期刊>Spanish Journal of Agricultural Research >Rearing, bird type and pre-slaughter transport conditions of broilers II. Effect on foot-pad dermatitis and carcass quality
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Rearing, bird type and pre-slaughter transport conditions of broilers II. Effect on foot-pad dermatitis and carcass quality

机译：肉鸡的饲养，禽类和屠宰前运输条件II。对脚垫皮炎和car体质量的影响

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摘要

A multivariable linear model was used to analyse the incidence of carcass quality defects over one year in a commercial database that included 1,856 flocks of Ross broilers (9,188 shipments, 1,975,420 carcasses inspected). The incidence of foot-pad dermatitis (FPD), scratches and wing and back haematomas was scored and analysed in terms of the effects of transport distance, arrival time to the slaughterhouse, waiting time at the slaughterhouse, maximum outside temperature on the day of transport, feed conversion rate, stocking density, bird type (yellow-skinned females or males, white-skinned females or males?and roaster females), thinning (birds transported after thinning, birds remaining after thinning, and non-thinned flocks), bed litter type (rice hulls, chopped straw or wood shavings), and ventilation system (dynamic, static or tunnel). The incidence of FPD was significantly ( p 0.001) lower at higher maximum temperatures and higher in flocks with a higher feed conversion rate. FPD also increased with stocking density (kg/m 2 ) and was, on average, 5.0% higher in males than females. Regarding thinning, FPD was 13% lower in birds transported after thinning. Birds raised on chopped straw had more FPD (49.3%), followed by wood shavings (31.1%). Scratches were higher at higher temperatures and increased with transport distance. Birds transported after thinning had 5.8% more scratches than non-thinned birds, while increased stocking density (kg/m 2 ) on the farm tended to increase scratches. Back haematomas were 32.6% higher in birds that were thinned, while wing haematomas increased with stocking density (kg/m 2 ). Back haematomas were also 23.7% higher in males and more common in white-skinned birds.
机译：在一个商业数据库中，使用多变量线性模型来分析一年以上car体质量缺陷的发生率，该数据库包括1,856批罗斯肉鸡（9,188批，检查了1,975,420具cas体）。根据运输距离，到达屠宰场的时间，在屠宰场的等待时间，运输当天的最高外部温度的影响，对脚垫性皮炎（FPD），划痕，机翼和背部血肿的发生情况进行评分和分析，饲料转化率，放养密度，禽类（黄皮雌性或雄性，白皮雌性或雄性？和焙烤雌性），稀疏（稀疏后运输的鸟类，稀疏后保留的鸟类和未稀疏的鸡群），床垃圾类型（稻壳，切碎的稻草或刨花）和通风系统（动态，静态或隧道式）。在较高的最高温度下，FPD的发生率显着降低（p <0.001），而在具有较高饲料转化率的鸡群中，FPD的发生率则较高。 FPD也随着放养密度（kg / m 2）的增加而增加，男性平均比女性高5.0％。关于稀疏，稀疏运输后的家禽的FPD降低了13％。用切碎的稻草饲养的鸟的FPD（49.3％）更多，其次是刨花（31.1％）。在较高温度下划痕较高，并随运输距离增加。变稀后运输的鸟类的划痕比未变薄的鸟类多5.8％，而农场的饲养密度（kg / m 2）增加则倾向于增加划痕。变瘦的禽类的背部血肿高32.6％，而翼状血肿随饲养密度（kg / m 2）增加。雄性的背部血肿也增加了23.7％，白皮肤的鸟类更常见。

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