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首页> 外文期刊>Revista Brasileira de Ciência Avícola >Effect of Incubator Type and Broiler Breeder Age on Hatchability and Chick Quality
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Effect of Incubator Type and Broiler Breeder Age on Hatchability and Chick Quality

机译：培养箱类型和肉鸡育种者年龄对孵化性和小鸡质量的影响

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Two experiments were conducted to evaluate the effect of broiler breeder age and incubator type on hatching parameters, hatch window, embryo diagnosis results, and hatchling physical quality. The treatments consisted of a combination of three broiler breeder ages (29, 35 and 59 weeks of age) and two incubator types (single stage, SS; or and multiple stage, MS). A completely randomized design in a 3x2 factorial arrangement was applied. In Experiment I, 1,896 eggs were used and 360 eggs in Experiment II. There was an interaction between breeder age and incubator type only for hatchling physical quality score. Independently of incubator type, hatchability rate, late embryo mortality, and egg contamination were higher in the eggs laid by older breeders (59-wk-old). Early mortality (0-4 days) was higher in the embryos from young breeders (29-wk-old). A shorter hatch window birth was obtained in the SS incubator, resulting in higher hatchling body weight relative to egg weight, and better hatchling physical quality score. Both types of incubators provide good conditions for embryo development; however, the physical quality of chicks derived from eggs from intermediate-aged breeders (35-wk-old) is better when eggs are incubated in SS incubators.
机译：进行了两次实验以评估肉鸡饲养员年龄和培养箱类型对孵化参数，孵化窗口，胚胎诊断结果和孵化物质质量的影响。该治疗包括三种肉鸡繁殖者（29,35和59周龄）的组合和两个培养箱类型（单级，SS;或多阶段，MS）。应用了3x2因子安排中的完全随机设计。在实验中，使用1,896个鸡蛋，实验II中有360个鸡蛋。育种者年龄和培养箱之间存在相互作用仅用于孵化物理质量得分。独立于孕妇类型，孵化率，晚期胚胎死亡率和蛋污染较大的鸡蛋较高，较旧的育种者（59-WK-Old）。来自幼儿胚胎的胚胎早期死亡率（0-4天）（29-WK-Old）较高。在SS培养箱中获得了较短的孵化窗生出来，导致孵化体重较高，相对于鸡蛋重量，以及更好的孵化体质量分数。两种类型的孵化器都为胚胎发育提供了良好的条件;然而，当蛋孵育培养箱中孵育鸡蛋时，从中等老年人育种者（35 WK-OND）衍生的鸡肉的身体质量更好。

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