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首页> 外文期刊>Korean Journal of Poultry Science >Study on the Characteristics of Feather Developing Pattern and Morphology in Early- and Late-Feathering Korean Native Chickens
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Study on the Characteristics of Feather Developing Pattern and Morphology in Early- and Late-Feathering Korean Native Chickens

机译：早期和晚期羽毛韩国天然鸡的羽毛发展模式和形态特征研究

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摘要

Chicken feathers could be classified into early-feathering (EF) and late-feathering (LF) depending on the development and patterns of the wing and tail feathers. Currently, feather-sexing is a widely used chick sexing method in the industry. This study was carried out to suggest the method of classifying of EF and LF chicks to establish auto-sexing Korean native chicken (KNC) strains. The development and morphology of wing feathers and tail feathers in 856 KNCs from hatching to 55-days old were analyzed to classify EF and LF chicks. We also performed PCR analysis using AT-specific gene primers to confirm the agreement between the phenotypes and genotypes of EF and LF chickens. In the results, the EF chicks had long primaries and coverts, and there was a significant difference in length between primaries and coverts. The LF chicks had shorter primaries and coverts than the EF chicks, and showed little difference in the length between primaries and coverts. LF chicks could be classified into four groups: LF-Less, LF-Scant, LF-Equal and LF-Reverse according to their wing feather patterns. EF chicks had 1.5 times longer primaries than LF chicks until they were 15-days old, but the lengths were almost the same at 50-days old. The tail feathers of the EF chicks were apparent at 5-days old, but those of the LF chicks were short and indefinite at that time. When EF and LF chicks were classified by the length of primaries being more or less than 9 mm, the classification accuracies for EF and LF chicks were 96.2% and 85.4%, respectively, compared to the PCR results. In conclusion, juvenile EF and LF KNC showed distinct differences in feather development and morphology, and could be easily distinguished at one day-old.
机译：根据机翼和尾羽的开发和图案，鸡羽可以分为早期羽毛（EF）和晚期羽毛（LF）。目前，羽毛性是在行业中广泛使用的小鸡性爱方法。本研究进行了表明，旨在分类EF和LF小鸡的方法，以建立自动性行为韩国本地鸡（KNC）菌株。 856 Kncs的翼羽和尾羽的开发和形貌分析到55天的山上，分析了EF和LF小鸡。我们还使用特定于特定的基因引物进行PCR分析，以确认EF和LF鸡的表型和基因型之间的协议。在结果中，EF小鸡具有长初始和覆盖物，初始和覆盖之间的长度差异很大。 LF小鸡的初始和覆盖物比EF小鸡更短，并且在初学者和覆盖物之间的长度差异很小。 LF Chicks可以分为四组：LF-DLES，LF-Scant，LF-SCALD，LF相等，LF相等，LF相等，根据其翼形图案而逆转。 ef小鸡比lf小鸡更长的比例比lf小鸡更长，直到它们为15天，但长度几乎与50日龄相同。 EF小鸡的尾羽在5天的山上显而易见，但是当时的LF小鸡的雏鸡是短而无限期的。当通过更多或小于9mm的初始初始分配EF和LF雏鸡时，与PCR结果相比，EF和LF小鸡的分类精度分别为96.2％和85.4％。总之，少年EF和LF KNC在羽毛发育和形态方面表现出明显的差异，并且可以在一天大的情况下轻松区分。

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