第四十四卷(2015)
凱馨桂丁土雞之產蛋性能改進
林德育(1) 曾淑貞(2) 賴永裕(1) 劉曉龍(1) 吳明哲(1)
(1)行政院農業委員會畜產試驗所 (2)中華醫事科技大學
為改善凱馨實業股份有限公司紅羽土雞之產蛋性能進而建立凱馨桂丁土雞品在。以該公司 原有紅羽土雞群選留種雞 6 公 72 母建立選育族群，候選種雞選留標準除雛白病檢測、 膚色評分及體重外，以候選母雞之產蛋性能與親代產蛋性能來選留種母雞，而候選公雞則 以精子品質與親代產蛋性能來選留種公雞。經 6 個世代的產蛋數選育改良，不同世代母 雞產第 1 枚蛋的日齡與 40 週齡產蛋數在世代間存在極顯著差異(P < 0.001)，在 G1、 G2、G3、G4、G5 及 G6 世代母雞產第 1 枚蛋的日齡分別為 184±20 天、192±26 天、 224±23 天、204±18 天、190±14 天 及 186±22 天，達 40 週齡產蛋數分別 為 60.4±23.0 枚、53.3±22.6 枚、32.4±17.0 枚、43.5±15.2 枚、61.1±13.8 枚及 70.2±15.2 枚，平均達 40 週齡產蛋數改進 9.8 枚。結果顯示，以達 40 週齡產蛋數來選留種雞可提升土雞的產蛋性能。
關鍵語:產蛋性能、凱馨桂丁土雞、選育
IMPROVEMENT OF EGG PRODUCTION PERFORMANCE IN KAISHING GUIDING NATIVE CHICKEN
D. Y. Lin(1), S. J. Tzeng(2), Y. Y. Lai(1), S. L. Liu(1) and M. C. Wu(1)
(1) Livestock Research Institute, Council of Agriculture (2) Chung Hwa University of Medical Technology
To improve the egg production performance of red feathered chickens in Kai Shing Trading Co., Ltd., and then to establish Kaishing Guiding Native Chicken line. Six rooster and 72 hens from original red feathered chicken flock were selected as selection flock. The selection standards of candidate breeders were in addition to PD negative, skin color score and body weight. And Hens were selected with not only their own but also dam's egg production performance. Roosters were selected with their own sperm quality and their dam's egg production performance. To analyze egg production performance of those hens from six generations, there were significant differences in the age at first egg(AFE) and egg number up to 40 weeks of age (EN40) were detected among the generations (P <0.001). The average of AFE of hens in G1, G2, G3, G4, G5 and G6 were 184±20 days, 192±26 days, 224±23 days, 204±18 days, 190±14 days and 186±22 days, respectively. And the mean of EN40 of hens in G1, G2, G3, G4, G5 and G6 were 60.4±23.0 eggs, 53.3±22.6 eggs, 32.4±17.0 eggs, 43.5±15.2 eggs, 61.1±13.8 eggs and 70.2±15.2 eggs, respectively. After six generation selection, there were 9.8 eggs improvement in EN40 of hens. Our result shows breeders were selected with EN40 could improve egg production performance of native chicken.
Key Words: Egg production performance, Kaishing Guiding Native Chicken, Selection
  
|
|
|
