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99.種雞生長性能及孵化率之場內檢定

邢湘琳 林德育 吳明哲

行政院農業委員會畜產試驗所

為協助土雞業者建立種雞生長性能及種蛋孵化率之場內檢定技術，提昇台灣土雞生產效益。結合行政院農業委員會畜產試驗所創新育成中心進駐之土雞種雞場，進行土雞公雞與母雞上市前1週齡體重場內檢測，以及種母雞32至37周齡進行人工授精之個體種蛋之孵化率（出雛數/入孵蛋數）檢定。該場紅羽土雞G1世代雞隻8週齡平均體重公母分別為1822±220公克與1507±168公克(平均±標準偏差)，紅羽土雞G1世代種雞孵化率為73.1±28.7％(平均±標準偏差)，在各品系間有顯著差異(P<0.01)，故可依據此檢定結果作為選留優良生長性能及孵化率雜交後代之選種用。

關鍵語：種雞、生長性能、場內檢定

ON FARM TEST FOR GROWTH PERFORMANCE AND HATCHING RATE IN NATIVE CHICKEN BREEDING FLOCK

S. L. Hsing, D. Y. Lin, and M. C. Wu

Livestock Research Institute (LRI), Council of Agriculture

In order to help native chicken breeding farms to establish the techniques of on farm test for growth performance and hatching rate in their breeding flock. Cooperating with those of native chicken breeding farms under the program of the Innovation Incubator Center of Livestock Research Institute, we proceeded on farm test. Body weight of red feather native chicken was measured before one week of marketing age. Records of hatching rate (chick number/egg number of hatchery) of individual hen will collected from 32~37 week of age. Body weight at 8-week-age in male and female native chickens were 1822 ± 220 g and 1507 ± 168 g (mean ± SD), respectively. Their hatching rate is 73.1±28.7％(mean ± SD). There is significant difference in hatching rate among six lines of this flock (P<0.01). Therefore, we can select chickens with good growth performance and hatching rate of their parent as candidate breeding chicken according to records of on farm test.

Key Words: Breeding Chicken, Growth Performance, On Farm Test