洛島紅 (♂) 與名古屋 (♀) 雜交一代之觀察
Other Title
Results of Crossing the Rhode Island Red Male and Nagoya (Japanese Breed) Female of Poultry
Journal
農業研究
Journal Volume
4
Journal Issue
2
Start Page
42
End Page
47
Date Issued
1953-09-02
Date
1953-09-02
Author(s)
李登元
T.Y. Lee
Abstract
1．該F1之外觀色澤近似洛鳥紅，名古屋初生雛頭頂具有小黑點之特徵及腳脛鉛色已不復見。 2．該F1♀之平性成熱之體重範園爲1.680-2.335公斤，其平均爲1.928±0.196公斤，其性成熟年齡範國爲217-321天，平均爲256.380±36.374天，而並不較其兩親代者爲早。其體成熟年齡平均約爲十個月，公爲42星期，母爲46星期，母雞稍晚。
Studies were conducted over two years period on the hybrids of male Rhode Island Red and female Nagoya. The data gave the following results. 1. The down color of the hybrid was more like that of the Rhode Island Red. The small black spot on the head of baby chick and the lead color shanks of Nagoya disappeared in F1. 2. The sexual maturity of this F1, averaged 256.380±36.374 days, not earlier than that of their parents. And the body maturity of this F1 was about 10 months. The F1 male gained the maximum body weight slightly earlier than the F1 female gained.
Publisher
農業試驗所
Type
journal article
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