頁籤選單縮合
題名 | 土番鴨白色羽毛出現率之改進=Improvement on Percentage of White Plumage in Mule Ducks |
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作者姓名(中文) | 李舜榮; 康清亮; | 書刊名 | 畜產研究 |
卷期 | 30:3 1997.09[民86.09] |
頁次 | 頁293-299 |
分類號 | 437.73 |
關鍵詞 | 土番鴨; 白色羽毛; 毛色等級改進; Mule duck; White plumage; Plumage grade improvement; |
語文 | 中文(Chinese) |
中文摘要 | 白色菜鴨102品系及北京鴨品系,兩品系母番鴨分別於12級20週齡時移入個別 鴨籠飼養,並分別於22及32週齡時以公番鴨混合精液人工受精,檢定其後土番鴨毛色成績, 土番鴨依白色羽毛出現面積之大小分為12級,其後土番鴨白色羽毛出現率之母番鴨則留為 種用,各品系之檢定如下: 1.白色菜鴨第15及16代分別檢定660及714之母鴨,其後土番鴨毛色成績3級以內之 累計百分比分別是95.9%及96.0%,7級以內之累計百分比分別是9.7%99.8%。 2.北京鴨第13及14代分檢定509及507之母鴨,其後土番鴨毛色成績級以內之累計百 分比分別是68.8及80.1%.7級以內級以內之累計百分比分別是95.7及99.5%.檢定母鴨中其 後土番鴨毛色成績均在3級以內優良種母鴨,亦從第12代的46隻身提升到第14代的123 隻。 |
英文摘要 | White Tsaiya line 102 and Pekin duck linc 201 were placed in individual cage at 12 and 20 weeks of age, respectively. Pooled semen of Muscovy drakes was artificially inseminated to the ducks of each line at 22 and 32 weeks of age in order to produce and examine the muie ducks. Mule ducks were gradedto one of 15 classes depending on the area of black spot on plumage. The results of each line were as follows: 1.There were 660 and 714 female Tsaiya examined in line 102 in 15 th and 16 th generations. The cumulative percentage of progeny mule duck plumage within grade 3 (practically solid white) were 95.9 and 96.0 %, and within grade 7 (black spots on crest and back) were 99.7 and 99.8 % for each generation. 2.There were 509 and 507 female pekin ducks examined in line 201 in 13 th and 14 th generations. The cumulative percentage of progeny mule duck plumage within grade 3 were 68.8 and 80.1%, and within grade 7were 95.7 and 99.5 % for each generation The excellent female breeders with progeny mule ducks within grade 3 increased from 46 ducks in 12 th generation to 123 in 14 th generation. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。