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頁籤選單縮合
題名 | 臺灣本地黑山羊種原保存與其經濟性狀之調查=Economic Characteristics and Germplasm Preservation of Taiwan Native Black Goat |
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作者姓名(中文) | 謝瑞春; 黃政齊; 蘇安國; 吳錦賢; | 書刊名 | 畜產研究 |
卷期 | 30:2 1997.06[民86.06] |
頁次 | 頁205-213 |
分類號 | 437.58 |
關鍵詞 | 臺灣本地黑山羊; 生產性能; 泌乳性能; 繁殖; 罹病; Taiwan Native Black Goat; Growth performance; Milk production; Reproduction; Morbidity; |
語文 | 中文(Chinese) |
中文摘要 | 臺灣本地黑山羊早在十七世紀即由大陸東南地區引入臺灣本島,然而歷年來,由 於引進乳用山羊品種與之雜交,使得純種之臺灣本地黑山羊已瀕臨絕種。目前本分所保存並 繁殖大約 200 頭左右純種臺灣本地黑山羊,並就其各項生長及繁殖性狀, 如離乳前及離乳 後之生長性能、屠宰性狀、產乳量、性成熟年齡及體重、繁殖能力等加以調查,同時採集精 液及胚胎加以冷陳長期保存。仔公羊三月齡離乳體重為 13.7 公斤,仔母羊為 11.9 公斤, 每日平均餵飼含 13% 粗蛋白質及 77% 總可消化營養分之日糧,其飼料效率為 6.30。 成熟 公羊 (達三歲齡以上 ) 體重為 72 公斤,母羊為 44.8 公斤, 公羊活體重平均達 42 公斤 時其屠宰率為 41.1%,精肉率為 33.6%。 仔公羊平均日齡於 136.7 日及體重約 19.8 公斤 時達到性成熟。 產仔率 (kidding rate) 為 161.3%, 雙胎率為 54%。 每日平均產乳量為 0.8 公斤,乳脂率為 5.5%。於 5 個月的泌乳期間,平均第一個月乳產量最高,第三個月後 則快速下降。根據調查結果顯示,臺灣本地黑山羊具有早熟、多產及高精肉率之特性,將可 提供未來臺灣本地黑山羊育種之參考。 |
英文摘要 | The Taiwan Native Black Goat was first introduced to this island from southeast China in the early 1700s. This breed is now endangered year by year due to interbreeding with exotic dairy breeds in the present century. About 200 animals, presumably homogenous population of Taiwan Native Black Goat, were kept and reproduced at the Taiwan Livestock Research Institute-Henchun Station for gene pool preservation. Several growth and reproductive characteristics, such as preweaning and postweaning growth performance, carcass traits, milk production, age and body weight at puberty, and fecundity were investigated. Semen and embryos were collected and kept frozen for long-term storage. Weaning wieight at 3 - months was 13.7 kg and 11.9 kg for male and female kids, respectively. Wethers consuming a ration containing 13% crude protein and 77% total digestible nutrient gained 0.13 kg per day with a feed conversion of 6.30. The average body weight for mature bucks and does was 72.0 kg and 44.8 kg, respectively. Bucks with an average live weight of 42 kg yielded a dressing percentage of 41.1 and a lean meat percentage of 33.6. Male kids reached puberty at the age of 136.7 days at 19.8 kg body weight. The kidding rate was 161.3% and 54% birth were twins. The average daily milk production was 0.8 kg with an average fat content of 5.5 percent. These results showed that the Taiwan Native Black Goats are characterized by early sexual maturity, prolificacy, and high lean meat percentage. These attributes may make this domestic breed valuable in the goat gene pool. |
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