- 期刊
國際乳用種公牛遺傳評估查詢系統（SIGB）之建置I.優質種公牛性能資訊查詢模組
The development of a system for inquiring genetic evaluation of international dairy bulls (SIGB) I. Performance information query module of elite dairy bulls
摘要
本研究旨在建立一個資訊服務平臺，提供國內乳牛場選擇優質種公牛資料，以作為母牛配種及改良牛群性能之參考工具。「國際乳用種公牛性能遺傳資訊查詢模組」為全中文化動態網頁查詢模式，使用者以國家動物育種碼可迅速查得國際認證之優質種公牛的基本資料及其泌乳、體型、管理與線型功能體型等性狀之遺傳評估資訊；「國際乳用種公牛性能遺傳評估資料庫」係整合來自美、加、歐洲等27國93,598頭優質種公牛遺傳評估紀錄，其中以美國所佔比例最高為67,631頭（69.8%）。種公牛性能遺傳評估摘要統計以平均值及其標準偏差表示，泌乳性狀之預測傳遞能力包括乳產量、乳脂肪量與乳蛋白質量等3項，分別為642±778 kg、32.8±30.3 kg與24.3±2.8 kg；可信度為75.1±7.9%；體型性狀有體型、乳房組成指數與腿蹄組成指數等3項，分別為1.45±0.18、1.31±1.13與1.58±1.52、可信度為76.4±6.7%；管理性狀包括體細胞數分數、使用年限、女兒牛受孕優勢與分娩難易度等4項，分別為2.9±0.2、2.2±2.6個月、0.2±1.3%與6.8±1.7%，可信度為75.8±8.0%；線型功能體型性狀中，以臀之角度（0.20±0.96）、後肢側觀（-0.06±0.94）及乳頭長度（-0.09±0.98）等3項之標準傳遞能力平均值趨近0，其餘15項性狀皆為不等強度的正向趨勢。本系統可協助酪農依據場內乳牛生產性能表現，擬定選擇優質種公牛之冷凍精液來進行性能矯正配種，促進乳牛生產性能及使用年限之遺傳改進。
並列摘要
A system for inquiring genetic evaluation of international dairy bulls (SIGB) I. Performance information query module of elite dairy bulls was developed at website http://www.tlrihc.gov.tw. The purpose of this study was to establish a service platform providing information of international bulls to dairy farmers as a reference tool to select elite bulls to mate cows for improving dairy herd performance in Taiwan. This bull genetic evaluation module was based on dynamic web query mode to provide the user using National Association Animal Breeding code (NAAB code) to inquiry the basic information of the international certificated bulls and their traits which included milk production, type, management and linear functional type traits etc. The genetic evaluation database of SIGB integrated the international bulls genetic information from United States, Canada, Europe and other 27 countries. There were 93,598 head high-quality dairy bulls with genetic evaluation records. The bull genetic evaluation information from the United States was the highest proportion with 67,631 bulls (69.8%). The summarized mean and standard deviation and reliability (R%) of milk production (PTAM), milk fat yield (PTAF) and milk protein yield (PTAP) were 642 ± 778 kg, 32.8 ± 30.3 kg, 24.3 ± 2.8 kg and 75.1 ± 7.9%, respectively. Among the predicted transmitting ability of type traits (PTAT), udder composition (UDC), leg and feet composition (FLC), the summarized mean and standard deviation and R% were 1.45 ± 0.18, 1.31 ± 1.13, 1.58 ± 1.52 and 76.4 ± 6.7%, respectively. Management characters include somatic cell count score (SCS), productive life (PL month), daughter pregnancy rate (DPR%) and daughter calving ease (DCE%). The summarized mean and standard deviation and R% were 2.9 ± 0.2, 2.2 ± 2.6 months, 0.2 ± 1.3 and 6.8 ± 1.7 and 75.5 ± 8.0, respectively. The standard transmitting ability (STA) of the linear functional type traits which included rump angle (0.20 ± 0.96), rear legs side (-0.06 ± 0.94) and teat length (-0.09 ± 0.98) was close to the average of 0. The STA of other 15 type traits varied positive trend. This system would be able to assist dairy farmers based on cows performance to select elite bulls for corrective mating to promote genetic improvement of dairy herd milk production and their production life.