頁籤選單縮合
題 名 | 山羊用體內助孕素釋放器之製作與應用=Construction and Application of Progestagen Internal Releasing Devices for Induction of Estrus in Goat |
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作 者 | 黃政齊; 林仁壽; | 書刊名 | 畜產研究 |
卷 期 | 31:3 1998.09[民87.09] |
頁 次 | 頁289-298 |
分類號 | 437.58 |
關鍵詞 | 山羊; 助孕素; 釋放器; 埋植物; 泡綿; Goat; Progestagen; Releasing device; Implant; Sponge; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究之目的在於研製一種較具經濟性之山羊體內助孕素(progestagen)釋放器, 俾提供推廣給農民作為母羊發情同期化、生殖季節調節及產後母羊誘發發情之用。總計研製 出矽膠管、矽膠體及泡綿等三種助孕素釋放器,其中前兩者係經由埋植方式給予,而後者則 經由陰道留置方式給予。上述三種含孕劑酮 (progesterone) 之釋放器,以卵巢切除之母羊 測試孕酮釋放至母羊血漿中之效果,結果發現,前兩種埋植式之矽膠釋放器,在母羊體內釋 出之孕酮濃度較不穩定,且在埋植及取出時之操作、羊隻之保定與皮膚之消毒等,均不如使 用泡綿在陰道內置放者之簡便。當採用泡綿分別攜帶 500、350 及 200 mg 孕酮,並以陰道 內釋放之方式應用時, 結果以含有 500 mg 孕酮之釋放器,留置於卵巢切除母羊陰道內 12 日期間,其血漿中之孕酮濃度及其變化圖像,均與市售之 CIDR 者相當。處於季節性乏情之 乳用母山羊總計 411 頭分為三組, 分別以自製含有 500 mg 孕酮 (P �� ) 或 40 mg MPA (medroxy progesterone acetate) 之泡綿, 以 CIDR 等三種釋放器,進行陰道內留置處理 11 日, 惟於釋族器取出前 2 日,每隻母羊肌肉注射 PMSG (500 IU) 與前列腺素 (125 μ g cloprostenol), 進行誘發同期化發情試驗, 結果發現母羊以含 500 mg 孕酮或 40 mg MPA 之自製泡綿釋放器處理者, 其發情百分比分別為 91.8 %與 89.7 %; 受胎率分別為 83.3 %及 84.2 %,與市售 CIDR 之處理效果 (92.7 %及 85.2 % ) 無顯著差異。 此外 , 自製釋放器在母羊陰道內留置期間之脫落率 (1.8 % ) 亦遠較 CIDR (4.8 % ) 為低, 自製之孕酮與 MPA 泡綿釋放器,其材料成本分別為臺幣 15.0 元及 24.8 元,均遠較 CIDR (85.0 元 ) 為低,值得進一步推廣應用。 |
英文摘要 | The experiment was conducted to develop appropriate progestagen releasing devices for control of goat reproduction. Three internal releasing devices were designed including silastic tube, silastic rod and sponge impregnated appropriate dosage of progesterone. The releasing rate of these devices were examined by implanting subcutaneously or inserting into the vagina of overiectomized does and monitoring the plasma progesterone by ELISA. The releasing rate of P �� from implants of silastic tubes and rods into plasma were not stable,and less convenient in practical use than intravaginal sponges. Sponges containing 200, 350 and 500 mg of progesterone and CIDR were inserted into vagina of ovariectomized does for 12 days for monitoring the releasing rate of P �� into plasma. The profiles of plasma progesterone levels in does receiving 500 mg of progesterone was similar to that in does receiving CIDR. A total of 411 seasonal anestrous does were inserted with sponges containing 500 mg of progesterone (P �� ) or 40 mg of medroxy-progesterone acetate (MPA) and CIDR followed by injection of PMSG and prostaglandin (Estrumate). The percentage of does exhibitingestrus and conception rateof estrous does in P �� (91.8% and 83.3%) and MPA (89.7% and 84.2%) groups were not significantly different from that in CIDR group (P>0.05). In addition, the cost and the missing rate of self-made sponge device during the period of vaginal placement were much lower than those of CIDR (P<0.05). These results indicated that the use of sponges containing either 500 mg of P �� or 40 mg of MPA were effective and economical in the induction of estrus in goat during seasonal anestrous period. |
本系統中英文摘要資訊取自各篇刊載內容。