查詢結果分析
來源資料
頁籤選單縮合
題 名 | 盤固草與百慕達草對荷蘭種泌乳牛飼養價值比較=Feeding Values of Pangolagrass and Bermudagrass Hay for Lactating Dairy Cows |
---|---|
作 者 | 李春芳; 陳吉斌; 蕭宗法; | 書刊名 | 畜產研究 |
卷 期 | 32:4 1999.12[民88.12] |
頁 次 | 頁353-364 |
分類號 | 437.113 |
關鍵詞 | 盤固草; 百慕達草; 瘤胃消化; 泌乳性能; Pangolagrass; Bermudagrass; Milk performance; Ruminal digestion; |
語 文 | 中文(Chinese) |
中文摘要 | 盤固草與百慕達草是本省常用來飼養乳牛的禾本科牧草。本試驗的目的,在比較 省產盤固草與進口百慕達草對泌乳牛的飼養價值。試驗包括瘤胃消化與泌乳性能兩部分。以 瘤胃開窗母牛進行瘤胃原位 (in situ) 消化, 盤固草與百慕達草在瘤胃反序培養 0 到 96 h,比較其在瘤胃分解模式及可利用率, 另以平均泌乳天數 103 天及泌乳量 25.5kg 的 30 頭荷蘭種泌乳牛,逢機分成兩組,飼養七週測定泌乳性能。飼糧以完全混合日粗方式配製, 組成包括 50.0% 的玉米 -- 大豆粕基礎精料、18.5% 的苜蓿乾草及 25.0% 的盤固乾草或百 慕達乾草 (乾基 )。 盤固草與百慕達草的 CP 與 ADF 含量分別為 5.9 及 11.0% 與 42.0 及 33.2%( 乾基 )。 兩種草在瘤胃可利用率差異不大,而除了 ADF 外,分解速度以百慕達 草較快。盤固草與百慕達草飼糧餵飼泌乳牛群,得到相近的泌乳量、乳脂率及乳蛋白率表現 , 但盤固草組的粗收入增加 6.3 元 / 頭 / 天,兩組牛隻 3.5% 乳脂校正乳量、乳脂率與 DMI 分別為 24.5 及 24.8kg/ 頭 / 天;3.56 及 3.49% 與體重的 3.36 及 3.49%。 綜合試 驗結果顯示,中等品質的盤固草與百慕達草,在化學成分與在瘤胃消化的差異,並不顯著影 響對泌乳牛的飼養效果,但盤固草飼糧的飼養有較高的粗收入。 |
英文摘要 | Native pangolagrass (PG) and imported bermudagrass (BD) hay are common forage sources for dairy cattle in Taiwan. An in situ study and a feeding experiment were conducted to evaluate their feeding values for lactating cows. Rumen cannulated cows provided in situ environment to incubate PG and BD hay 0 to 96 h in a reverse order. Thirty midlactation cows averaged DIM 103 d and daily milk yield 25.5 kg were randomly assigned into two groups for seven wks. Experimental diets were prepared as total mixed rations and included 50% of corn-SBM concentrate, 18.5% of alfalfa hay, and 25% of PG or BD hay at DM basis. Crude protein and ADF content of PG and BD hay were 5.9 and 11.0%, and 42.0 and 33.2%, respectively (DM basis) . In situ study indicated that ruminal availability of PG and BD hay was similar. Ruminal degradation rates of BD constitutes, except for ADF, were faster than those of PG. Dry matter intakes of PG and BD groups were 3.36 and 3.49% of body weight. Cows fed PG and BD diets produced similar 3.5% FCM yield, 24.5 vs 24.8 kg, milk fat percentage, 3.56 vs 3.49% and protein percentage, but PG group increased gross income by 6.3 NT$ per day per cow. It was concluded that although there were differences in chemical compositions and ruminal digestion, feeding values of medium-quality PG and BD hay diets were similar for lactating cows. Lactating cows fed a balanced PG hay diet seemed to be able to make more profit. |
本系統中英文摘要資訊取自各篇刊載內容。