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題 名 | 熱環境下哺育仔豬數對母豬繁殖性能和仔豬生長之影響(1)--初產母豬=Effects of Litter Size on Reproductive Performance of Sows and Litter Growth under Warm Environmental Conditions(Ⅰ)--Primiparous Sows |
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作 者 | 鄭焜之; 顏宏達; 許振忠; 鄭三寶; | 書刊名 | 中國畜牧學會會誌 |
卷 期 | 26:2 1997.06[民86.06] |
頁 次 | 頁153-161 |
分類號 | 437.654 |
關鍵詞 | 初產母豬; 窩子數; 繁殖性能; Primiparous sow; Litter size; Reproductive performance; |
語 文 | 中文(Chinese) |
中文摘要 | 使用53頭初產藍瑞斯和約克夏二品種雜交母豬,逢機分配於分娩後三日內調整為 哺育 6 ∼ 7、8 ∼ 9 或 10 ∼ 11 頭仔豬的三個處理組中,以探討哺育仔豬數對初產母豬 繁殖性能和其仔豬生長之影響。母豬在 26 天的哺乳期間,飼料和飲水任食。試驗結果顯示 ,夏季 (平均溫度 29.2 ℃ ) 期間, 初產母豬飼料採食量不受哺育仔豬數多寡之影響,但 哺乳期間,母豬體重和背脂損失量有隨哺育仔豬數增加而提高的趨勢。增加初產母豬哺育仔 豬數, 仔豬離乳窩重 (P<0.05) 顯著地增高, 但仔豬的每日增重和離乳體重則顯著 (P<0.05) 降低。 初產母豬離乳至再發情和到分娩間距及下產次活仔豬數並不受母豬哺育仔 豬數的影響。結果顯示,高溫飼養環境下,初產母豬泌乳期間飼料採食量不受哺育仔豬數的 影響。 |
英文摘要 | A total of fifty-three primiparous Landrace×Yorkshire crossbred sows (LY) was used. Sows were randomly allotted to nurse 6-7, 8-9, or 10-11 piglets within three days after parturition in order to study the effect of litter size on litter growth and reproductive performance of sows. Feed and water were provided ad libitum during a 26-day lactation period. The results indicated that daily feed intake of primiparous sows was unaffected by litter size in summer (average temp. 29.2 ℃ ). Although no significantly different, there was a trend that the weight and backfat thickness losses of primiparous sows increased during lactation as litter size increased. As litter size increased, the weaning weight (P<0.05) of litter also increased, but average daily weight gain and weaning weight of piglet (P<0.05) decreased in primiparous sows. Interval of weaning to estrus and parturition and live born litter size of subsequent parity were unaffected by the litter size of primiparous sows. The observations indicated that the daily feed intake of primiparious sows was not influenced by litter size during lactations under warm environmental conditions. |
本系統中英文摘要資訊取自各篇刊載內容。