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題名 | 吡啶甲酸鉻添加量對離乳仔豬生長和免疫反應之影響=The Effects of Chromium Picolinate Supplementation on Growth Performance and Immunity Response of Weanling Pigs |
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作者 | 李德南; 顏宏達; 沈添富; 陳保基; | 書刊名 | 中國畜牧學會會誌 |
卷期 | 26:4 1997.12[民86.12] |
頁次 | 頁373-386 |
分類號 | 437.654 |
關鍵詞 | 鉻; 生長性能; 免疫反應; 離乳仔豬; Chromium; Growth performance; Immunity; Weanling pigs; |
語文 | 中文(Chinese) |
中文摘要 | 採用24頭4 週齡無特定病原(SPF)雜交離乳仔豬(平均體重6.94kg),逢機分配於 四處理組中,每處理平均體重相近且性別各半,各組添加�p啶甲酸鉻(1)0、(2)200、(3)400 、和(4)800 ppb 的鉻,以探討飼糧中鉻在離乳仔豬生長和免疫反應上之反應。豬雙個別任 食飼養7週(平均體重約31.31kg),所有試驗豬隻於試驗第2 和5週分別注射假性狂犬病疫苗 (Pseudorabies virus, PR),期間定期採血進行血液組成、PR抗體中和力價與免疫球蛋白 濃度,以及半數豬隻測定血液單核細胞(Peripheral blood mononuclear cell, PBMC)之增 生能力 (Blastogensis)。飼糧中添加鉻極顯著 (P<.01) 提高血漿中鉻濃度,但未顯著影響離 乳後 7 週之生長性能, 其中添加 400 ppb 鉻具有提高離乳後 4 週期間之日平均增重和飼 料利用效率之趨勢。 添加鉻雖不影響血漿中之葡萄糖、胰島素、皮質醇濃度及胰島素 / 萄 葡糖之比率, 但在免疫功能上,可改善離乳後 5~7 週之 PR 體抗中和力價,而 PBMC 之淋 巴球增生反應對植物血凝素 (Phytohemagglutinin) 之刺激於試驗第 2 週有增加之趨勢, 但於第 6 週卻對美洲商陸致裂殖原 (Pokeweed mitogen) 之刺激呈現顯著地抑制 (P<.05) 反應。添加鉻具增加第 6 週免疫球蛋白 G(P<.15) 與總和各週之免疫球蛋白 M 濃度之趨勢 (P<.07)。綜合上述結果,飼糧中添加 400 ppb 鉻可改善離乳 4 週後仔豬之免疫反應。 |
英文摘要 | The effects of chromium (Cr) supplementation (chromium picolinate) on growth performance and immunity response of weanling pigs were investigated by using 24 crossbred pigs (4-week-old average body weight 6.94 kg). Pigs were randomly assigned to 4 treatments;(1)0,(2)200,(3)400, and (4)800 ppb of Cr supplementation each treatment was housed in 6 pens and allowed feed and water ad libitum during experimental period (7 weeks, final average body weight 31.31 kg). At the 2nd and 5th week, the pigs were immunized with Pseudorabics virus (PR), then blood was collected weekly for analyses of blood constituents, plasma antibody to PR, immunoglobulins, and leucocyte counts. Peripheral blood mononuclear cells (PBMC) mitogen-induced blastogensis were then performed on the pigs in split groups on weeks 2,4, and 6. Cr supplementation significantly (P<.01) increased plasma Cr, but there was no effect on growth performance, however, 400 ppb Cr supplementation tended to increase daily gain and feed efficiency during the 0-4 week period after weaning. The plasma glucose, insulin, cortisol, or insulin/glucose ratio were not influenced by dietary Cr levels. Cr increased anti-PR titers during weeks 5 and 7 (P<.05) and PBMC blastogensis by PHA-induced at weeks 2(P<.10), respectively, but decreased PWM-induced blastogensis at week 6. Immunoglobulin G at week 6 (P<.15) and overall means of immunoglobulin M(<.07) throughout weeks 2, 4 and 6 tended to higher for supplemental Cr. The results suggested that supplemental 400 ppb Cr from chromium picolinate might enhance immunity of pigs above 4 weeks after weaning. |
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