頁籤選單縮合
題名 | 飼糧蛋白質型態和離胺酸來源對離乳仔豬生長性能和腸道構造之影響=Effect of Dietary Protein Type and Lysine Source on Growth Performance and Intestinal Structure of Weaned Pigs |
---|---|
作者 | 李德南; 顏宏達; 鄭永祥; | 書刊名 | 宜蘭農工學報 |
卷期 | 12 1996.06[民85.06] |
頁次 | 頁85-96 |
分類號 | 437.654 |
關鍵詞 | 離乳仔豬; 蛋白質型態; 離胺酸來源; 腸道生長; 小腸絨毛; Weaned pigs; Protein type; Lysine source; Growth performance; Intestinal structure; |
語文 | 中文(Chinese) |
中文摘要 | 採用44頭四週齡雜交離乳仔豬(初重6.28㎏),依複因子裂區設計分配於四種飼 糧處理組中。四種飼糧處理包含二種飼糧蛋白質型態,一為使用動物性蛋白質配合植物性蛋 白質原料之複雜型,其二使用植物性蛋白質原料之簡單型;二種離胺酸來源,包括添加(游 離型)和不添加合成離胺酸(結合型)。試驗分別於離乳後0-7天0-14天二期間進行,以測 定離乳仔豬生長性能、消化道重量及空腸絨毛細胞之構造與形態。結果顯示飼糧蛋白質型態 和離胺酸來源對仔豬之生長性能和腸道構造間皆無交互作用(P>.05)。飼糧蛋白質型態未 顯著影響此二測定期間之生長性能。但飼糧中添加合成離胺酸,可顯著提高離乳後0-7天期 間之每日增重。簡單型蛋白質飼糧較複雜型者在第14天時有顯著較重之大腸(P<.05)。添 加合成離胺酸會加深第7天時之腺窩深度(P<.05),但在第14天時反而有縮短之趨勢(P< .10)。各消化道重量比隨離乳後天數之增加而提高,以電子顯微鏡觀察,證明離乳時空腸 具有完整且長之絨毛和微絨毛,離乳後第7天絨毛快速萎縮,並於第14天時復原,但仍未達 到離乳前之水準。綜合以上結果顯示,離乳後之蛋白質型態會影響仔豬之消化道重量,而添 加合成離胺酸可提高仔豬之生長性能和改變腸道絨毛之發育。 |
英文摘要 | Forty-four crossbred pigs (avg. initial wt 6.28kg) were weaned at 4 wk of age. A 2x2 factorial arrangement of postweaning diets was used to investigate growth performance, digestive tract weights, and jejunal morphological measurements at day 7 and 14 postweaning. Four dietary treatments were to evaluate the effects of complex or simple protein type with or without lysine. Results indicated that there are no interactive effects between protein type and lysine source for performance and intestinal structure. Dietary protein type did not significantly affect growth performance for either period. Daily gain during day 0-7 postweaning was significantly (P< .05) higher for pigs fed with lysine than those fed without lysine. Pigs fed simple diet had singificantly (P< .05) heavier large intestine at day 14 postweaning than pigs fed complex diet. Crypt depth at day 7 postweaning was significantly (P< .05) deeper and at day 14 postweaning tended to be shorter (P< .10) for groups fed added lysine. The weight of digestive tracts increased subsequently after weaning. Scanning electron microscopy and transmission electron microscopy demonstrated long, uniform villi and microvilli on the jejunal at weaning, with markedly reduced length on day 7 postweaning. Villus height increased subsequently by day 14 postweaning, but did not recover to the height at weaning. The data indicate that dietary protein type appeared to be an important factor affecting digestive tract development of newly-weaned pigs. Dietary lysine supplementation resulted in increased growth and changes in the development of jejunal villus. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。