浙江大学学报（农业与生命科学版）
浙江大學學報（農業與生命科學版）
절강대학학보（농업여생명과학판）
JOURNAL OF ZHEJIANG UNIVERSITY(AGRICULTURE & LIFE SCIENCES)
2009年
4期
444-449
,共6页
β-葡聚糖和木聚糖复合酶%断奶仔猪%大麦%IGF-I%表达
β-葡聚糖和木聚糖複閤酶%斷奶仔豬%大麥%IGF-I%錶達
β-포취당화목취당복합매%단내자저%대맥%IGF-I%표체
β-glucanase and xylanase compounds%weaned piglets%barley%IGF-I%expression
选择36头"杜长大"三元杂交断奶仔猪,按饲养试验要求分为2组,分别饲喂不含和含有0.15%β-葡聚糖、木聚糖复合酶(GXC)的大麦型饲粮,进行为期28 d的饲养试验,研究大麦型饲粮中添加β-葡聚糖、木聚糖复合酶对其血清IGF-I水平和肝脏IGF-I mRNA表达的影响.结果表明,添加复合酶组日增重提高13.99%(P＜0.05),料重比降低6.32%(P＜0.05),日采食量虽有升高趋势,但差异不显著(P＞0.05);添加β-葡聚糖、木聚糖复合酶显著增加断奶仔猪血清IGF-I水平和肝脏IGF-I mRNA丰度,比对照组分别提高43.91% (P＜0.01)和33.43% (P＜0.01).结果提示,添加β-葡聚糖、木聚糖复合酶不仅能够改善断奶仔猪对大麦型饲粮的利用效率,而且还影响血清IGF-I水平和肝脏IGF-I mRNA表达,从而提高仔猪对饲料的转化效率,促进其生长.
選擇36頭"杜長大"三元雜交斷奶仔豬,按飼養試驗要求分為2組,分彆飼餵不含和含有0.15%β-葡聚糖、木聚糖複閤酶(GXC)的大麥型飼糧,進行為期28 d的飼養試驗,研究大麥型飼糧中添加β-葡聚糖、木聚糖複閤酶對其血清IGF-I水平和肝髒IGF-I mRNA錶達的影響.結果錶明,添加複閤酶組日增重提高13.99%(P＜0.05),料重比降低6.32%(P＜0.05),日採食量雖有升高趨勢,但差異不顯著(P＞0.05);添加β-葡聚糖、木聚糖複閤酶顯著增加斷奶仔豬血清IGF-I水平和肝髒IGF-I mRNA豐度,比對照組分彆提高43.91% (P＜0.01)和33.43% (P＜0.01).結果提示,添加β-葡聚糖、木聚糖複閤酶不僅能夠改善斷奶仔豬對大麥型飼糧的利用效率,而且還影響血清IGF-I水平和肝髒IGF-I mRNA錶達,從而提高仔豬對飼料的轉化效率,促進其生長.
선택36두"두장대"삼원잡교단내자저,안사양시험요구분위2조,분별사위불함화함유0.15%β-포취당、목취당복합매(GXC)적대맥형사량,진행위기28 d적사양시험,연구대맥형사량중첨가β-포취당、목취당복합매대기혈청IGF-I수평화간장IGF-I mRNA표체적영향.결과표명,첨가복합매조일증중제고13.99%(P＜0.05),료중비강저6.32%(P＜0.05),일채식량수유승고추세,단차이불현저(P＞0.05);첨가β-포취당、목취당복합매현저증가단내자저혈청IGF-I수평화간장IGF-I mRNA봉도,비대조조분별제고43.91% (P＜0.01)화33.43% (P＜0.01).결과제시,첨가β-포취당、목취당복합매불부능구개선단내자저대대맥형사량적이용효솔,이차환영향혈청IGF-I수평화간장IGF-I mRNA표체,종이제고자저대사료적전화효솔,촉진기생장.
To investigate the effects of β-glucanase and xylanase compounds (GXC) supplementation on serum insulin-like growth factor I (IGF-I) levels and hepatic IGF-I mRNA expression in weaned piglets fed a barley-based diet, thirty-six crossbred (Duroc×Landrace×Yorkshire) weaned piglets were randomly assigned to two groups with three replicates based on sex and mass. Each group was fed on the diet based on barley with or without addition of 0.15% GXC for a 28-d period. The results show that supplementation with GXC enhanced average daily gain (ADG) by 13.99% (P＜0.05), decreased feed to gain ratio by 6.32% (P＜0.05),but unaffected average daily feed intake (ADFI). In comparison with control, GXC addition increased serum IGF-I levels by 43.91% (P＜0.01) and upregulated hepatic IGF-I mRNA expression by 33.43% (P＜0.01). In conclusion, GXC supplementation not only could improve the utilization of barley-based feed in piglets, but also could upregulate hepatic IGF-I mRNA expression and serum IGF-I levels, which in turn promotes the growth of piglets.
