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題 名 | 日糧油脂含量對臺灣土雞肝臟脂質合成相關酵素活性之影響 |
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作 者 | 陳運雄; | 書刊名 | 嘉義農專學報 |
卷 期 | 28 1992.02[民81.02] |
頁 次 | 頁133-149 |
分類號 | 437.714 |
關鍵詞 | 臺灣土雞; 日糧; 肝臟; 油脂; 脂質; 酵素活性; |
語 文 | 中文(Chinese) |
中文摘要 | 本試驗之目的在於探討日糧油脂含量對臺灣土雞生長性能、腹脂蓄積量 及肝臟脂質合成酵素活性及脂肪蓄積之影響。試驗分四期(1~4、5~8、9~12及13~16 週齡),採3x2複因子設計。試驗各期均含三種日糧:以玉米一大豆粕為主之對照組 (C組)日糧,及於等代謝能、等粗蛋白質含量前題下,以大豆油另行取代對照組 日糧中玉米所提供能量之25.0(A組)及12.0(B組)。生長前期(1~4、5~8週齡)及生長 後期(9~12、13~16週齡)日糧之代謝罷含量分別為31O0及3200Kcal/kg,而四期之日 糧粗蛋白質含量依序為23、20、18及16。 試驗結果顯示,飼予適當油脂含量之對照組(C組)日糧雞隻,其於生長前期具有 較佳之增重及飼料利用效率,但高油脂含量之日糧反而對母土雞之增重有不利之 影響。各日糧處理組中,公土雞之增重及採食量於l~12週齡階段均較母土雞為 高,而於13~16週齡階段之生長性能,於性別間並無差異性。 在肝重與腹脂重方面,4週齡及]6週齡二期餵飼大豆油愈高之母雞其肝重較其他 各組為小(P<0.05)。l~16週齡四期各處理組腹脂重及其佔體重百分比皆以母雞大於 公雞,尤以9~16週齡試驗各處理組公、母雞間皆具顯著差異(P<0.05)。肝臟中ATP- 檸檬酸分解�t(ATP-citrate cleavageenzyme,EC 4.1.3.8;CCE)於8週齡時,母土雞隨 日糧大豆油的增加而顯著減少活性(P<0.05)。於12週齡時,各處理間公及母土雞 肝臟之CCE及母土雞肝臟中NADP-蘋果酸去氫�t(NADP-malic dehydrogenase,EC 1.1.1.40;MDH)活性亦隨大豆油的增高而顯著下降(P<0.05)。16週齡之公土雞肝臟 中CCE及公、母雞肝臟中MDH活性明顯受日糧中所含高量之大豆油所抑制 (P<0.05)。各期試驗中肝臟之脂肪酸合成�t(Fatty acid synthetase;FAS)活性,各處理 間則無顯著差異(P>0.05)。 |
英文摘要 | This experiment was undertaken to investigate the effect of dietary fatlevel on the growth performance, abdominal fat accumulation and the hepaticlipogenic enzymes activities of Taiwan country chicken. The experiment was devided into four stages (weeks of 1-4, 5-8, 9-12 and 13-16) of a 3x2 factorialdesign. There were three experimental diets of each stage: the corn-soybeanmeal control diet (diet C) and diet A and B were replacing 25.0 and 12.0corn calories of diet C with soybean oil, respectively. The metabolic energycontents of the starter (weeks of 1-8) and finisher (weeks of 9-16) diets were3100 and 3200 Kcal/kg and the crude protein contents of each stage were23, 20, 18 and 16, respectively. As the results showed that chickens fed the control diet that contentedoptimal level of fat had better gains and feed conversion in the starter stageand the diets that contented higher fat had negative effect on gains of femalechickens. In all treatments that the gains and feed intakes of male chickenswere greater than females during weeks of 1-12 and the growth performancesof weeks of 13-16 were not significantly different between sexes. At 4 and 16 weeks of age, liver weights of female chickens significantly(P< 0.05) decreased as dietary soybean oil increased. The abdominal fat weights and percentage of body weight of femalechickens were significantly (P< 0.05) higher than male at 9 to 16 weeks of age.Hepatic CCE activities of female chickens at 8 weeks age significantly (P< 0.05)decreased as dietary soybean oil was increased. At the 12 weeks age, hepaticCCE activities of male chickens and female chickens, hepatic MDH activities offemale chickens significantly (P< 0.05) decreased as dietary soybean oil was increased. At the 16 weeks age, hepatic CCE activities of male chickens, andhepatic MDH activities of male and female chickens significantly (P< 0.05) decreased as dietary soybean oil was increased. There were no distinct differences |
本系統中英文摘要資訊取自各篇刊載內容。