本文選題：硬脂酰酶A去飽和酶 + 梧桐子油��； 參考：《動(dòng)物營養(yǎng)學(xué)報(bào)》2017年12期

【摘要】：本試驗(yàn)旨在研究飼糧中添加硬脂酰輔酶A去飽和酶(SCD)的抑制劑(梧桐子油)和促進(jìn)劑(羅格列酮)對育肥綿羊生產(chǎn)性能以及與脂肪代謝相關(guān)血清激素和生化指標(biāo)的影響。選用18只平均體重為(27.71±2.64)kg、體況相似的雜交公羊(美利奴羊×小尾寒羊♀),隨機(jī)分為3組,每組6只。對照組(C組)飼喂基礎(chǔ)飼糧+4.8%胡麻籽,梧桐子油組(W組)飼喂C組飼糧+15 g/d梧桐子油,羅格列酮組(L組)飼喂C組飼糧+8 mg/d羅格列酮。試驗(yàn)期50 d,其中過渡期10 d,預(yù)試期5 d,正試期35 d。結(jié)果表明:1)生產(chǎn)性能方面,飼糧中添加梧桐子油和羅格列酮對綿羊生產(chǎn)性能、屠宰性能和產(chǎn)肉性能均無顯著影響(P0.05);脂肪沉積方面,W組的背膘厚比C組和L組分別提高了12.55%和17.23%(P0.05)。2)血清激素指標(biāo)方面,與C組相比,W組血清生長激素(GH)、胰高血糖素(GC)和瘦素(LEP)含量均顯著升高(P0.05),L組血清GC含量顯著升高(P0.05);3)血清生化指標(biāo)方面,與C組相比,W組血清高密度脂蛋白膽固醇(HDL-C)、低密度脂蛋白膽固醇(LDL-C)、總膽固醇(TC)和甘油三酯(TG)的含量均顯著升高(P0.05),L組血清TG的含量顯著高于C組(P0.05)。綜上所述,飼糧中添加梧桐子油和羅格列酮對綿羊生產(chǎn)性能、屠宰性能和產(chǎn)肉性能等均無顯著影響,但梧桐子油顯著提高了綿羊的背膘厚度;飼糧中添加梧桐子油可以顯著提高綿羊血清GH、GC和LEP含量,羅格列酮可以顯著提高血清GC含量;飼糧中添加梧桐子油能顯著提高綿羊血清HDL-C、LDL-C、TC和TG的含量,羅格列酮可顯著提高血清TG的含量。
[Abstract]:The purpose of this experiment was to study the effects of the inhibitors of stearyl coenzyme A desaturase (SCD) and rosiglitazone on the performance of fattening sheep, serum hormones and biochemical indexes related to fat metabolism. Eighteen crossbred male sheep (Merino sheep 脳 small tail Han sheep) with an average body weight of 27.71 鹵2.64 kg were randomly divided into 3 groups, 6 in each group. The control group (group C) was fed basic diet of 4.8% flax seed, the group of Wutong seed oil (group W) was fed with the diet of group C (15 g / d) and the group of rosiglitazone (group L) was fed with rosiglitazone for 8 mg/d. The experiment period was 50 days, including 10 days transition period, 5 days pretest period and 35 days trial period. The results showed that the production performance of sheep was affected by adding Wutong seed oil and rosiglitazone into diet. Butcher performance and meat yield performance had no significant effect on P0.05, and fat deposition in W group was 12.55% and 17.23% higher than that of C group and L group, respectively. Compared with group C, the serum levels of growth hormone (GH), glucagon (GCC) and leptin (leptin) in group C were significantly higher than those in group C. The serum GC content in group C was significantly higher than that in group C (P 0.05). Compared with group C, the contents of HDL-CU, LDL-CU, TC- and TGG in group C were significantly higher than those in group C (P 0.05) and the content of TG in group C was significantly higher than that in group C (P 0.05). To sum up, the addition of Wutong seed oil and rosiglitazone into the diet had no significant effect on the performance, slaughter performance and meat yield of sheep, but Wutong seed oil significantly increased the backfat thickness of sheep. The contents of GC and LEP in serum of sheep were significantly increased by adding Wutong seed oil, the contents of GC and TG in serum were significantly increased by rosiglitazone, and the contents of LDL-CTC and TG in sheep serum were significantly increased by adding Wutong seed oil in diet. Rosiglitazone could significantly increase the level of serum TG.
【作者單位】： 內(nèi)蒙古農(nóng)業(yè)大學(xué)動(dòng)物科學(xué)學(xué)院;內(nèi)蒙古醫(yī)科大學(xué)基礎(chǔ)教研部;
【基金】：國家自然科學(xué)基金項(xiàng)目(31360560) 國家科技支撐計(jì)劃課題(2015BAD29B06)
【分類號】：S826.5

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