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熱應(yīng)激對(duì)黃羽肉雞心臟UQCRB基因表達(dá)的影響研究

2019-09-19 08:01張權(quán)張柏海楊志聰黃琳琳黎欣欣吳芷茵
安徽農(nóng)業(yè)科學(xué) 2019年16期
關(guān)鍵詞:熱應(yīng)激基因表達(dá)心臟

張權(quán) 張柏海 楊志聰 黃琳琳 黎欣欣 吳芷茵

摘要?[目的]研究熱應(yīng)激對(duì)黃羽肉雞生長(zhǎng)性能的影響。[方法]對(duì)新廣黃公雞和懷鄉(xiāng)公雞進(jìn)行熱應(yīng)激處理,應(yīng)用熒光定量PCR法檢測(cè)UQCRB基因在新廣黃公雞和懷鄉(xiāng)公雞心臟組織中的表達(dá)水平,分析其對(duì)黃羽肉雞體重、心臟相對(duì)重和心臟UQCRB基因相對(duì)表達(dá)量的影響。[結(jié)果]新廣黃公雞和懷鄉(xiāng)公雞21、28?d體重以及28?d心臟絕對(duì)重顯著高于懷鄉(xiāng)公雞(P<0.05),2種公雞心臟相對(duì)重差異不顯著。28?d試驗(yàn)組新廣黃公雞的體重顯著低于對(duì)照組(P<0.05)。新廣黃公雞21?d心臟UQCRB基因的相對(duì)表達(dá)量顯著高于懷鄉(xiāng)公雞(P<0.05)。熱應(yīng)激顯著降低了新廣黃公雞28?d心臟UQCRB基因的相對(duì)表達(dá)量(P<0.05)。[結(jié)論]心臟UQCRB基因表達(dá)與黃羽肉雞生長(zhǎng)速度相關(guān),在肉雞其他組織器官的表達(dá)有待進(jìn)一步研究。

關(guān)鍵詞?黃羽肉雞;熱應(yīng)激;心臟;UQCRB;基因表達(dá)

中圖分類號(hào)?S813文獻(xiàn)標(biāo)識(shí)碼?A

文章編號(hào)?0517-6611(2019)16-0102-02

doi:10.3969/j.issn.0517-6611.2019.16.029

開放科學(xué)(資源服務(wù))標(biāo)識(shí)碼(OSID):

Study?on?the?Effects?of?Heat?Stress?on?the?Expression?of?UQCRB?Gene?in?Heart?of?Yellow?feather?Broilers

ZHANG?Quan,ZHANG?Bo?hai,YANG?Zhi?cong?et?al?(Agricultural?College,Guangdong?Ocean?University,Zhanjiang,Guangdong?524088)

Abstract?[Objective]To?study?the?effects?of?heat?stress?on?the?growth?performance?of?yellow?feather?broilers.[Method]?The?heat?stress?treatment?were?conducted?on?Xinguanghuang?cock?and?Huaixiang?cock.Fluorescence?quantitative?PCR?was?used?to?analyze?the?expression?level?of?UQCRB?gene?in?the?heart?tissues?of?Xinguanghuang?cock?and?Huaixiang?cock.The?effects?of?heat?stress?treatment?on?the?body?weight,the?relative?weight?of?heart?and?the?relative?expression?of?UQCRB?gene?in?the?heart?of?yellow?feather?broilers?were?analyzed.[Result]The?body?weight?on?the?21st,28th?day,and?heart?weight?on?the?28th?day?of?Xinguanghuang?cock?were?significantly?higher?than?those?of?Huaixiang?cock?(P

3?討論與結(jié)論

熱應(yīng)激使家禽生理機(jī)能紊亂,表現(xiàn)為體重降低、生長(zhǎng)緩慢,是影響家禽生長(zhǎng)性能的主要因素之一[10]。研究表明,持續(xù)熱應(yīng)激顯著降低了黃羽肉雞的生產(chǎn)性能,隨著環(huán)境溫度的升高,日增重顯著下降[11]。耐熱型品系A(chǔ)IL雞[12]暴露在熱環(huán)境下,7?d的體重增重率為58.9%[13]。在熱應(yīng)激下,家禽生長(zhǎng)性能的降低與機(jī)體組織器官的各種變化有關(guān),這些器官變化包括腸道受損、相關(guān)免疫器官和心臟的相對(duì)重減輕[14]。該研究發(fā)現(xiàn),新廣黃公雞在7?d熱應(yīng)激條件下,體重增長(zhǎng)約60%,對(duì)心臟相對(duì)重的影響不顯著,表明在高溫環(huán)境下新廣黃公雞具有一定的抗熱應(yīng)激能力,心臟生理發(fā)育正常[15]。

UQCRB是線粒體呼吸鏈復(fù)合體Ⅲ的亞單元,是線粒體能量代謝相關(guān)基因。氧化磷酸化電子傳遞鏈的功能異常會(huì)導(dǎo)致線粒體呼吸鏈功能障礙,UQCRB基因在誘導(dǎo)血管生成和線粒體介導(dǎo)的代謝紊亂中發(fā)揮著關(guān)鍵作用[8-9]。該研究中心臟UQCRB基因的相對(duì)表達(dá)量與黃羽肉雞的生長(zhǎng)速度呈正相關(guān),且相關(guān)性達(dá)到顯著水平。中快速型黃羽肉雞心臟UQCRB基因的相對(duì)表達(dá)量因受熱環(huán)境的影響而顯著下降,從而導(dǎo)致生長(zhǎng)速度減慢;慢速型黃羽肉雞心臟UQCRB基因的相對(duì)表達(dá)量受熱應(yīng)激的影響,但其生長(zhǎng)速度差異不顯著。

熱應(yīng)激顯著降低了新廣黃公雞28?d體重及心臟UQCRB基因的相對(duì)表達(dá)量,但其對(duì)懷興公雞無顯著影響。這表明心臟中UQCRB基因的相對(duì)表達(dá)量與黃羽肉雞的生長(zhǎng)速度有關(guān),而其在黃羽肉雞其他組織器官中的表達(dá)則有待進(jìn)一步?研究。

參考文獻(xiàn)

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[3]?LIMONGELLI?G,TOME?ESTEBAN?M,DEJTHEVAPORN?C,et?al.Prevalence?and?natural?history?of?heart?disease?in?adults?with?primary?mitochondrial?respiratory?chain?disease[J].Eur?J?Heart?Fail,2010,12(2):114-121.

[4]?FINSTERER?J,KOTHARI?S.Cardiac?manifestations?of?primary?mitochondrial?disorders[J].Int?J?Cardiol,2014,177(3):754-763.

[5]?OLKOWSKI?A?A.Pathophysiology?of?heart?failure?in?broiler?chickens:Structural,biochemical,and?molecular?characteristics[J].Poultry?science,2007,86(5):999-1005.

[6]?BAGHBANZADEH?A,DECUYPERE?E.Ascites?syndrome?in?broilers:Physiological?and?nutritional?perspectives[J].Avian?pathology,2008,37(2):?117-126.

[7]?JUNG?H?J,SHIM?J?S,LEE?J?Y,et?al.Terpestacin?inhibits?tumor?angiogenesis?by?targeting?UQCRB?of?mitochondrial?complex?III?and?suppressing?hypoxia?induced?reactive?oxygen?species?production?and?cellular?oxygen?sensing[J].Journal?of?biological?chemistry,2010,285(15):11584-11595.

[8]?JUNG?H?J,KIM?K?H,KIM?N?D,et?al.Identification?of?a?novel?small?molecule?targeting?UQCRB?of?mitochondrial?complex?III?and?its?anti?angiogenic?activity[J].Bioorg?Med?Chem?Lett,2011,21(3):1052-1056.

[9]?CHANG?J,JUNG?H?J,PARK?H?J,et?al.Cell?permeable?mitochondrial?ubiquinol?cytochrome?c?reductase?binding?protein?induces?angiogenesis?in?vitro?and?in?vivo[J].Cancer?Lett,2015,366(1):52-60.

[10]?鐘光,邵丹,施壽榮,等.循環(huán)熱應(yīng)激對(duì)黃羽肉雞呼吸機(jī)能、生長(zhǎng)性能和肝臟抗氧化功能的影響[J].動(dòng)物營(yíng)養(yǎng)學(xué)報(bào),2018,30(3):?947-952.

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