【摘要】：本試驗(yàn)旨在研究飼糧添加不同水平酵母硒對(duì)愛拔益加(AA)肉仔雞生長(zhǎng)性能、血液血紅蛋白含量和紅細(xì)胞壓積、血漿生化指標(biāo)、器官指數(shù)和組織結(jié)構(gòu)變化的影響,進(jìn)而評(píng)價(jià)酵母硒對(duì)肉仔雞的生物安全性。試驗(yàn)采用單因子完全隨機(jī)設(shè)計(jì),選用288只1日齡AA肉仔雞,隨機(jī)分為4個(gè)組,每個(gè)組6個(gè)重復(fù),每個(gè)重復(fù)12只雞(公母各占1/2)。各組分別在玉米-豆粕型基礎(chǔ)飼糧中添加0、0.4、2.4和4.9 mg/kg(以硒計(jì))的酵母硒試驗(yàn)。試驗(yàn)期為42 d。結(jié)果表明:1)與對(duì)照組相比,飼糧添加0.4和2.4 mg/kg酵母硒顯著提高了22~42日齡肉仔雞平均日采食量(P0.05);飼糧添加0.4、2.4和4.9 mg/kg酵母硒顯著提高了1~42日齡肉仔雞平均日增重(P0.05),而各酵母硒添加組之間差異不顯著(P0.05)。2)飼糧添加不同水平酵母硒除對(duì)21日齡肉仔雞血漿尿素氮含量和谷胱甘肽過氧化物酶(GSH-Px)活性以及42日齡肉仔雞血漿GSH-Px活性有顯著影響(P0.05)外,對(duì)其他血漿生化指標(biāo)均無顯著影響(P0.05)。與對(duì)照組相比,各酵母硒添加組21和42日齡肉仔雞血漿GSH-Px活性隨著酵母硒添加水平的增加均顯著提高(P0.05),且飼糧添加2.4 mg/kg酵母硒顯著降低了21日齡肉仔雞血漿尿素氮含量(P0.05)。3)飼糧添加不同水平酵母硒對(duì)21和42日齡肉仔雞血液血紅蛋白含量和紅細(xì)胞壓積及42日齡肉仔雞器官指數(shù)均無顯著影響(P0.05),且并未引起主要器官的組織結(jié)構(gòu)變化。綜上所述,肉仔雞飼糧中酵母硒的添加水平為0.4 mg/kg(飼糧中總硒含量為0.41 mg/kg)時(shí),具有10倍的安全系數(shù),即飼糧中以酵母硒形式添加硒對(duì)肉仔雞是安全的。
[Abstract]:The purpose of this study was to study the effects of different dietary levels of yeast selenium on growth performance, hemoglobin content and hematocrit, plasma biochemical index, organ index and tissue structure of Ebor plus (AA) broilers. Then the biological safety of yeast selenium to broilers was evaluated. A single factor complete randomized design was used. 288 1-day-old AA broilers were randomly divided into 4 groups with 6 replicates in each group and 12 chickens per replica (male and female, 1 / 2 each). The experiment of yeast selenium in each group was carried out by adding 0 ~ 0.4g ~ (2.4) and 4.9 mg/kg (in selenium) respectively into corn-soybean basal diet. The experimental period is 42 days. The results showed that: 1) compared with the control group, dietary supplementation of 0.4 and 2.4 mg/kg yeast selenium significantly increased the average daily intake of 22 ~ 42-day-old broilers (P0.05); Dietary supplementation with yeast selenium of 0.4 and 4.9 mg/kg significantly increased the average daily gain of 1-42-day-old broilers (P0.05). However, there was no significant difference among the yeast selenium supplementation groups (P0.05). 2) the dietary supplementation of different levels of yeast selenium had no effect on plasma urea nitrogen content and glutathione peroxidase (GSH-Px) activity and 42 days in 21-day-old broilers. The plasma GSH-Px activity of broilers was significantly affected (P0.05). There was no significant effect on other plasma biochemical indexes (P0.05). Compared with the control group, the plasma GSH-Px activity of 21 and 42 day-old broilers increased significantly with the increase of yeast selenium (P0.05). Addition of 2. 4 mg/kg yeast selenium to diet significantly decreased plasma urea nitrogen content in 21-day-old broilers (P0.05). 3. Dietary supplementation of different levels of yeast selenium on hemoglobin and red blood of 21-day-old broilers and 42-day-old broilers Cell compaction and organ index of 42-day-old broilers were not significantly affected (P0.05). And did not cause the main organ tissue structure change. To sum up, the addition level of yeast selenium to broiler diet was 0. 4 mg/kg (total selenium content in diet was 0. 41 mg/kg), the safety factor was 10 times, that is to say, it was safe for broilers to add selenium in the form of yeast selenium in diet.
【作者單位】： 甘肅農(nóng)業(yè)大學(xué)動(dòng)物科學(xué)技術(shù)學(xué)院;中國農(nóng)業(yè)科學(xué)院北京畜牧獸醫(yī)研究所礦物元素營(yíng)養(yǎng)研究室;
【基金】：農(nóng)產(chǎn)品質(zhì)量安全監(jiān)管(飼料質(zhì)量安全監(jiān)管)項(xiàng)目 國家現(xiàn)代農(nóng)業(yè)產(chǎn)業(yè)技術(shù)體系崗位專家專項(xiàng)經(jīng)費(fèi)(CARS-42) 中國農(nóng)業(yè)科學(xué)院科技創(chuàng)新工程專項(xiàng)經(jīng)費(fèi)(ASTIP-IAS08)
【分類號(hào)】：S831.5

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 郭云霞;黃仁錄;;日糧中添加酵母硒對(duì)柴雞機(jī)體組織中硒沉積的影響[J];今日畜牧獸醫(yī);2006年02期

2 郭云霞;郝慶紅;黃仁錄;李佳;;日糧中添加酵母硒對(duì)柴雞抗氧化能力的影響[J];畜牧與獸醫(yī);2007年11期

3 王學(xué)東;戴晉軍;李彪;;酵母硒的特點(diǎn)及其在養(yǎng)豬中的應(yīng)用[J];養(yǎng)豬;2009年05期

4 王學(xué)東;李彪;桂志遠(yuǎn);;酵母硒復(fù)合酶增強(qiáng)劑對(duì)小白鼠的應(yīng)用研究[J];飼料研究;2010年04期

5 張敏;屈歡;咼于明;;酵母硒對(duì)肉仔雞生長(zhǎng)及抗熱應(yīng)激能力的影響[J];飼料研究;2010年07期

6 雒國彬;趙洪波;文奇男;王志博;張永根;;酵母硒對(duì)圍產(chǎn)前期奶牛全血硒含量和血液抗氧化能力的影響[J];中國飼料;2010年16期

7 張影;單安山;尹佳佳;;酵母硒在動(dòng)物生產(chǎn)中的研究與應(yīng)用[J];中國畜牧獸醫(yī);2011年07期

8 駱先虎;張雷;;酵母硒在肉鴨中的應(yīng)用[J];飼料研究;2011年10期

9 宋云鵬;劉鳳菊;戴晉軍;;硒的生物學(xué)特性及酵母硒在種雞中的應(yīng)用[J];飼料研究;2011年12期

10 姚曉磊;杜亞麗;孫皓然;劉雪雪;石磊;;酵母硒在動(dòng)物生產(chǎn)中的應(yīng)用[J];當(dāng)代畜牧;2012年07期

相關(guān)會(huì)議論文 前8條

1 何柳青;曲湘勇;魏艷紅;汪加明;常春茹;;茶多酚和酵母硒對(duì)綠殼雞蛋膽固醇、硒含量及抗氧化性能的影響[A];生態(tài)環(huán)境與畜牧業(yè)可持續(xù)發(fā)展學(xué)術(shù)研討會(huì)暨中國畜牧獸醫(yī)學(xué)會(huì)2012年學(xué)術(shù)年會(huì)和第七屆全國畜牧獸醫(yī)青年科技工作者學(xué)術(shù)研討會(huì)會(huì)議論文集——T06飼料衛(wèi)生與安全專題[C];2012年

2 井婧;李紹鈺;魏鳳仙;徐彬;焦玉萍;孫全友;王琳q，

本文編號(hào)：2318859