發(fā)布時間：2019-06-10 00:04

【摘要】：本試驗旨在探討蒲公英水提物對肉仔雞生長性能和免疫機能的影響。選擇200只1日齡的愛拔益加(AA)肉仔雞,隨機分為A、B、C、D,4個組,每組5個重復(fù),每個重復(fù)10只雞,A、B、C組分別在基礎(chǔ)飼糧中添加0.5%、0.75%、1%蒲公英水提物,這4個組中空白對照組是D組。我一共用42d來做這個試驗。定期測定每組肉雞的生長快慢和其生產(chǎn)性能、免疫器官功能指標(biāo)和新城疫抗體滴度如何,測定肉仔雞,胴體優(yōu)劣、肉質(zhì)優(yōu)劣。我們研究不一樣的添加劑量的蒲公英水提物對肉仔雞生產(chǎn)性能和免疫機能的影響。測21日齡和42日齡每只肉雞的平均日增重、平均日采食量以及料肉比;在試驗結(jié)束時做肉雞品質(zhì)檢測及肌肉品質(zhì)測定;分別在試驗的第14d、21d、28d、35d,每組選取5只體重相近的健康雞進行采血,取宰殺后試驗雞的胸腺、脾臟、法氏囊,用濾紙吸干血液后稱重,并計算其免疫器官指數(shù)。試驗發(fā)現(xiàn):(1)在日糧中添加0.75%的蒲公英水提物添加組平均每天增長體重比對照組增長體重提高了18.6%(P0.01);C組在每天飼喂過程中日糧添加1%,每天吃的飼料和體重增長的比值比對照組的雞下降了7.8%(P0.05)。(2)各處理組的半凈膛率沒有明顯的差異(P0.05);0.75%、1%添加組的雞的全凈膛率明顯的高于對照組雞的全凈膛率(P0.05)。腿肌率和胸肌率:1%添加組高于對照組(P0.05);各組雞的脂肪率之間基本上差不多,差異不明顯。(3)差異不大的有水分、肉的顏色、肌肉蛋白質(zhì)(P0.05)表現(xiàn)在其他每個處理組雞,其它各組雞(P0.05)的肌間脂肪含量、肌肉嫩程度很明顯的低于0.75%添加組雞,而雞的肌肉pH很明顯的高于0.75%添加組雞。(4)采用中藥成分的添加劑飼養(yǎng)肉仔雞可以很明顯的提高雞的成活率,它的效果顯著比對照組的雞好。其中添加0.75%的蒲公英水提物具有顯著的預(yù)防的作用,達到98%成活率。我們試驗結(jié)果表明:在每天飼喂的飼料中添加0.75%的蒲公英水提物,能夠提高肉仔雞生長性能,對肉雞仔胴體品質(zhì)和肉質(zhì)的改善起到很大的作用,對肉仔雞的防病能力有很大提高。
[Abstract]:The purpose of this study was to investigate the effects of dandelion water extract on growth performance and immune function of broilers. Two hundred 1-day-old Ebayi plus (AA) broilers were randomly divided into 4 groups, 5 replicates in each group, 10 chickens in each group, A, B, C and 0.75% in the basal diet, respectively. 1% dandelion water extract, the blank control group was group D. It took me a total of 42 days to do the experiment. The growth rate and performance of each group of broilers, the functional indexes of immune organs and the titer of Newcastle disease antibody were measured regularly, and the carcass and meat quality of broilers were measured. We studied the effects of dandelion water extract with different additives on performance and immune function of broilers. The average daily gain, average daily feed intake and feed / meat ratio of 21-day-old and 42-day-old broilers were measured, and the quality and muscle quality of broilers were measured at the end of the experiment. On the 14th, 21st, 28th and 35th day of the experiment, 5 healthy chickens of similar weight were selected for blood collection. The thymic gland, spleen and bursa of the tested chickens were collected and weighed with filter paper to dry the blood, and the immune organ index was calculated. The results showed that: (1) the average daily weight gain of the group supplemented with 0.75% dandelion water extract was 18.6% higher than that of the control group (P01); The ratio of daily feed to body weight gain in group C was 7.8% lower than that in control group (P 0.05). (2), and there was no significant difference in semi-evisceration rate among treatment groups (P 0.05), and the ratio of feed to body weight gain in group C was 7.8% lower than that in control group (P 0.05). The total evisceration rate of the chickens in the 1% group was significantly higher than that in the control group (P 0.05), and the total evisceration rate of the chickens in the 1% group was significantly higher than that in the control group (P 0.05). Leg muscle rate and chest muscle rate: 1% addition group was higher than the control group (P 0.05); The fat percentage of each group was basically the same, but the difference was not obvious. (3) there was no significant difference in moisture, meat color and muscle protein (P 0.05) in each other treatment group. The muscle fat content and muscle tenderness of the other groups (P 0.05) were significantly lower than 0.75% of the chickens in the addition group. The muscle pH of chickens was significantly higher than that of 0.75% added group. (4) the survival rate of broilers fed with additives of traditional Chinese medicine could significantly improve the survival rate of broilers, and its effect was significantly better than that of the control group. Among them, 0.75% dandelion water extract had significant preventive effect, reaching 98% survival rate. The results showed that 0.75% dandelion water extract could improve the growth performance of broilers and improve the carcass quality and meat quality of broilers. The disease prevention ability of broilers has been greatly improved.
【學(xué)位授予單位】：吉林農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：S831.5

【參考文獻】

相關(guān)期刊論文 前9條

1 孟志云,徐綏緒,沈建平;蒲公英的研究進展[J];人民軍醫(yī)藥學(xué)專刊;1997年02期

2 李苗云,葛長榮;中草藥添加劑應(yīng)用于畜禽的研究[J];獸藥與飼料添加劑;2003年02期

3 金政,李相伍,金美善,王啟偉,樸麗花;蒲公英對體外培養(yǎng)心肌細胞保護作用的研究[J];中國中醫(yī)藥科技;2001年05期

4 王秋芳,張淼濤,效梅,李永鵬,曹平;中藥對隱性乳房炎奶牛細胞免疫功能的影響[J];畜牧獸醫(yī)學(xué)報;2002年04期

5 孫玉龍;中草藥添加劑“禽益散”對肉雞飼養(yǎng)的效果研究[J];畜禽業(yè);2003年05期

6 祝國強,杜云良,王斌,侯風(fēng)琴;復(fù)方中藥對肉雞生產(chǎn)性能和生化指標(biāo)的影響[J];中國家禽;2004年15期

7 張曉菊,王友明,陶志倫,吳舊生,章紅兵;中藥飼料添加劑對長金豬生長性能和飼料養(yǎng)分消化率的影響[J];中國畜牧雜志;2004年06期

8 趙守訓(xùn),杭秉倩;蒲公英的化學(xué)成分和藥理作用[J];中國野生植物資源;2001年03期

9 馬鳳友;;蒲公英沖劑治療消化性潰瘍[J];中醫(yī)藥學(xué)報;1991年01期

，

本文編號：2496008