摘要:試驗選用蟲草頭孢菌粉、黃芪粉及神曲粉作為原料進行了蛋雞功能性飼料添加劑配方篩選。結果表明,蟲草頭孢菌粉和黃芪粉以質量比1∶1的比例混合后再按1%的比例添加到飼料中,可以顯著提高蛋雞產蛋率及雞蛋品質,并可增強蛋雞機體免疫能力。與對照相比,蛋雞產蛋率提高5.84%、料蛋比下降10.08%;血漿免疫指標IgG含量增加23.25%、NO含量增加17.22%、NOS活性增加13.94%、iNOS活性增加6.24%。
關鍵詞:蛋雞;功能性飼料;添加劑;產蛋率;免疫力
中圖分類號:S816.7 文獻標識碼:A 文章編號:0439-8114(2011)19-4018-03
Selection of Functional Feed Additives for Egg-layers
CHEN Ming-li1,2,WEI Qiang3,CHEN Jin-guo1,2,WANG Jun1,2,YANG De1,2,LIN Ruo-tai1,2,
QIU Jian-hui2,ZENG Han-ting1,2
(1.Agricultural Products Processing Subcenter of Hubei Agricultural Science & Technology Innovation Center,Wuhan 430064,China;2.Institute of Agricultural Products Processing and Nuclear-agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China;
3.Wuhan Kun-hui Science and Technology Development Co., Ltd., Wuhan 430000, China)
Abstract: The functional feed additives composed of three material Cephalosporin sinensis, Astragalus powder and Shenqu powder were screened for egg-layer in this study. The results indicated that with the mixed ratio of 1∶1 and the amount of 1% in feed, the mixture of Cephalosporin sinensis and Astragalus powder could significantly improve the laying rate and egg quality. The layers’ immunity could also be enhanced. Compared with the control group, the laying rate, feed conversion, plasma immune parameters IgG content, NO content, NOS activity and iNOS activity were increased by 5.84%, 10.08%, 23.25%, 17.22%, 13.94% and 6.24%, respectively.
Key words: layers; functional feed additives; laying rate; immunity
隨著世界各國對食品安全問題的高度重視,濫用抗生素飼料添加劑所帶來的負面影響越來越受到全社會的關注[1]。抗生素飼料添加劑的濫用是目前蛋雞養殖行業發展面臨的亟待解決的問題。中草藥是我國特有的中醫藥理論與實踐的產物,其資源豐富,歷史悠久[2]。冬蟲夏草和黃芪等中草藥免疫活性物質能增強機體免疫機能,提高動物抗應激及抵抗疾病的能力,改善動物生產性能[3,4],具有無殘留、不產生耐藥性等優點。利用中草藥開發功能性(增強免疫)飼料添加劑可解決長期困擾畜牧業發展的抗生素殘留問題[1],提高生產率,減少畜牧業對環境的污染,是近年來國內飼料添加劑研究的一大熱點。本研究以蟲草頭孢菌粉、黃芪粉及神曲粉為原料,進行了蛋雞功能性飼料添加劑配方篩選[5-7],現將試驗結果報告如下。
1材料與方法
1.1材料
1.1.1供試雞種羅曼褐商品代蛋雞(來自武漢市新洲區養殖示范基地)。
1.1.2基礎日糧玉米65.0%、麥麩4.0%、大麥4.0%、豆粕16.0%、棉粕3.0%、魚粉4.0%、骨粉1.7%、磷酸氫鈣0.95%、食鹽0.3%、賴氨酸0.01%、蛋氨酸0.04%、預混料1.0%。……