| 摘要: |
| [目的]研究复合酶对粉状及颗粒状次粉-杂粕-植酸酶型日粮能量及养分利用率的影响,为复合酶在肉鸡饲料中的合理应用提供依据.[方法]选择健康、体质量1.8～2.0 kg的黄羽公鸡20只,随机分成4组,每组5只,一组为内源组,其余3组分别强饲次粉-杂粕-植酸酶型基础日粮的粉料(对照组)、基础日粮+0.25 kg/t复合酶的粉料和基础日粮+0.25 kg/t复合酶的颗粒料.收集强饲后36 h内的排泄物,测定有机物(OM)、Ca、P、粗蛋白(CP)和氨基酸利用率以及代谢能.[结果](1)日粮中添加复合酶可显著提高黄羽公鸡对OM、Ca、P、CP、总氨基酸的表观利用率和真利用率、表观代谢能(AME)和真代谢能(TME);(2)与粉料相比,颗粒料使黄羽公鸡对OM、Ca、P、CP的表观利用率和真利用率及AME和TME进一步提高(P<0.05或0.01),对总氨基酸表观利用率和真利用率有提高趋势,但差异不显著(P0.05).[结论]添加复合酶和制粒可显著提高肉鸡对次粉-杂粕-植酸酶型日粮能量及主要养分的利用率. |
| 关键词: 次粉-杂粕型日粮 复合酶 制粒 养分利用率 黄羽公鸡 |
| DOI： |
| 分类号:S816.79 |
| 基金项目:河南省杰出科研人才创新工程项目? |
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| Studies on utilization of main nutritients for meat chickens adding compound enzymes and pelleting |
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LIU Qing-hua,NIE Fu-rong,LI Meng-yun,LI Yan-hong,LIU Qing-hua,NIE Fu-rong,LI Meng-yun,LI Yan-hong,LIU Qing-hua,NIE Fu-rong,LI Meng-yun,LI Yan-hong
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| Abstract: |
| 【Objetive】 This research studied the effects of compound enzymes and pelleting in the wheat middling and reddog-miscellaneous meal-phytase diet on energy and utilization of nutritients for yellow cocks with a view to get a proof of the rational application of compound enzymes in the feed.【Method】 20 cocks of 1.8-2.0 kg were divided into 4 groups.There were 5 cocks in each group,one group was endogenous,the remaining three groups were fed the basic diet Powdery (the control group),the basic diet +0.25 kg/t of the compound enzymes powdery and basic diet +0.25 kg/t of the compound enzymes pellet.The utilization of organic matter,Ca,P,CP,amino acid and metabolizable energy were determined.【Result】 (1)Compound enzymes used in the diet increased the apprent/true utilization of OM,Ca,P,CP,TAA and AME,TME(P＜0.05 or 0.01) significantly;(2)Compared with the powder,pellet increased significantly the apparent/true utilization of OM,Ca,P,CP,AME,TME(P＜0.05 or 0.01) for yellow cocks，and had a trend of increasing the apparent and true utilization of the total amino acid,but no significant difference(P＞0.05).【Conclusion】 Compound enzyme and pelleting can increase the utilization of main nutrients in the broiler's wheat middling and reddog-miscellaneous meal-phytase diet significantly. |
| Key words: wheat middling and reddog-miscellaneous meal diet compound enzyme pelleting utilization of nutritient yellow cock |
