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| 新型复合氨基酸络合铁对肉鸡生产性能、血液指标和组织铁含量的影响 |
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傅鑫森1,韩苗苗1,董元洋1,苗志强1,张俊珍1,杨玉1,李慧锋1,冯焱1,魏清宇1,张炳坤2,冀飞3,李建慧1*
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| (1.山西农业大学 动物科学学院, 山西 太谷 030801;2.中国农业大学 动物科技学院/动物营养学国家重点实验室, 北京 100193;3.美国金宝公司 10400Viking Drive, Suite 200/240 美国 Eden Prairie, MN 55344) |
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| 摘要: |
| 为探究肉鸡日粮中添加以两种氨基酸螯合成的新型复合氨基酸络合铁添加剂对肉鸡生长性能、器官指数、血液指标、组织抗氧化性能和铁含量的影响，选用960只1日龄爱拔益加(AA)肉鸡公雏，随机分为6个处理，每个处理8个重复，每个重复20只雏鸡。试验处理组分别在玉米-豆粕基础日粮中添加0、20、40、80及120 mg/kg的新型复合氨基酸络合铁(ZprFe)和80 mg/kg硫酸亚铁(FeSO4)。结果表明:1)肉鸡日粮中添加ZprFe对肉鸡平均日采食量、平均日增重、料重比均无显著差异(P>0.05)。2)日粮中添加ZprFe显著提高了肉鸡42日龄肝脏和脾脏指数(P<0.05)，且随着日粮中铁水平的添加呈线性和二次增加(P<0.05)。3)添加ZprFe显著提高21日龄和42日龄血清铁含量(P<0.05)；显著降低21日龄血清总铁结合力(P<0.05)，但对42日龄血清总铁结合力无显著影响(P>0.05)。添加ZprFe显著提高21日龄血清含锰超氧化物歧化酶(Mn-SOD)活性和42日龄血清含铜与锌超氧化物歧化酶CuZn-SOD活性(P<0.05)。4)添加ZprFe对肝脏总超氧化物歧化酶(T-SOD)和总抗氧化能力(T-AOC)无显著影响(P>0.05)，但可显著提高胸肌T-SOD活性和T-AOC能力(P<0.05)。添加ZprFe对肝脏铁含量影响显著，随着日粮中铁水平含量的增高，肝脏铁含量呈显著线性增加(P<0.05)。综上，日粮中添加新型复合氨基酸络合铁ZprFe有利于肉鸡器官生长发育，提高肉鸡抗氧化性能和组织铁沉积，推荐在本研究条件下AA肉鸡日粮中添加ZprFe的适宜添加范围为40~80 mg/kg，为实际生产提供理论依据。 |
| 关键词: 肉鸡 复合氨基酸络合铁 铁沉积 抗氧化能力 适宜添加量 |
| DOI：10.11841/j.issn.1007-4333.2021.10.13 |
| 投稿时间：2020-11-12 |
| 基金项目:山西省教育厅高校科技创新项目(2019L0359)；山西农业大学青年拔尖创新人才项目(BJRC201603)；“1331工程”重点学科建设专项；山西省应用基础研究计划(201901D211372) |
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| Effect of new complex amino acid chelated iron on broiler performance, blood index and tissue iron content |
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FU Xinsen1,HAN Miaomiao1,DONG Yuanyang1,MIAO Zhiqiang1,ZHANG Junzhen1,YANG Yu1,LI Huifeng1,FENG Yan1,WEI Qingyu1,ZHANG Bingkun2,JI Fei3,LI Jianhui1*
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| (1.College of Animal Science, Shanxi Agricultural University, Taigu 030801, China;2.College of Animal Science and Technology/State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China;3.Zinpro Corporation 10400 Viking Drive, Suite 200/240 Eden Prairie, MN 55344) |
| Abstract: |
| In order to explore the effects of a new type of amino acid complex iron additive chelated by two amino acids in broiler diets on broiler growth performance, organ index, blood index, tissue antioxidant performance and iron content, 960 1-day-old AA broiler male chicks were selected and randomly divided into 6 treatments with 8 replicates for each treatment and 20 chicks for each replicate. In the experimental treatment group, 0, 20, 40, 80 and 120 mg/kg Fe of new complex amino acid complex iron(ZprFe)and 80 mg/kg Fe of ferrous sulfate(FeSO4)were added to the corn-soybean meal basal diet, respectively. The results showed that: 1)The addition of ZprFe in the broiler diet had no significant difference in the average daily feed intake, average daily gain, and feed-to-weight ratio of broilers(P>0. 05). 2)The addition of ZprFe to the diet significantly increased the liver and spleen indexes of 42-day-old broilers(P<0. 05), and increased linearly and quadratically with the addition of dietary iron(P<0. 05). 3)The addition of ZprFe significantly increased the serum iron content of 21-day and 42-day-old(P<0. 05); significantly reduced the 21-day-old serum total iron binding capacity(P<0. 05), but had no significant effect on the 42-day-old serum total iron binding capacity Influence(P>0. 05). The addition of ZprFe significantly increased the activity of 21-day-old serum manganese superoxide dismutase(Mn-SOD)and 42-day-old serum copper and zinc superoxide dismutase CuZn-SOD activity(P<0. 05). 4)The addition of ZprFe had no significant effect on the total superoxide dismutase(T-SOD)and total antioxidant capacity(T-AOC)of the liver(P>0. 05), but it can significantly increase the T-SOD activity and T-AOC capacity of chest muscles(P<0. 05). The addition of ZprFe had a significant effect on liver iron content. With the increase of dietary iron content, liver iron content increased significantly(P<0. 05). In summary, adding new complex amino acid complex iron ZprFe in the diet is beneficial to the growth and development of broiler's organs, and could improve the antioxidant performance and tissue iron deposition of broilers. The appropriate addition range of ZprFe 40-80 mg in the AA broiler diet under the experimental conditions is recommended/kg Fe. This study provides a theoretical basis for the actual production. |
| Key words: broiler amino acid chelated iron Iron deposition anti-oxidation ability suitable addition amount |
