静脉注射不同锌源与锌水平对肉仔鸡生长性能及组织锌含量的影响

›› 2011, Vol. 38 ›› Issue (3): 11-15.

静脉注射不同锌源与锌水平对肉仔鸡生长性能及组织锌含量的影响

沈素芳¹，吕林¹，王润莲²，李素芬^1,3，张丽阳¹，罗绪刚¹

(1.中国农业科学院北京畜牧兽医研究所矿物元素营养研究室动物营养学国家重点实验室，北京 100193；2.广东海洋大学农学院，广东湛江 524088；3.河北科技师范学院，河北秦皇岛 066004)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-03-20 发布日期:2011-03-20
通讯作者: 罗绪刚

Effects of Intravenously Injected Zn Source and Level on Growth Performance and Tissue Zn Concentration for Broilers

SHEN Su-fang¹， LV Lin¹，WANG Run-lian²，LI Su-fen^1,3，ZHANG Li-yang¹， LUO Xu-gang¹

(1.Mineral Nutrition Research Division, State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences，Beijing 100193,China; 2.College of Agronomy,Guangdong Ocean University,Zhanjiang 524088,China;3.Hebei Normal University of Science and Technology, Qinhuangdao 066004，China)

Received:1900-01-01 Revised:1900-01-01 Online:2011-03-20 Published:2011-03-20
Contact: LUO Xu-gang

摘要/Abstract

摘要： 用378只22日龄商品代AA肉公鸡进行静脉注射试验，研究不同锌源与锌水平对肉仔鸡生长性能及组织锌含量的影响。采用4种锌源（ZnSO₄·7H₂O、弱络合强度Zn-AA C、中等络合强度Zn-Pro B和偏极强络合强度Zn-Pro A）与3个日粮锌吸收率（0%、6％和12％）静脉注射锌水平构成的4×3两因子安排的完全随机设计，将22日龄肉公鸡按体重随机分成9个组(每组7个重复笼，每个重复笼6只鸡)，分别翅静脉注射生理盐水（对照组），或在生理盐水中溶解硫酸锌及弱、中等和偏极强络合强度有机锌源的注射液12 d。结果表明，锌源显著影响（P<0.10）注射后6 d胫骨灰锌含量,但对肉仔鸡注射后1～6 d和7～12 d的日采食量、日增重、料重比、第6 天胰脏锌及第12 天胰脏锌和胫骨灰锌均无显著影响（P>0.10）；锌水平显著影响（P<0.10）肉仔鸡注射后1～6 d的日增重和料重比、第6和12天的胰脏锌和胫骨灰锌，而对肉仔鸡注射后1～6 d日采食量和7～12 d的日采食量、日增重和料重比均无显著影响（P>0.10）；锌源与锌水平互作对肉仔鸡注射后以上各观测指标均无显著影响（P>0.10）。偏极强络合强度有机锌源组鸡胫骨灰锌含量显著低于弱络合强度有机锌源组和中等络合强度有机锌源组（P<0.10），且有低于无机硫酸锌组的趋势（P>0.10）。对照组肉仔鸡的日增重显著低于注射锌吸收率6%组（P<0.10），其料重比显著高于注射锌吸收率6%与12%组（P<0.10），其它锌吸收率注射水平组之间鸡的日增与重料重比均无显著差异（P>0.10）；随着注射锌水平的升高，肉仔鸡注射后第6、12天胰脏和胫骨灰锌含量呈线性升高（P<0.10）。本试验结果表明，相对于胰脏锌和生长性能而言，静脉注射后第6天的胫骨灰锌能更敏感地反映出不同锌源对肉仔鸡生物学利用性的差异，而偏极强络合强度的有机锌最不利于肉仔鸡体组织的利用。

关键词: 静脉注射; 生长性能; 胰脏锌; 胫骨灰锌; 肉仔鸡

Abstract: An experiment was carried out with a total of 378 22-day-old Arbor Acres commercial male broilers to investigate the effects of intravenously injected Zn source and absorbility level on growth performance and tissue Zn concentration. On 22 d, birds were randomly assigned by bodyweight to one of 9 treatments (Seven pen replicates of six chicks each) in a completely randomized design involving a 4×3 factorial arrangement of treatments. The four Zn sources were Zn sulfate, Zn-AAC with the weak chelation strength, Zn-Pro B with the moderate chelation strength and Zn-Pro A with strong chelation strength, respectively. The three intravenously injected Zn absorbility levels were 0%, 6% and 12%, respectively. All four injected Zn sources shared a control group injected with 0.9% NaCl solution. The birds were injected for 12 days. The results showed that injected Zn source significantly affected (P<0.10) the tibia ash Zn on 6 d after injection. There were no differences (P>0.10) among Zn sources in growth performance during 1 to 6 and 7 to 12 d after injection, pancreas Zn on d 6 after injection, pancreas Zn, and tibia ash Zn on d 12 after injection. Injected Zn absorbility level affected (P<0.10) ADG during d 1 to 6 d, pancreas Zn and tibia ash Zn on d 6 and 12 after injection. No differences were observed (P>0.10) among Zn absorbility level in ADFI during 1 to 6 d or ADFI, ADG and FI during 7 to 12 d after injection. All of the above indices were not affected (P>0.10) by the interaction between Zn source and absorbility level. Chicks injected with solution containing organic Zn source with strong chelation strength had lower (P<0.10) tibia ash Zn concentration than those injected with solution containing organic Zn source with moderate or weak chelation strength, and showed the tendency to be lower (P>0.10) compared with those injected with solution containing inorganic zinc sulfate. The control group had lower (P<0.10) ADG level than the group injected with 6% Zn absorbility solution, and had higher (P<0.10) FI than the group injected with 6% or 12% Zn absorbility solution. There were no differences (P>0.10) among other groups in ADG and FI. Pancreas Zn content and tibia ash Zn content on d 6 and 12 after injection increased linearly (P<0.10) as intravenously injected Zn absorbility level increased. The results indicated that the tibia ash Zn concentration on d 6 after injection was more sensitive for detection of the differences among zinc sources in biological availability. The Zn source with strong chelation strength was the least available for the utilization of tissue in broilers.

Key words: intravenous injection; growth performance; pancreas Zn; tibia ash Zn; broiler

中图分类号:

S816.72

沈素芳;吕林;王润莲;李素芬;张丽阳;罗绪刚. 静脉注射不同锌源与锌水平对肉仔鸡生长性能及组织锌含量的影响[J]. , 2011, 38(3): 11-15.

SHEN Su-fang;LV Lin;WANG Run-lian;LI Su-fen;ZHANG Li-yang;LUO Xu-gang. Effects of Intravenously Injected Zn Source and Level on Growth Performance and Tissue Zn Concentration for Broilers[J]. , 2011, 38(3): 11-15.

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