| 不同锰源与锰水平对肉仔鸡生产性能和组织矿物元素沉积的影响 |
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| 引用本文： | 王殿永.不同锰源与锰水平对肉仔鸡生产性能和组织矿物元素沉积的影响[J].畜牧与饲料科学,2019,40(1):41-45. |
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| 作者姓名： | 王殿永 |
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| 作者单位： | [1]河北省昌黎县动物疫病预防控制中心,河北昌黎066600 |
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| 摘 要： | 为研究不同锰源与锰水平对肉仔鸡的生产性能与组织矿物元素沉积的影响,试验采用2×5完全随机试验设计,在玉米—豆粕型基础日粮(锰含量为37.66mg/kg)中添加0、45、90、130、180mg/kg(5个锰添加水平)的复合氨基酸锰和硫酸锰(2种锰源),构成10个日粮处理组,将540只1日龄健康艾维茵肉仔鸡随机分为10个处理组,开展肉仔鸡饲养试验(共42d)。于35日龄时测定其生产性能指标,计算料肉比;于42日龄时测定其胫骨、肝脏、肾脏组织中铜、铁、锌浓度以及胫骨灰分、钙及磷含量。结果表明,在上述日粮中,锰添加量在45~130mg/kg时,无论是添加复合氨基酸锰组还是添加硫酸锰组35日龄肉仔鸡体重和采食量较未添加组差异显著(P≤0.05),经分析,锰水平对其平均体重及采食量有极显著影响(P<0.01);不同锰源的35日龄肉仔鸡体重、采食量、料肉比差异不显著(P >0.05)。42日龄肉仔鸡胫骨、肝脏、肾脏组织中铜、锌、铁含量及胫骨灰分、钙磷含量未受锰源和锰水平及两者互作的显著影响(P >0.05)。由以上结果可以得出,锰水平对肉仔鸡生长性能有极显著影响(P<0.01);锰源对肉仔鸡生产性能无显著影响(P >0.05);锰源和锰水平及两者互作对肉仔鸡组织矿物元素沉积无显著影响(P >0.05)。
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| 关 键 词： | 锰源 锰水平 生产性能 矿物元素沉积 肉仔鸡 |
| 收稿时间： | 2018-11-26 |
Effects of Different Sources and Levels of Dietary Manganese on Growth Performance and Mineral Tissue Deposition of Broilers |
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| WANG Dian-yong.Effects of Different Sources and Levels of Dietary Manganese on Growth Performance and Mineral Tissue Deposition of Broilers[J].Animal Husbandry and Feed Science,2019,40(1):41-45. |
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| Authors: | WANG Dian-yong |
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| Institution: | [1]Animal Epidemic Prevention and Control Center of Changli County of Hebei Province,Changli 066600,China |
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| Abstract: | An experiment was conducted using a completely randomized design 2×5 factorial arrangements to investigate the assess the influence of different sources and levels of dietary manganese on growth performance and mineral tissue deposition of broilers.A total of 540 healthy Avian broilers were assigned randomly to one of ten dietary treatments of 3 replicate cages each with 18 chicks per cage,and fed a basal corn-soybean meal diet containing 0,45,90,130,180 mg of Mn/kg from a compound Mn-amino acid(Mn-AA)preparation or the basal diet supplemented with 0,45,90,130,180 mg of Mn/kg from MnSO4·H2O.The feeding experiment lasted for 42 days.At 35 days of age,the growth performance indexes of the broilers were determined,and the feed to gain ratio was calculated;at 42 days of age,the contents of copper,iron,zinc in tibia,liver and kidney and the levels of ash,calcium and phosphorus in tibia were evaluated.The results showed that when the dietary manganese supplementation levels ranged from 45 to 130 mg/kg,there were significant differences in 35-day-old weight and feed intake between Mn-AA or MnSO4·H2O supplemented treatments and Mn-unsupplemented treatments(P≤0.05),and the different dietary levels of Mn had a statistically significant effect on average weight and feed intake(P<0.01);no significant differences in 35-day-old weight,feed intake and feed to gain ratio were observed in the broilers fed the diet supplemented with Mn from different sources(P >0.05).There were no significant effects of different sources or levels of dietary manganese and their interactions on the contents of copper,iron,zinc in tibia,liver and kidney and the levels of ash,calcium and phosphorus in tibia of broilers 42 days of age(P >0.05).Our results demonstrate that dietary manganese supplementation levels have a very significant effect on growth performance of broilers(P<0.01),different sources of dietary manganese express no significant effect on growth performance of broilers(P >0.05),and the sources or levels of dietary manganese and their interactions exhibit no significant effect on mineral tissue deposition of broilers(P >0.05). |
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