研究简报 Short communications

复合有机微量元素对崇仁麻鸡生长性能和粪便中微量元素含量的影响

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  • 江西省农业科学院畜牧兽医研究所, 南昌 330200
宋琼莉(1975-),女,江西丰城人,副研究员,学士,从事动物营养和饲料添加剂研究。E-mail:songqiongli1975@126.com

收稿日期: 2017-09-06

  网络出版日期: 2018-03-05

基金资助

江西省科技计划(20132BBF60046,20151BBF60063);国家肉鸡产业技术体系(CARS-41-Z09);农业部饲料生物技术重点实验室开放课题

Effects of Complex Organic Trace Elements on Growth Performance and Trace Element Contents of Feces of Chongren Chickens

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  • Institute of Animal Husbandry and Veterinary Science, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China

Received date: 2017-09-06

  Online published: 2018-03-05

摘要

本试验旨在研究不同水平复合有机微量元素替代无机微量元素对崇仁麻鸡生长性能和粪便中微量元素含量的影响。选择28日龄、初始体重相近的崇仁麻鸡256只(公母各占1/2),随机分为4组,每组4个重复,每个重复16只鸡。Ⅰ组为对照组(标准水平无机组),微量元素铁、铜、锰、锌的添加水平分别为80、8、80和60 mg/kg(以无机盐形式添加);Ⅱ~Ⅳ组分别以50%、75%和100%复合有机微量元素替代无机微量元素。各组其他营养水平保持一致。预试期7 d,正试期28 d。结果表明:1)各组崇仁麻鸡的平均日增重、平均日采食量和料重比均无显著差异(P>0.05)。2)与对照组相比,Ⅱ、Ⅲ和Ⅳ组崇仁麻鸡的血清尿素氮含量显著降低(P<0.05);Ⅲ和Ⅳ组的血清碱性磷酸酶和5'-核苷酸酶活性显著增加(P<0.05)。3)各组崇仁麻鸡粪便中铜和铁含量无显著差异(P<0.05)。与对照组相比,Ⅱ组粪便中锌和锰含量显著降低(P<0.05)。综合各项指标,在不影响肉鸡生长性能的情况下,以饲粮中添加50%复合有机微量元素替代无机微量元素对减少粪便中铜、铁、锌、锰含量的效果较好。

本文引用格式

宋琼莉, 陈小连, 周泉勇, 韦启鹏, 刘林秀, 邹志恒, 谢金防 . 复合有机微量元素对崇仁麻鸡生长性能和粪便中微量元素含量的影响[J]. 动物营养学报, 2018 , 30(3) : 1172 -1177 . DOI: 10.3969/j.issn.1006-267x.2018.03.043

Abstract

This research was conducted to explore the effects of complex organic trace elements at different levels replacing inorganic trace elements on growth performance and trace element contents of feces of Chongren chickens. Two hundred and fifty six 28-day-old Chongren chickens (males and female in half) with similar initial body weight were randomly divided into 4 groups with 4 replicates per group and 16 chickens per replicate. The chickens in control group (group Ⅰ, standard level inorganic group) were fed the diets supplemented with 80 mg/kg Fe, 8 mg/kg Cu, 80 mg/kg Mn and 60 mg/kg Zn in inorganic salt. The others in groups Ⅱ to Ⅳ were fed the diets supplemented with complex organic trace elements at 50%, 75% and 100% replacing inorganic trace elements, respectively. The other nutrient levels were the same in all groups. The pre-test lasted for 7 days, and the experiment lasted for 28 days. The results showed as follows:1) there were no significant differences in average daily gain, average daily feed intake and the ratio of feed to gain of Chongren chickens in all groups (P>0.05). 2) Compared with control group, the content of serum urea nitrogen of Chongren chickens in groups Ⅱ, Ⅲ and Ⅳ was significantly decreased (P<0.05), and the activities of alkaline phosphatase and 5'-nucleotidase in serum in groups Ⅲ and Ⅳ were significantly increased (P<0.05). 3) There were no significant differences in the contents of Fe and Cu of feces of Chongren chickens in all groups (P>0.05). Compared with control group, the contents of Zn and Mn of feces of Group Ⅱ were significantly decreased (P<0.05). According to the results, dietary 50% complex organic trace elements replacing inorganic trace elements can obtain the better effects of decreasing the contents of Cu, Fe, Zn and Mn of feces without affecting growth performance of chickens.

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