免疫应激对蛋鸡钙磷代谢的影响

刘世发; 王荣梅; 焦洪超; 赵景鹏; 王晓鹃; 林海

doi:10.3969/j.issn.1006-267x.2015.07.026

动物营养学报 >

2015 , Vol. 27 >Issue 7: 2201 - 2208

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.07.026

研究简报 Short Communications

免疫应激对蛋鸡钙磷代谢的影响

刘世发 ,
王荣梅 ,
焦洪超 ,
赵景鹏 ,
王晓鹃 ,
林海

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山东农业大学动物科技学院, 泰安 271018

收稿日期: 2015-01-06

网络出版日期: 2015-07-07

基金资助

现代农业产业技术体系建设专项资金(nycytx-41-k14)

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Influence of Immunological Stress on Calcium and Phosphorus Metabolism of Laying Hens

LIU Shifa ,
WANG Rongmei ,
JIAO Hongchao ,
ZHAO Jingpeng ,
WANG Xiaojuan ,
LIN Hai

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College of Animal Science and Technology, Shandong Agricultural University, Tai'an 271018, China

Received date: 2015-01-06

Online published: 2015-07-07

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摘要

本试验利用脂多糖(LPS)诱导免疫应激,研究了免疫应激对蛋鸡钙磷代谢的影响。选用体重和生产性能相近的海兰褐蛋鸡20只,分为LPS应激试验组和对照组,试验组按照0.15 mg/kg体重腹腔注射LPS,对照组注射等剂量生理盐水,连续注射10 d,统计生产性能并开展了钙磷代谢试验。结果表明:1)试验组蛋鸡仅在试验第1天平均日采食量发生显著降低(P<0.05),之后逐渐恢复到对照组水平;2组之间蛋壳厚度、蛋壳硬度变化趋势无显著差异(P>0.05)。2)2组之间蛋鸡胫骨指数、胫骨饱满度等指标无显著差异(P>0.05),胫骨切片观察发现试验组蛋鸡胫骨切片中内环骨板发生破损,部分骨小梁断裂。3)代谢试验结果表明,蛋鸡钙磷代谢指标均无显著差异(P>0.05);试验组蛋鸡血清钙、磷含量显著降低(P<0.05),而血清碱性磷酸酶活性没有显著差异(P>0.05)。由此可见,LPS应激初期可以改变蛋鸡采食量,蛋品质等性能也会因此发生波动,但随着注射时间的增加,LPS应激对蛋鸡生产性能的影响会逐步减弱。LPS处理降低了血清钙、磷含量,但是对蛋壳品质和钙磷代谢无显著影响。

关键词： 脂多糖; 应激; 蛋鸡; 代谢

本文引用格式

刘世发 , 王荣梅 , 焦洪超 , 赵景鹏 , 王晓鹃 , 林海 . 免疫应激对蛋鸡钙磷代谢的影响[J]. 动物营养学报, 2015 , 27(7) : 2201 -2208 . DOI: 10.3969/j.issn.1006-267x.2015.07.026

Abstract

The lipopolysaeehafide (LPS) was used to induce immunological stress in order to investigate the effects of immunological stress on calcium and phosphorus metabolism of laying hens. Twenty laying hens of same body weight and performance were divided into LPS group and control group, the LPS group hens were treated with intraperitoneal injection by 0.15 mg/kg, while the control group hens were injected with saline by the same dose. The injection was conducted for 10 days. The performance was counted and the metabolism test of calcium and phosphorus was conducted during the experiment. The results showed as follows: 1) the average daily feed intake decreased significantly only in the first day (P<0.05), then it recovered to same level to the control group. The trends of eggshell thickness and eggshell hardness had no significant differences between the two groups (P>0.05). 2) The tibia index, tibia plumpnessand so on had no significant difference between the two groups (P>0.05). The tibia section of the LPS group hens showed the inner circumferential lamellae happened to be damaged, and some of the trabeculae were broken. 3) The metabolism test of calcium and phosphorus showed that there was no significant difference of calcium and phosphorus metabolism indexes (P>0.05). The content of calcium and phosphorus in serum of LPS group significantly decreased compared with the control group (P<0.05), while the serum alkaline phosphatase activity showed no changes (P>0.05). The results suggests that the LPS can change the feed intakes of laying hens, and it cause the fluctuation of the egg quality in a short period, but as the time goes, the impacts to the performance can be weakened. LPS can decrease the content of calcium and phosphorus in serum, but it has no influence on the egg quality and the metabolism of calcium and phosphorus.

Key words： lipopolysaccharide; stress; laying hens; metabolism

参考文献

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