动物营养学报 >

2015 , Vol. 27 >Issue 11: 3468 - 3477

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.11.018

特种经济动物营养 Special Economic Animal Nutrition

饲粮维生素B6添加水平对3~5月龄生长獭兔消化代谢和抗氧化性能的影响

  • 刘公言 ,
  • 孙超然 ,
  • 尚随民 ,
  • 吴振宇 ,
  • 王春阳 ,
  • 李福昌
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  • 山东农业大学动物科技学院, 泰安 271018

收稿日期: 2015-05-29

  网络出版日期: 2015-11-21

基金资助

现代农业产业技术体系建设专项(CARS-44-B-1);国家公益性行业(农业)科研专项(2000903006);山东省农业重大应用技术创新课题(肉、獭兔高效高产技术研究、集成与推广)

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Effects of Dietary Vitamin B6 Supplemental Level on Digestion and Metabolism, and Antioxidant Ability of 3 to 5-Month Old Growing Rex Rabbits

  • LIU Gongyan ,
  • SUN Chaoran ,
  • SHANG Suimin ,
  • WU Zhenyu ,
  • WANG Chunyang ,
  • LI Fuchang
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  • College of Animal Science and Technology, Shandong Agricultural University, Tai'an 271018, China

Received date: 2015-05-29

  Online published: 2015-11-21

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摘要

本试验旨在研究饲粮维生素B6添加水平对3~5月龄生长獭兔消化代谢和抗氧化性能的影响。选用200只3月龄獭兔,随机分成5组(每组40个重复,每个重复1只),分别饲喂在基础饲粮中添加0、5、10、20和40 mg/kg维生素B6的试验饲粮。预试期7 d,正试期54 d。结果表明:饲粮维生素B6添加水平极显著影响食入氮(P=0.004 5),显著影响可消化氮(P=0.034 4)和氮表观消化率(P=0.043 6),其中10和20 mg/kg组食入氮极显著高于其他组(P<0.01),可消化氮和氮表观消化率均在10 mg/kg组达到最大值,但与20 mg/kg组差异不显著(P>0.05)。饲粮维生素B6添加水平极显著影响蛋氨酸的表观消化率(P=0.006 8),显著影响半胱氨酸(P=0.011 3)、谷氨酸(P=0.022 6)和丝氨酸的表观消化率(P=0.047 8),并均在20 mg/kg组达到最大值。饲粮维生素B6添加水平显著影响胰腺胰蛋白酶(P=0.035 4)和糜蛋白酶活性(P=0.043 2),并均在20 mg/kg组达到最高值。饲粮维生素B6添加水平显著影响血清总蛋白(P=0.014 3)和尿素氮含量(P=0.048 2),并分别在20 mg/kg组达到最高值和最低值。饲粮维生素B6添加水平极显著影响血清总抗氧化能力(P=0.004 5),显著影响血清谷胱甘肽过氧化物酶(P=0.044 2)和总超氧化物歧化酶活性(P=0.048 1),并均在20 mg/kg组达到最高值,且血清丙二醛含量在20 mg/kg组达到最低值。综合本试验测定指标,3~5月龄生长獭兔饲粮适宜的维生素B6添加水平为10~20 mg/kg。

关键词： 维生素B6; 獭兔; 消化代谢; 血清生化指标; 血清抗氧化指标

本文引用格式

刘公言 , 孙超然 , 尚随民 , 吴振宇 , 王春阳 , 李福昌 . 饲粮维生素B6添加水平对3~5月龄生长獭兔消化代谢和抗氧化性能的影响[J]. 动物营养学报, 2015 , 27(11) : 3468 -3477 . DOI: 10.3969/j.issn.1006-267x.2015.11.018

Abstract

The experiment was conducted to investigate the effects of dietary vitamin B6 supplemental level on digestion and metabolism, and antioxidant ability of 3 to 5-month old growing Rex rabbits. A total 200 3-month old health Rex rabbits were randomly divided into 5 groups with 40 replicates in each group and 1 rabbit in each replicate. Rabbits in the 5 groups were fed the basal diet supplemented with 0, 5, 10, 20 and 40 mg/kg vitamin B6, respectively. The trial lasted for 7 days for adaptation, and 54 days for test. The results showed as follows:dietary vitamin B6 supplemental level had an extremely significant influence on nitrogen intake (IN) (P=0.004 5), and had significant influences on digestible nitrogen (DN) (P=0.034 4) and nitrogen apparent digestibility (NAD) (P=0.043 6). The IN in 10 and 20 mg/kg groups was extremely significantly higher than that in other groups (P<0.01), and the DN and NAD in 10 mg/kg group came to the maximum, but had no significant influences compared with 20 mg/kg group (P>0.05). Dietary vitamin B6 supplemental level had an extremely significant influence on methionine apparent digestibility (P=0.006 8), had significant influence on cystine (P=0.011 3), glutamate (P=0.022 6) and serine apparent digestibility (P=0.047 8), and all of them in 20 mg/kg group came to the maximum. Dietary vitamin B6 supplemental level had significant influences on pancreatic trypsin (P=0.035 4) and chymotrypsin activities (P=0.043 2), and the highest values were all found in the 20 mg/kg group. Dietary vitamin B6 supplemental level had significant influences on serum total protein (TP) (P=0.014 3) and urea nitrogen (UN) contents (P=0.048 2), and the highest value of TP content and the lowest value of UN content were all found in the 20 mg/kg group. Dietary vitamin B6 supplemental level had an extremely significant influence on serum total antioxidant capacity (T-AOC) (P=0.006 9), had significant influences on serum glutathione peroxidase (GSH-Px) (P=0.044 2) and total superoxide dismutase (T-SOD) activities (P=0.048 1), and the highest values of them were all in the 20 mg/kg group, meanwhile, the serum malonaldehyde (MDA) content in the 20 mg/kg group had the minimum. Considering all indices of this experiment, the appropriate dietary vitamin B6 supplemental level is 10 to 20 mg/kg for 3 to 5-month old growing Rex rabbits.

Key words： vitamin B6; Rex rabbit; digestion and metabolism; serum biochemical indices; serum antioxidant indices

参考文献

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