饲粮泛酸添加水平对3~5月龄獭兔生产性能和抗氧化功能的影响

赵楠; 刘公言; 刘磊; 朱岩丽; 李福昌

doi:10.3969/j.issn.1006-267x.2015.08.036

动物营养学报 >

2015 , Vol. 27 >Issue 8: 2614 - 2621

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.08.036

研究简报 Short Communications

饲粮泛酸添加水平对3~5月龄獭兔生产性能和抗氧化功能的影响

赵楠 ,
刘公言 ,
刘磊 ,
朱岩丽 ,
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: 2015-03-12

网络出版日期: 2015-08-13

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 Pantothenic Acid Supplemental Levels on Performance and Antioxidant Function of 3 to 5-Month-Old Rex Rabbits

ZHAO Nan ,
LIU Gongyan ,
LIU Lei ,
ZHU Yanli ,
LI Fuchang

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

Received date: 2015-03-12

Online published: 2015-08-13

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摘要

本试验旨在研究饲粮泛酸添加水平对3~5月龄獭兔生产性能和抗氧化功能的影响。试验选用体况相近的3月龄獭兔200只,随机分成5组,每组40个重复,每个重复1只。5组獭兔分别饲喂泛酸添加水平为0、10、20、40和80 mg/kg的基础饲粮,饲粮中泛酸含量实测值为6.68、15.16、27.32、48.80和88.65 mg/kg。预试期7 d,正试期53 d。结果表明:1)饲粮泛酸添加水平极显著影响平均日采食量(P<0.000 1),显著影响料重比(P=0.045 2),且在饲粮泛酸添加水平为40 mg/kg时料重比最低,对平均日增重无显著影响(P=0.140 1)。2)饲粮泛酸添加水平极显著影响毛皮面积(P<0.000 1)和被毛长度(P<0.000 1),对毛皮重量无显著影响(P=0.106 0),毛皮厚度有先升高后降低的趋势(P=0.051 5)。随着饲粮泛酸添加水平的提高,毛皮面积及被毛长度先升高后降低,且分别在泛酸添加水平为40和20 mg/kg时达到最大值。3)饲粮泛酸添加水平极显著影响肌肉滴水损失(P=0.003 6),显著影响肌肉的红度值(P=0.024 6)与黄度值(P=0.015 4),而对屠宰率(P=0.702 8)、45 min内pH(P=0.100 7)、剪切力(P=0.317 3)和亮度值(P=0.411 1)均无显著影响。当饲粮泛酸添加水平为40 mg/kg时滴水损失最小,黄度值先升高后下降,在饲粮泛酸添加水平为40 mg/kg时达到最大值。4)饲粮添加40 mg/kg泛酸显著降低肝脏中8-异前列腺素F2α(P=0.049 5)、蛋白质羰基含量(P=0.019 5),极显著降低血浆中8-异前列腺素F2α含量(P=0.001 0)。综合本试验测定指标,3~5月龄獭兔饲粮适宜的泛酸添加水平为20~40 mg/kg(饲粮中泛酸的实测含量为27.32~48.80 mg/kg)。

关键词： 泛酸; 獭兔; 生产性能; 抗氧化

本文引用格式

赵楠 , 刘公言 , 刘磊 , 朱岩丽 , 李福昌 . 饲粮泛酸添加水平对3~5月龄獭兔生产性能和抗氧化功能的影响[J]. 动物营养学报, 2015 , 27(8) : 2614 -2621 . DOI: 10.3969/j.issn.1006-267x.2015.08.036

Abstract

This experiment was conducted to investigate the effects of dietary pantothenic acid supplemental level on performance and antioxidant function of 3 to 5-month-old Rex rabbits. Two hundred 3-month-old Rex rabbits with similar health conditions were randomly assigned to 5 groups with 40 replicates per group and 1 rabbit per replicate. Rabbits in 5 groups were fed with the basal diets supplemented with 0, 10, 20, 40 and 80 mg/kg pantothenic acid, to make the measured values of pantothenic acid content in diets were 6.68, 15.16, 27.32, 48.80 and 88.65 mg/kg, respectively. The trial lasted for 7 days for adaptation and 53 days for test. The results showed as follows: 1) dietary pantothenic acid supplemental level had extremely significant influence on average daily feed intake (P<0.000 1), had significant influence on feed/gain (P=0.045 2), and the lowest feed/gain was in 40 mg/kg pantothenic acid group, while had no significant influence on average daily gain (P=0.140 1). 2) Dietary pantothenic acid supplemental level had extremely significant influences on fur area (P<0.000 1) and wool length (P<0.000 1), while had no significant influence on fur weight (P=0.106 0) and had a tendency to rise before reducing on fur thickness (P=0.051 5). 3) Dietary pantothenic acid supplemental level had extremely significant influence on drip loss (P=0.003 6), had significant influences on meat a^* value (P=0.024 6) and b^* values (P=0.015 4), while had no significant influences on dressing percentage (P=0.702 8), pH within 45 min (P=0.100 7), shear stress (P=0.317 3)and meat L^* value (P=0.411 1). 4) Supplementation of 40 mg/kg pantothenic acid could significantly reduce 8-iso-prostaglandin F2α (8-ISO-PGF2α) (P=0.049 5) and protein carbonyl contents (P=0.019 5) in liver and extremely significant reduce 8-ISO-PGF2α content in plasma (P=0.001 0). Considering all indexes of this experiment, the appropriate dietary pantothenic acid supplemental levels are 20 to 40 mg/kg for 3 to 5-month-old Rex rabbits (dietary pantothenic acid measured content are 27.32 to 48.80 mg/kg).

Key words： pantothenic acid; Rex rabbit; performance; antioxidant

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