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

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

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

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

Molecular Nutrition

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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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

Cite this article

ZHAO Nan , LIU Gongyan , LIU Lei , ZHU Yanli , LI Fuchang . Effects of Dietary Pantothenic Acid Supplemental Levels on Performance and Antioxidant Function of 3 to 5-Month-Old Rex Rabbits[J]. Chinese Journal of Animal Nutrition, 2015 , 27(8) : 2614 -2621 . DOI: 10.3969/j.issn.1006-267x.2015.08.036

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