Attenuating Effects of Glutamate and Arginineon Damage of Finishing Pig Feda Contaminated Diet

CHEN Minghong; DUAN Jielin; YIN Jie; LIU Jinyan; LI Tiejun; FANG Jun

doi:10.3969/j.issn.1006-267x.2013.09.024

Chinese Journal of Animal Nutrition >

2013 , Vol. 25 >Issue 9: 2101 - 2110

DOI: https://doi.org/10.3969/j.issn.1006-267x.2013.09.024

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Attenuating Effects of Glutamate and Arginineon Damage of Finishing Pig Feda Contaminated Diet

CHEN Minghong ,
DUAN Jielin ,
YIN Jie ,
LIU Jinyan ,
LI Tiejun ,
FANG Jun

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1. College of Bioscience and Technology, Hunan Agricultural University, Changsha 410128, China;
2. Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;
3. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
4. University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2013-03-02

Online published: 2013-08-18

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Abstract

This study was conducted to test the effects of a contaminated diet on growth performance, visceral indexes, blood routine, serum biochemical indexes, anti-oxidant indexes and meat quality of finishing pigs, and the attenuating effects of dairy 1% arginine (Arg) and 2% glutamate (Glu) on the damage challenged by the contaminated diet. A total of 20 finishing pigs (Landrace × Large White) with an average initial body weight of (55.0±1.50) kg were randomly allocated to 4 groups which were control group receiving an uncontaminated basal diet, contaminated group receiving the basal diet after mildew processing, Arg group receiving the contaminated diet and 1% Arg, and Glu group receiving the contaminated diet and 2% Glu, and each group had 5 replicates with 1 pigs each. The experiment lasted for 60 d. The results showed as follows: 1) compared with control group, final weight, average daily gain and average daily feed intake of finishing pigs in contaminated group were significantly decreased (P<0.05), but the supplementation of Arg or Glu could not increase the growth performance. 2) Compared with control group, liver index in contaminated group was significantly increased and spleen index was significantly decreased (P<0.05). Compared with contaminated group, liver index in Glu group was significantly decreased and spleen index was significantly increased (P<0.05). 3) Compared with control group, serum γ-glutamine transferase activity in contaminated group was significantly increased (P<0.05), and albumin and total protein contents were significantly decreased (P<0.05). Compared with contaminated group, serum alanine transarninase and lactate dehydrogenase activities in Arg group were significantly decreased (P<0.05). 4) Compared with control group, mean red cell volume in contaminated group was significantly decreased (P<0.05), and thrombocytocrit was significantly increased (P<0.05). Compared with contaminated group, the percentage of neutrophil granulocyte and mononuclear cells absolute value in Arg group were significantly increased (P<0.05); the percentage of mononuclear cells, mean red cell volume and mean platelet volume in Glu group were significantly increased (P<0.05), and thrombocytocrit was significantly decreased (P<0.05). 5) Compared with control group, serum superoxide dismutase (SOD) activity in contaminated group was significantly decreased (P<0.05). Compared with contaminated group, serum glutathione peroxidase activity in Glu group and Arg group was significantly increased (P<0.05), and SOD activity in Glu group was also significantly increased (P<0.05). 6) Compared with control group, muscle tenderness in contaminated group was significantly decreased by 20.22% (P<0.05). Compared with contaminated group, muscle tenderness in Arg group was significantly increased (P<0.05) and significantly higher than that in control group (P<0.05). In conclusion, the supplementation of 1% Arg or 2% Glu can alleviate the damage of organ, antioxidant system, and meat quality of finishing pigs challenged by the contaminated diet.

Key words： contaminated diet; finishing pig; arginine; glutamate

Cite this article

CHEN Minghong , DUAN Jielin , YIN Jie , LIU Jinyan , LI Tiejun , FANG Jun . Attenuating Effects of Glutamate and Arginineon Damage of Finishing Pig Feda Contaminated Diet[J]. Chinese Journal of Animal Nutrition, 2013 , 25(9) : 2101 -2110 . DOI: 10.3969/j.issn.1006-267x.2013.09.024

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