Effects of pre-slaughter stressor and feeding preventative Chinese medicinal herbs on glycolysis and oxidative stability in pigs.
A total of 64 5-month-old Pietrain pigs were randomly allocated to four treatments with four replicates per treatment according to body weight. The pigs were fed either a standard corn-soybean meal based control diet (treatments 1 and 2), the standard diet with 1% Lycium barbarum (LB) (treatment 3), or the standard diet with 1% Polygala tenuifolia Willd (PT) (treatment 4). Serum lactic acid and glucose concentrations were increased in stressed pigs (P < 0.05). Addition of the herbs in the diet had no effect on the serum lactic acid concentration, but 1% LB decreased (P < 0.05) serum glucose concentration in the stressed pigs. Pre-slaughter stress also decreased (P < 0.01) liver glycogen concentration and the decrease could be inhibited by addition of 1% LB in the diet (P > 0.05). Pre-slaughter stress increased the concentration of maleic dialdehyde (MDA) (P < 0.05) and decreased glutathione peroxidase (GSH-Px) activity in serum, while dietary 1% LB increased (P < 0.05) the activity of GSH-Px and decreased the concentration of MDA in the serum. In conclusion, pre-slaughter stress induces oxidative stress in pigs and dietary supplementation with 1% LB improves antioxidant capacity in stressed pigs before slaughtering.
State Key Laboratory of Direct-Fed Microbial Engineering.
Xiumei
X
Bai
State Key Laboratory of Direct-Fed Microbial Engineering.
Xue
X
Yan
Beijing Feed Safety and Biological Control Engineering Research Center, Beijing.
Linqi
L
Xie
Beijing Feed Safety and Biological Control Engineering Research Center, Beijing.
Xiaodong
X
Hu
Department of Animal Science, North Carolina State University, Raleigh, USA.
Xi
X
Lin
Feed Research and Technology Center, Beijing DaBeiNong Science and Technology Group Company, Ltd. (DBN Group).
Changzheng
C
Wu
Inner Mongolia Ulanqab Institute of Animal Husbandry Science, Ulanqab Inner Mongolia, China.
Ningcong
N
Zhou
State Key Laboratory of Direct-Fed Microbial Engineering.
Anru
A
Wang
Department of Animal Science, North Carolina State University, Raleigh, USA.
Miles Todd
MT
See
D000003:Abattoirs; D000821:Animal Feed; D000818:Animals; D000975:Antioxidants; D001786:Blood Glucose / Q000378:metabolism; D004032:Diet / Q000662:veterinary*; D019587:Dietary Supplements; D005260:Female; D006019:Glycolysis / Q000187:drug effects*; D019344:Lactic Acid / Q000097:blood; D032305:Lycium; D008297:Male; D010084:Oxidation-Reduction / Q000187:drug effects*; D018384:Oxidative Stress / Q000502:physiology*; D010946:Plants, Medicinal; D031801:Polygala; D013025:Glycine max; D013312:Stress, Physiological / Q000502:physiology*; D013552:Swine / Q000378:metabolism* / Q000502:physiology*; D003313:Zea mays
D000975:Antioxidants; D001786:Blood Glucose; D019344:Lactic Acid
Chinese medicinal herbs; glycogen; oxidative; pig; stress