[1] RAKHSHANDEH A,DE LANGE C F M.Evaluation of chronic immune system stimulation models in growing pigs[J].Animal,2012,6(2):305-310.

[2] HOU Y Q,YAO K,WANG L,et al.Effects of α-ketoglutarate on energy status in the intestinal mucosa of weaned piglets chronically challenged with lipopolysaccharide[J].British Journal of Nutrition,2011,106(3):357-363.

[3] ESCRIBANO D,CAMPOS P H R F,GUTIÉRREZ A M,et al.Effect of repeated administration of lipopolysaccharide on inflammatory and stress markers in saliva of growing pigs[J].The Veterinary Journal,2014,200(3):393-397.

[4] CAMPOS P H R F,MERLOT E,DAMON M,et al.High ambient temperature alleviates the inflammatory response and growth depression in pigs challenged with
Escherichia coli lipopolysaccharide[J].The Veterinary Journal,2014,200(3):404-409.

[5] KELEY E B,SPEARS J W,AUMAN S K.Dietary phosphorus and an inflammatory challenge affect performance and immune function of weanling pigs[J].Journal of Animal Science,2001,79(2):413-419.
[6] LIU Y L ,LI D F,GONG L M,et al.Effects of fish oil supplementation on the performance and the immunological,adrenal,and somatotropic responses of weaned pigs after an
Escherichia coli lipopolysaccharide challenge[J].Journal of Animal Science,2003,81(11):2758-2765.
[7] MAO X F,PIAO X S,LAI C H,et al.Effects of β-glucan obtained from the Chinese herb Astragalus membranaceus and lipopolysaccharide challenge on performance,immunological,adrenal,and somatotropic responses of weanling pigs[J].Journal of Animal Science,2005,83(10):2775-2782.
[8] KIM J C,MULLAN B P,FREY B,et al.Whole body protein deposition and plasma amino acid profiles in growing and/or finishing pigs fed increasing levels of sulfur amino acids with and without
Escherichia coli lipopolysaccharide challenge[J].Journal of Animal Science,2012,90(Suppl.4):362-365.
[9] WEBEL D M,FINCK B N,BAKER D H,et al.Time course of increased plasma cytokines,cortisol,and urea nitrogen in pigs following intraperitoneal injection of lipopolysaccharide[J].Journal of Animal Science,1997,75(6):1514-1520.
[10] ASH S A,GRIFFIN G E.Effect of parenteral nutrition on protein turnover in endotoxaemic rats[J].Clinical Science,1989,76(6):659-666.
[11] DEITCH E A.Animal models of sepsis and shock:a review and lessons learned [J].Shock,1998,9(1):1-11.

[12] WRIGHT K J,BALAJI R,HILL C M,et al.Integrated adrenal,somatotropic,and immune responses of growing pigs to treatment with lipopolysaccharide[J].Journal of Animal Science,2000,78(7):1892-1899.
[13] GAINES A M,CARROLL J A,YI G F,et al.Effect of menhaden fish oil supplementation and lipopolysaccharide exposure on nursery pigs Ⅱ.Effects on the immune axis when fed simple or complex diets containing no spray-dried plasma[J].Domestic Animal Endocrinology,2003,24(4):353-365.

[14] DRITZ S S,OWEN K Q,GOODBAND R D,et al.Influence of lipopolysaccharide-induced immune challenge and diet complexity on growth performance and acute-phase protein production in segregated early-weaned pigs[J].Journal of Animal Science,1996,74(7):1620-1628.
[15] CARROLL J A,DANIEL J A,KEISLER D H,et al.Non-surgical catheterization of the jugular vein in young pigs[J].Laboratory Animals,1999,33(2):129-134.

[16] 张丽英.饲料分析及饲料质量检测技术[M].北京:中国农业出版社,2010.
[17] BESEDOVASKY H O,DEL R A.Immune-neuro-endocrine interactions:facts and hypotheses[J].Endocrine Reviews,1996,17(1):64-102.

[18] KLASING K C,LAURIN D E,PENG R K,et al.Immunologically mediated growth depression in chicks:influence of feed intake,corticosterone and interleukin-1[J].Journal of Nutrition,1987,117(9):1629-1637.
[19] LI J,LI D F,XING J J,et al.Effects of β-glucan extracted from
Saccharomyces cerevisiae on growth performance,and immunological and somatotropic responses of pigs challenged with
Escherichia coli lipopolysaccharide[J].Journal of Animal Science,2006,84(9):2374-2381.

[20] EICHER S D,MCKEE C A,CARROLL J A,et al.Supplemental vitamin C and yeast cell wall β-glucan as growth enhancers in newborn pigs and as immunomodulators after an endotoxin challenge after weaning[J].Journal of Animal Science,2006,84(9):2352-2360.

[21] 张玉俊.糖皮质激素影响肉仔鸡采食量的机制研究[D].泰安:山东农业大学,2011.
[22] 冯焱.免疫应激对肉鸡消化系统、免疫功能及肠道微生物区系的影响[D].杨凌:西北农林科技大学,2012.
[23] 陈静,刘显军,张飞,等.谷氨酰胺对免疫应激仔猪肠道指数的影响研究[J].中国饲料,2010(4):34-40.
[24] BURKHOLDER K M,THOMPSON K L,EINSTEIN M E,et al.Influence of stressors on normal intestinal microbiota,intestinal morphology,and susceptibility to
Salmonella enteritidis colonization in broilers[J].Poultry Science,2008,87(9):1734-1741.

[25] Lobo S M,BACKER D D,SUN Q H,et al.Gut mucosal damage during endotoxic shock is due to mechanisms other than gut ischemia[J].Journal of Applied Physiology,2003,95(5):2047-2054.