[1] 侯水生, 刘灵芝.2021年水禽产业现状、未来发展趋势与建议[J].中国畜牧杂志, 2022, 58(3):227-231, 238. HOU S S, LIU L Z.2021 Waterfowl industry status, future development trends and proposals[J].Chinese Journal of Animal Science, 2022, 58(3):227-231, 238.(in Chinese)
[2] 江一鸣, 朱喜.做实白鹅产业 促进区域发展[N].消费日报, 2020-06-17(B01). JIANG Y M, ZHU X.Make the white goose industry realistic and promote regional development[N].Consumption Daily, 2020-06-17(B01).
[3] MAO X B, GU C S, REN M, et al.
L-isoleucine administration alleviates rotavirus infection and immune response in the weaned piglet model[J].Frontiers in Immunology, 2018, 9:1654.
[4] 黄忠, 周传朋, 林黑着, 等.饲料异亮氨酸水平对卵形鲳鲹消化酶活性和免疫指标的影响[J].南方水产科学, 2017, 13(1):50-57. HUANG Z, ZHOU C P, LIN H Z, et al.Effects of dietary isoleucine levels on activities of digestive enzymes and immune index of
Trachinotus ovatus[J].South China Fisheries Science, 2017, 13(1):50-57.(in Chinese)
[5] SCHAART M W, SCHIERBEEK H, VAN DER SCHOOR S R D, et al.Threonine utilization is high in the intestine of piglets[J].The Journal of Nutrition, 2005, 135(4):765-770.

[6] 刘升国, 曲正祥, 蒙国华, 等.苏氨酸对肉鸡肠道形态、黏膜免疫及黏蛋白表达的影响[C]//中国畜牧兽医学会动物营养学分会第十二次动物营养学术研讨会论文集.武汉:中国畜牧兽医学会, 2016:289. LIU S G, QU Z X, MENG G H, et al.Effect of threonine on intestinal morphology, mucosal immunity and mucin expression in broiler chickens[C]//Proceedings of the 12th Animal Nutrition Symposium of the Animal Nutrition Branch of the Chinese Society of Animal Husbandry and Veterinary Medicine.Wuhan:Chinese Association of Animal Science and Veterinary Medicine, 2016:289.(in Chinese)
[7] 任曼, 吕照勇, 史凯, 等.异亮氨酸对大鼠空肠形态和抗菌肽表达的影响[J].安徽科技学院学报, 2016, 30(4):6-10. REN M, LV Z Y, SHI K, et al.Modulation of isoleucine on intestinal morphology and antimicrobial peptide expression in rat jejunum[J].Journal of Anhui Science and Technology University, 2016, 30(4):6-10.(in Chinese)
[8] REN M, LIU X T, WANG X, et al.Increased levels of standardized ileal digestible threonine attenuate intestinal damage and immune responses in
Escherichia coli K88
+ challenged weaned piglets[J].Animal Feed Science and Technology, 2014, 195:67-75.
[9] DONG X Y, AZZAM M M M, ZOU X T.Effects of dietary threonine supplementation on intestinal barrier function and gut microbiota of laying hens[J].Poultry Science, 2017, 96(10):3654-3663.

[10] 佚名.中国饲料成分及营养价值表(2019年第30版)[J].中国饲料, 2019(22):111-116. Anon.Tables of feed composition and nutritive in China (2019 thirty edition)[J].China Feed, 2019(22):111-116.(in Chinese)
[11] CAPORASO J G, KUCZYNSKI J, STOMBAUGH J, et al.QIIME allows analysis of high-throughput community sequencing data[J].Nature Methods, 2010, 7(5):335-336.

[12] CALLAHAN B J, MCMURDIE P J, ROSEN M J, et al.DADA2:high-resolution sample inference from Illumina amplicon data[J].Nature Methods, 2016, 13(7):581-583.

[13] KERKAERT H R, CEMIN H S, WOODWORTH J C, et al.Improving performance of finishing pigs with added valine, isoleucine, and tryptophan:validating a meta-analysis model[J].Journal of Animal Science, 2021, 99(1):skab006.
[14] ZHANG H, CHEN Y P, LI Y, et al.
L-threonine improves intestinal mucin synthesis and immune function of intrauterine growth-retarded weanling piglets[J].Nutrition, 2019, 59:182-187.
[15] LIN X J, LI L, GOU Z Y, et al.Reproductive performance, metabolism and oxidative stress profile in Chinese yellow-feathered broiler breeder hens fed multiple levels of isoleucine[J].British Poultry Science, 2021, 62(4):509-516.

[16] TANG Q, TAN P, MA N, et al.Physiological functions of threonine in animals:beyond nutrition metabolism[J].Nutrients, 2021, 13(8):2592.
[17] GU C S, MAO X B, CHEN D W, et al.Isoleucine plays an important role for maintaining immune function[J].Current Protein & Peptide Science, 2019, 20(7):644-651.

[18] ZHANG Y Y, GUO K Y, LEBLANC R E, et al.Increasing dietary leucine intake reduces diet-induced obesity and improves glucose and cholesterol metabolism in mice via multimechanisms[J].Diabetes, 2007, 56(6):1647-1654.

[19] LAYMAN D K, WALKER D A.Potential importance of leucine in treatment of obesity and the metabolic syndrome[J].The Journal of Nutrition, 2006, 136(Suppl.1):319S-323S.
[20] NISHIMURA J, MASAKI T, ARAKAWA M, et al.Isoleucine prevents the accumulation of tissue triglycerides and upregulates the expression of PPARalpha and uncoupling protein in diet-induced obese mice[J].The Journal of Nutrition, 2010, 140(3):496-500.

[21] KLUESS J W, KAHLERT S, KRVGER J, et al.Postweaning development of porcine small intestinal morphology and epithelial cell proliferation[J].Journal of Animal Science, 2016, 94(Suppl.3):416-422.
[22] 任曼, 杨亚南, 赵春芳, 等.异亮氨酸调控大鼠小肠黏膜形态和结构的作用机制[J].科学通报, 2022, 67(6):520-527. REN M, YANG Y N, ZHAO C F, et al.The regulatory mechanism of isoleucine on the mucosal morphology and structure of rat intestine[J].Chinese Science Bulletin, 2022, 67(6):520-527.(in Chinese)
[23] AZZAM M M M, ZOU X T, DONG X Y, et al.Effect of supplemental
L-threonine on mucin 2 gene expression and intestine mucosal immune and digestive enzymes activities of laying hens in environments with high temperature and humidity[J].Poultry Science, 2011, 90(10):2251-2256.

[24] DONG X Y, AZZAM M M M, ZOU X T.Effects of dietary
L-isoleucine on laying performance and immunomodulation of laying hens[J].Poultry Science, 2016, 95(10):2297-2305.

[25] WILS-PLOTZ E L, JENKINS M C, DILGER R N.Modulation of the intestinal environment, innate immune response, and barrier function by dietary threonine and purified fiber during a coccidiosis challenge in broiler chicks[J].Poultry Science, 2013, 92(3):735-745.

[26] WHEELOCK E F, SIBLEY W A.Circulating virus, interferon and antibody after vaccination with the 17-D strain of yellow-fever virus[J].The New England Journal of Medicine, 1965, 273:194-198.
[27] FARRAR M A, SCHREIBER R D.The molecular cell biology of interferon-gamma and its receptor[J].Annual Review of Immunology, 1993, 11:571-611.
[28] SCHRODER K, HERTZOG P J, RAVASI T, et al.Interferon-gamma:an overview of signals, mechanisms and functions[J].Journal of Leukocyte Biology, 2004, 75(2):163-189.

[29] VOLK N, LACY B.Anatomy and physiology of the small bowel[J].Gastrointestinal Endoscopy Clinics of North America, 2017, 27(1):1-13.

[30] KONSTANTINOV S R, FAVIER C F, ZHU W Y, et al.Microbial diversity studies of the porcine gastrointestinal ecosystem during weaning transition[J].Animal Research, 2004, 53(4):317-324.

[31] 陈倬瑜, 吴家, 胡璇, 等.养殖水体中添加光合细菌对扬州鹅孵化性能、水体净化效率、盲肠微生物多样性的影响[J/OL].中国畜牧杂志:1-13[2022-05-28].https://kns.cnki.net/kcms/detail/detail.aspx?FileName=ZGXM20220422002&DbName=CAPJ2022.DOI:10.19556/j.0258-7033.20211217-04. CHEN Z Y, WU J, HU X, et al.Effects of adding photosynthetic bacteria to breeding water on the hatching performance, water purification efficiency and appendix microbial diversity of Yangzhou geese[J/OL].Chinese Journal of Animal Science:1-13[2022-05-28].https://kns.cnki.net/kcms/detail/detail.aspx?FileName=ZGXM20220422002&DbName=CAPJ2022.DOI:10.19556/j.0258-7033.20211217-04.(in Chinese)
[32] LU C C, WEI R X, DENG D H, et al.Effect of different types of sugar on gut physiology and microbiota in overfed goose[J].Poultry Science, 2021, 100(7):101208.
[33] LI M, ZHOU H L, PAN X Y, et al.Cassava foliage affects the microbial diversity of Chinese indigenous geese caecum using 16S rRNA sequencing[J].Scientific Reports, 2017, 7(1):45697.
[34] 黄萌, 曹立军, 李伟, 等.鹅肠道内容物纤维素酶活性的分段比较[J].当代畜牧, 2010(1):27-28. HUANG M, CAO L J, LI W, et al.Segmental comparison of cellulase activities in goose intestinal tract[J].Contemporary Animal Husbandry, 2010(1):27-28.(in Chinese)
[35] DESVAUX M, GUEDON E, PETITDEMANGE H.Cellulose catabolism by
Clostridium cellulolyticum growing in batch culture on defined medium[J].Applied and Environmental Microbiology, 2000, 66(6):2461-2470.

[36] JIANG D L, LIU L, WANG C L, et al.Raising on water stocking density reduces geese reproductive performances via water bacteria and lipopolysaccharide contaminations in"geese-fish"production system[J].Agricultural Sciences in China, 2011, 10(9):1459-1466.

[37] STAPPENBECK T S, HOOPER L V, GORDON J I.Developmental regulation of intestinal angiogenesis by indigenous microbes via Paneth cells[J].Proceedings of the National Academy of Sciences of the United States of America, 2002, 99(24):15451-15455.

[38] KAJANDER K, MYLLYLUOMA E, KYRÖNPALO S, et al.Elevated pro-inflammatory and lipotoxic mucosal lipids characterise irritable bowel syndrome[J].World Journal of Gastroenterology, 2009, 15(48):6068-6074.