[1] MASAKA L,SUNGIRAI M,NYAMUKANZA C,et al.Sow removal in a commercial pig herd in Zimbabwe[J].Tropicol Animal Health and Production,2014,46:725-731. [2] KOKETSU Y,DIAL G D,KING V L.Returns to service after mating and removal of sows for reproductive reasons from commercial swine farms[J].Theriogenology,1997,47(7):1347-1363. [3] ZHAO Y X,LIU X H,MO D,et al.Analysis of reasons for sow culling and seasonal effects on reproductive disorders in Southern China[J].Animal Reproduction Science,2015,159:191-197. [4] SEGURA-CORREA J C,EK-MEX E,ALZINA-LOPEZ A,et al.Frequency of removal reasons of sows in Southeastern Mexico[J].Tropicol Animal Health and Production,2011,43:1583-1588. [5] BALOGH P,KAPELANSKI W,JANKOWIAK H,et al.The productive lifetime of sows on two farms from the aspect of reasons for culling[J].Annals of Animal Science, 2015,15(3):747-758. [6] SBARDELLA P E,ULGUIM R R,FONTANA D L,et al.The post-cervical insemination does not impair the reproductive performance of primiparous sows[J].Reproduction in Domestic Animals,2014,49(1):59-64. [7] JONG E D,APPELTANT R,COOLS A,et al.Slaughterhouse examination of culled sows in commercial pig herds[J].Livestock Science,2014,167:362-369. [8] KARVELIENE B,ZILINSKAS H,RISKEVICIENCE V.Post-mortem examination of sows genital organs culled for reproductive disturbances and immunohisto-chemical studies on ERalpha and PRA receptors in the anoestral sows uterus[J].Reproduction in Domestic Animals,2007,42(3):275-281. [9] XIE T T,YE W T,LIU J,et al.the emerging key role of klotho in the hypothalamus-pituitary-ovarian axis[J].Reproductive Sciences,2021,28:322-331. [10] PRUNIER A,QUESNEL H.Nutritional influences on the hormonal control of reproduction in female pigs[J].Livestock Production Science,2000,63(1):1-16. [11] YUAN X L,ZHANG Z,LI B,et al.Genome-wide DNA methylation analysis of the porcine hypothalamus-pituitary-ovary axis[J].Scientific Reports,2017,7(1):4277. [12] WANG H,LI X Y,ZHOU R Y,et al.Genome-wide transcriptome profile in ovaries of small-tail han sheep during the follicular and luteal phases of the oestorus cycle[J].Animal Reproduction Science,2018,197:212-221. [13] FERGANI C,NAVARRO V M.Expanding the role of tachykinins in the neuroendocrine control of reproduction[J].Reproduction,2016,153(1):1-14. [14] AVENDANO M S,VAZQUEZ M J,TENA-SEMPERE M.Disentangling puberty:Novel neuroen-docrine pathways and mechanisms for the control of mammalian puberty[J].Human Reproduction Update,2017,123(6):737-763. [15] CHENG G,COOLEN L M,PADMANABHAN V.The kisspeptin/neurokinin B/dynorphin (KNDy) cell population of the arcuate nucleus:Sex differences and effects of prenatal testosterone in sheep[J].Endocrinology,2010,151(1):301-311. [16] LEHMAN M N,COOLEN L M,GOODMAN R L.Minireview:Kisspeptin/neurokinin B/dynorphin (KNDy) cells of the arcuate nucleus:A central node in the control of gonadotropin-releasing hormone secretion[J].Endocrinology,2010,151:1479-1489. [17] MERKLEY C M,PORTER K L,COOLEN L M,et al.KNDy (kisspeptin/neurokinin B/dynorphin) neurons are activated during both pulsatile and surge secretion of LH in the ewe[J].Endocrinology,2012,11:5406-5414. [18] XU S Y,WANG D Y,ZHOU D S,et al.Reproductive hormone and transcriptomic responses of rituitary tissue in anestrus gilts induced by nutrient restriction[J].PLoS One,2015,10:e0143219. [19] ZHANG X D,HUANG L,WU T,et al.Transcriptomic analysis of ovaries from pigs with high and low litter size[J].PLoS One,2015,10:e0139514. [20] VON B E,DOBSON H,PRUNIER A.Stress,behaviour and reproductive performance in female cattle and pigs[J].Hormones & Behavior,2007,52(1):130-138. [21] CAMILA T,ERIK M,RENATO O,et al.Kisspeptin/GPR54 system:What do we know about its role in human reproduction[J].Cellular Physiology Biochemistry,2018,49(4):1259-1276. [22] MITTELMAN-SMITH M A,WILLIAMS H,KRAJEWSKI-HALL S J,et al.Arcuate kisspeptin/neurokinin B/dynorphin (KNDy) neurons mediate the estrogen suppression of gonadotropin secretion and body weight[J].Endocrinology,2012,153(6):2800-2812. [23] 杜旭旭,梅山,史远刚,等.Kisspeptin/GPR54在哺乳动物繁殖上的研究进展[J].畜牧兽医学报,2020,51(10):2341-2348. DU X X,MEI S,SHI Y G,et al.Research progress of Kisspeptin/GPR54 in mammalian reproduciton[J].Acta Veterinaria et Zootechnica Sinica,2020,51(10):2341-2348.(in Chinese) [24] LENTS C A,HEIDORN N L,BARB C R,et al.Central and peripheral administration of kisspeptin activates gonadotropin but not somatotropin secretion in prepubertal gilts[J].Reproduction,2008,135:879. [25] DECOURT C,ROBERT V,ANGER K,et al.A synthetic kisspeptin analog that triggers ovulation and advances puberty[J].Scientific Reports,2016,6:26908. [26] JAMES P G,KIM L K,STEPHANIE B S,et al.Role of kisspeptin and NKB in puberty in nonhuman primates:Sex differences[J].Seminars in Reproductive Medicine,2019,37(2):47-55. [27] GIANETTI E,TUSSET C,SEKONI D,et al. TAC3/TACR3 mutations reveal preferential activation of GnRH release by neurokinin B in neonatal life followed by reversal in adulthood[J].Endocrinology,2010,151(4):1970-1971. [28] NAKAMURA S,WAKABAYASHI Y,YAMAMURA T,et al.A neurokinin 3 receptor-selective agonist accelerates pulsatile luteinizing hormone secretion in lactating cattle[J].Biology of Reproduction,2017,97(1):81-90. [29] WANG C J,GAO F,HUANG Y J,et al.CircAKap17b acts as a miR-7 family molecular sponge to regulate FSH secretion in rat pituitary cellls[J].Journalof Molecular Endocrinology,2020,65(4):135-148. [30] PEREZ-CASTRO C,RENNER U,HAEDO M R,et al.Cellular and molecular specificity of pituitary gland physiology[J].Physiological Reviews,2012,92(1):1-38. [31] 付绍印,何小龙,王标,等.不同产糕数绵羊性腺轴比较转录组研究[J].中国畜牧兽医,2017,44(2):488-496. FU S Y,HE X L,WANG B,et al.Comparative transcriptome research of gonadal axis for different lambing number of sheep[J].China Animal Husbandry & Veterinary Medicine,2017,44(2):488-496.(in Chinese) [32] MAK P J,DUGGAL R,DENISOV I G,et al.The structural basis for compromised lyase activity with 17-hydroxyprogesterone[J].Journal of Amemrica Chemical Society,2018,140(23):7324-7331. [33] 吴庆华,信艳萍,张毅,等.17α-羟化酶/17,20-裂解酶缺陷症的诊断及治疗效果探讨[J].中华妇产科杂志,2015,2:140-143. WU Q H,XIN Y P,ZHANG Y,et al.Diagnosis and treatment of 17α-hydroxylase/17,20-lyase deficiency[J].Chinese Journal of Obstetrics and Gynecology,2015,2:140-143.(in Chinese) [34] LI Q Q,DU X,PAN Z X,et al.The transcription factor SMAD4 and miR-10b contribute to E2 release and cell apoptosis in ovarian granulosa cells by targeting CYP19A1[J].Molecular & Cellular Endocrinology,2018,476:84-95. [35] HUANG Q,LIU Y,YANG Z,et al.The effects of cholesterol metabolism on follicular development and ovarian function[J].Current Molecular Medicine,2019,19(10):719-730. [36] PORTEOUS R,HERBISON A E.Genetic deletion of ESR1 in the mouse preoptic area disrupts the LH surge and estrous cyclicity[J].Endocrinology,2019,160(8):1821-1829. [37] HEWITT S C,KORACH K S.Oestrogen receptor knockout mice:Roles for oestrogen receptors alpha and beta in reproductive tissues[J].Reproduction,2003,125(2):143-149. [38] NYNCA A,SADOWSKA A,ORLOWSKA K,et al.The effects of phytoestrogen genistein on steroidogenesis and estrogen receptor expression in porcine granulosa cells of large follicles[J].Folia Biologica,2015,63(2):119-128. [39] KEMPISTY B,ZIOLKOWSKA A,CIESIOLKA S,et al.Expression and cellular distribution of estrogen and progesterone receptors and the Real-time proliferation of porcine cumulus cells[J].Zygote,2015,23(6):836-845. |