Nutritional status of gilts exerts a critical influence on reproductive function. onset of first estrus is closely related to dietary energy levels. The attainment of a minimum threshold for body fat is necessary for puberty onset. Efficiently satisfied dietary energy needs for replacement gilts through scientific nutritional regulatory measures is a basic factor to ensure normal onset of first estrus and breeding cycle. To provide some references for nutritional regulatory technologies of onset of first estrus for replacement gilts, the paper mainly reviewed the effects of dietary energy status on estrus of gilts and related mechanisms, through introducing the mechanisms of estrus and focusing on the regulation of dietary energy sources and levels.［Chinese Journal of Animal Nutrition， 2011， 23（6）：914 -918］
［1］王若军，译.公猪与母猪的营养[M].北京:中国农业大学出版社,2003.
[2]AGMO A. Sexual motivation-an inquiry into events determining the occurrence of sexual behavior [J]. Behavioural Brain Research, 1999, 105:129-150.
[3]FRYE C, SELIGAA A. Olanzapine and progesterone have dose-dependent and additive effects to enhance lordosis and progestin concentrations of rats [J]. Physiology & Behavior, 2002, 76:151-158.
[4]HENSON M C, CASTRACANE V D, O’NEIL J S, et al. Serum leptin concentrations and expression of leptin transcripts inplacental trophoblast with advancing baboon pregnancy[J]. Journal of Clinical Endocrinology and Metabolism, 1999, 84:2543-2549.
[5]杨增明,孙青原,夏国良.生殖生物学[M].北京:科学出版社,2005:441-443.
[6]ROZCBOOM D W, MOSER R L , CORNELIUD S G, et al. Body composition of postpubertal gilts at nutritionally induced anestrus[J]. Journal of Animal Science, 1993, 71:426-435.
[7]周平,吴德,周东胜,等.能量水平及来源对后备母猪体成分、初情日龄和发情表现的影响[J].动物营养学报,2009,21(2):123-129.
[8]TUMMARUK P, TANTASUPARUK W, TECHAKUMPHU M, et al. The association between growth rate, body weight, backfat thickness and age at first observed oestrus in crossbred Landrace×Yorkshire gilts[J]. Animal Reproduction Science, 2009, 110:108-122.
[9]陈方琴.后备母猪背膘厚与初情期的关系[J].养猪,2007(6):17.
[10]TUMMARUK P, TANTASUPARUK W, TECHAKUMPHU M, et al. Age, body weight and backfat thickness at first observed oestrus in crossbred Landrace×Yorkshire gilts, seasonal variations and their influence on subsequence reproductive performance[J]. Animal Reproduction Science, 2007, 99:167-181.
[11]GAUGHAN J B, CAMERON R D, DRYDEN G M, et al. Effect of body composition at selection on reproductive development in large white gilts[J]. Journal of Animal Science, 1997, 75:1764-1772.
[12]ELIASSON L, RYDHMER L, EINARSSON S, et al. Relationships between puberty and production traits in the gilt.1. Age at puberty[J]. Animal Reproduction Science, 1991, 25:143-154.
[13]AMARAL FILHA W S, BERNARDI M L, WENTZ I, et al. Reproductive performance of gilts according to growth rate and backfat thickness at mating[J]. Animal Reproduction Science, 2010, 121:139-144.
[14]汪超,龙定彪,刘雪芹,等.后备荣昌母猪适宜消化能和赖氨酸需要量研究[J].中国畜牧杂志,2010,46(21):33-37.
[15]HE D, FUNABASHI T, SANO A, et al. Effects of glucose and related substrates on the recovery of the electrical activity of gonadotropin-releasing hormone pulse generator which is decreased by insulin-induced hypoglycemia in the estrogen-primed ariectomized rat[J]. Brain Research, 1999, 820:71-76.
[16]LONGO K M, SUN Y, GORE A C. Insulin-like growth factor-I effects on gonadotropin-releasing hormone biosynthesis in GT1-7 cells[J]. Endocrinology, 1998, 139:125-132.
[17]周东胜,吴德,卓勇,等.能量水平和来源对后备母猪血液代谢产物、激素分泌及卵泡液成分的影响[J].畜牧兽医学报,2009,40(5):683-690.
[18]EVANS A C O, O’DOHERTY J V. Endocrine changes and management factors affecting puberty in gilts[J]. Livestock Production Science, 2001, 68:1-12.
[19]刘立文,于淼瑛,周虚.日粮能量对初情期前母猪外周血清FSH、LH释放的影响[J].中国兽医学报,2007,27(6):879-881.
[20]PRALONG F P. Insulin and NPY pathways and the control of GnRH function and puberty onset[J]. Molecular and Cellular Endocrinology, 2010, 324:82-86.
[21]ZHANG Y, PROENCA R, MAFFEI M, et al. Positional cloning of the mouse obese gene and its human homologue[J]. Nature, 1994, 372:425-432.
[22]周东胜.能量水平和来源对后备母猪血液代谢底物、激素分泌及卵泡液微环境的影响[D].硕士学位论文.雅安:四川农业大学,2008.
[23]BARB C R, HAUSMAN G J, CZAJA K. Leptin: a metabolic signal affecting central regulation of reproduction in the pig[J]. Domestic Animal Endocrinology, 2005, 29:186-192.
[24]GAMBA M, PRALONG F P. Control of GnRH neuronal activity by metabolic factors: the role of leptin and insulin[J]. Molecular and Cellular Endocrinology, 2006, 254-255:133-139.
[25]STERNING M, RYDHMER L, ELIASSON-SELLING L. Relationships between age at puberty and interval from weaning to estrus and between estrus signs at puberty and after the first weaning in pigs[J]. Journal of Animal Science, 1998, 76:353-359.
[26]BUTLER W R. Nutritional interactions with reproductive performance in dairy cattle[J]. Animal Reproduction Science, 2000, 60/61:449-457.
[27]王延忠,吴德,徐盛玉,等.能量水平和来源对后备母猪卵母细胞质量及相关基因表达的影响[J].畜牧兽医学报,2008,39(12):1671-1678.
[28]周虚,于淼瑛,刘立文,等.能量对初情期前母猪卵巢LHR和FSHRmRNA表达的影响[J].中国兽医学报,2009,29(1):97-105.
[29]李波,张贺,张晶,等.能量对初情期前母猪卵巢和子宫IGF-1R和EGFRmRNA表达的影响[J].农业生物技术学报,2008,16(2):225-229.
[30]KEMP B, SOEDE N M , HELMOND F A. Effects of energy source in the diet on reproductive hormones and insulin during lactation and subsequent estrus in multiparous sows [J]. Journal of Animal Science, 1995b, 73:3022-3029.
京公网安备 11010802041926号