1Zhang Y, Proenea R, Maffei M, et al. Positional cloning of the mouse obese gene and its human homologue [J]. Nature , 1994,372: 425~432
2Ramsay T G, Yan X and Morrison C. The obesity gene in swine:sequence expression of Leptin [J]. J Anim Sci., 1998 , 76:484~ 490
3Butte NF, Hopkinson JM and Nicolson MA. Leptin in human repro duction: serum leptin levels in pregnant and lactating women [J]. J Clin Endocrino Metab, 1997, 82(2): 585~589
4Smith - Kirwin SM, O Connor DM, De Johnston J, et al. Leptin expression in human mammary epithelial cells and breast milk[J]. J Clin Endocrino Metab, 1998, 83(5):1810~1813
5Bado A, Levasseur S, Attoub S, et al. The stomach is a source ofleptin [J]. Nature, 1998, 394:790~793
6Aoki N, Kawamura M, Matsuda T. Lactatiorr dependent down reg ulation of leptin production in mouse mammary gland [J]. Biochim Biophys Acta, 1999, 1427 (2) : 298~306
7Tartaglia L, Dmbski M, Wang X, et al. Identification and expres sion cloning of a leptin receptors[J]. Cell, 1995, 83: 1263~1271
8Chen H, Charlat O, Tartaglia LA, et al. Evidence that the diabetes gene encodes the leptin receptor: identification of a mutation in the leptin receptor gene in db/db mice[J]. Cell, 1996, 84:491~495
9Fan W, Boston B, Kesterson R, et al. Role of melanocortinergic neurous in feeding and the agouti obesity syndrome. Nature [J], 1997, 385:165~168
10Huszar D, Lynch C, Victoria F, et al. Targeted disruption of the melanocortin- 4 receptor result in obesity in mice[J]. Cell, 1997. 88:131~134
3Houseknecht K L,Baile C A,Matteri R L,Spurlock M E.The biology of leptin:a review.Journal of Animal Science,1998,76:1405-1420.
4Barb C R,Yan X,Azain M J,Kraeling R R,Rampacek G B,Ramsay T G.Recombinant porcine leptin reduces feed intake and stimulates growth hormone secretion in swine.Domestic Animal Endocrinology,1998,15(1):77-86.
5Martin J L,Rasby R J,Brink D R,Lindquist R U,Keisler D H,Kachman S D.Effects of supplementation of whole corn germ on reproductive performance,calf performance,and leptin concentration in primiparous and mature beef cows.Journal of Dairy Science,2005,83:2663-2670.
6Adamiak S J,Mackie K,Watt R G,Webb R,Sinclair K D.Impact of nutrition on oocyte quality:cumulative effects of body composition and diet leading to hyperinsulinemia in cattle.Biology of Reproduction,2005,73:918-926.
7Rerat M,Zbinden Y,Saner R,Hammon H,Blum J W.In vitro embryo production:growth performance,feed efficiency,and hematological,metabolic,and endocrine status in calves.Journal of Dairy Science,2005,88:2579-2593.
8Kadokawa H,Martin G B.A new perspective on management of reproduction in dairy cows:the need for detailed metabolic information,an improved selection index and extended lactation.The Journal of Reproduction and Development,2006,52(1):161-168.
9Ehrhardt R A.Analysis of leptin and leptin receptor mRNA expression in the sheep placenta.Journal of Animal Science,2000,77:159.
10Delavaud C,Ferlay A,Faulconnier Y,Bocquier F,Kann G,Chilliard Y.Plasma leptin concentration in adult cattle:Effect of breed,adiposity,feeding level,and meal intake.Journal of Animal Science,2002,80:1317-1328.