[Adam C., Gadd T., Findlay P., Wathes D. (2000). IGF-Istimulation of luteinizing hormone secretion, IGF-binding proteins (IGFBPs) and expression of m RNAs for IGFs, IGFreceptors and IGFBPs in the ovine pituitary gland. J. Endocrinol., 166: 247-254.]Search in Google Scholar
[An X., Han P., Hou J., Zhao H., Yan Y., Ma T., Fang F., Meng F., Song Y., Wang J. (2013). Molecular cloning and characterization of KISS1 promoter and effect of KISS1 gene mutations on litter size in the goat. Genet. Mol. Res., 12: 4308-4316.]Search in Google Scholar
[An X.P., Hou J.X., Lei Y.N., Gao T.Y., Cao B.Y. (2015). Polymorphism and DNAmethylation in the promoter modulate KISS1 gene expression and are associated with litter size in goats. Anim. Reprod. Sci., 155: 36-41.]Search in Google Scholar
[Boom R., Sol C., Salimans M., Jansen C., Wertheim -van Dillen P., Vander Noordaa J. (1990). Rapid and simple method for purification of nucleic acids. J. Clin. Microbiol., 28: 495-503.]Search in Google Scholar
[Choudhary V., Kumar P., Bhattacharya T., Bhushan B., Sharma A., Shukla A. (2007). DNApolymorphism of insulin-like growth factor-binding protein-3 gene and its association with birth weight and body weight in cattle. J. Anim. Breed. Genet., 124: 29-34.]Search in Google Scholar
[Chu M., Li B., Wang J., Ye S., Fang L. (2004). Association between PCR-SSCPof growth differentiation factor 9 gene and high prolificacy in Small Tail Han sheep. Anim. Biotechnol., 15:111-120.]Search in Google Scholar
[Cruickshank J., Dentine M.R., Berger P.J., Kirkpatrick B.W. (2004). Evidence for quantitative trait loci affecting twinning rate in North American Holstein cattle. Anim. Genet., 35:206-212.]Search in Google Scholar
[Daughaday W.H., Rotwein P. (1989). Insulin-like growth factors Iand II. Peptide, messenger ribonucleic acid and gene structures, serum, and tissue concentrations. Endocr. Rev., 10: 68-91.]Search in Google Scholar
[Davis G.H. (2004). Fecundity genes in sheep. Anim. Reprod. Sci., 82-83: 247-253.]Search in Google Scholar
[Deng C., Ma R., Yue X., Lan X., Chen H., Lei C. (2010). Association of IGF-Igene polymorphisms with milk yield and body size in Chinese dairy goats. Genet. Mol. Biol., 33: 266-270.]Search in Google Scholar
[Denley A., Cosgrove L.J., Booker G.W., Wallace J.C., Forbes B.E. (2005). Molecular interactions of the IGFsystem. Cytokine Grow. Fact. Rev., 16: 421-439.]Search in Google Scholar
[Estany J., Tor M., Villalba D., Bosch L., Gallardo D., Jiménez N., Altet L., Noguera J.L., Reixach J., Amills M. (2007). Association of CArepeat polymorphism at intron 1 of insulin-like growth factor (IGF-I) gene with circulating IGF-Iconcentration, growth, and atness in swine. Physiol. Genomics, 31: 236-243.]Search in Google Scholar
[Ge W., Davis M.E., Hines H.C., Irvin K.M., Simmen R.C. (2001). Association ofagenetic arker with blood serum insulin-like growth factor-Iconcentration and growth traits in Angus cattle. J. Anim. Sci., 79: 1757-1762.]Search in Google Scholar
[Ghavi Hossein- Zadeh N., Nejati - Javaremi A., Miraei - Ashtiani S., Kohram H. (2008). An observational analysis of twin births, calf stillbirth, calf sex ratio, and abortion n Iranian Holsteins. J. Dairy Sci., 91: 4198-4205.]Search in Google Scholar
[Haegeman A., Van Zeveren A., Peelman L.J. (1999). Anew mutation in the bovine insulinlike growth factor binding protein-3. Anim. Genet., 30: 395-396.]Search in Google Scholar
[He J.N., Zhang B.Y., Chu M.X., Wang P.Q., Feng T., Cao G.L., Di R., Fang L., Huang D.W., Tang Q.Q., Li N. (2012). Polymorphism of insulin-like growth factor 1 gene and its association with litter size in Small Tail Han sheep. Mol. Biol. Rep., 39: 9801-9807.]Search in Google Scholar
[Johanson J.M., Bergert P.J., Kirkpatrick B.W., Dentine M.R. (2001). Twinning rates for North American Holstein sires. J. Dairy. Sci., 84: 2081-2088.]Search in Google Scholar
[Jones J.I., Clemmons D.R. (1995). Insulin-like growth factors and their binding proteins: biological actions. Endocr. Rev., 16: 3-34.]Search in Google Scholar
[Kappes S.M., Keele J.W., Stone R.T., Mc Graw R.A., Sonstegard T.S., Smith T.P., Lopez- Corrales N.L., Beattie C.W. (1997). Asecond-generation linkage map of the bovine genome. Genome Res., 7: 235-249.]Search in Google Scholar
[Kazemi S.M., Emrani H., Gharahveysi S. (2011). Study and identification of insulin -like growth factor-Igene polymorphisms in Zel sheep population. Am. J. Anim. Vet. Sci., 6:176-179.]Search in Google Scholar
[Kim E.S., Shi X., Cobanoglu O., Weigel K., Berger P., Kirkpatrick B. (2009). Refined mapping of twinning-rate quantitative trait loci on bovine chromosome 5 and analysis of insulin-like growth factor-1 asapositional candidate gene. J. Anim. Sci., 87: 835-843.]Search in Google Scholar
[Kim J., Yoon D., Park B., Kim L., Na K., Choi J., Cho C., Lee H., Chung E., Sang B. (2005). Identification of novel SNPs in bovine insulin-like growth factor binding protein-3 (IGFBP3) gene. Asian-Austral. J. Anim. Sci., 18: 3-7.]Search in Google Scholar
[Kosgey I.S., Van Arendonk J.A., Baker R.L. (2004). Economic values for traits in breeding objectives for sheep in the tropics: impact of tangible and intangible benefits. Livest. Prod. Sci., 88:143-160.]Search in Google Scholar
[Kostecka Z., Blahovec J. (2002). Animal insulin-like growth factor binding proteins and their biological functions. Vet. Med. Praha, 47: 75-84.]Search in Google Scholar
[Kumar P., Choudhary V., Padma B., Shukla A., Misra A., Bhattacharya T., Bhushan B., Sharma A. (2004). Buffalo insulin-like growth factor binding protein-3 (IGFBP-3) gene polymorphism and its comparison with cattle. Buffalo J., 20, p. 183.]Search in Google Scholar
[Kumar P., Choudhary V., Kumar K.G., Bhattacharya T., Bhushan B., Sharma A., Mishra A. (2006). Nucleotide sequencing and DNApolymorphism studies on IGFBP-3 gene in sheep and its comparison with cattle and buffalo. Small Rum. Res., 64: 285-292.]Search in Google Scholar
[Kurdistani Z.K., Rostamzadeh J., Rashidi A., Davis M. (2013). Evaluation of insulinlike growth factor-Igene polymorphism on growth traits and yearling fleece weight in goats. Small Rum. Res., 111: 10-15.]Search in Google Scholar
[Lan X., Pan C., Chen H., Lei C., Liu S., Zhang Y., Min L., Yu J., Li J., Zhao M. (2007 a). The Hae IIIand Xsp I PCR-RFLPs detecting polymorphisms at the goat IGFBP-3 locus. Small Rum. Res., 73: 283-286.10.1016/j.smallrumres.2007.01.001]Search in Google Scholar
[Lan X., Pan C., Chen H., Zhao M., Li J., Yu J., Zhang C., Lei C., Hua L., Yang X. (2007 b). The novel SNPs of the IGFBP3 gene and their associations with litter size and weight traits in goat (Brief report). Arch. Tierzucht, 50, p. 223.10.5194/aab-50-223-2007]Search in Google Scholar
[Li M., Li L., Min L., Wang J. (2008). Genetic analysis of IGFBP-3 gene and its association with economic traits in goats. Chin. J. Anim. Vet. Sci., 12, p. 003.]Search in Google Scholar
[Lien S., Karlsen A., Klemetsdal G., Vage D.I., Olsaker I., Klungland H., Aasland M., Heringstad B., Ruane J., Gomez- Raya L. (2000). Aprimary screen of the bovine genome for quantitative trait loci affecting twinning rate. Mamm. Genome., 11:877-882.]Search in Google Scholar
[Ligda C., Gabriilidis G., Papadopoulos T., Georgoudis A. (2000). Estimation of genetic parameters for production traits of Chios sheep usingamultitrait animal model. Livest. Prod. Sci., 66: 217-221.]Search in Google Scholar
[Liu H., Liu C., Yang G., Li H., Dai J., Cong Y., Li X. (2012). DNApolymorphism of insulinlike growth factor-binding protein-3 gene and its association with cashmere traits in Cashmere goats. Asian-Austral. J. Anim. Sci., 25: 1515-1520.]Search in Google Scholar
[Lucy M.C. (2000). Regulation of ovarian follicular growth by somatotropin and insulin-like growth factors in cattle. J. Dairy Sci., 83: 1635-1647.]Search in Google Scholar
[Maciulla J.H., Zhang H.M., De Nise S.K. (1997). Anovel polymorphism in the bovine insulinlike growth factor binding protein-3 (IGFBP3) gene. Anim. Genet., 28, p. 375.]Search in Google Scholar
[Maxa J., Norberg E., Berg P., Pedersen J. (2007). Genetic parameters for growth traits and litter size in Danish Texel, Shropshire, Oxford Down and Suffolk. Small Rum. Res., 68: 312-317.]Search in Google Scholar
[Mikawa S., Yoshikawa G., Aoki H., Yamano Y., Sakai H., Komano T. (1995). Dynamic aspects in the expression of the goat insulin-like growth factor-I (IGF-I) gene: diversity in transcription and post-transcription. Biosci. Biotech. Biochem., 59: 87-92.]Search in Google Scholar
[Nielen M., Schukken Y.H., Scholl D.T., Wilbrink H.J., Brand A. (1989). Twinning in dairy cattle: Astudy of risk factors and effects. Theriogenology, 32: 845-862.]Search in Google Scholar
[Othman O.E., Alam S.S., Abd El - Aziem S.H. (2014). Single nucleotide polymorphism in Egyptian cattle insulin-like growth factor binding protein-3 gene. J. Gene. Eng. Biotech., 12:143-147.]Search in Google Scholar
[Rao S., Notter D.R. (2000). Genetic analysis of litter size in Targhee, Suffolk, and Polypay sheep. J. Anim. Sci., 78: 2113-2120.]Search in Google Scholar
[Schlee P., Graml R., Schallenberger E., Schams D., Rottmann O., Olbrich - Bludau A., Pirchner F. (1994). Growth hormone and insulin-like growth factor Iconcentrations in bulls of various growth hormone genotypes. Theor. Appl. Genet., 88: 497-500.]Search in Google Scholar
[Sharma A., Dutt G., Sivalingam J., Singh M.K., Pathodiya O.P., Khadda B.S., Dixit S.P. (2014). Novel SNPs in IGF1, GHRand IGFBP-3 genes reveal significant association with growth traits in Indian goat breeds. Small Rum. Res., 115: 7-14.]Search in Google Scholar
[Sirotkin A.V., Chrenek P., Makarevich A., Huba J., Bulla J. (2000). Interrelationships between breed, growth hormone genotype, plasma IGF-Ilevel and meat performance in bulls of different ages. Arch. Tierzucht., 43: 591-596.]Search in Google Scholar
[Sun W., Chen H., Lei C., Zan L., Lei X., Li R., Chen H., Geng S. (2002). Polymorphism of insulin-like growth factor binding protein-3 gene and its relationship with beef performance of Qinchuan cattle. Anim. Biotech. Bull, 8: 95-99.]Search in Google Scholar
[Tahmoorespur M., Valeh M.V., Nassiry M.R., Moussavi A.H., Ansary M. (2009). Association of the polymorphism in the 5'-flanking region of the ovine IGF-Igene with growth traits in the Baluchi sheep. South Afr. J. Anim. Sci., 39: 97-101.]Search in Google Scholar
[Thomas N., Venkatachalapathy T., Aravindakshan T., Raghavan K.C. (2016). Molecular cloning, SNPdetection and association analysis of 5' flanking region of the goat IGF1 gene with prolificacy. Anim. Reprod. Sci., 167: 8-15.]Search in Google Scholar
[Thue T.D., Buchanan F.C. (2002). Anew polymorphism in the cattle IGFBP3 gene. Anim. Genet., 33, p. 242.]Search in Google Scholar
[Van Arendonk J., Tier B., Kinghorn B.P. (1994). Use of multiple genetic markers in prediction of breeding values. Genetics, 137: 319-329.]Search in Google Scholar
[Wang P.Q., Tan Y., Zhang B.Y., Chu M.X., Deng L.M., Fan Q., Liu C.X. (2011). DNA polymorphisms of 5′-flanking region of insulin-like growth factor 1 gene and their association with reproduction traits in goats. Agr. Sci. China, 10: 1609-1617.]Search in Google Scholar
[Wu - Jun L., Guang- Xin F., Yi F., Ke - Chuan T., Xi - Xia H., Xin- Kui Y., Mou W., Hui Y., Yong - Zhen H., Jing - Jing H., Ya - Ping X., Shi- Gang Y., Hong GH. (2010). The polymorphism ofamutation of IGF-1 gene on two goat breeds in China. J. Anim. Vet. Adv., 9:790-794]Search in Google Scholar
[Zhang C., Zhang W., Luo H., Yue W., Gao M., Jia Z. (2008). Anew single nucleotide polymorphism in the IGF-Igene and its association with growth traits in the Nanjiang Huang goat. Asian- Austral. J. Anim. 21: 1073-1079.]Search in Google Scholar
[Zi X.D., Mu X.K., Wang Y. (2013). Variation in sequences and m RNAexpression levels of growth hormone (GH): insulin-like growth factor I (IGF-I) and II (IGF-II) genes between prolific Lezhi black goat and non-prolific Tibetan goat (Capra hircus). Gen. Comp. Endocrinol., 187: 1-5.]Search in Google Scholar