References

Ahmed Ebbiary, N. A., Lenton, E. A., and Cooke, I. D. (1994). Hypothalamic–pituitary ageing: progressive increase in FSH and LH concentrations throughout the reproductive life in regularly menstruating women. Clin. Endocrinol. 41, 199–206.
| CrossRef |

Amsterdam, A., Hanoch, T., Dantes, A., Tajima, K., Strauss, J. F., and Seger, R. (2002). Mechanisms of gonadotrophin desensitization. Mol. Cell. Endocrinol. 187, 69–74.
| CrossRef | PubMed |

Barker, D. J. (1992). The effect of nutrition of the fetus and neonate on cardiovascular disease in adult life. Proc. Nutr. Soc. 51, 135–144.
| CrossRef | PubMed |

Bartlett, P. C., Miller, G. Y., Anderson, C. R., and Kirk, J. H. (1990). Milk production and somatic cell count in Michigan dairy herds. J. Dairy Sci. 73, 2794–2800.
| CrossRef | PubMed |

Basir, G. S., O, W.-S., So, W. W. K., Ng, E. H. Y., and Ho, P. C. (2002). Evaluation of cycle-to-cycle variation of endometrial responsiveness using transvaginal sonography in women undergoing assisted reproduction. Ultrasound Obstet. Gynecol. 19, 484–489.
| CrossRef | PubMed |

Beckers, N. G. M., Macklon, N. S., Eijkemans, M. J. C., and Fauser, B. C. J. M. (2002). Women with regular menstrual cycles and a poor response to ovarian hyperstimulation for in vitro fertilization exhibit follicular phase characteristics suggestive of ovarian aging. Fertil. Steril. 78, 291–297.
| CrossRef | PubMed |

Bettegowda, A., Patel, O. V., Ireland, J. J., and Smith, G. W. (2006). Quantitative analysis of messenger RNA abundance for ribosomal protein L-15, cyclophilin-A, phosphoglycerokinase, glucuronidase, glyceraldehyde 3-phosphate dehydrogenase, β-actin and histone H2A during bovine oocyte maturation and early embryogenesis in vitro. Mol. Reprod. Dev. 73, 267–278.
| CrossRef | PubMed |

Bettegowda, A., Patel, O. V., Lee, K.-B., Park, K.-E., Salem, M., Yao, J., Ireland, J. J., and Smith, G. W. (2008). Identification of novel bovine cumulus cell molecular markers predictive of oocyte competence: functional and diagnostic implications. Biol. Reprod. 79, 301–309.
| CrossRef | PubMed |

Black, J. L., and Erickson, B. H. (1968). Oogenesis and ovarian development in the prenatal pig. Anat. Rec. 161, 45–55.
| CrossRef | PubMed |

Block, E. (1951). Quantitative morphological investigations of the follicular system in women. Acta Endocrinol. 8, 33–54.
| PubMed |

Block, E. (1952). Quantitative morphological investigation of the follicular systen in women. Acta Anat. 14, 108–123.
| CrossRef |

Block, E. (1953). A quantitative morphological investigation of the follicular system in newborn female infants. Acta Anat. 17, 201–206.
| CrossRef |

Blondin, P., Coenen, K., Guilbault, L. A., and Sirard, M.-A. (1996). Superovulation can reduce the developmental competence of bovine embryos. Theriogenology 46, 1191–1203.
| CrossRef | PubMed |

Borwick, S. C., Rhind, S. M., McMillen, S. R., and Racey, P. A. (1997). Effect of undernutrition of ewes from the time of mating on fetal ovarian development in mid-gestation. Reprod. Fertil. Dev. 9, 711–715.
| CrossRef | PubMed |

Bourdon, R. M., and Brinks, J. S. (1986). Scrotal circumference in yearling Hereford bulls: adjustment factors, heritabilities and genetic, environmental and phenotypic relationships with growth traits. J. Anim. Sci. 62, 958–967.
| PubMed |

Burns, D. S., Jimenez-Krassel, F. J., Ireland, J. L. H., Knight, P. G., and Ireland, J. J. (2005). Numbers of antral follicles during follicular waves in cattle: evidence for high variation among animals, very high repeatability in individuals, and an inverse association with serum follicle-stimulating hormone concentrations. Biol. Reprod. 73, 54–62.
| CrossRef | PubMed |

Caraviello, D. Z., Weigel, K. A., Shook, G. E., and Ruegg, P. L. (2005). Assessment of the impact of somatic cell count on functional longevity in Holstein and Jersey cattle using survival analysis methodology. J. Dairy Sci. 88, 804–811.
| CrossRef | PubMed |

Caraviello, D. Z., Weigel, K. A., Fricke, P. M., Wiltbank, M. C., Florent, M. J., Cook, N. B., Nordlund, K. V., Zwald, N. R., and Rawson, C. L. (2006). Survey of management practices on reproductive performance of dairy cattle on large US commercial farms. J. Dairy Sci. 89, 4723–4735.
| CrossRef | PubMed |

Cerchiaro, I., Cassandro, M., Dal Zotto, R., Carnier, P., and Gallo, L. (2007). A field study on fertility and purity of sex-sorted cattle sperm. J. Dairy Sci. 90, 2538–2542.
| CrossRef | PubMed |

Chebel, R. C., Braga, F. A., and Dalton, J. C. (2007). Factors affecting reproductive performance of Holstein heifers. Anim. Reprod. Sci. 101, 208–224.
| CrossRef | PubMed |

Conti, M., Harwood, J. P., Hsueh, A. J., Dufau, M. L., and Catt, K. J. (1976). Gonadotrophin-induced loss of hormone receptors and desensitization of adenylate cyclase in the ovary. J. Biol. Chem. 251, 7729–7731.
| PubMed |

Coulter, G. H., and Foote, R. H. (1979). Bovine testicular measurements as indicators of reproductive performance and their relationship to productive traits in cattle: a review. Theriogenology 11, 297.
| CrossRef | PubMed |

Cushman, R. A., DeSouza, J. C., Hedgpeth, V. S., and Britt, J. H. (1999). Superovulatory response of one ovary is related to the micro- and macroscopic population of follicles in the contralateral ovary of the cow. Biol. Reprod. 60, 349–354.
| CrossRef | PubMed |

Daily, C. A., Laurent, S. L., and Nunley, W. C., Jr (1994). The prognostic value of serum progesterone and quantitative β-human chorionic gonadotrophin in early human pregnancy. Am. J. Obstet. Gynecol. 171, 380–384.
| PubMed |

Da Silva, P., Aitken, R. P., Rhind, S. M., Racey, P. A., and Wallace, J. M. (2002). Impact of maternal nutrition during pregnancy on pituitary gonadotrophin gene expression and ovarian development in growth-restricted and normally grown late gestation sheep fetuses. Reproduction 123, 769–777.
| CrossRef | PubMed |

de Boo, H. A., and Harding, J. E. (2006). The developmental origins of adult disease (Barker) hypothesis. Aust. N. Z. J. Obstet. Gynaecol. 46, 4–14.
| CrossRef | PubMed |

De Vries, A., Overton, M., Fetrow, J., Leslie, K., Eicker, S., and Rogers, G. (2008). Exploring the impact of sexed semen on the structure of the dairy industry. J. Dairy Sci. 91, 847–856.
| CrossRef | PubMed |

Diskin, M. G., and Morris, D. G. (2008). Embryonic and early foetal losses in cattle and other ruminants. Reprod. Domest. Anim. 43, 260–267.
| CrossRef | PubMed |

Elson, J., Salim, R., Tailor, A., Banerjee, S., Zosmer, N., and Jurkovic, D. (2003). Prediction of early pregnancy viability in the absence of an ultrasonically detectable embryo. Ultrasound Obstet. Gynecol. 21, 57–61.
| CrossRef | PubMed |

Eppig, J. J., O’Brien, M. J., Pendola, F. L., and Watanabe, S. (1998). Factors affecting the developmental competence of mouse oocytes grown in vitro: follicle-stimulating hormone and insulin. Biol. Reprod. 59, 1445–1453.
| CrossRef | PubMed |

Erickson, B. H. (1966a). Development and radio-response of the prenatal bovine ovary. J. Reprod. Fertil. 11, 97–105.
| CrossRef |

Erickson, B. H. (1966b). Development and senescence of the postnatal bovine ovary. J. Anim. Sci. 25, 800–805.
| PubMed |

Erickson, B. H., Reynolds, R. A., and Murphree, R. L. (1976). Ovarian characteristics and reproductive performance of the aged cows. Biol. Reprod. 15, 555–560.
| CrossRef | PubMed |

Faddy, M. J. (2000). Follicle dynamics during ovarian ageing. Mol. Cell. Endocrinol. 163, 43–48.
| CrossRef | PubMed |

Faddy, M. J., and Gosden, R. G. (1996). A model conforming the decline in follicle numbers to the age of menopause in women. Hum. Reprod. 11, 1484–1486.
| PubMed |

Fanchin, R., Taieb, J., Lozano, D. H. M., Ducot, B., Frydman, R., and Bouyer, J. (2005). High reproducibility of serum anti-Müllerian hormone measurements suggests a multi-staged follicular secretion and strengthens its role in the assessment of ovarian follicular status. Hum. Reprod. 20, 923–927.
| CrossRef | PubMed |

Freeman, A. E. (1984). Secondary traits: sire evaluation and the reproductive complex. J. Dairy Sci. 67, 449–458.
| CrossRef | PubMed |

Gardner, D. S., Ozanne, S. E., and Sinclair, K. D. (2009). Effect of the early-life nutritional environment on fecundity and fertility of mammals. Philos. Trans. R. Soc. Lond. B. Biol. Sci. 364, 3419–3427.
| CrossRef | PubMed |

Gluckman, P. D., and Hanson, M. A. (2004). Living with the past: evolution, development and patterns of disease. Science 305, 1733–1736.
| CrossRef | PubMed |

Green, M. J., Green, L. E., Schukken, Y. H., Bradley, A. J., Peeler, E. J., Barkema, H. W., de Haas, Y., Collis, V. J., and Medley, G. F. (2004). Somatic cell count distributions during lactation predict clinical mastitis. J. Dairy Sci. 87, 1256–1264.
| CrossRef | PubMed |

Haughian, J. M., Ginther, O. J., Kot, K., and Wiltbank, M. C. (2004). Relationship between FSH patterns and follicular dynamics and the temporal associations among hormones in natural and GnRH-induced gonadotrophin surges in heifers. Reproduction 127, 23–33.
| CrossRef | PubMed |

Hehenkamp, W. J. K., Looman, C. W. N., Themmen, A. P. N., de Jong, F. H., te Velde, E. R., and Broekmans, F. J. M. (2006). Anti-Müllerian hormone levels in the spontaneous menstrual cycle do not show substantial fluctuation. J. Clin. Endocrinol. Metab. 91, 4057–4063.
| CrossRef | PubMed |

Hohenboken, W. D. (1999). Applications of sexed semen in cattle production. Theriogenology 52, 1421–1433.
| CrossRef | PubMed |

Hunter, J. (1787). An experiment to determine the effect of extirpating one ovarium upon the number of young produced. Philos. Trans. R. Soc. Lond. A 77, 233–239.
| CrossRef |

Ibáñez, L., Potau, N., Enriquez, G., Marcos, M. V., and de Zegher, F. (2003). Hypergonadotrophinaemia with reduced uterine and ovarian size in women born small-for-gestational-age. Hum. Reprod. 18, 1565–1569.
| CrossRef | PubMed |

Inskeep, E. K. (2004). Preovulatory, postovulatory, and postmaternal recognition effects of concentrations of progesterone on embryonic survival in the cow. J. Anim. Sci. 82, E24–E39.
| PubMed |

Ireland, J. J., Mihm, M., Austin, E., Diskin, M. G., and Roche, J. F. (2000). Historical perspective of turnover of dominant follicles during the bovine oestrous cycle: key concepts, studies, advancements and terms. J. Dairy Sci. 83, 1648–1658.
| CrossRef | PubMed |

Ireland, J. J., Ward, F., Jimenez-Krassel, F., Ireland, J. L. H., Smith, G. W., Lonergan, P., and Evans, A. C. O. (2007). Follicle numbers are highly repeatable within individual animals but are inversely correlated with FSH concentrations and the proportion of good-quality embryos after ovarian stimulation in cattle. Hum. Reprod. 22, 1687–1695.
| CrossRef | PubMed |

Ireland, J. L. H., Scheetz, D., Jimenez-Krassel, F., Themmen, A. P. N., Ward, F., Lonergan, P., Smith, G. W., Perez, G. I., Evans, A. C. O., and Ireland, J. J. (2008). Antral follicle count reliably predicts number of morphologically healthy oocytes and follicles in ovaries of young adult cattle. Biol. Reprod. 79, 1219–1225.
| CrossRef | PubMed |

Ireland, J. J., Zielak, A. E., Jimenez-Krassel, F., Folger, J., Bettegowda, A., et al. (2009). Variation in the ovarian reserve is linked to alterations in intrafollicular oestradiol production and ovarian biomarkers of follicular differentiation and oocyte quality in cattle. Biol. Reprod. 80, 954–964.
| CrossRef | PubMed |

Ireland J. J., Scheetz D., Jimenez F., Folger J. K., Smith G. W., Mossa F., and Evans A. C. O. (2010). Evidence that mammary gland infection/injury during pregnancy in dairy cows may have a negative impact on size of the ovarian reserve in their daughters In ‘43rd Annual Meeting for the Society for Study of Reproduction’. (Society for Study of Reproduction/HighWire Press: Milwaukee, USA.)

Jimenez-Krassel, F., Folger, J., Ireland, J. L. H., Smith, G. W., Hou, X., Davis, J. S., Lonergan, P., Evans, A. C. O., and Ireland, J. J. (2009). Evidence that high variation in ovarian reserves of healthy young adults has a negative impact on the corpus luteum and endometrium during reproductive cycles of single-ovulating species. Biol. Reprod. 80, 1272–1281.
| CrossRef | PubMed |

Kawamata, M. (1994). Relationship between the number of small follicles prior to superovulatory treatment and superovulatory response in Holstein cows. J. Vet. Med. Sci. 56, 965–967.
| PubMed |

Keeton, L. L., Green, R. D., Golden, B. L., and Anderson, K. J. (1996). Estimation of variance components and prediction of breeding values for scrotal circumference and weaning weights in Limousin cattle. J. Anim. Sci. 74, 31–36.
| PubMed |

Kevenaar, M. E., Meerasahib, M. F., Kramer, P., van de Lang-Born, B. M. N., de Jong, F. H., Groome, N. P., Themmen, A. P. N., and Visser, J. A. (2006). Serum AMH levels reflect the size of the primordial follicle pool in mice. Endocrinology 147, 3228–3234.
| CrossRef | PubMed |

Klein, N. A., Battaglia, D. E., Clifron, D. K., Bremner, W. J., and Soules, M. R. (1996). The gonadotrophin secretion pattern in normal women of advanced reproductive age in relation to the monotropic FSH rise. J. Soc. Gynecol. Investig. 3, 27–32.
| CrossRef | PubMed |

Kriese, L. A., Bertrand, J. K., and Benyshek, L. L. (1991). Age adjustment factors, heritabilities and genetic correlations for scrotal circumference and related growth traits in Hereford and Brangus bulls. J. Anim. Sci. 69, 478–489.
| PubMed |

Kuhn, M. T., Hutchison, J. L., and Wiggans, G. R. (2006). Characterization of Holstein heifer fertility in the United States. J. Dairy Sci. 89, 4907–4920.
| CrossRef | PubMed |

La Marca, A., and Volpe, A. (2006). Anti-Müllerian hormone (AMH) in female reproduction: is measurement of circulating AMH a useful tool? Clin. Endocrinol. 64, 603–610.
| CrossRef |

La Marca, A., Stabile, G., Artenisio, A. C., and Volpe, A. (2006). Serum anti-Müllerian hormone throughout the human menstrual cycle. Hum. Reprod. 21, 3103–3107.
| CrossRef | PubMed |

Lehenbauer, T. W., and Oltjen, J. W. (1998). Dairy cow culling strategies: making economical culling decisions. J. Dairy Sci. 81, 264–271.
| CrossRef | PubMed |

Lonergan, P., Monaghan, P., Rizos, D., Boland, M., and Gordon, I. (1994). Effect of follicle size on bovine oocyte quality and developmental competence following maturation, fertilization and culture in vitro. Mol. Reprod. Dev. 37, 48–53.
| CrossRef | PubMed |

Lucy, M. C. (2001). Reproductive loss in high-producing dairy cattle: where will it end? J. Dairy Sci. 84, 1277–1293.
| CrossRef | PubMed |

Malhi, P. S., Adams, G. P., and Singh, J. (2005). Bovine model for the study of reproductive aging in women: follicular, luteal and endocrine characteristics. Biol. Reprod. 73, 45–53.
| CrossRef | PubMed |

Mann, G. E., and Lamming, G. E. (1999). The influence of progesterone during early pregnancy in cattle. Reprod. Domest. Anim. 34, 269–274.
| CrossRef |

Mcmillen, I. C., and Robinson, J. S. (2005). Developmental origins of the metabolic syndrome: prediction, plasticity, and programming. Physiol. Rev. 85, 571–633.
| CrossRef | PubMed |

McNatty, K. P., Smith, P., Hudson, N. L., Heath, D. A., Tisdall, D. J., O, W.-S., and Braw-Tal, R. (1995). Development of the sheep ovary during fetal and early neonatal life and the effect of fecundity genes. J. Reprod. Fertil. 49, 123–135.

McNeill, R. E., Diskin, M. G., Sreenan, J. M., and Morris, D. G. (2006). Associations between milk progesterone concentration on different days and with embryo survival during the early luteal phase in dairy cows. Theriogenology 65, 1435–1441.
| CrossRef | PubMed |

McTavish, K. J., Jimenez, M., Walters, K. A., Spaliviero, J., Groome, N. P., Themmen, A. P., Visser, J. A., Handelsman, D. J., and Allan, C. M. (2007). Rising follicle-stimulating hormone levels with age accelerate female reproductive failure. Endocrinology 148, 4432–4439.
| CrossRef | PubMed |

Moore, R. K., Kennedy, B. W., Schaeffer, L. R., and Moxley, J. E. (1990). Relationships between reproduction traits, age and body weight at calving, and days dry in first lactation Ayrshires and Holsteins. J. Dairy Sci. 73, 835–842.
| CrossRef | PubMed |

Mossa F., Kenny D., Jimenez-Krassel F., Smith G. W., Berry D., Butler S., Fair T., Lonergan P., Ireland J. J., and Evans A. C. O. (2009). Undernutrition of heifers during the first trimester of pregnancy diminishes size of the ovarian reserve in female offspring. In ‘42nd Annual Meeting of the Society for Study of Reproduction. Vol. Abstract 135, 81’. p. 135. (Society for Study of Reproduction/HighWire Press: Pittsburg, USA.)

Mossa, F., Jimenez-Krassel, F., Walsh, S., Berry, D. P., Butler, S., et al. (2010). The inherent capacity of the pituitary gland to produce gonadotrophins is not influenced by the number of ovarian follicles >3 mm in diameter in cattle. Reprod. Fertil. Dev. 22, 550–557.
| CrossRef | PubMed |

Ottolenghi, C., Uda, M., Hamatani, T., Crisponi, L., Garcia, J.-E., Ko, M., Pilia, G., Sforza, C., Schlessinger, D., and Forabosco, A. (2004). Aging of oocyte, ovary and human reproduction. Ann. N. Y. Acad. Sci. 1034, 117–131.
| CrossRef | PubMed |

Pezzullo J. C. (2009). Web site for Statistical Power Analysis: http://statpages.org/proppowr.html Accessed 4 December 2008.

Philipsson, J. (1981). Genetic aspects of female fertility in dairy cattle. Livest. Prod. Sci. 8, 307–319.
| CrossRef |

Piltonen, T., Morin-Papunen, L., Koivunen, R., Perheentupa, A., Ruokonen, A., and Tapanainen, J. S. (2005). Serum anti-Müllerian hormone levels remain high until late reproductive age and decrease during metformin therapy in women with polycystic ovary syndrome. Hum. Reprod. 20, 1820–1826.
| CrossRef | PubMed |

Pritts, E. A., and Atwood, A. K. (2002). Luteal phase support in infertility treatment: a meta-analysis of the randomized trials. Hum. Reprod. 17, 2287–2299.
| CrossRef | PubMed |

Raga, F., Bonilla-Musoles, F., Casan, E. M., Klein, O., and Bonilla, F. (1999). Assessment of endometrial volume by three-dimensional ultrasound prior to embryo transfer: clues to endometrial receptivity. Hum. Reprod. 14, 2851–2854.
| CrossRef | PubMed |

Reame, N. E., Kelch, R. P., Beitins, I. Z., Yu, M.-Y., Zawacki, C. M., and Padmanabhan, V. (1996). Age effects on follicle-stimulating hormone and pulsatile luteinizing hormone secretion across the menstrual cycle of premenopausal women. J. Clin. Endocrinol. Metab. 81, 1512–1518.
| CrossRef | PubMed |

Rico, C., Fabre, S., Medigue, C., Clemente, N. d., Clement, F., et al. (2009). Anti-Müllerian hormone is an endocrine marker of ovarian gonadotrophin-responsive follicles and can help to predict superovulatory responses in the cow. Biol. Reprod. 80, 50–59.
| CrossRef | PubMed |

Royal, M., Mann, G. E., and Flint, A. P. F. (2000). Strategies for reversing the trend towards subfertility in dairy cattle. Vet. J. 160, 53–60.
| CrossRef | PubMed |

Sartori, R., Rosa, G. J. M., and Wiltbank, M. C. (2002a). Ovarian structures and circulating steroids in heifers and lactating cows in summer and lactating and dry cows in winter. J. Dairy Sci. 85, 2813–2822.
| CrossRef | PubMed |

Sartori, R., Sartor-Bergfelt, R., Mertens, S. A., Guenther, J. N., Parrish, J. J., and Wiltbank, M. C. (2002b). Fertilization and early embryonic development in heifers and lactating cows in summer and lactating and dry cows in winter. J. Dairy Sci. 85, 2803–2812.
| CrossRef | PubMed |

Scheffer, G. J., Broekmans, F. J. M., Looman, C. W. N., Blankenstein, M., Fauser, B. C. J. M., De Jong, F. H., and te Velde, E. R. (2003). The number of antral follicles in normal women with proven fertility is the best reflection of reproductive age. Hum. Reprod. 18, 700–706.
| CrossRef | PubMed |

Singh, J., Dominguez, M., Jaiswal, R., and Adams, G. P. (2004). A simple ultrasound test to predict the superstimulatory response in cattle. Theriogenology 62, 227–243.
| CrossRef | PubMed |

Smith, B. A., Brinks, J. S., and Richardson, G. V. (1989). Estimation of genetic parameters among breeding soundness examination components and growth traits in yearling bulls. J. Anim. Sci. 67, 2892–2896.
| PubMed |

Steckler, T., Wang, J., Bartol, F. F., Roy, S. K., and Padmanabhan, V. (2005). Fetal programming: prenatal testosterone treatment causes intrauterine growth retardation, reduces ovarian reserve and increases ovarian follicular recruitment. Endocrinology 146, 3185–3193.
| CrossRef | PubMed |

Stringfellow D. A., and Seidel S. M. (Eds) (1998). ‘Manual of the International Embryo Transfer Society (IETS).’ 3rd edn. (International Embryo Transfer Society: Savoy, USA.)

Stronge, A. J. H., Sreenan, J. M., Diskin, M. G., Mee, J. F., Kenny, D. A., and Morris, D. G. (2005). Post-insemination milk progesterone concentration and embryo survival in dairy cows. Theriogenology 64, 1212–1224.
| CrossRef | PubMed |

Taneja, M., Bols, P. E., Van de Velde, A., Ju, J. C., Schreiber, D., Tripp, M. W., Levine, H., Echelard, Y., Riesen, J., and Yang, X. (2000). Developmental competence of juvenile calf oocytes in vitro and in vivo: influence of donor animal variation and repeated gonadotrophin stimulation. Biol. Reprod. 62, 206–213.
| CrossRef | PubMed |

te Velde, E. R., and Pearson, P. L. (2002). The variability of female reproductive ageing. Hum. Reprod. Update 8, 141–154.
| CrossRef | PubMed |

te Velde, E. R., Dorland, M., and Broekmans, F. J. (1998). Age at menopause as a marker of reproductive ageing. Maturitas 30, 119–125.
| CrossRef | PubMed |

van Rooij, I. A., Broekmans, F. J., te Velde, E. R., Fauser, B. C., Bancsi, L. F., de Jong, F. H., and Themmen, A. P. (2002). Serum anti-Müllerian hormone levels: a novel measure of ovarian reserve. Hum. Reprod. 17, 3065–3071.
| CrossRef | PubMed |

van Rooij, I. A. J., Broekmans, F. J. M., Scheffer, G. J., Looman, C. W. N., Habbema, J. D. F., de Jong, F. H., Fauser, B. J. C. M., Themmen, A. P. N., and te Velde, E. R. (2005). Serum anti-Müllerian hormone levels best reflect the reproductive decline with age in normal women with proven fertility: a longitudinal study. Fertil. Steril. 83, 979–987.
| CrossRef | PubMed |

Washburn, S. P., Silvia, W. J., Brown, C. H., McDaniel, B. T., and McAllister, A. J. (2002). Trends in reproductive performance in southeastern Holstein and Jersey DHI herds. J. Dairy Sci. 85, 244–251.
| CrossRef | PubMed |

Weigel, K. A. (2004). Exploring the role of sexed semen in dairy production systems. J. Dairy Sci. 87, E120–E130.
| CrossRef |

Weigel, K. A., Palmer, R. W., and Caraviello, D. Z. (2003). Investigation of factors affecting voluntary and involuntary culling in expanding dairy herds in Wisconsin using survival analysis. J. Dairy Sci. 86, 1482–1486.
| CrossRef | PubMed |