Antral follicle population in prepubertal and pubertal heifers
M. M. Seneda A D , F. Morotti A , A. F. Zangirolamo A B , N. C. da Silva A , T. K. Sanches A , W. Blaschi C and T. R. R. Barreiros CA Universidade Estadual de Londrina, Laboratório de Reprodução Animal, Departamento de Clínicas Veterinárias – Centro de Ciências Agrárias – Universidade Estadual de Londrina, Londrina, Parana, Brazil.
B National Institute of Science and Technology for Dairy Production Chain (INCT–LEITE), Universidade Estadual de Londrina, Rodovia Celso Garcia Cid-Campus Universitário, PO Box 10011, Londrina, Parana 86057-970, Brazil.
C Universidade Estadual do Norte do Paraná, Laboratório de Biotecnologia da Reprodução Animal, Departamento de Veterinária e Produção Animal, Rodovia BR – 369, Km 54, Vila Maria, Bandeirantes, Parana 86360-000, Brazil.
D Corresponding author. Email: marcelo.seneda@uel.br
Reproduction, Fertility and Development 31(1) 10-16 https://doi.org/10.1071/RD18344
Published online: 3 December 2018
Abstract
The antral follicle count (AFC) is an important tool in the selection of bovine females destined for biotechnology. However, little is known about AFC in prepubertal and pubertal heifers. Some challenges inherent to the physiology of young females must be considered to achieve efficient rates with different procedures, such as ovum pick-up and IVF. This paper covers some important topics about ovarian physiology related to the population of antral follicles and reproductive efficiency in young female cattle.
Additional keywords : Bos indicus, Bos taurus, calf, embryo production.
References
Amstalden, M., Alves, B. R., Liu, S., Cardoso, R. C., and Williams, G. L. (2011). Neuroendocrine pathways mediating nutritional acceleration of puberty: insights from ruminant models. Front. Endocrinol. 2, 109.| Neuroendocrine pathways mediating nutritional acceleration of puberty: insights from ruminant models.Crossref | GoogleScholarGoogle Scholar |
Armstrong, D. T., Holm, P., Irvine, B., Petersen, B. A., Stubbings, R. B., McLean, D., Stevens, G., and Seamark, R. F. (1992). Pregnancies and live birth from in vitro fertilization of calf oocytes collected by laparoscopic follicular aspiration. Theriogenology 38, 667–678.
| Pregnancies and live birth from in vitro fertilization of calf oocytes collected by laparoscopic follicular aspiration.Crossref | GoogleScholarGoogle Scholar |
Atkins, J. A., Pohler, K. G., and Smith, M. F. (2013). Physiology and endocrinology of puberty in heifers. Vet. Clin. North Am. Food Anim. Pract. 29, 479–492.
| Physiology and endocrinology of puberty in heifers.Crossref | GoogleScholarGoogle Scholar |
Baruselli, P. S., Vieira, L. M., Guerreiro, B. M., Soares, J. G., Oliveira, T. F., and Freitas, B. G. (2014). Relationship between antral follicle population and pregnancy results following fixed-time AI in Nelore (Bos indicus) cows. In ‘Proceedings of the 28th Annual Meeting of the Brazilian Embryo Technology Society (SBTE), Natal, RN, Brazil. 14–17 August 2014. Animal Reproduction, 11, p.390. [Abstract]
Baruselli, P. S., Batista, E. O. S., Vieira, L. M., and Souza, A. H. (2015). Relationship between follicle population, AMH concentration and fertility in cattle. Anim. Reprod. 12, 487–497.
Baruselli, P. S., Batista, E. O. S., and Ferreira, R. M. (2016). Plasma anti-Müllerian hormone allows reproductive selection of donors with greater potential of embryo production. Sperm 6, 1–13.
Batista, E. O. S., Macedo, G. G., Sala, R. V., Ortolan, M., Sá Filho, M. F., Del Valle, T. A., Jesus, E. F., Lopes, R., Rennó, F. P., and Baruselli, P. S. (2014). Plasma antimullerian hormone as a predictor of ovarian antral follicular population in Bos indicus (Nelore) and Bos taurus (Holstein) heifers. Reprod. Domest. Anim. 49, 448–452.
| Plasma antimullerian hormone as a predictor of ovarian antral follicular population in Bos indicus (Nelore) and Bos taurus (Holstein) heifers.Crossref | GoogleScholarGoogle Scholar |
Batista, E. O. S., Guerreiro, B. M., Freitas, B. G., Silva, J. C. B., Vieira, L. M., Ferreira, R. M., Rezende, R. G., Basso, A. C., Lopes, R. N. V. R., Rennó, F. P., Souza, A. H., and Baruselli, P. S. (2016). Plasma anti-Müllerian hormone as a predictive endocrine marker to select Bos taurus (Holstein) and Bos indicus (Nelore) calves for in vitro embryo production. Domest. Anim. Endocrinol. 54, 1–9.
| Plasma anti-Müllerian hormone as a predictive endocrine marker to select Bos taurus (Holstein) and Bos indicus (Nelore) calves for in vitro embryo production.Crossref | GoogleScholarGoogle Scholar |
Black, J. L., and Erickson, B. H. (1968). Oogenesis and ovarian development in the prenatal pig. Anat. Rec. 161, 45–55.
| Oogenesis and ovarian development in the prenatal pig.Crossref | GoogleScholarGoogle Scholar |
Block, E. (1952). Quantitative morphological investigation of the follicular system in women. Acta Anat. (Basel) 14, 108–123.
| Quantitative morphological investigation of the follicular system in women.Crossref | GoogleScholarGoogle Scholar |
Boulton, A. C., Rushton, J., and Wathes, D. C. (2017). An empirical analysis of the cost of rearing dairy heifers from birth to first calving and the time taken to repay these costs. Animal 11, 1372–1380.
| An empirical analysis of the cost of rearing dairy heifers from birth to first calving and the time taken to repay these costs.Crossref | GoogleScholarGoogle Scholar |
Brickell, J. S., and Wathes, D. C. (2011). A descriptive study of the survival of Holstein Friesian heifers through to third calving on English dairy farms. J. Dairy Sci. 94, 1831–1838.
| A descriptive study of the survival of Holstein Friesian heifers through to third calving on English dairy farms.Crossref | GoogleScholarGoogle Scholar |
Brumatti, R. C., Ferraz, J. B. S., Eler, J. P., and Formigonni, I. B. (2011). Desenvolvimento de índice de seleção em gado de corte sob o enfoque de um modelo bioeconômico. Arch. Zootec. 60, 205–213.
| Desenvolvimento de índice de seleção em gado de corte sob o enfoque de um modelo bioeconômico.Crossref | GoogleScholarGoogle Scholar |
Burns, D. S., Jimenez-Krassel, F., 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.
| 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.Crossref | GoogleScholarGoogle Scholar |
Cate, R. L., Mattaliano, R. J., Hession, C., Tizard, R., Farber, N. M., Cheung, A., Ninfa, E. G., Frey, A. Z., Gash, D. J., Chow, E. P., Fisher, R. A., Bertonis, J. M., Torres, G., Wallner, B. P., Ramachandran, K. L., Ragin, R. C., Manganaro, T. F., MacLaughlin, D. T., and Donahoe, P. K. (1986). Isolation of the bovine and human genes for mullerian inhibiting substance and expression of the human gene in animal cells. Cell 45, 685–698.
| Isolation of the bovine and human genes for mullerian inhibiting substance and expression of the human gene in animal cells.Crossref | GoogleScholarGoogle Scholar |
Center, K., Dixon, D., Looney, C., and Rorie, R. (2018). Anti-Mullerian hormone and follicle counts as predictors of superovulatory response and embryo production in beef cattle. Adv. Reprod. Sci. 6, 22–23.
| Anti-Mullerian hormone and follicle counts as predictors of superovulatory response and embryo production in beef cattle.Crossref | GoogleScholarGoogle Scholar |
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.
| Superovulatory response of one ovary is related to the micro- and macroscopic population of follicles in the contralateral ovary of the cow.Crossref | GoogleScholarGoogle Scholar |
Cushman, R. A., Allan, M. F., Kuehn, L. A., Snelling, W. M., Cupp, A. S., and Freetly, H. C. (2009). Evaluation of antral follicle count and ovarian morphology in crossbred beef cows: investigation of influence of stage of the estrous cycle, age, and birth weight. J. Anim. Sci. 87, 1971–1980.
| Evaluation of antral follicle count and ovarian morphology in crossbred beef cows: investigation of influence of stage of the estrous cycle, age, and birth weight.Crossref | GoogleScholarGoogle Scholar |
Cushman, R. A., Perry, G. A., and Britt, J. H. (2018). Current understanding of factors influencing antral follicle count and applications to reproductive management in cattle. J. Anim. Sci. 96, 21–22.
| Current understanding of factors influencing antral follicle count and applications to reproductive management in cattle.Crossref | GoogleScholarGoogle Scholar |
de Paz, P., Sanchez, A. J., De La Fuente, J., Chamorro, C. A., Alvarez, M., Anel, E., and Anel, L. (2001). Ultrastructural and cytochemical comparison between calf and cow oocytes. Theriogenology 55, 1107–1116.
| Ultrastructural and cytochemical comparison between calf and cow oocytes.Crossref | GoogleScholarGoogle Scholar |
Eler, J. P., Silva, J. A., Feraz, J. B. S., Dias, F., Oliveira, H. N., Evans, J. L., and Golden, B. L. (2002). Genetic evaluation of the probability of pregnancy at 14 months for Nelore heifers. J. Anim. Sci. 80, 951–954.
| Genetic evaluation of the probability of pregnancy at 14 months for Nelore heifers.Crossref | GoogleScholarGoogle Scholar |
Erickson, B. H. (1966). Development and senescence of the postnatal bovine ovary. J. Anim. Sci. 25, 800–805.
| Development and senescence of the postnatal bovine ovary.Crossref | GoogleScholarGoogle Scholar |
Evans, A. C., Adams, G. P., and Rawlings, N. C. (1994). Endocrine and ovarian follicular changes leading up to the first ovulation in prepubertal heifers. J. Reprod. Fertil. 100, 187–194.
| Endocrine and ovarian follicular changes leading up to the first ovulation in prepubertal heifers.Crossref | GoogleScholarGoogle Scholar |
Evans, A. C. O., Mossa, F., Walsh, S. W., Scheetz, D., Jimenez-Krassel, F., Ireland, J. L. H., Smith, G. W., and Ireland, J. J. (2012). Effects of maternal environment during gestation on ovarian folliculogenesis and consequences for fertility in bovine offspring. Reprod. Domest. Anim. 47, 31–37.
| Effects of maternal environment during gestation on ovarian folliculogenesis and consequences for fertility in bovine offspring.Crossref | GoogleScholarGoogle Scholar |
Ferraz, M. V. C., Pires, A. V., Santos, M. H., Silva, R. G., Oliveira, G. B., Polizel, D. M., Biehl, M. V., Sartori, R., and Nogueira, G. P. (2018). A combination of nutrition and genetics is able to reduce age at puberty in Nelore heifers to below 18 months. Animal 12, 569–574.
| A combination of nutrition and genetics is able to reduce age at puberty in Nelore heifers to below 18 months.Crossref | GoogleScholarGoogle Scholar |
Foster, D. L., Jackson, L. M., and Padmanabhan, V. (2006). Programming of GnRH feedback controls timing puberty and adult reproductive activity. Mol. Cell. Endocrinol. 25, 254–255.
Gobikrushanth, M., Purfield, D. C., Colazo, M. G., Butler, S. T., Wang, Z., and Ambrose, D. J. (2018). The relationship between serum anti-Müllerian hormone concentrations and fertility, and genome-wide associations for anti-Müllerian hormone in Holstein cows. J. Dairy Sci. 101, 7563–7574.
| The relationship between serum anti-Müllerian hormone concentrations and fertility, and genome-wide associations for anti-Müllerian hormone in Holstein cows.Crossref | GoogleScholarGoogle Scholar |
Guerreiro, B. M., Batista, E. O. S., Vieira, L. M., Sá Filho, M. F., Rodrigues, C. A., Castro, A. N., Silveira, C. R. A., Bayeux, B. M., Dias, E. A. R., Monteiro, F. M., Accorsi, M., Lopes, R. N. V. R., and Baruselli, P. S. (2014). Plasma antimullerian hormone: an endocrine marker for in vitro embryo production from Bos taurus and Bos indicus donors. Domest. Anim. Endocrinol. 49, 96–104.
| Plasma antimullerian hormone: an endocrine marker for in vitro embryo production from Bos taurus and Bos indicus donors.Crossref | GoogleScholarGoogle Scholar |
Hansen, P. (2014). Current and future assisted reproductive technologies for mammalian farm animals. In ‘Current and Future Reproductive Technologies and World Food Production’. (Eds G. C. Lamb and N. DiLorenzo.) pp. 1–22. (CRC Press: New York.)
Haworth, G. M., Tranter, W. P., Chuck, J. N., Cheng, Z., and Wathes, D. C. (2008). Relationships between age at first calving and first lactation milk yield, and lifetime productivity and longevity in dairy cows. Vet. Rec. 162, 643–647.
| Relationships between age at first calving and first lactation milk yield, and lifetime productivity and longevity in dairy cows.Crossref | GoogleScholarGoogle Scholar |
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.
| 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.Crossref | GoogleScholarGoogle Scholar |
Ireland, J. L. H., Scheetz, D., Jimenez-Krasse, 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.
| Antral follicle count reliably predicts number of morphologically healthy oocytes and follicles in ovaries of young adult cattle.Crossref | GoogleScholarGoogle Scholar |
Ireland, J. J., Smith, G. W., Scheetz, D., Jimenez-Krassel, F., Folger, J. K., Ireland, J. L., Mossa, F., Lonergan, P., and Evans, A. C. (2011). Does size matter in females? An overview of the impact of the high variation in the ovarian reserve on ovarian function and fertility, utility of anti-Mullerian hormone as a diagnostic marker for fertility and causes of variation in the ovarian reserve in cattle. Reprod. Fertil. Dev. 23, 1–14.
| Does size matter in females? An overview of the impact of the high variation in the ovarian reserve on ovarian function and fertility, utility of anti-Mullerian hormone as a diagnostic marker for fertility and causes of variation in the ovarian reserve in cattle.Crossref | GoogleScholarGoogle Scholar |
Jainudeen, M.R., and Hafez, E.S.E. (2013). ‘Reproduction in Farm Animals.’ (Raven Press: Somerset, UK.)
Jimenez-Krassel, F., Folger, J. K., 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 estrous cycles in cattle. Biol. Reprod. 80, 1272–1281.
| Evidence that high variation in ovarian reserves of healthy young adults has a negative impact on the corpus luteum and endometrium during estrous cycles in cattle.Crossref | GoogleScholarGoogle Scholar |
Jimenez-Krassel, F., Scheetz, D. M., Neuder, L. M., Ireland, J. L. H., Pursley, J. R., Smith, G. W., Tempelman, R. J., Ferris, T., Roudebush, W. E., Mossa, F., Lonergan, P., Evans, A. C. O., and Ireland, J. J. (2015). Concentration of anti-Müllerian hormone in dairy heifers is positively associated with productive herd life. J. Dairy Sci. 98, 3036–3045.
| Concentration of anti-Müllerian hormone in dairy heifers is positively associated with productive herd life.Crossref | GoogleScholarGoogle Scholar |
Jimenez-Krassel, F., Scheetz, D. M., Neuder, L. M., Pursley, J. R., and Ireland, J. J. (2017). A single ultrasound determination of ≥25 follicles ≥3 mm in diameter in dairy heifers is predictive of a reduced productive herd life. J. Dairy Sci. 100, 5019–5027.
| A single ultrasound determination of ≥25 follicles ≥3 mm in diameter in dairy heifers is predictive of a reduced productive herd life.Crossref | GoogleScholarGoogle Scholar |
Kajihara, Y., Blakewood, E. G., Myers, M. W., Kometani, N., Goto, K., and Godke, R. A. (1991). In vitro maturation and fertilization of follicular oocytes obtained from calves. Theriogenology 35, 220.
| In vitro maturation and fertilization of follicular oocytes obtained from calves.Crossref | GoogleScholarGoogle Scholar |
Kinder, J. E., Bergfeld, E. G. M., Wehrman, M. E., Peters, K. E., and Kojima, F. N. (1995). Endocrine basis for puberty in heifers and ewes. J. Reprod. Fertil. Suppl. 49, 393–407.
Lonergan, P., Monaghan, P., Rizos, D., Boland, M. P., 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.
| Effect of follicle size on bovine oocyte quality and developmental competence following maturation, fertilization, and culture in vitro.Crossref | GoogleScholarGoogle Scholar |
Lucy, M. C. (2001). Reproductive loss in high-producing dairy cattle: where will it end? J. Dairy. Sci. 84, 1277–1293.
| Reproductive loss in high-producing dairy cattle: where will it end?Crossref | GoogleScholarGoogle Scholar |
Martinez, M. F., Sanderson, N., Quirke, L. D., Lawrence, S. B., and Juengel, J. L. (2016). Association between antral follicle count and reproductive measures in New Zealand lactating dairy cows maintained in a pasture based production system. Theriogenology 85, 466–475.
| Association between antral follicle count and reproductive measures in New Zealand lactating dairy cows maintained in a pasture based production system.Crossref | GoogleScholarGoogle Scholar |
McNatty, K. P., Smith, P., Hudson, N. L., Heath, D. A., Tisdall, D. J., 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.
Monteiro, F. M., Batista, E. O. S., Vieira, L. M., Bayeux, B. M., Accorsi, M., Campanholi, S. P., Dias, E. A. R., Souza, A. H., and Baruselli, P. S. (2017). Beef donor cows with high number of retrieved COC produce more in vitro embryos compared with cows with low number of COC after repeated ovum pick-up sessions. Theriogenology 90, 54–58.
| Beef donor cows with high number of retrieved COC produce more in vitro embryos compared with cows with low number of COC after repeated ovum pick-up sessions.Crossref | GoogleScholarGoogle Scholar |
Morotti, F., Santos, G. M. G., Silva-Santos, K. C., Moritz, Y., Marcantonio, T. N., and Seneda, M. M. (2014). Follicular dynamics in Nelore females (Bos indicus) with high or low numbers of antral follicles. Anim. Reprod. 11, 352.
Morotti, F., Santos, G. M. G., Júnior, C. K., Silva-Santos, K. C., Roso, V. M., and Seneda, M. M. (2017a). Correlation between phenotype, genotype and antral follicle population in beef heifers. Theriogenology 91, 21–26.
| Correlation between phenotype, genotype and antral follicle population in beef heifers.Crossref | GoogleScholarGoogle Scholar |
Morotti, F., Zangirolamo, A. F., Silva, N. C., Silva, C. B., Rosa, C. O., and Seneda, M. M. (2017b). Antral follicle count in cattle: advantages, challenges, and controversy. Anim. Reprod. 14, 514–520.
| Antral follicle count in cattle: advantages, challenges, and controversy.Crossref | GoogleScholarGoogle Scholar |
Morotti, F., Moretti, R., dos Santos, G. M. G., Silva-Santos, K. C., Cerqueira, P. H. R., and Seneda, M. M. (2018). Ovarian follicular dynamics and conception rate in Bos indicus cows with different antral follicle counts subjected to timed artificial insemination. Anim. Reprod. Sci. 188, 170–177.
| Ovarian follicular dynamics and conception rate in Bos indicus cows with different antral follicle counts subjected to timed artificial insemination.Crossref | GoogleScholarGoogle Scholar |
Mossa, F., Walsh, S. W., Butler, S. T., Berry, D. P., Carter, F., Lonergan, P., Smith, G. W., Ireland, J. J., and Evans, A. C. O. (2012). Low numbers of ovarian follicles ≥3 mm in diameter are associated with low fertility in dairy cows. J. Dairy Sci. 95, 2355–2361.
| Low numbers of ovarian follicles ≥3 mm in diameter are associated with low fertility in dairy cows.Crossref | GoogleScholarGoogle Scholar |
Mossa, F., Jimenez-Krassel, F., Scheetz, D., Weber-Nielsen, M., Evans, A. C. O., and Ireland, J. J. (2017). Anti-Müllerian hormone (AMH) and fertility management in agricultural species. Reproduction 154, R1–R11.
| Anti-Müllerian hormone (AMH) and fertility management in agricultural species.Crossref | GoogleScholarGoogle Scholar |
Negreiros, M. P. M., Seugling, G. H. F., Pegorari Junior, L. A. R.., Silva, G. C., Pereira, A. C. B., Kairuz, J. G. R., Vicentin, G. R., Blaschi, W., Barreiros, T. R. R. (2018). Effect of body condition score and antral follicle count on induction of puberty in Nelore heifers. In ‘Proceedings of the 32nd Annual Meeting of the Brazilian Embryo Technology Society (SBTE), Florianópolis, SC, Brazil, 16–18 August 2018’. Animal Reproduction,15, p. 339. [Abstract]
Onuma, H., Hahn, J., Maurer, R. R., and Foote, R. H. (1969). Repeated superovulation in calves. J. Anim. Sci. 28, 634–637.
| Repeated superovulation in calves.Crossref | GoogleScholarGoogle Scholar |
Palma, G. A., Tortonese, D. J., and Sinowatz, F. (2001). Developmental capacity in vitro of prepubertal oocytes. Anat. Histol. Embryol. 30, 295–300.
| Developmental capacity in vitro of prepubertal oocytes.Crossref | GoogleScholarGoogle Scholar |
Pegorari Junior, L. A. R., Seugling, G. H. F., Negreiros, M. P. M., Vicentin, G. R.., Silva, G. C., Kairuz, J. G. R., Pereira, A. C. B., Blaschi, W., Barreiros, T.R.R. (2018). Effect of cyclicity, body condition score and antral follicle count on the conception rate of Nelore cows submitted to fixed-time artificial insemination. In ‘Proceedings of the 32nd Annual Meeting of the Brazilian Embryo Technology Society (SBTE), Florianópolis, SC, Brazil, 16–18 August 2018. Animal Reproduction, 15, p. 339. [Abstract]
Pontes, J. H. F., Nonato-Junior, I., Sanches, B. V., Ereno-Junior, J. C., Uvo, S., Barreiros, T. R. R., Oliveira, J. A., Hasler, J. F., and Seneda, M. M. (2009). Comparison of embryo yield and pregnancy rate between in vivo and in vitro methods in the same Nelore (Bos indicus) donor cows. Theriogenology 71, 690–697.
| Comparison of embryo yield and pregnancy rate between in vivo and in vitro methods in the same Nelore (Bos indicus) donor cows.Crossref | GoogleScholarGoogle Scholar |
Rawlings, N. C., Evans, A. C. O., Honaramooz, A., and Bartlewski, P. M. (2003). Antral follicle growth and endocrine changes in prepubertal cattle, sheep and goats. Anim. Reprod. Sci. 78, 259–270.
| Antral follicle growth and endocrine changes in prepubertal cattle, sheep and goats.Crossref | GoogleScholarGoogle Scholar |
Rico, C., Fabre, S., Medigue, C., di Clemente, N., Clement, F., Bontoux, M., Touze, J. L., Dupont, M., Briant, E., Remy, B., Beckers, J. F., and Monniaux, D. (2009). Anti-Mullerian hormone is an endocrine marker of ovarian gonadotropin-responsive follicles and can help to predict superovulatory responses in the cow. Biol. Reprod. 80, 50–59.
| Anti-Mullerian hormone is an endocrine marker of ovarian gonadotropin-responsive follicles and can help to predict superovulatory responses in the cow.Crossref | GoogleScholarGoogle Scholar |
Rosa, C. O., Marinho, L. S. R., da Rosa, P. R. A., De Cesaro, M. P., Lunardelli, P. A., Silva‐Santos, K. C., Basso, A. C., Bordignon, V., and Seneda, M. M. (2018). Molecular characteristics of granulosa and cumulus cells and oocyte competence in Nelore cows with low and high numbers of antral follicles. Reprod. Domest. Anim. , .
| Molecular characteristics of granulosa and cumulus cells and oocyte competence in Nelore cows with low and high numbers of antral follicles.Crossref | GoogleScholarGoogle Scholar |
Santos, G. M. G., Silva-Santos, K. C., Siloto, L. S., Morotti, F., Marcantonio, T. N., Marinho, L. S. R., Thasmo, R. L. O., Koetz, J. R. C., Cintra, D. M. L., and Seneda, M. M. (2012). Dinâmica folicular em fêmeas bovinas de alta, média e baixa contagem de folículos antrais: resultados preliminares. Acta Sci. Vet. 40, 422.
Santos, G. M. G., Silva-Santos, K. C., Barreiros, T. R. R., Blaschi, W., Morotti, F., Silva, C. B., Moraes, F. L. Z., Giudicissi, D. P. L., and Seneda, M. M. (2013). Conception rates following FTAI of Nelore cows (Bos indicus) with high, intermediate and low numbers of antral follicles. Anim. Reprod. 10, 451.
Santos, G. M. G., Silva-Santos, K. C., Barreiros, T. R. R., Morotti, F., Sanches, B. V., Moraes, F. L. Z., Blaschi, W., and Seneda, M. M. (2016). High numbers of antral follicles are positively associated with in vitro embryo production but not the conception rate for FTAI in Nelore cattle. Anim. Reprod. Sci. 165, 17–21.
| High numbers of antral follicles are positively associated with in vitro embryo production but not the conception rate for FTAI in Nelore cattle.Crossref | GoogleScholarGoogle Scholar |
Senger, P. L. (1997). ‘Pathways to Pregnancy and Parturition.’ (Raven Press: Redmond.)
Silva-Santos, K. C., Santos, G. M. G., Júnior, C. K., Morotti, F., Siloto, L. S., Marcantonio, T. N., Urbano, M. R., Oliveira, R. L., Lima, D. C. M., and Seneda, M. M. (2014). Antral follicle populations and embryo production – in vitro and in vivo – of Bos indicus–taurus donors from weaning to yearling ages. Reprod. Domest. Anim. 49, 228–232.
| Antral follicle populations and embryo production – in vitro and in vivo – of Bos indicus–taurus donors from weaning to yearling ages.Crossref | GoogleScholarGoogle Scholar |
Singh, J., Domínguez, M., Jaiswal, R., and Adams, G. P. (2004). A simple ultrasound test to predict the superstimulatory response in cattle. Theriogenology 62, 227–243.
| A simple ultrasound test to predict the superstimulatory response in cattle.Crossref | GoogleScholarGoogle Scholar |
Watanabe, Y. F., de Souza, A. H., Mingoti, R. D., Ferreira, R. M., Batista, E. O. S., Dayan, A., Watanabe, O. Y., Meirelles, F. V., Nogueira, M. F. G., Ferraz, J. B. S., and Baruselli, P. S. (2017). Number of oocytes retrieved per donor during OPU and its relationship with in vitro embryo production and field fertility following embryo transfer. Anim. Reprod. 14, 635–644.
| Number of oocytes retrieved per donor during OPU and its relationship with in vitro embryo production and field fertility following embryo transfer.Crossref | GoogleScholarGoogle Scholar |
Wathes, D. C., Pollott, G. E., Johnson, K. F., Richardson, H., and Cooke, J. S. (2014). Heifer fertility and carry over consequences for life time production in dairy and beef cattle. Animal 8, 91–104.
| Heifer fertility and carry over consequences for life time production in dairy and beef cattle.Crossref | GoogleScholarGoogle Scholar |
Zaraza, J., Oropeza, A., Velazquez, M. A., Korsawe, K., Herrmann, D., Carnwath, J. W., and Niemann, H. (2010). Developmental competence and mRNA expression of preimplantation in vitro-produced embryos from prepubertal and postpubertal cattle and their relationship with apoptosis after intraovarian administration of IGF-1. Theriogenology 74, 75–89.
| Developmental competence and mRNA expression of preimplantation in vitro-produced embryos from prepubertal and postpubertal cattle and their relationship with apoptosis after intraovarian administration of IGF-1.Crossref | GoogleScholarGoogle Scholar |