Influência do reprodutor sobre o comportamento de estro, liberação de estrógeno, progesterona e início da puberdade em cabras Saanen pré-puberes
DOI:
https://doi.org/10.5433/1679-0359.2020v41n4p1247Palavras-chave:
Male effec, Hormone, Corpus luteum, Goats.Resumo
O presente estudo investigou o efeito do macho sobre o comportamento do estro, liberação de estradiol e progesterona em cabritas Sannen pré-púberes. Vinte e nove cabritas com 135 ± 10 dias de idade e peso corporal de 22,8 ± 3,3 kg foram submetidas à três tratamentos: macho; fêmeas androgenizadas; controle (mantidas isoladas do efeito macho ou de fêmeas androgenizadas) . Os comportamentos sexuais foram registrados diariamente e as amostras de sangue foram colhidas semanalmente ao longo de 24 semanas. Os tratamentos macho e fêmea androgenizada aumentaram significativamente a ocorrência comportamental do estro (P ? 0,02), a concentração de progesterona (P ? 0,01) e estradiol (P ? 0,01) em comparação ao tratamento controle. As cabritas expostas ao efeito macho anteciparam o comportamento de estro em duas semanas, e o mantiveram por mais três semanas quando comparado às cabritas dos tratamentos fêmea androgenizada e controle. Apenas 44% das cabritas controle foram observadas em estro, sendo que 70% das cabritas submetidas aos tratamentos macho e fêmea androgenizada foram observadas em estro. Além disso, 60% das cabritas expostas ao efeito macho, 40 % das cabritas expostas ao efeito fêmea androgenizada e 22% das cabritas controle apresentaram concentrações de progesterona superiores a 1 ng mL-1, o que indica a presença de corpo lúteo funcional. De fato, o efeito macho aumentou significativamente o número de fêmeas em estro, a concentração de estradiol e progesterona, o número de fêmeas com corpo lúteo funcional, sugerindo que o efeito macho pode ser usado para antecipar o início da puberdade em cabritas Saanen.Downloads
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Referências
Bedos, M., Duarte, G., Flores, J. A., Fitz-Rodriguez, G., Hernandez, H., Vielma, J.,… Delgadillo, J. A. (2014). Two or 24 h of daily contact with sexually active males results in different profiles of LH secretion that both lead to ovulation in anestrous goats. Domestic Animal Endocrinology, 48, 93-99. doi: 10.1016/j.domaniend.2014.02.003
Bedos, M., Velazquez, H., Fitz-Rodriguez, G., Flores, J. A., Hernandez, H., Duarte, G.,… Delgadillo, J. A. (2012). Sexually active bucks are able to stimulate three successive groups of females per day with a 4-hour period of contact. Physiology & Behavior, 106(2), 259-263. doi: 10.1016/j.physbeh.2012.02.015
Blaszczyk, B., Udala, J., & Gaczarzewicz, D. (2004). Changes in estradiol, progesterone, melatonin, prolactin and thyroxine concentrations in blood plasma of goats following induced oestrous in and outside the natural breeding season. Small Ruminant Research, 51(3), 209-219. doi: 10.1016/S0921-4488(03)00190-1
Chemineau, P., Pellicer-Rubio, M. T., Lassoued, N., Khaldi, G., & Monniaux, D. (2006). Male-induced short oestrous and ovarian cycles in sheep and goats: a working hypothesis. Reproduction Nutrition Development, 46(4), 417-429. doi: 10.1051/rnd:2006022
Chemineau, P., Daveau, A., Maurice, F., & Delgadillo, J. A. (1992). Seasonality of estrus and ovulation is not modified by subjecting female alpine goats to a tropical photoperiod. Small Ruminant Research, 8(4), 299-312. doi: 10.1016/0921-4488(92)90211-L
Cruz, J. F., Rondina, D., & Freitas, V. J. F. (2005). Ovarian follicular dynamics during anestrus in Anglo-Nubian and Saanen goats raised in tropical climate. Tropical Animal Health and Production, 37(5), 395-402. doi: 10.1007/s11250-005-4166-6
Delgadillo, J. A. (2011). Environmental and social cues can be used in combination to develop sustainable breeding techniques for goat reproduction in the subtropics. Animal, 5(1), 74-81. doi: 10.1017/S1751731110001400
Delgadillo, J. A., Vielma, J., Hernandez, H., Flores, J. A., Duarte, G., Fernandez, I. G.,... Gelez, H. (2012). Male goat vocalizations stimulate the estrous behavior and LH secretion in anestrous goats that have been previously exposed to bucks. Hormones and Behavior, 62, 525-530. doi: 10.1016/j.yhbeh.2012.08.014
Duarte, G., Flores, J. A., Malpaux, B., & Delgadillo, J. A. (2008). Reproductive seasonality in female goats adapted to a subtropical environment persists independently of food availability. Domestic Animal Endocrinology, 35(4), 362-370. doi: 10.1016/j.domaniend.2008.07.005
Ebling, F. J. P. (2005). The neuroendocrine timing of puberty. Reproduction, 129, 675-683. doi: 10.1530/rep.1.00367
Evans, A. C. O., & O'doherty, J. V. (2001). Endocrine changes and management factors affecting puberty in gilts. Livestock Production Science, 68(1), 1-12. doi: 10.1016/S0301-6226(00)00202-5
Fabre-Nys, C., & Gelez, H. (2007). Sexual behavior in ewes and other domestic ruminants. Hormones and Behavior, 52(1), 18-25. doi: 10.1016/j.yhbeh.2007.04.001
Fatet, A., Pellicer-Rubio, M. T., & Leboeuf, B. (2011). Reproductive cycle of goats. Animal Reproduction Science, 124(3-4), 211-219. doi: 10.1016/j.anireprosci.2010.08.029
Fiol, C., Quintans, G., & Ungerfeld, R. (2010). Response to biostimulation in peri-puberal beef heifers: influence of male-female proximity and heifer's initial body weight. Theriogenology, 74(4), 569-575. doi: 10.1016/j.theriogenology.2010.03.015
Flanagan, K. A., Webb, W., & Stowers, L. (2011). Analysis of male pheromones that accelerate female reproductive organ development. Plos One, 6(2), 1-17. doi: 10.1371/journal.pone.0016660
Foster, D. L., Jackson, L. M., & Padmanabhan, V. (2006). Programming of GnRH feedback controls timing puberty and adult reproductive activity. Molecular and Cellular Endocrinology, 254/255, 109-119. doi: 10.1016/j.mce.2006.04.004
Katz, L. S. (2007). Sexual behavior of domesticated ruminants. Hormones and Behavior, 52(1), 56-63. doi: 10.1016/j.yhbeh.2007.03.012
Martinez-Alfaro, J. C., Hernandez, H., Flores, J. A., Duarte, G., Fitz-Rodriguez, G., Fernandez, I. G.,… Delgadillo, J. A. (2014). Importance of intense male sexual behavior for inducing the preovulatory LH surge and ovulation in seasonally anovulatory female goats. Theriogenology, 82(7), 1028-1035. doi: 10.1016/j.theriogenology. 2014.07.024
Mellado, M., & Hernandez, J. R. (1996). Ability of androgenized goat wethers and does to induce estrus in goats under extensive conditions during anestrus and breeding seasons. Small Ruminant Research, 23(1), 37-42. doi: 10.1016/S0921-4488(96)00897-8
Menchaca, A., & Rubianes, E. (2001).Effect of high progesterone concentrations during the early luteal phase on the length of the ovulatory cycle of goats. Animal Reproduction Science, 68(1-2), 69-76. doi: 10.1016/S0378-4320(01)00139-7
National Research Council (2007). Nutrients requirements of small ruminant: sheep, goats, cervids and new world camelids. Washington, D.C: National Academy Press.
Nogueira, D. M., Cavalieri, J., Gummow, B., & Parker, A. J. (2015). Comparison of follicular dynamics and hormone profiles in Boer goats examined during the breeding and non-breeding seasons in the tropics of Queensland, Australia. Small Ruminant Research, 125, 93-100. doi: 10.1016/j.smallrumres.2015.02.014
Ponce, J. L., Hernandez, H., Flores, J. A., Matthieu, K., Chemineau, P., & Delgadillo, J. A. (2015). One day of contact with photostimulated bucks is sufficient to induce ovulation in seasonally anestrous goats. Theriogenology, 84(6), 880-886. doi: 10.1016/j.theriogenology.2015.05.019
Ramirez, S., Bedos, M., Chasles, M., Hernández, H., Flores, J.A., Vielma, J.,… Delgadillo, J. A. (2017). Fifteen minutes of daily contact with sexually active male induces ovulation but delays its timing in seasonally anestrous goats. Theriogenology, 87, 148-153. doi: 10.1016/j.theriogenology.2016.08.019
Scaramuzzi, R. J., & Martin, G. B. (2008).The importance of interactions among nutrition, seasonality and socio-sexual factors in the development of hormone-free methods for controlling fertility. Reproduction in Domestic Animals, 43(Suppl. 2), 129-136. doi: 10.1111/j.1439-0531.2008.01152.x
Statistical Analysis System Institute (2008). SAS Institute. SAS/STAT 9.2 User’s Guide. Cary: SAS Institute Inc.
Valasi, I., Chadio, S., Fthenakis, G. C., & Amiridis, G. S. (2012). Management of pre-pubertal small ruminants: Physiological basis and clinical approach. Animal Reproduction Science, 130(3-4), 126-134. doi: 10.1016/j.anireprosci.2012.01.005
Bedos, M., Velazquez, H., Fitz-Rodriguez, G., Flores, J. A., Hernandez, H., Duarte, G.,… Delgadillo, J. A. (2012). Sexually active bucks are able to stimulate three successive groups of females per day with a 4-hour period of contact. Physiology & Behavior, 106(2), 259-263. doi: 10.1016/j.physbeh.2012.02.015
Blaszczyk, B., Udala, J., & Gaczarzewicz, D. (2004). Changes in estradiol, progesterone, melatonin, prolactin and thyroxine concentrations in blood plasma of goats following induced oestrous in and outside the natural breeding season. Small Ruminant Research, 51(3), 209-219. doi: 10.1016/S0921-4488(03)00190-1
Chemineau, P., Pellicer-Rubio, M. T., Lassoued, N., Khaldi, G., & Monniaux, D. (2006). Male-induced short oestrous and ovarian cycles in sheep and goats: a working hypothesis. Reproduction Nutrition Development, 46(4), 417-429. doi: 10.1051/rnd:2006022
Chemineau, P., Daveau, A., Maurice, F., & Delgadillo, J. A. (1992). Seasonality of estrus and ovulation is not modified by subjecting female alpine goats to a tropical photoperiod. Small Ruminant Research, 8(4), 299-312. doi: 10.1016/0921-4488(92)90211-L
Cruz, J. F., Rondina, D., & Freitas, V. J. F. (2005). Ovarian follicular dynamics during anestrus in Anglo-Nubian and Saanen goats raised in tropical climate. Tropical Animal Health and Production, 37(5), 395-402. doi: 10.1007/s11250-005-4166-6
Delgadillo, J. A. (2011). Environmental and social cues can be used in combination to develop sustainable breeding techniques for goat reproduction in the subtropics. Animal, 5(1), 74-81. doi: 10.1017/S1751731110001400
Delgadillo, J. A., Vielma, J., Hernandez, H., Flores, J. A., Duarte, G., Fernandez, I. G.,... Gelez, H. (2012). Male goat vocalizations stimulate the estrous behavior and LH secretion in anestrous goats that have been previously exposed to bucks. Hormones and Behavior, 62, 525-530. doi: 10.1016/j.yhbeh.2012.08.014
Duarte, G., Flores, J. A., Malpaux, B., & Delgadillo, J. A. (2008). Reproductive seasonality in female goats adapted to a subtropical environment persists independently of food availability. Domestic Animal Endocrinology, 35(4), 362-370. doi: 10.1016/j.domaniend.2008.07.005
Ebling, F. J. P. (2005). The neuroendocrine timing of puberty. Reproduction, 129, 675-683. doi: 10.1530/rep.1.00367
Evans, A. C. O., & O'doherty, J. V. (2001). Endocrine changes and management factors affecting puberty in gilts. Livestock Production Science, 68(1), 1-12. doi: 10.1016/S0301-6226(00)00202-5
Fabre-Nys, C., & Gelez, H. (2007). Sexual behavior in ewes and other domestic ruminants. Hormones and Behavior, 52(1), 18-25. doi: 10.1016/j.yhbeh.2007.04.001
Fatet, A., Pellicer-Rubio, M. T., & Leboeuf, B. (2011). Reproductive cycle of goats. Animal Reproduction Science, 124(3-4), 211-219. doi: 10.1016/j.anireprosci.2010.08.029
Fiol, C., Quintans, G., & Ungerfeld, R. (2010). Response to biostimulation in peri-puberal beef heifers: influence of male-female proximity and heifer's initial body weight. Theriogenology, 74(4), 569-575. doi: 10.1016/j.theriogenology.2010.03.015
Flanagan, K. A., Webb, W., & Stowers, L. (2011). Analysis of male pheromones that accelerate female reproductive organ development. Plos One, 6(2), 1-17. doi: 10.1371/journal.pone.0016660
Foster, D. L., Jackson, L. M., & Padmanabhan, V. (2006). Programming of GnRH feedback controls timing puberty and adult reproductive activity. Molecular and Cellular Endocrinology, 254/255, 109-119. doi: 10.1016/j.mce.2006.04.004
Katz, L. S. (2007). Sexual behavior of domesticated ruminants. Hormones and Behavior, 52(1), 56-63. doi: 10.1016/j.yhbeh.2007.03.012
Martinez-Alfaro, J. C., Hernandez, H., Flores, J. A., Duarte, G., Fitz-Rodriguez, G., Fernandez, I. G.,… Delgadillo, J. A. (2014). Importance of intense male sexual behavior for inducing the preovulatory LH surge and ovulation in seasonally anovulatory female goats. Theriogenology, 82(7), 1028-1035. doi: 10.1016/j.theriogenology. 2014.07.024
Mellado, M., & Hernandez, J. R. (1996). Ability of androgenized goat wethers and does to induce estrus in goats under extensive conditions during anestrus and breeding seasons. Small Ruminant Research, 23(1), 37-42. doi: 10.1016/S0921-4488(96)00897-8
Menchaca, A., & Rubianes, E. (2001).Effect of high progesterone concentrations during the early luteal phase on the length of the ovulatory cycle of goats. Animal Reproduction Science, 68(1-2), 69-76. doi: 10.1016/S0378-4320(01)00139-7
National Research Council (2007). Nutrients requirements of small ruminant: sheep, goats, cervids and new world camelids. Washington, D.C: National Academy Press.
Nogueira, D. M., Cavalieri, J., Gummow, B., & Parker, A. J. (2015). Comparison of follicular dynamics and hormone profiles in Boer goats examined during the breeding and non-breeding seasons in the tropics of Queensland, Australia. Small Ruminant Research, 125, 93-100. doi: 10.1016/j.smallrumres.2015.02.014
Ponce, J. L., Hernandez, H., Flores, J. A., Matthieu, K., Chemineau, P., & Delgadillo, J. A. (2015). One day of contact with photostimulated bucks is sufficient to induce ovulation in seasonally anestrous goats. Theriogenology, 84(6), 880-886. doi: 10.1016/j.theriogenology.2015.05.019
Ramirez, S., Bedos, M., Chasles, M., Hernández, H., Flores, J.A., Vielma, J.,… Delgadillo, J. A. (2017). Fifteen minutes of daily contact with sexually active male induces ovulation but delays its timing in seasonally anestrous goats. Theriogenology, 87, 148-153. doi: 10.1016/j.theriogenology.2016.08.019
Scaramuzzi, R. J., & Martin, G. B. (2008).The importance of interactions among nutrition, seasonality and socio-sexual factors in the development of hormone-free methods for controlling fertility. Reproduction in Domestic Animals, 43(Suppl. 2), 129-136. doi: 10.1111/j.1439-0531.2008.01152.x
Statistical Analysis System Institute (2008). SAS Institute. SAS/STAT 9.2 User’s Guide. Cary: SAS Institute Inc.
Valasi, I., Chadio, S., Fthenakis, G. C., & Amiridis, G. S. (2012). Management of pre-pubertal small ruminants: Physiological basis and clinical approach. Animal Reproduction Science, 130(3-4), 126-134. doi: 10.1016/j.anireprosci.2012.01.005
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2020-05-13
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Augusto, L., Rodrigues, A. D., Merighe, G. K. F., Oliveira, S. A. de, Bomfim, G. F., & Negrão, J. A. (2020). Influência do reprodutor sobre o comportamento de estro, liberação de estrógeno, progesterona e início da puberdade em cabras Saanen pré-puberes. Semina: Ciências Agrárias, 41(4), 1247–1258. https://doi.org/10.5433/1679-0359.2020v41n4p1247
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