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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
07/11/2022 |
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Actualizado : |
07/11/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DUVAL, L.H.; RECHSTEINER, S.M.F.; GASTAL, G.D.A.; GASTAL, M.O.; MATTOS, R.C.; GASTAL, E.L. |
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Afiliación : |
LUZIA H. DUVAL, Postgraduate Program in Animal Medicine: Equine, Faculty of Veterinary Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; SANDRA M. FIALA RECHSTEINER, Postgraduate Program in Animal Medicine: Equine, Faculty of Veterinary Medicine, Federal University Rio Grande do Sul, Rio Grande do Sul, Porto Alegre, Brazil; HISTOREP, Biology Institute, Federal University of Pelotas, Rio Grande do Sul, Pelotas, Brazi; GUSTAVO DESIRE ANTUNES GASTAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MELBA O. GASTAL, Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, IL, United States; RODRIGO C. MATTOS, Postgraduate Program in Animal Medicine: Equine, Faculty of Veterinary Medicine, Federal University of Rio Grande do Sul, Rio Grande do Sul, Porto Alegre, Brazil; EDUARDO L. GASTAL, Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, IL, United States. |
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Título : |
Ovarian and uterine dynamics during the estrous cycle in Criollo breed mares. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Journal of Equine Veterinary Science, 2022, Volume 118, Article 104131. doi: https://doi.org/10.1016/j.jevs.2022.104131 |
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ISSN : |
0737-0806 |
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DOI : |
10.1016/j.jevs.2022.104131 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 12 July 2022; Received in revised form 16 September 2022; Accepted 26 September 2022; Available online 29 September 2022.
Correspondence author: Gastal, E.L.; Animal Science, School of Agricultural Sciences, Southern Illinois University, 1205 Lincoln Drive, MC 4417, Carbondale, IL, United States; email:egastal@siu.edu -- |
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Contenido : |
ABSTRACT.- After having been brought to America 400 years ago, the Criollo horse reproduced freely for centuries in the southern part of the American continent. Roughness, resistance, and endurance are typical characteristics of this breed of horses. Although the natural selection that occurred over the centuries may have positively influenced the fertility and longevity of this breed, information regarding ovarian function and other reproductive aspects of Criollo breed mares under natural or controlled management conditions is scarce. The objectives of the present study were to (1) characterize the follicular dynamics of Criollo breed mares, (2) characterize growth and regression of the corpus luteum, and (3) study the cervical and uterine tone and ultrasonographic echotexture changes during two consecutive estrous cycles. In this study, 26 interovulatory intervals (IOI) were evaluated in 13 mares. Spontaneous estrous cycles were characterized by the following: (1) the IOI length was 21 days; (2) dominant and subordinate follicles emerged together at day 5 (ovulation = day 0), and their growth rates were slower until the day of deviation; (3) the deviation in growth rates between the two largest follicles of the ovulatory wave occurred when the dominant and subordinate follicles reached 22 and 21 mm in diameter, respectively; (4) the mean diameter of the preovulatory follicle at the day before ovulation was 43 mm; (5) different combinations of follicular waves were observed in each interovulatory interval; (6) the corpus luteum reached its maximum diameter about 2 days after ovulation and decreased gradually afterward; (7) after ovulation, the cervical and uterine tones were positively correlated and remained elevated until the onset of the expected luteolysis (days 12?14); and (8) after the expected luteolysis, the endometrial echotexture started to increase and reached maximum values 5?3 days before ovulation, when it started to decrease. Moderate-to-strong positive correlations between IOIs revealed repeatability within animals for the diameter of the preovulatory follicle at maximum and at the day before ovulation, cervical and uterine tones, endometrial echotexture, and corpus luteum diameter. The findings herein presented are of fundamental importance for a better understanding of the reproductive physiological patterns of the estrous cycle in the Criollo breed mare. © 2022 Elsevier Inc. MenosABSTRACT.- After having been brought to America 400 years ago, the Criollo horse reproduced freely for centuries in the southern part of the American continent. Roughness, resistance, and endurance are typical characteristics of this breed of horses. Although the natural selection that occurred over the centuries may have positively influenced the fertility and longevity of this breed, information regarding ovarian function and other reproductive aspects of Criollo breed mares under natural or controlled management conditions is scarce. The objectives of the present study were to (1) characterize the follicular dynamics of Criollo breed mares, (2) characterize growth and regression of the corpus luteum, and (3) study the cervical and uterine tone and ultrasonographic echotexture changes during two consecutive estrous cycles. In this study, 26 interovulatory intervals (IOI) were evaluated in 13 mares. Spontaneous estrous cycles were characterized by the following: (1) the IOI length was 21 days; (2) dominant and subordinate follicles emerged together at day 5 (ovulation = day 0), and their growth rates were slower until the day of deviation; (3) the deviation in growth rates between the two largest follicles of the ovulatory wave occurred when the dominant and subordinate follicles reached 22 and 21 mm in diameter, respectively; (4) the mean diameter of the preovulatory follicle at the day before ovulation was 43 mm; (5) different combinations of follicular waves were observe... Presentar Todo |
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Palabras claves : |
Cervix and uterus; Follicle and corpus luteum dynamics; Horse; Ultrasound. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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Marc : |
LEADER 03612naa a2200265 a 4500
001 1063705
005 2022-11-07
008 2022 bl uuuu u00u1 u #d
022 $a0737-0806
024 7 $a10.1016/j.jevs.2022.104131$2DOI
100 1 $aDUVAL, L.H.
245 $aOvarian and uterine dynamics during the estrous cycle in Criollo breed mares.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 12 July 2022; Received in revised form 16 September 2022; Accepted 26 September 2022; Available online 29 September 2022. Correspondence author: Gastal, E.L.; Animal Science, School of Agricultural Sciences, Southern Illinois University, 1205 Lincoln Drive, MC 4417, Carbondale, IL, United States; email:egastal@siu.edu --
520 $aABSTRACT.- After having been brought to America 400 years ago, the Criollo horse reproduced freely for centuries in the southern part of the American continent. Roughness, resistance, and endurance are typical characteristics of this breed of horses. Although the natural selection that occurred over the centuries may have positively influenced the fertility and longevity of this breed, information regarding ovarian function and other reproductive aspects of Criollo breed mares under natural or controlled management conditions is scarce. The objectives of the present study were to (1) characterize the follicular dynamics of Criollo breed mares, (2) characterize growth and regression of the corpus luteum, and (3) study the cervical and uterine tone and ultrasonographic echotexture changes during two consecutive estrous cycles. In this study, 26 interovulatory intervals (IOI) were evaluated in 13 mares. Spontaneous estrous cycles were characterized by the following: (1) the IOI length was 21 days; (2) dominant and subordinate follicles emerged together at day 5 (ovulation = day 0), and their growth rates were slower until the day of deviation; (3) the deviation in growth rates between the two largest follicles of the ovulatory wave occurred when the dominant and subordinate follicles reached 22 and 21 mm in diameter, respectively; (4) the mean diameter of the preovulatory follicle at the day before ovulation was 43 mm; (5) different combinations of follicular waves were observed in each interovulatory interval; (6) the corpus luteum reached its maximum diameter about 2 days after ovulation and decreased gradually afterward; (7) after ovulation, the cervical and uterine tones were positively correlated and remained elevated until the onset of the expected luteolysis (days 12?14); and (8) after the expected luteolysis, the endometrial echotexture started to increase and reached maximum values 5?3 days before ovulation, when it started to decrease. Moderate-to-strong positive correlations between IOIs revealed repeatability within animals for the diameter of the preovulatory follicle at maximum and at the day before ovulation, cervical and uterine tones, endometrial echotexture, and corpus luteum diameter. The findings herein presented are of fundamental importance for a better understanding of the reproductive physiological patterns of the estrous cycle in the Criollo breed mare. © 2022 Elsevier Inc.
653 $aCervix and uterus
653 $aFollicle and corpus luteum dynamics
653 $aHorse
653 $aUltrasound
700 1 $aRECHSTEINER, S.M.F.
700 1 $aGASTAL, G.D.A.
700 1 $aGASTAL, M.O.
700 1 $aMATTOS, R.C.
700 1 $aGASTAL, E.L.
773 $tJournal of Equine Veterinary Science, 2022, Volume 118, Article 104131. doi: https://doi.org/10.1016/j.jevs.2022.104131
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
26/04/2021 |
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Actualizado : |
26/04/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
OLIVERA, L.; PEREYRA, S.; BANCHERO, G.; TELLECHEA, G.; SAWCHIK, J.; AVERY, M.L.; RODRÍGUEZ, E. |
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Afiliación : |
LOURDES OLIVERA, Agricultural Technology Promotion Fund (FPTA), Instituto Nacional de Investigación Agropecuaria (INIA Uruguay). Av. Millán 4703. Montevideo. Uruguay.; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUILLERMO TELLECHEA HERNÁNDEZ, Agricultural Technology Promotion Fund (FPTA), INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE SAWCHIK PINTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MICHAEL L. AVERY, USDA APHIS National Wildlife Research Center, Washington, D.C., USA.; ETHEL RODRÍGUEZ, Dirección General de Servicios Agrícolas. Uruguay. Av. Millán 4703. Montevideo, Uruguay. |
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Título : |
Nicarbazin as an oral contraceptive in eared doves. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Crop Protection, Volume 146, August 2021, 105643.[Article in Press]. Doi: https://doi.org/10.1016/j.cropro.2021.105643 |
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DOI : |
10.1016/j.cropro.2021.105643 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 22 December 2020/ Received in revised form 23 March 2021/ Accepted 27 March 2021/ Available online 1 April 2021. Corresponding author: E-mail address: lourdes.m.olivera@gmail.com |
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Contenido : |
Abstract: Eared doves (Zenaida auriculata) are responsible for substantial losses in cereal and oil crops as well as in dairy and feedlot production in the southern cone of South America. Various strategies have been shown to be effective in reducing damage at the farm scale, but in some scenarios, it is necessary to also incorporate population control methods due to excessive bird population size. An alternative approach to reduce pest bird populations is the use of contraceptive methods, minimizing the impact on the environment and non-target populations. Nicarbazin is registered in the United States as a contraceptive for Branta canadensis and Columba livia. The aim of this study was to measure the effect of nicarbazin on the reproductive performance of eared doves in captivity. This study included eleven caged pairs of nesting eared doves in three experimental phases (pre-treatment, treatment, recovery). Each pair was exposed to nicarbazin bait for 4 h per day. The contraceptive used was OvoControlP® (0.5% nicarbazin) ground with a millstone into particles of 0.5?3.0 mm. Daily bait consumption and reproductive variables per pair (egg laying and 14-day-old fledgling) were recorded, and levels of 4,4?dinitrocarbanilide were measured in feces and unhatched eggs. Median consumption was 4.2 g of bait/pair/day. We observed a 62% reduction in the number of viable eggs and successful nestlings in the treatment phasein contrast to pre-treatment (V = 36; p = 0.006). There were no significant differences (V = 0; p = 1) in the number of viable eggs between the pretreatment and recovery phases. Median daily bait consumption by pairs producing zero or one nestling (4.4 and 5.0 g/pair/day respectively) was significantly higher than that of pairs that had two nestlings (3.4 g/pair) during the treatment phase (t = 2.0; p = 0.002). Nicarbazin was effective in reducing reproductive performance of eared doves, and its effect was reversible when the treatment finished. MenosAbstract: Eared doves (Zenaida auriculata) are responsible for substantial losses in cereal and oil crops as well as in dairy and feedlot production in the southern cone of South America. Various strategies have been shown to be effective in reducing damage at the farm scale, but in some scenarios, it is necessary to also incorporate population control methods due to excessive bird population size. An alternative approach to reduce pest bird populations is the use of contraceptive methods, minimizing the impact on the environment and non-target populations. Nicarbazin is registered in the United States as a contraceptive for Branta canadensis and Columba livia. The aim of this study was to measure the effect of nicarbazin on the reproductive performance of eared doves in captivity. This study included eleven caged pairs of nesting eared doves in three experimental phases (pre-treatment, treatment, recovery). Each pair was exposed to nicarbazin bait for 4 h per day. The contraceptive used was OvoControlP® (0.5% nicarbazin) ground with a millstone into particles of 0.5?3.0 mm. Daily bait consumption and reproductive variables per pair (egg laying and 14-day-old fledgling) were recorded, and levels of 4,4?dinitrocarbanilide were measured in feces and unhatched eggs. Median consumption was 4.2 g of bait/pair/day. We observed a 62% reduction in the number of viable eggs and successful nestlings in the treatment phasein contrast to pre-treatment (V = 36; p = 0.006). There were no ... Presentar Todo |
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Palabras claves : |
ANTICONCEPTIVO; REPRODUCTIVE CONTROL; ZENAIDA AURICULATA. |
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Thesagro : |
PALOMA. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02982naa a2200265 a 4500
001 1061994
005 2021-04-26
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1016/j.cropro.2021.105643$2DOI
100 1 $aOLIVERA, L.
245 $aNicarbazin as an oral contraceptive in eared doves.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 22 December 2020/ Received in revised form 23 March 2021/ Accepted 27 March 2021/ Available online 1 April 2021. Corresponding author: E-mail address: lourdes.m.olivera@gmail.com
520 $aAbstract: Eared doves (Zenaida auriculata) are responsible for substantial losses in cereal and oil crops as well as in dairy and feedlot production in the southern cone of South America. Various strategies have been shown to be effective in reducing damage at the farm scale, but in some scenarios, it is necessary to also incorporate population control methods due to excessive bird population size. An alternative approach to reduce pest bird populations is the use of contraceptive methods, minimizing the impact on the environment and non-target populations. Nicarbazin is registered in the United States as a contraceptive for Branta canadensis and Columba livia. The aim of this study was to measure the effect of nicarbazin on the reproductive performance of eared doves in captivity. This study included eleven caged pairs of nesting eared doves in three experimental phases (pre-treatment, treatment, recovery). Each pair was exposed to nicarbazin bait for 4 h per day. The contraceptive used was OvoControlP® (0.5% nicarbazin) ground with a millstone into particles of 0.5?3.0 mm. Daily bait consumption and reproductive variables per pair (egg laying and 14-day-old fledgling) were recorded, and levels of 4,4?dinitrocarbanilide were measured in feces and unhatched eggs. Median consumption was 4.2 g of bait/pair/day. We observed a 62% reduction in the number of viable eggs and successful nestlings in the treatment phasein contrast to pre-treatment (V = 36; p = 0.006). There were no significant differences (V = 0; p = 1) in the number of viable eggs between the pretreatment and recovery phases. Median daily bait consumption by pairs producing zero or one nestling (4.4 and 5.0 g/pair/day respectively) was significantly higher than that of pairs that had two nestlings (3.4 g/pair) during the treatment phase (t = 2.0; p = 0.002). Nicarbazin was effective in reducing reproductive performance of eared doves, and its effect was reversible when the treatment finished.
650 $aPALOMA
653 $aANTICONCEPTIVO
653 $aREPRODUCTIVE CONTROL
653 $aZENAIDA AURICULATA
700 1 $aPEREYRA, S.
700 1 $aBANCHERO, G.
700 1 $aTELLECHEA, G.
700 1 $aSAWCHIK, J.
700 1 $aAVERY, M.L.
700 1 $aRODRÍGUEZ, E.
773 $tCrop Protection, Volume 146, August 2021, 105643.[Article in Press]. Doi: https://doi.org/10.1016/j.cropro.2021.105643
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