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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
05/12/2023 |
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Actualizado : |
05/12/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
BÓ, G.A.; MENCHACA, A. |
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Afiliación : |
GABRIEL AMILCAR BÓ, Instituto de Reproducción Animal Córdoba, Córdoba, Argentina; Instituto de Ciencias Básicas, Medicina Veterinaria, Universidad Nacional de Villa María, Villa del Rosario, Córdoba, Argentina; Fundación Instituto Reproducción Animal Uruguay, Mdeo, Uruguay; JOSE ALEJO MENCHACA BARBEITO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Prohibition of hormones in animal reproduction: what to expect and what to do?. |
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Complemento del título : |
Thematic Section: 36th Annual Meeting of the Brazilian Embryo Technology Society (SBTE). |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Animal Reproduction, 2023, Volume 20, Issue 2, e20230067. https://doi.org/10.1590/1984-3143-AR2023-0067 -- OPEN ACCESS. |
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ISSN : |
1806-9614 |
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DOI : |
10.1590/1984-3143-AR2023-0067 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received May 15, 2023; Accepted: July 18, 2023. -- Financial support: GAB received funding for this research from Fondo Nacional de Ciencia y Tecnología (FONCYT PICT 2017-4550), Instituto de Investigación Universidad Nacional de Villa María (UNVM) and Instituto de Reproducción Animal de Córdoba (IRAC). AM is a researcher of the Sistema Nacional de Investigadores (SNI) of Uruguay, and received financial support from Agencia Nacional de Investigación e Innovación (ANII, PR_FMV_3_2016_1_125451), from Fundación IRAUy, and from Instituto Nacional de Investigación Agropecuaria (INIA, Uruguay). -- Document type: Article Gold Open Access, Green Open Access. -- Correspondence: Bó, G.A.; Instituto de Reproducción Animal Córdoba, Córdoba, Argentina; email: gabrielbo62@gmail.com -- License: This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/ ) |
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Contenido : |
As our understanding of ovarian function in cattle has improved, our ability to control it has also increased. The development of Fixed-Time Artificial Insemination (FTAI) protocols at the end of the 20th century has increased exponentially the number of animals inseminated over the last 20 years. The main reasons for this growth were the possibility of obtaining acceptable pregnancy rates without heat detection and, above all, the induction of cyclicity in suckled cows in postpartum anestrus and prepubertal heifers at the beginning of the breeding season. Most FTAI treatments in South America have been based on the use of progesterone (P4) releasing devices and estradiol to synchronize both follicular wave emergence and ovulation, with pregnancy rates ranging from 40 to 60%. These protocols are implemented on a regular basis, allowing producers access to high-quality genetics, and increasing the overall pregnancy rates during the breeding season. In addition, it provided the professionals involved in these programs with a new source of income and the diversification of their practices into activities other than their usual clinical work. Many of these practices are now apparently at risk from restrictions on the use of estradiol by the European Union (EU) and other countries. However, the development of alternative protocols based on GnRH, with P4 devices and eCG and other new products that are not in the market yet will allow us to adapt to the new times that are coming. Logically, the challenge has already been raised and we must learn to use alternative protocols to try to continue increasing the use of this technology in beef and dairy herds. The objective of the present review is to describe the main aspects of banning estradiol in livestock production, the negative impacts on reproductive efficiency, and to present some alternative FTAI protocols for dairy and beef cattle. © The Author(s). MenosAs our understanding of ovarian function in cattle has improved, our ability to control it has also increased. The development of Fixed-Time Artificial Insemination (FTAI) protocols at the end of the 20th century has increased exponentially the number of animals inseminated over the last 20 years. The main reasons for this growth were the possibility of obtaining acceptable pregnancy rates without heat detection and, above all, the induction of cyclicity in suckled cows in postpartum anestrus and prepubertal heifers at the beginning of the breeding season. Most FTAI treatments in South America have been based on the use of progesterone (P4) releasing devices and estradiol to synchronize both follicular wave emergence and ovulation, with pregnancy rates ranging from 40 to 60%. These protocols are implemented on a regular basis, allowing producers access to high-quality genetics, and increasing the overall pregnancy rates during the breeding season. In addition, it provided the professionals involved in these programs with a new source of income and the diversification of their practices into activities other than their usual clinical work. Many of these practices are now apparently at risk from restrictions on the use of estradiol by the European Union (EU) and other countries. However, the development of alternative protocols based on GnRH, with P4 devices and eCG and other new products that are not in the market yet will allow us to adapt to the new times that are coming. L... Presentar Todo |
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Palabras claves : |
ECG; Estradiol; Fixed-time AI; GnRH; Partnership for the goals - Goal 17; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA; Sustainable Development Goals (SDGs). |
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Asunto categoría : |
-- |
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URL : |
https://www.animal-reproduction.org/article/10.1590/1984-3143-AR2023-0067/pdf/animreprod-20-2-e20230067.pdf
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Marc : |
LEADER 03863naa a2200253 a 4500
001 1064386
005 2023-12-05
008 2023 bl uuuu u00u1 u #d
022 $a1806-9614
024 7 $a10.1590/1984-3143-AR2023-0067$2DOI
100 1 $aBÓ, G.A.
245 $aProhibition of hormones in animal reproduction$bwhat to expect and what to do?.$h[electronic resource]
260 $c2023
500 $aArticle history: Received May 15, 2023; Accepted: July 18, 2023. -- Financial support: GAB received funding for this research from Fondo Nacional de Ciencia y Tecnología (FONCYT PICT 2017-4550), Instituto de Investigación Universidad Nacional de Villa María (UNVM) and Instituto de Reproducción Animal de Córdoba (IRAC). AM is a researcher of the Sistema Nacional de Investigadores (SNI) of Uruguay, and received financial support from Agencia Nacional de Investigación e Innovación (ANII, PR_FMV_3_2016_1_125451), from Fundación IRAUy, and from Instituto Nacional de Investigación Agropecuaria (INIA, Uruguay). -- Document type: Article Gold Open Access, Green Open Access. -- Correspondence: Bó, G.A.; Instituto de Reproducción Animal Córdoba, Córdoba, Argentina; email: gabrielbo62@gmail.com -- License: This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/ )
520 $aAs our understanding of ovarian function in cattle has improved, our ability to control it has also increased. The development of Fixed-Time Artificial Insemination (FTAI) protocols at the end of the 20th century has increased exponentially the number of animals inseminated over the last 20 years. The main reasons for this growth were the possibility of obtaining acceptable pregnancy rates without heat detection and, above all, the induction of cyclicity in suckled cows in postpartum anestrus and prepubertal heifers at the beginning of the breeding season. Most FTAI treatments in South America have been based on the use of progesterone (P4) releasing devices and estradiol to synchronize both follicular wave emergence and ovulation, with pregnancy rates ranging from 40 to 60%. These protocols are implemented on a regular basis, allowing producers access to high-quality genetics, and increasing the overall pregnancy rates during the breeding season. In addition, it provided the professionals involved in these programs with a new source of income and the diversification of their practices into activities other than their usual clinical work. Many of these practices are now apparently at risk from restrictions on the use of estradiol by the European Union (EU) and other countries. However, the development of alternative protocols based on GnRH, with P4 devices and eCG and other new products that are not in the market yet will allow us to adapt to the new times that are coming. Logically, the challenge has already been raised and we must learn to use alternative protocols to try to continue increasing the use of this technology in beef and dairy herds. The objective of the present review is to describe the main aspects of banning estradiol in livestock production, the negative impacts on reproductive efficiency, and to present some alternative FTAI protocols for dairy and beef cattle. © The Author(s).
653 $aECG
653 $aEstradiol
653 $aFixed-time AI
653 $aGnRH
653 $aPartnership for the goals - Goal 17
653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA
653 $aSustainable Development Goals (SDGs)
700 1 $aMENCHACA, A.
773 $tAnimal Reproduction, 2023, Volume 20, Issue 2, e20230067. https://doi.org/10.1590/1984-3143-AR2023-0067 -- OPEN ACCESS.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
02/12/2022 |
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Actualizado : |
02/12/2022 |
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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 : |
DE LOS SANTOS, R.; GONZÁLEZ-REVELLO, Á.; MAJUL, L.; UMPIÉRREZ, A.; ALDROVANDI, A.; GIL, A.; HIRIGOYEN, D.; ZUNINO, P. |
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Afiliación : |
ROSARIO DE LOS SANTOS, Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; ÁLVARO GONZÁLEZ-REVELLO, Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; LUCÍA MAJUL, Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; ANA UMPIÉRREZ, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay; ARIEL ALDROVANDI, Departamento de Calidad Alimentaria, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; ANDRÉS GIL, Departamento de Bioestadística e Informática, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; DARÍO JAVIER HIRIGOYEN TREVIN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, Universidad de la República (UdelaR), Montevideo, Uruguay; PABLO ZUNINO, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay. |
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Título : |
Subclinical bovine mastitis associated with Staphylococcusspp. in eleven Uruguayan dairy farms. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Journal of Infection in Developing Countries, April 2022, Volume 16, Issue 4, Pages 630-637. OPEN ACCESS. doi: https://doi.org/10.3855/jidc.12960 |
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ISSN : |
2036-6590 |
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DOI : |
10.3855/jidc.12960 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 05 May 2020; Accepted 11 February 2022. -- Corresponding author: de los Santos, R.; Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, UdelaR Lasplaces 1550, Montevideo, Uruguay; email:rosario.rdelos@gmail.com -- LICENSE:
This work is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/ ) -- |
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Contenido : |
ABSTRACT.- Introduction: Bovine mastitis is the most common disease affecting the dairy industry, with staphylococci being considered as one of the most significant and prevalent causes. This study aimed to assess the presence of staphylococcal subclinical mastitis (SCM) in Uruguayan dairy farms and to identify Staphylococcus aureus (SA) and non-aureus staphylococci (NAS) in milking cows. In addition, the antibiotic susceptibility of isolated staphylococci was evaluated. Methodology: We tested 546 apparently healthy milking cows from 11 farms for detecting SCM using the California Mastitis Test (CMT). The cows were not treated with antibiotics. CMT-positive samples were cultured, and colonies compatible with Staphylococcus spp. were further identified through molecular techniques. The susceptibility of the Staphylococcus spp. isolates against thirteen antibiotics was determined using the disk diffusion method. Results: Subclinical staphylococcal mastitis was present in almost all (82%) farms. SA (n = 39) was more common than NAS (n = 9) in the 48 samples tested. Isolates exhibited resistance to one, two, and even three different antibiotics. Resistance to penicillin was the most frequent among SA (23/39) and NAS (4/9). No staphylococci isolates exhibited resistance to cefoxitin, vancomycin, trimethoprim-sulfamethoxazole, erythromycin, or clindamycin. Conclusions: Staphylococcal SCM is one of the most common diseases in Uruguayan dairy farms. SA was the prevalent pathogen, however SA and NAS mastitis coexisted in many farms. NAS were identified and its distribution was similar to other countries. Penicillin had the highest and most frequent percentage of resistance. Copyright © 2022 de los Santos et al. MenosABSTRACT.- Introduction: Bovine mastitis is the most common disease affecting the dairy industry, with staphylococci being considered as one of the most significant and prevalent causes. This study aimed to assess the presence of staphylococcal subclinical mastitis (SCM) in Uruguayan dairy farms and to identify Staphylococcus aureus (SA) and non-aureus staphylococci (NAS) in milking cows. In addition, the antibiotic susceptibility of isolated staphylococci was evaluated. Methodology: We tested 546 apparently healthy milking cows from 11 farms for detecting SCM using the California Mastitis Test (CMT). The cows were not treated with antibiotics. CMT-positive samples were cultured, and colonies compatible with Staphylococcus spp. were further identified through molecular techniques. The susceptibility of the Staphylococcus spp. isolates against thirteen antibiotics was determined using the disk diffusion method. Results: Subclinical staphylococcal mastitis was present in almost all (82%) farms. SA (n = 39) was more common than NAS (n = 9) in the 48 samples tested. Isolates exhibited resistance to one, two, and even three different antibiotics. Resistance to penicillin was the most frequent among SA (23/39) and NAS (4/9). No staphylococci isolates exhibited resistance to cefoxitin, vancomycin, trimethoprim-sulfamethoxazole, erythromycin, or clindamycin. Conclusions: Staphylococcal SCM is one of the most common diseases in Uruguayan dairy farms. SA was the prevalent pathogen, ho... Presentar Todo |
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Palabras claves : |
Antibiotic resistance; Dairy cattle; Staphylococci; URUGUAY. |
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Asunto categoría : |
L20 Ecología animal |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16901/1/12960-Article-Text-150036-1-10-20220510.pdf
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Marc : |
LEADER 03044naa a2200289 a 4500
001 1063813
005 2022-12-02
008 2022 bl uuuu u00u1 u #d
022 $a2036-6590
024 7 $a10.3855/jidc.12960$2DOI
100 1 $aDE LOS SANTOS, R.
245 $aSubclinical bovine mastitis associated with Staphylococcusspp. in eleven Uruguayan dairy farms.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 05 May 2020; Accepted 11 February 2022. -- Corresponding author: de los Santos, R.; Departamento de Ciencia y Tecnología de la Leche, Facultad de Veterinaria, UdelaR Lasplaces 1550, Montevideo, Uruguay; email:rosario.rdelos@gmail.com -- LICENSE: This work is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/ ) --
520 $aABSTRACT.- Introduction: Bovine mastitis is the most common disease affecting the dairy industry, with staphylococci being considered as one of the most significant and prevalent causes. This study aimed to assess the presence of staphylococcal subclinical mastitis (SCM) in Uruguayan dairy farms and to identify Staphylococcus aureus (SA) and non-aureus staphylococci (NAS) in milking cows. In addition, the antibiotic susceptibility of isolated staphylococci was evaluated. Methodology: We tested 546 apparently healthy milking cows from 11 farms for detecting SCM using the California Mastitis Test (CMT). The cows were not treated with antibiotics. CMT-positive samples were cultured, and colonies compatible with Staphylococcus spp. were further identified through molecular techniques. The susceptibility of the Staphylococcus spp. isolates against thirteen antibiotics was determined using the disk diffusion method. Results: Subclinical staphylococcal mastitis was present in almost all (82%) farms. SA (n = 39) was more common than NAS (n = 9) in the 48 samples tested. Isolates exhibited resistance to one, two, and even three different antibiotics. Resistance to penicillin was the most frequent among SA (23/39) and NAS (4/9). No staphylococci isolates exhibited resistance to cefoxitin, vancomycin, trimethoprim-sulfamethoxazole, erythromycin, or clindamycin. Conclusions: Staphylococcal SCM is one of the most common diseases in Uruguayan dairy farms. SA was the prevalent pathogen, however SA and NAS mastitis coexisted in many farms. NAS were identified and its distribution was similar to other countries. Penicillin had the highest and most frequent percentage of resistance. Copyright © 2022 de los Santos et al.
653 $aAntibiotic resistance
653 $aDairy cattle
653 $aStaphylococci
653 $aURUGUAY
700 1 $aGONZÁLEZ-REVELLO, Á.
700 1 $aMAJUL, L.
700 1 $aUMPIÉRREZ, A.
700 1 $aALDROVANDI, A.
700 1 $aGIL, A.
700 1 $aHIRIGOYEN, D.
700 1 $aZUNINO, P.
773 $tJournal of Infection in Developing Countries, April 2022, Volume 16, Issue 4, Pages 630-637. OPEN ACCESS. doi: https://doi.org/10.3855/jidc.12960
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