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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
07/11/2018 |
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Actualizado : |
07/11/2018 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DAMIÁN, J.P.; HÖTZEL ,M.J.; BANCHERO, G.; UNGERFELD, R. |
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Afiliación : |
JUAN PABLO DAMIÁN, UdelaR (Universidad de la República), FVET ( Facultad de Veterinaria), Montevideo, Uruguay.; MARIA JOSÉ HÖTZEL, Laboratório de Etologia Aplicada e Bem-Estar Animal, Departamento de Zootecnia e Desenvolvimento Rural, Universidade Federal de Santa Catarina, Brazil.; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RODOLFO UNGERFELD, UdelaR (Universidad de la República), FVET ( Facultad de Veterinaria), Montevideo, Uruguay. |
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Título : |
Growing without a mother during rearing affects the response to stressors in rams. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Applied Animal Behaviour Science, December 2018, volumen 209, pages 36-40. |
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DOI : |
10.1016/j.applanim.2018.08.022 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 18 September 2017 // Received in revised form 7 August 2018 // Accepted 31 August 2018 // Available online 05 September 2018. |
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Contenido : |
ABSTRACT.
Early maternal care contributes to the normal development of the physiological, social and emotional functions of the offspring. As sheep are a strongly gregarious species, separation and isolation of an individual from the flock provokes fear and, consequently a stress response. The first aim of this study was to compare the stress response to social isolation of rams that were reared by their mothers or artificially reared. A complementary objective was to compare the cortisol response to an ACTH challenge in both groups of rams. Rams were: 1) separated from their dams 24?36 h after birth (Week 0) and artificially fed with sheep milk until Week 10 (group AR, n = 14); or 2) reared by their dams until Week 10 (group DR, n = 13). The rams were then kept in separate, adjacent paddocks for the rest of the study. When they were 8 months old, 10 animals randomly selected from each group were isolated from the group in an unfamiliar pen during 10 min. Behavioural (the number of lines crossed, frequencies of vocalizations, eliminations, sniffing, escape attempts and freezing), physiological (heart and respiratory rate, and rectal temperature), biochemical (total blood proteins, globulins and albumin), and endocrine (serum cortisol concentrations) variables were recorded. Dam-reared rams eliminated (defecations + urinations) more times and crossed more lines during the social isolation test than AR lambs (P < 0.05). The increase in total proteins and albumin concentration after the social isolation test was also greater in DR than AR rams (P = 0.01 and P < 0.01 respectively). Artificially-reared rams had greater globulin concentration than DR rams after the test (P = 0.04). When rams were 2 years old, ACTH was administered to 10 rams randomly selected from each group, and the cortisol response was measured. Dam-reared rams had greater cortisol concentrations than AR rams at 150 and 180 min after the administration of ACTH (P < 0.05). In conclusion, artificially reared rams were less affected by social isolation and had lower adrenal response to an ACTH challenge than rams reared by their mothers. This study suggests that the relationship with the mother plays a key role in the development of rams? social behaviour. © 2018 Elsevier B.V. MenosABSTRACT.
Early maternal care contributes to the normal development of the physiological, social and emotional functions of the offspring. As sheep are a strongly gregarious species, separation and isolation of an individual from the flock provokes fear and, consequently a stress response. The first aim of this study was to compare the stress response to social isolation of rams that were reared by their mothers or artificially reared. A complementary objective was to compare the cortisol response to an ACTH challenge in both groups of rams. Rams were: 1) separated from their dams 24?36 h after birth (Week 0) and artificially fed with sheep milk until Week 10 (group AR, n = 14); or 2) reared by their dams until Week 10 (group DR, n = 13). The rams were then kept in separate, adjacent paddocks for the rest of the study. When they were 8 months old, 10 animals randomly selected from each group were isolated from the group in an unfamiliar pen during 10 min. Behavioural (the number of lines crossed, frequencies of vocalizations, eliminations, sniffing, escape attempts and freezing), physiological (heart and respiratory rate, and rectal temperature), biochemical (total blood proteins, globulins and albumin), and endocrine (serum cortisol concentrations) variables were recorded. Dam-reared rams eliminated (defecations + urinations) more times and crossed more lines during the social isolation test than AR lambs (P < 0.05). The increase in total proteins and albumin concentration ... Presentar Todo |
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Palabras claves : |
CORTISOL; MOTHER-OFFSPRING BOND; SHEEP; STRESS. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03098naa a2200229 a 4500
001 1059281
005 2018-11-07
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1016/j.applanim.2018.08.022$2DOI
100 1 $aDAMIÁN, J.P.
245 $aGrowing without a mother during rearing affects the response to stressors in rams.$h[electronic resource]
260 $c2018
500 $aArticle history: Received 18 September 2017 // Received in revised form 7 August 2018 // Accepted 31 August 2018 // Available online 05 September 2018.
520 $aABSTRACT. Early maternal care contributes to the normal development of the physiological, social and emotional functions of the offspring. As sheep are a strongly gregarious species, separation and isolation of an individual from the flock provokes fear and, consequently a stress response. The first aim of this study was to compare the stress response to social isolation of rams that were reared by their mothers or artificially reared. A complementary objective was to compare the cortisol response to an ACTH challenge in both groups of rams. Rams were: 1) separated from their dams 24?36 h after birth (Week 0) and artificially fed with sheep milk until Week 10 (group AR, n = 14); or 2) reared by their dams until Week 10 (group DR, n = 13). The rams were then kept in separate, adjacent paddocks for the rest of the study. When they were 8 months old, 10 animals randomly selected from each group were isolated from the group in an unfamiliar pen during 10 min. Behavioural (the number of lines crossed, frequencies of vocalizations, eliminations, sniffing, escape attempts and freezing), physiological (heart and respiratory rate, and rectal temperature), biochemical (total blood proteins, globulins and albumin), and endocrine (serum cortisol concentrations) variables were recorded. Dam-reared rams eliminated (defecations + urinations) more times and crossed more lines during the social isolation test than AR lambs (P < 0.05). The increase in total proteins and albumin concentration after the social isolation test was also greater in DR than AR rams (P = 0.01 and P < 0.01 respectively). Artificially-reared rams had greater globulin concentration than DR rams after the test (P = 0.04). When rams were 2 years old, ACTH was administered to 10 rams randomly selected from each group, and the cortisol response was measured. Dam-reared rams had greater cortisol concentrations than AR rams at 150 and 180 min after the administration of ACTH (P < 0.05). In conclusion, artificially reared rams were less affected by social isolation and had lower adrenal response to an ACTH challenge than rams reared by their mothers. This study suggests that the relationship with the mother plays a key role in the development of rams? social behaviour. © 2018 Elsevier B.V.
653 $aCORTISOL
653 $aMOTHER-OFFSPRING BOND
653 $aSHEEP
653 $aSTRESS
700 1 $aHÖTZEL ,M.J.
700 1 $aBANCHERO, G.
700 1 $aUNGERFELD, R.
773 $tApplied Animal Behaviour Science, December 2018, volumen 209, pages 36-40.
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Registro original : |
INIA La Estanzuela (LE) |
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
04/04/2019 |
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Actualizado : |
04/07/2019 |
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Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
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Autor : |
CUHNA, F.; DE NAVA, G.; SANTA CRUZ TORRES, R.; VIÑOLES, C. |
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Afiliación : |
FERNANDO CUHNA, Profesión liberal.; GUILLERMO DE NAVA, Profesión liberal.; RODRIGO SANTA CRUZ TORRES, Programa Nacional de Investigación Producción Carne y Lana, INIA Tacuarembó. Polo Agroforestal, UdelaR, EEBR, Cerro Largo.; CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Uso del recuento folicular a campo. Impacto del recuento de folículos antrales sobre la fertilidad de vaquillonas para carne. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
In: VIÑOLES, C.; SANTA CRUZ TORRES, R. (Eds.). Recuento de folículos antrales y concentraciones de hormona anti-Mülleriana: dos potenciales herramientas de selección de reemplazos //Antral follicle count and anti-Müllerian hormone concentrations: two potential replacement selection tools. Montevideo (UY): INIA, 2019. |
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Serie : |
(INIA Serie Técnica; 249) |
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ISBN : |
978-9974-38-420-0 |
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DOI : |
http://doi.org/10.35676/INIA/ST.249 |
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Idioma : |
Español |
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Contenido : |
El recuento de folículos antrales (RFA) está asociado con la fertilidad (Evans et al., 2012). Vacas lecheras con bajo RFA tienen una menor performance reproductiva, expresada por un incremento en los días entre el parto y el primer servicio y entre el parto y la concepción (Martinez et al., 2016). Investigaciones sobre el RFA y fertilidad en ganado de carne son muy escasas en el mundo. Estudios en ésta temática podrían revelar asociaciones con importantes implicancias en la selección de vaquillonas de reposición en los rodeos de cría. En vaquillonas para carne, el RFA está relacionado con el momento de la concepción, aspecto relevante en la productividad y longevidad de las vacas (Cushman et al., 2013). Otro aspecto importante es que ésta herramienta se ha utilizado para seleccionar vaquillonas que son servidas por primera vez a los 14 meses de edad, en sistemas de producción intensivos. En este trabajo nos planteamos la hipótesis de que el RFA está relacionado con el comportamiento
reproductivo en el primer servicio con 24 meses de vaquillonas de razas carniceras manejadas en las condiciones de explotación de Uruguay, y que esta información podría utilizarse para rechazar vaquillonas antes del servicio y mejorar el desempeño reproductivo del rodeo de cría. |
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Palabras claves : |
ANIMAL REPRODUCTION; COMPORTAMIENTO REPRODUCTIVO; FERTILIDAD; RECUENTO DE FOLÍCULOS ANTRALES. |
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Asunto categoría : |
L01 Ganadería |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12586/1/st-249p39-42-2019.pdf
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Marc : |
LEADER 02351naa a2200241 a 4500
001 1059685
005 2019-07-04
008 2019 bl uuuu u00u1 u #d
020 $a978-9974-38-420-0
024 7 $ahttp://doi.org/10.35676/INIA/ST.249$2DOI
100 1 $aCUHNA, F.
245 $aUso del recuento folicular a campo. Impacto del recuento de folículos antrales sobre la fertilidad de vaquillonas para carne.
260 $c2019
490 $a(INIA Serie Técnica; 249)
520 $aEl recuento de folículos antrales (RFA) está asociado con la fertilidad (Evans et al., 2012). Vacas lecheras con bajo RFA tienen una menor performance reproductiva, expresada por un incremento en los días entre el parto y el primer servicio y entre el parto y la concepción (Martinez et al., 2016). Investigaciones sobre el RFA y fertilidad en ganado de carne son muy escasas en el mundo. Estudios en ésta temática podrían revelar asociaciones con importantes implicancias en la selección de vaquillonas de reposición en los rodeos de cría. En vaquillonas para carne, el RFA está relacionado con el momento de la concepción, aspecto relevante en la productividad y longevidad de las vacas (Cushman et al., 2013). Otro aspecto importante es que ésta herramienta se ha utilizado para seleccionar vaquillonas que son servidas por primera vez a los 14 meses de edad, en sistemas de producción intensivos. En este trabajo nos planteamos la hipótesis de que el RFA está relacionado con el comportamiento reproductivo en el primer servicio con 24 meses de vaquillonas de razas carniceras manejadas en las condiciones de explotación de Uruguay, y que esta información podría utilizarse para rechazar vaquillonas antes del servicio y mejorar el desempeño reproductivo del rodeo de cría.
653 $aANIMAL REPRODUCTION
653 $aCOMPORTAMIENTO REPRODUCTIVO
653 $aFERTILIDAD
653 $aRECUENTO DE FOLÍCULOS ANTRALES
700 1 $aDE NAVA, G.
700 1 $aSANTA CRUZ TORRES, R.
700 1 $aVIÑOLES, C.
773 $tIn: VIÑOLES, C.; SANTA CRUZ TORRES, R. (Eds.). Recuento de folículos antrales y concentraciones de hormona anti-Mülleriana: dos potenciales herramientas de selección de reemplazos //Antral follicle count and anti-Müllerian hormone concentrations: two potential replacement selection tools. Montevideo (UY): INIA, 2019.
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