| |
|
|
|
Registro completo
|
|
Biblioteca (s) : |
INIA Treinta y Tres. |
|
Fecha : |
11/11/2019 |
|
Actualizado : |
11/11/2019 |
|
Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
|
Autor : |
LÓPEZ-MAZZ; BALDI, F.; QUINTANS, G.; KENYON, P.R.; CORREA, O.; REGUEIRO, M.; ÁLVAREZ-OXILEY, A.; BANCHERO, G. |
|
Afiliación : |
CARLOS LÓPEZ-MAZZ, Departamento de Producción Animal y Pasturas. Facultad de Agronomía, Montevideo, Uruguay.; FERNANDO BALDI, Facultad de Ciencias Agrarias e Veternárias, Jaboticabal, Sao Paulo, Brazil.; GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; P.R. KENYON, Sheep Research Centre, Institute of Veterinary and Biomedical Sciences. Massey University, Palmerston, North, New Zealand.; O. CORREA, Departamento de Parasitología Veterinaria, Facultad de Veterinaria, Montevideo, Uruguay.; M. REGUEIRO, Departamento de Producción Animal y Pasturas. Facultad de Agronomía, Montevideo, Uruguay.; A. ÁLVAREZ-OXILEY, Departamento de Producción Animal y Pasturas. Facultad de Agronomía, Montevideo, Uruguay.; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
|
Título : |
Efecto sobre el comportamiento productivo, reproductivo y la respuesta al desafío parasitario en corderas cuyas madres fueron esquiladas a los 50 días de gestación. |
|
Fecha de publicación : |
2019 |
|
Fuente / Imprenta : |
In: QUINTANS, G.; IEWDIUKOW, M. (Ed.). Primer Seminario Técnico de Programación Fetal. Montevideo (UY): INIA, 2019. p. 99-109. |
|
Serie : |
(INIA Serie Técnica; 252) |
|
ISSN : |
1688-9266 |
|
Idioma : |
Español |
|
Contenido : |
ABSTRACT
This study evaluated the effect of shearing ewes at 50 day of gestation on the growth, reproductive behavior and response to a gastrointestinal parasite challenge in the
female offspring from weaning (104 d) to 18 months old. Fifty-seven Polwarth female lambs were used, 22 single (S) and 35 twin (T) born to ewes either shorn at 50 days of pregnancy (PS, n = 23) or shorn at 62 days post-partum (U, control, n = 34) resulting in four sub-groups: SPS: single female lambs born to ewes shorn at 50 days of pregnancy (n = 8), SU: single female lambs born to ewes shorn postpartum (n = 14), TPS: twin females lambs born to ewes shorn at 50 days of pregnancy (n = 15) or TU: twin female lambs born to ewes shorn postpartum (n = 20). All progeny was managed together under improved pasture with a minimum forage allowance of 6% live weight on dry matter basis. Body weight, body condition score (BCS) and fecal eggs count was recorded every 14 d from weaning to 18 months of
age. Concentrations of progesterone were measured weekly (from 4 to 10 months of age and from 14 to 18 months of age) to establish the onset of puberty. Ovulation rate (545 ± 1.0 d old) was recorded. Prepartum shearing did not affect the age at puberty or the ovulation rate, but those female lambs born as singles were more precocious (P = 0.03) and heavier (P = 0.02) at puberty than twin born female lambs. Both the average value of parasite egg count (P = 0.07) and the Famacha index (P = 0.02) for the entire study period were lower in female lambs born to prepartum shorn ewes than those born to postpartum shorn ewes. In conclusion, shearing at 50 days of gestation did not affect the growth or the reproductive behavior of female offspring. However, female lambs born from ewe shorn during gestation showed a better response to the parasite challenge, but further research is required to confirm this. MenosABSTRACT
This study evaluated the effect of shearing ewes at 50 day of gestation on the growth, reproductive behavior and response to a gastrointestinal parasite challenge in the
female offspring from weaning (104 d) to 18 months old. Fifty-seven Polwarth female lambs were used, 22 single (S) and 35 twin (T) born to ewes either shorn at 50 days of pregnancy (PS, n = 23) or shorn at 62 days post-partum (U, control, n = 34) resulting in four sub-groups: SPS: single female lambs born to ewes shorn at 50 days of pregnancy (n = 8), SU: single female lambs born to ewes shorn postpartum (n = 14), TPS: twin females lambs born to ewes shorn at 50 days of pregnancy (n = 15) or TU: twin female lambs born to ewes shorn postpartum (n = 20). All progeny was managed together under improved pasture with a minimum forage allowance of 6% live weight on dry matter basis. Body weight, body condition score (BCS) and fecal eggs count was recorded every 14 d from weaning to 18 months of
age. Concentrations of progesterone were measured weekly (from 4 to 10 months of age and from 14 to 18 months of age) to establish the onset of puberty. Ovulation rate (545 ± 1.0 d old) was recorded. Prepartum shearing did not affect the age at puberty or the ovulation rate, but those female lambs born as singles were more precocious (P = 0.03) and heavier (P = 0.02) at puberty than twin born female lambs. Both the average value of parasite egg count (P = 0.07) and the Famacha index (P = 0.02) for the entire study ... Presentar Todo |
|
Palabras claves : |
CORDERAS; CRECIMIENTO; ESQUILA TEMPRANO; INMUNIDAD; REPRODUCCIÓN. |
|
Asunto categoría : |
L53 Fisiología Animal - Reproducción |
|
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13790/1/St-252-p-99-109-Lopez-Mazz.pdf
|
|
Marc : |
LEADER 02845naa a2200289 a 4500
001 1060407
005 2019-11-11
008 2019 bl uuuu u00u1 u #d
022 $a1688-9266
100 1 $aLÓPEZ-MAZZ
245 $aEfecto sobre el comportamiento productivo, reproductivo y la respuesta al desafío parasitario en corderas cuyas madres fueron esquiladas a los 50 días de gestación.$h[electronic resource]
260 $c2019
490 $a(INIA Serie Técnica; 252)
520 $aABSTRACT This study evaluated the effect of shearing ewes at 50 day of gestation on the growth, reproductive behavior and response to a gastrointestinal parasite challenge in the female offspring from weaning (104 d) to 18 months old. Fifty-seven Polwarth female lambs were used, 22 single (S) and 35 twin (T) born to ewes either shorn at 50 days of pregnancy (PS, n = 23) or shorn at 62 days post-partum (U, control, n = 34) resulting in four sub-groups: SPS: single female lambs born to ewes shorn at 50 days of pregnancy (n = 8), SU: single female lambs born to ewes shorn postpartum (n = 14), TPS: twin females lambs born to ewes shorn at 50 days of pregnancy (n = 15) or TU: twin female lambs born to ewes shorn postpartum (n = 20). All progeny was managed together under improved pasture with a minimum forage allowance of 6% live weight on dry matter basis. Body weight, body condition score (BCS) and fecal eggs count was recorded every 14 d from weaning to 18 months of age. Concentrations of progesterone were measured weekly (from 4 to 10 months of age and from 14 to 18 months of age) to establish the onset of puberty. Ovulation rate (545 ± 1.0 d old) was recorded. Prepartum shearing did not affect the age at puberty or the ovulation rate, but those female lambs born as singles were more precocious (P = 0.03) and heavier (P = 0.02) at puberty than twin born female lambs. Both the average value of parasite egg count (P = 0.07) and the Famacha index (P = 0.02) for the entire study period were lower in female lambs born to prepartum shorn ewes than those born to postpartum shorn ewes. In conclusion, shearing at 50 days of gestation did not affect the growth or the reproductive behavior of female offspring. However, female lambs born from ewe shorn during gestation showed a better response to the parasite challenge, but further research is required to confirm this.
653 $aCORDERAS
653 $aCRECIMIENTO
653 $aESQUILA TEMPRANO
653 $aINMUNIDAD
653 $aREPRODUCCIÓN
700 1 $aBALDI, F.
700 1 $aQUINTANS, G.
700 1 $aKENYON, P.R.
700 1 $aCORREA, O.
700 1 $aREGUEIRO, M.
700 1 $aÁLVAREZ-OXILEY, A.
700 1 $aBANCHERO, G.
773 $tIn: QUINTANS, G.; IEWDIUKOW, M. (Ed.). Primer Seminario Técnico de Programación Fetal. Montevideo (UY): INIA, 2019. p. 99-109.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Treinta y Tres (TT) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
|
Registro completo
|
|
Biblioteca (s) : |
INIA Tacuarembó. |
|
Fecha actual : |
02/02/2018 |
|
Actualizado : |
20/09/2019 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Circulación / Nivel : |
Internacional - -- |
|
Autor : |
MARTÍNEZ, G.; GONZÁLEZ, A.; DICKE, M. |
|
Afiliación : |
GONZALO ANIBAL MARTINEZ CROSA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDRÉS GONZÁLEZ, Laboratory of Chemical Ecology, Faculty of Chemistry, Universidad de la República, Uruguay.; MARCEL DICKE, Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands. |
|
Título : |
Effect of the eucalypt lerp psyllid Glycaspis brimblecombei on adult feeding, oviposition-site selection, and offspring performance of the bronze bug, Thaumastocoris peregrinus. |
|
Fecha de publicación : |
2018 |
|
Fuente / Imprenta : |
Entomologia Experimentalis et Applicata, 2018, v. 166, p. 395-401. |
|
DOI : |
10.1111/eea.12645 |
|
Idioma : |
Inglés |
|
Notas : |
6th International Symposium on Insect-Plant Relationships.
Article history: Accepted 5 October 2017//First published: 1 February 2018. |
|
Contenido : |
Oviposition-site selection may be greatly affected by competitive plant-mediated interactions between phytophagous insects but these interactions have been poorly investigated on trees. Here, we evaluated the potential interaction between two invasive pests of Eucalyptus trees, the red gum lerp psyllid, Glycaspis brimblecombeiMoore (Hemiptera, Sternorrhyncha: Aphalaridae), and the bronze bug, Thaumastocoris peregrinusCarpintero et Dellapé (Heteroptera: Thaumastocoridae). We assessed the effect of the co-occurrence of G. brimblecombei on the selection of feeding and oviposition sites by T. peregrinus females using dual-choice bioassays. We compared developmental time and survival of the first instar of nymphs reared on healthy Eucalyptus tereticornisSmith (Myrtaceae) leaves and on leaves infested with the lerp psyllid, either with or without lerps (i.e., white conical sweet-tasting structures, secreted during the nymphal stage). Bronze bug females prefer to oviposit on lerp-carrying leaves but we found no difference in feeding preference when compared to healthy leaves. Infestation with the lerp psyllid hampered nymphal performance in terms of developmental time and survival, although the presence of lerps reverted the effect in survival and shortened the duration of the initial instar. These results display an interaction between these two insect species that affects both the oviposition preference of T. peregrinus females and the nymphal performance. Although there seems to be a discrepancy between mother preference and offspring performance, feeding on the lerps may prove beneficial to the offspring under long-term conditions and multiple infestation by other pests and diseases. MenosOviposition-site selection may be greatly affected by competitive plant-mediated interactions between phytophagous insects but these interactions have been poorly investigated on trees. Here, we evaluated the potential interaction between two invasive pests of Eucalyptus trees, the red gum lerp psyllid, Glycaspis brimblecombeiMoore (Hemiptera, Sternorrhyncha: Aphalaridae), and the bronze bug, Thaumastocoris peregrinusCarpintero et Dellapé (Heteroptera: Thaumastocoridae). We assessed the effect of the co-occurrence of G. brimblecombei on the selection of feeding and oviposition sites by T. peregrinus females using dual-choice bioassays. We compared developmental time and survival of the first instar of nymphs reared on healthy Eucalyptus tereticornisSmith (Myrtaceae) leaves and on leaves infested with the lerp psyllid, either with or without lerps (i.e., white conical sweet-tasting structures, secreted during the nymphal stage). Bronze bug females prefer to oviposit on lerp-carrying leaves but we found no difference in feeding preference when compared to healthy leaves. Infestation with the lerp psyllid hampered nymphal performance in terms of developmental time and survival, although the presence of lerps reverted the effect in survival and shortened the duration of the initial instar. These results display an interaction between these two insect species that affects both the oviposition preference of T. peregrinus females and the nymphal performance. Although there seems to... Presentar Todo |
|
Palabras claves : |
APHALARIDAE; EUCALYPTUS FORESTRY; INTRAGUILD COMPETITION; PREFERENCE-PERFORMANCE; THAUMASTOCORIDAE. |
|
Thesagro : |
EUCALYPTUS; INSECTOS PLAGA; PLAGAS DE LAS PLANTAS. |
|
Asunto categoría : |
H10 Plagas de las plantas |
|
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/10413/1/Entomologia-Martinez-2018.pdf
|
|
Marc : |
LEADER 02718naa a2200265 a 4500
001 1058022
005 2019-09-20
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1111/eea.12645$2DOI
100 1 $aMARTÍNEZ, G.
245 $aEffect of the eucalypt lerp psyllid Glycaspis brimblecombei on adult feeding, oviposition-site selection, and offspring performance of the bronze bug, Thaumastocoris peregrinus.$h[electronic resource]
260 $c2018
500 $a6th International Symposium on Insect-Plant Relationships. Article history: Accepted 5 October 2017//First published: 1 February 2018.
520 $aOviposition-site selection may be greatly affected by competitive plant-mediated interactions between phytophagous insects but these interactions have been poorly investigated on trees. Here, we evaluated the potential interaction between two invasive pests of Eucalyptus trees, the red gum lerp psyllid, Glycaspis brimblecombeiMoore (Hemiptera, Sternorrhyncha: Aphalaridae), and the bronze bug, Thaumastocoris peregrinusCarpintero et Dellapé (Heteroptera: Thaumastocoridae). We assessed the effect of the co-occurrence of G. brimblecombei on the selection of feeding and oviposition sites by T. peregrinus females using dual-choice bioassays. We compared developmental time and survival of the first instar of nymphs reared on healthy Eucalyptus tereticornisSmith (Myrtaceae) leaves and on leaves infested with the lerp psyllid, either with or without lerps (i.e., white conical sweet-tasting structures, secreted during the nymphal stage). Bronze bug females prefer to oviposit on lerp-carrying leaves but we found no difference in feeding preference when compared to healthy leaves. Infestation with the lerp psyllid hampered nymphal performance in terms of developmental time and survival, although the presence of lerps reverted the effect in survival and shortened the duration of the initial instar. These results display an interaction between these two insect species that affects both the oviposition preference of T. peregrinus females and the nymphal performance. Although there seems to be a discrepancy between mother preference and offspring performance, feeding on the lerps may prove beneficial to the offspring under long-term conditions and multiple infestation by other pests and diseases.
650 $aEUCALYPTUS
650 $aINSECTOS PLAGA
650 $aPLAGAS DE LAS PLANTAS
653 $aAPHALARIDAE
653 $aEUCALYPTUS FORESTRY
653 $aINTRAGUILD COMPETITION
653 $aPREFERENCE-PERFORMANCE
653 $aTHAUMASTOCORIDAE
700 1 $aGONZÁLEZ, A.
700 1 $aDICKE, M.
773 $tEntomologia Experimentalis et Applicata, 2018$gv. 166, p. 395-401.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Tacuarembó (TBO) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| Expresión de búsqueda válido. Check! |
|
|
