Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris

Autores
Piña, Carlos Ignacio; Simoncini, Melina Soledad; Larriera, Alejandro
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Since 1990, Proyecto Yacaré (Min. Prod./MUPCN) is developing new technologies and improving/adapting old ones to reduce the production costs for the ranching programs in South America. Previous work evaluated growth rates of Caiman latirostris, the effect of time of collection on hatching success, depredation and temperature effects on incubation, but there is no information about incubation media for the species. In this experiment, we test the effects of two incubation media, vermiculite and grasses ('nesting material'), on hatching success, and hatchling size. We collected nine nests (350 eggs) from natural C. latirostris populations in Santa Fe, Argentina soon after oviposition. In Proyecto Yacaré facilities, each nest was divided in two groups and each one received one of two incubation treatments (vermiculite or nesting material as incubation media). We found no difference in hatching success among the treatments (89% for vermiculite and 87% for nesting material). We observed, but did not measure, that incubation with vermiculite tended to be longer and that hatchlings from this treatment had more unabsorbed abdominal yolk in all the nests used in the experiment. Hatchlings from nesting material treatment were longer (p<0.001) than those incubated in vermiculite, but we found no differences between treatments in body mass. As we found similar hatching success in both treatments (but possibly overestimated in vermiculite), a larger size of hatchlings (which could enhance survivorship as was reported in lizards and turtles) and lower cost, we consider that there is no advantage to the use of vermiculite over nesting material. We recommended nesting material (natural grasses) as incubation media. Future investigations should address how incubation media might modify hatchling performance.
Fil: Piña, Carlos Ignacio. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina. Proyecto Yacare; Argentina
Fil: Simoncini, Melina Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Proyecto Yacare; Argentina
Fil: Larriera, Alejandro. Proyecto Yacare; Argentina
Materia
Caiman Latirostris
Hatching Success
Incubation
Nesting Material
Vermiculite
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/80760
Acceder
id CONICETDig_c081db28ca663390d25b0deddedd5a19
oai_identifier_str oai:ri.conicet.gov.ar:11336/80760
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostrisPiña, Carlos IgnacioSimoncini, Melina SoledadLarriera, AlejandroCaiman LatirostrisHatching SuccessIncubationNesting MaterialVermiculitehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Since 1990, Proyecto Yacaré (Min. Prod./MUPCN) is developing new technologies and improving/adapting old ones to reduce the production costs for the ranching programs in South America. Previous work evaluated growth rates of Caiman latirostris, the effect of time of collection on hatching success, depredation and temperature effects on incubation, but there is no information about incubation media for the species. In this experiment, we test the effects of two incubation media, vermiculite and grasses ('nesting material'), on hatching success, and hatchling size. We collected nine nests (350 eggs) from natural C. latirostris populations in Santa Fe, Argentina soon after oviposition. In Proyecto Yacaré facilities, each nest was divided in two groups and each one received one of two incubation treatments (vermiculite or nesting material as incubation media). We found no difference in hatching success among the treatments (89% for vermiculite and 87% for nesting material). We observed, but did not measure, that incubation with vermiculite tended to be longer and that hatchlings from this treatment had more unabsorbed abdominal yolk in all the nests used in the experiment. Hatchlings from nesting material treatment were longer (p<0.001) than those incubated in vermiculite, but we found no differences between treatments in body mass. As we found similar hatching success in both treatments (but possibly overestimated in vermiculite), a larger size of hatchlings (which could enhance survivorship as was reported in lizards and turtles) and lower cost, we consider that there is no advantage to the use of vermiculite over nesting material. We recommended nesting material (natural grasses) as incubation media. Future investigations should address how incubation media might modify hatchling performance.Fil: Piña, Carlos Ignacio. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina. Proyecto Yacare; ArgentinaFil: Simoncini, Melina Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Proyecto Yacare; ArgentinaFil: Larriera, Alejandro. Proyecto Yacare; ArgentinaElsevier Science2005-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/80760Piña, Carlos Ignacio; Simoncini, Melina Soledad; Larriera, Alejandro; Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris; Elsevier Science; Aquaculture; 246; 1-4; 5-2005; 161-1650044-8486CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0044848604006556info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquaculture.2004.11.013info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:04:51Zoai:ri.conicet.gov.ar:11336/80760instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:04:51.495CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris
title Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris
spellingShingle Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris
Piña, Carlos Ignacio
Caiman Latirostris
Hatching Success
Incubation
Nesting Material
Vermiculite
title_short Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris
title_full Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris
title_fullStr Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris
title_full_unstemmed Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris
title_sort Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris
dc.creator.none.fl_str_mv Piña, Carlos Ignacio
Simoncini, Melina Soledad
Larriera, Alejandro
author Piña, Carlos Ignacio
author_facet Piña, Carlos Ignacio
Simoncini, Melina Soledad
Larriera, Alejandro
author_role author
author2 Simoncini, Melina Soledad
Larriera, Alejandro
author2_role author
author
dc.subject.none.fl_str_mv Caiman Latirostris
Hatching Success
Incubation
Nesting Material
Vermiculite
topic Caiman Latirostris
Hatching Success
Incubation
Nesting Material
Vermiculite
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Since 1990, Proyecto Yacaré (Min. Prod./MUPCN) is developing new technologies and improving/adapting old ones to reduce the production costs for the ranching programs in South America. Previous work evaluated growth rates of Caiman latirostris, the effect of time of collection on hatching success, depredation and temperature effects on incubation, but there is no information about incubation media for the species. In this experiment, we test the effects of two incubation media, vermiculite and grasses ('nesting material'), on hatching success, and hatchling size. We collected nine nests (350 eggs) from natural C. latirostris populations in Santa Fe, Argentina soon after oviposition. In Proyecto Yacaré facilities, each nest was divided in two groups and each one received one of two incubation treatments (vermiculite or nesting material as incubation media). We found no difference in hatching success among the treatments (89% for vermiculite and 87% for nesting material). We observed, but did not measure, that incubation with vermiculite tended to be longer and that hatchlings from this treatment had more unabsorbed abdominal yolk in all the nests used in the experiment. Hatchlings from nesting material treatment were longer (p<0.001) than those incubated in vermiculite, but we found no differences between treatments in body mass. As we found similar hatching success in both treatments (but possibly overestimated in vermiculite), a larger size of hatchlings (which could enhance survivorship as was reported in lizards and turtles) and lower cost, we consider that there is no advantage to the use of vermiculite over nesting material. We recommended nesting material (natural grasses) as incubation media. Future investigations should address how incubation media might modify hatchling performance.
Fil: Piña, Carlos Ignacio. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina. Proyecto Yacare; Argentina
Fil: Simoncini, Melina Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Proyecto Yacare; Argentina
Fil: Larriera, Alejandro. Proyecto Yacare; Argentina
description Since 1990, Proyecto Yacaré (Min. Prod./MUPCN) is developing new technologies and improving/adapting old ones to reduce the production costs for the ranching programs in South America. Previous work evaluated growth rates of Caiman latirostris, the effect of time of collection on hatching success, depredation and temperature effects on incubation, but there is no information about incubation media for the species. In this experiment, we test the effects of two incubation media, vermiculite and grasses ('nesting material'), on hatching success, and hatchling size. We collected nine nests (350 eggs) from natural C. latirostris populations in Santa Fe, Argentina soon after oviposition. In Proyecto Yacaré facilities, each nest was divided in two groups and each one received one of two incubation treatments (vermiculite or nesting material as incubation media). We found no difference in hatching success among the treatments (89% for vermiculite and 87% for nesting material). We observed, but did not measure, that incubation with vermiculite tended to be longer and that hatchlings from this treatment had more unabsorbed abdominal yolk in all the nests used in the experiment. Hatchlings from nesting material treatment were longer (p<0.001) than those incubated in vermiculite, but we found no differences between treatments in body mass. As we found similar hatching success in both treatments (but possibly overestimated in vermiculite), a larger size of hatchlings (which could enhance survivorship as was reported in lizards and turtles) and lower cost, we consider that there is no advantage to the use of vermiculite over nesting material. We recommended nesting material (natural grasses) as incubation media. Future investigations should address how incubation media might modify hatchling performance.
publishDate 2005
dc.date.none.fl_str_mv 2005-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/80760
Piña, Carlos Ignacio; Simoncini, Melina Soledad; Larriera, Alejandro; Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris; Elsevier Science; Aquaculture; 246; 1-4; 5-2005; 161-165
0044-8486
CONICET Digital
CONICET
url http://hdl.handle.net/11336/80760
identifier_str_mv Piña, Carlos Ignacio; Simoncini, Melina Soledad; Larriera, Alejandro; Effects of two different incubation media on hatching success, body mass, and length in Caiman latirostris; Elsevier Science; Aquaculture; 246; 1-4; 5-2005; 161-165
0044-8486
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0044848604006556
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquaculture.2004.11.013
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269879788371968
score 13.13397

Publicaciones similares