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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
31/03/2021 |
Actualizado : |
31/03/2021 |
Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
Autor : |
CIAPPESONI, G.; GOLDBERG, V. |
Afiliación : |
CARLOS GABRIEL CIAPPESONI SCARONE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; VIRGINIA GOLDBERG BIANCHI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Genetic parameters for body weight, worm resistance, packed cell volume and FAMACHA@ under natural infection in Corriedale sheep. |
Complemento del título : |
Volume Electronic Poster Session - Species - Ovine, 351. |
Fecha de publicación : |
2018 |
Fuente / Imprenta : |
In: Proceedings of the World Congress on Genetics Applied to Livestock Production, 11., Aotea Centre Auckland, New Zealand: WCGALP, ICAR, 11-16 feb 2018, 351. |
Idioma : |
Inglés |
Contenido : |
ABSTRACT.
Gastrointestinal parasites (GIP) are one of the main constraint for sheep production worldwide. In Uruguay, the most prevalent and pathogenic parasite is Haemonchus contortus. One approach to control parasite infection is to select genetically resistant animals into a sheep-breeding program. Faecal egg count (FEC) is the criterion most used to evaluate genetic resistance to GIP, although there are alternative indicators that could be used. The aim of the present study was to estimate genetic parameters for body weight, FEC, packed cell volume (PCV) and FAMACHA© score, to determine the possibility to include these traits in the genetic evaluation of GIP resistance, as complementary selection criteria to FEC. Data from 15,073 post-weaned lambs, the offspring of 343 rams, were recorded during a 16-year period from 2000 to 2015, from Uruguayan Corriedale stud flocks. A Bayesian analysis was performed to estimate genetic parameters, using a multivariate animal model including post-weaning body weight (BW), FEC, PCV and FAMACHA©. Heritabilities for these traits were of low to moderate magnitude (0.14 to 0.35). Genetic correlation (rg) was close to zero for FAMACHA©-BW, low but favourable for FEC-BW (-0.12) and FEC-PCV (-0.23), and moderate to high between PCV-BW, PCV-FAMACHA© and FEC-FAMACHA© (0.54-0.73). The high rg between FEC-FAMACHA© estimated in the present study, indicate the possibility to complement both traits in order to select resistant and resilient animal to GIP. There would be an improvement not only at a genetic level but also for the environment and it would help to lead with the problematic situation of anthelmintic resistance. Keywords: Haemonchus contortus, faecal egg count, heritability, genetic correlation. MenosABSTRACT.
Gastrointestinal parasites (GIP) are one of the main constraint for sheep production worldwide. In Uruguay, the most prevalent and pathogenic parasite is Haemonchus contortus. One approach to control parasite infection is to select genetically resistant animals into a sheep-breeding program. Faecal egg count (FEC) is the criterion most used to evaluate genetic resistance to GIP, although there are alternative indicators that could be used. The aim of the present study was to estimate genetic parameters for body weight, FEC, packed cell volume (PCV) and FAMACHA© score, to determine the possibility to include these traits in the genetic evaluation of GIP resistance, as complementary selection criteria to FEC. Data from 15,073 post-weaned lambs, the offspring of 343 rams, were recorded during a 16-year period from 2000 to 2015, from Uruguayan Corriedale stud flocks. A Bayesian analysis was performed to estimate genetic parameters, using a multivariate animal model including post-weaning body weight (BW), FEC, PCV and FAMACHA©. Heritabilities for these traits were of low to moderate magnitude (0.14 to 0.35). Genetic correlation (rg) was close to zero for FAMACHA©-BW, low but favourable for FEC-BW (-0.12) and FEC-PCV (-0.23), and moderate to high between PCV-BW, PCV-FAMACHA© and FEC-FAMACHA© (0.54-0.73). The high rg between FEC-FAMACHA© estimated in the present study, indicate the possibility to complement both traits in order to select resistant and resilient animal to... Presentar Todo |
Palabras claves : |
Faecal egg count; Genetic correlation; Haemonchus contortus; Heritability. |
Asunto categoría : |
L73 Enfermedades de los animales |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15438/1/Ciappesoni-et-al.-2018.-WCGALP.pdf
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Marc : |
LEADER 02451nam a2200169 a 4500 001 1061914 005 2021-03-31 008 2018 bl uuuu u01u1 u #d 100 1 $aCIAPPESONI, G. 245 $aGenetic parameters for body weight, worm resistance, packed cell volume and FAMACHA@ under natural infection in Corriedale sheep.$h[electronic resource] 260 $aIn: Proceedings of the World Congress on Genetics Applied to Livestock Production, 11., Aotea Centre Auckland, New Zealand: WCGALP, ICAR, 11-16 feb 2018, 351.$c2018 520 $aABSTRACT. Gastrointestinal parasites (GIP) are one of the main constraint for sheep production worldwide. In Uruguay, the most prevalent and pathogenic parasite is Haemonchus contortus. One approach to control parasite infection is to select genetically resistant animals into a sheep-breeding program. Faecal egg count (FEC) is the criterion most used to evaluate genetic resistance to GIP, although there are alternative indicators that could be used. The aim of the present study was to estimate genetic parameters for body weight, FEC, packed cell volume (PCV) and FAMACHA© score, to determine the possibility to include these traits in the genetic evaluation of GIP resistance, as complementary selection criteria to FEC. Data from 15,073 post-weaned lambs, the offspring of 343 rams, were recorded during a 16-year period from 2000 to 2015, from Uruguayan Corriedale stud flocks. A Bayesian analysis was performed to estimate genetic parameters, using a multivariate animal model including post-weaning body weight (BW), FEC, PCV and FAMACHA©. Heritabilities for these traits were of low to moderate magnitude (0.14 to 0.35). Genetic correlation (rg) was close to zero for FAMACHA©-BW, low but favourable for FEC-BW (-0.12) and FEC-PCV (-0.23), and moderate to high between PCV-BW, PCV-FAMACHA© and FEC-FAMACHA© (0.54-0.73). The high rg between FEC-FAMACHA© estimated in the present study, indicate the possibility to complement both traits in order to select resistant and resilient animal to GIP. There would be an improvement not only at a genetic level but also for the environment and it would help to lead with the problematic situation of anthelmintic resistance. Keywords: Haemonchus contortus, faecal egg count, heritability, genetic correlation. 653 $aFaecal egg count 653 $aGenetic correlation 653 $aHaemonchus contortus 653 $aHeritability 700 1 $aGOLDBERG, V.
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Registros recuperados : 38 | |
2. | | CIAPPESONI, G.; GOLDBERG, V. Genetic parameters for body weight, worm resistance, packed cell volume and FAMACHA@ under natural infection in Corriedale sheep. Volume Electronic Poster Session - Species - Ovine, 351. In: Proceedings of the World Congress on Genetics Applied to Livestock Production, 11., Aotea Centre Auckland, New Zealand: WCGALP, ICAR, 11-16 feb 2018, 351.Tipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA Las Brujas. |
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7. | | GOLDBERG, V.; CIAPPESONI, G.; GIMENO, D. Estimation of (co)variance components and model comparison for wool traits in Merino sheep. En: Congreso Asociación Uruguaya de Producción Animal (AUPA) (4º, 29-30 Oct. 2012, Montevideo, UY). 2012. [Actas], Montevideo, Uruguay. Veterinaria, 2012, vol. 72, no. 48, Supp. 1, p.120. Congreso publicado en revista arbitrada: Veterinaria (Montevideo)Tipo: Abstracts/Resúmenes |
Biblioteca(s): INIA Las Brujas. |
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13. | | GOLDBERG, V.; MACEDO, F.; CIAPPESONI, G. SNP genotyping for parentage identification in a Merino nucleus and in a commercial Highlander flock. Volume Electronic Poster Session - Genetic Gain - Genotyping & Phenotyping Strategies, , 359. In: Proceedings of the World Congress on Genetics Applied to Livestock Production, 11., Aotea Centre Auckland, New Zealand: WCGALP, ICAR, 11-16 feb 2018, 359.Tipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA Las Brujas. |
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15. | | GOLDBERG, V.; MACEDO, F.; PIERUCCIONI, F.; NAVAJAS, E.; CIAPPESONI, G. Diagnóstico para la presencia de cuernos en ovinos Merino a través del uso de herramientas genómicas. GGM 14 - COMUNICACIONES LIBRES - GGM. GENÓMICA Y GENÉTICA MOLECULAR In: JOURNAL OF BASIC & APPLIED GENETICS, 2016, Vol.27, Iss. 1 (Supp.). XVI LATIN AMERICAN CONGRESS OF GENETICS, IV CONGRESS OF THE URUGUAYAN SOCIETY OF GENETICS, XLIX ANNUAL MEETING OF THE GENETICS SOCIETY OF CHILE, XLV ARGENTINE CONGRESS OF GENETICS, 9-12 October 2016. PROCEEDINGS. Montevideo (Uruguay): SAG, 2016. p. 261Tipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA Las Brujas. |
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19. | | RAVAGNOLO, O.; AGUILAR, I.; LEMA, O.M.; GOLDBERG, V. Genetic parameters for cow weight in pasture fed Hereford cattle. Volume Species Breeding: Beef cattle (Posters), ,760. In: Proceedings of the World Congress on Genetics Applied to Livestock Production, 10., Vancouver, BC, Canada, August 17-22, 2014. p.760.Tipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA Las Brujas. |
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Registros recuperados : 38 | |
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