| |
|
|
|
Registro completo
|
|
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
|
|
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.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Las Brujas (LB) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
|
Registro completo
|
|
Biblioteca (s) : |
INIA Treinta y Tres. |
|
Fecha actual : |
26/07/2018 |
|
Actualizado : |
26/07/2018 |
|
Tipo de producción científica : |
Actividades de Difusión |
|
Autor : |
INIA TREINTA Y TRES; CARÁMBULA, M.; AYALA, W.; SCAGLIA, G.; SARAVIA, H. (Ed.). |
|
Afiliación : |
ESTACIÓN EXPERIMENTAL DEL ESTE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RÓMULO MILTON CARÁMBULA CAUNEGRE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WALTER FELIZARDO AYALA SILVERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUILLERMO SCAGLIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; HORACIO SARAVIA DIAZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
|
Título : |
Mejoramientos extensivos: manejo y utilización. |
|
Fecha de publicación : |
1995 |
|
Fuente / Imprenta : |
Treinta y Tres (Uruguay): INIA, 1995 |
|
Páginas : |
56 p. |
|
Serie : |
(INIA Serie Actividades de Difusión; 75) |
|
Idioma : |
Español |
|
Thesagro : |
PRODUCCION ANIMAL. |
|
Asunto categoría : |
F02 Propagación de plantas |
|
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/10887/1/Ad-75.pdf
|
|
Marc : |
LEADER 00503nam a2200181 a 4500
001 1058844
005 2018-07-26
008 1995 bl uuuu u00u1 u #d
100 1 $aINIA TREINTA Y TRES
245 $aMejoramientos extensivos$bmanejo y utilización.
260 $aTreinta y Tres (Uruguay): INIA$c1995
300 $a56 p.
490 $a(INIA Serie Actividades de Difusión; 75)
650 $aPRODUCCION ANIMAL
700 1 $aCARÁMBULA, M.
700 1 $aAYALA, W.
700 1 $aSCAGLIA, G.
700 1 $aSARAVIA, H.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Treinta y Tres (TT) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| Expresión de búsqueda válido. Check! |
|
|
