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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
10/03/2021 |
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Actualizado : |
29/06/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
FERREIRA, G.; CIAPPESONI, G.; CASTELLS, D.; AMARILHO-SILVEIRA, F.; NAVAJAS, E.; GIORELLO, D.; BANCHERO, G.; DE BARBIERI, I. |
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Afiliación : |
GRACIALDA FERREIRA DE FERREIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS GABRIEL CIAPPESONI SCARONE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; D. CASTELLS, Secretariado Uruguayo de la Lana, Florida, Uruguay.; F. AMARILHO-SILVEIRA, Universidade Federal do Rio Grande do Sul, RS, Brasil.; ELLY ANA NAVAJAS VALENTINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DIEGO GERMAN GIORELLO LEITES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUIS IGNACIO DE BARBIERI ETCHEBERRY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Feed conversion efficiency in sheep genetically selected for resistance to gastrointestinal nematodes |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Animal Production Science, 2021, vol. 61(8), pages 754-760. OPEN ACCESS. doi: https://doi.org/10.1071/AN20121 |
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DOI : |
10.1071/AN20121 |
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Idioma : |
Inglés |
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Notas : |
Article history: Submitted: 24 March 2020 Accepted: 12 February 2021 Published online: 10 March 2021. |
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Contenido : |
Abstract: Context. It has been indicated that there might be an antagonism between selection for gastrointestinal nematode resistance and high productivity and feed conversion efficiency in ruminants. Aims. This study aimed to determine whether genetic selection for resistance to gastrointestinal nematodes would alter the feed intake and feed efficiency of sheep with or without an infection of Haemonchus contortus. Methods. Sixty-seven Corriedale lambs (357 14 days old) derived from flocks genetically selected to be resistant
(n = 29) or susceptible (n = 38) to gastrointestinal nematodes (GIN) were evaluated for individual dry-matter intake (DMI), feed conversion ratio (FCR) and residual feed intake (RFI). Considering bodyweight (BW), GIN line and sires, males were allotted to one of three outdoor pens and females to one of two, each pen being equipped with five automated feeding systems and two automatic weighing platforms to record individual feed intake and BW. Feed (lucerne haylage, crude protein 20.5%, metabolisable energy 9.2 MJ/kg DM) and water were offered ad libitum. The experiment was conducted in two periods. First, animals were maintained worm-free (14 days of acclimatisation and 44 days of records) and then, in Period 2 (42 days), animals were artificially infected with 6000 L3 of Haemonchus contortus. Worm egg counts were recorded on Days 9, 23, 27, 30, 42 post-infection. While DMI, FCR, average daily gain and BW were analysed using a generalised linear model including dams age, pen and GIN line as fixed effects, RFI was analysed including only GIN line. Key results. In both periods, GIN line did not have a significant (P > 0.05) effect on DMI, FCR, RFI, average daily gain or BW. Worm egg count was different (P < 0.05) on Day 23 post-infection (Period 2), being higher in susceptible line. Conclusions. The most important finding of this study is that breeding GIN-resistant animals would not have a negative effect on feed conversion efficiency when evaluated as FCR or RFI in 1-year old lambs fed ad libitum with a high-protein diet. Implications. Breeding for resistance to internal nematodes does not affect feed efficiency or productivity. MenosAbstract: Context. It has been indicated that there might be an antagonism between selection for gastrointestinal nematode resistance and high productivity and feed conversion efficiency in ruminants. Aims. This study aimed to determine whether genetic selection for resistance to gastrointestinal nematodes would alter the feed intake and feed efficiency of sheep with or without an infection of Haemonchus contortus. Methods. Sixty-seven Corriedale lambs (357 14 days old) derived from flocks genetically selected to be resistant
(n = 29) or susceptible (n = 38) to gastrointestinal nematodes (GIN) were evaluated for individual dry-matter intake (DMI), feed conversion ratio (FCR) and residual feed intake (RFI). Considering bodyweight (BW), GIN line and sires, males were allotted to one of three outdoor pens and females to one of two, each pen being equipped with five automated feeding systems and two automatic weighing platforms to record individual feed intake and BW. Feed (lucerne haylage, crude protein 20.5%, metabolisable energy 9.2 MJ/kg DM) and water were offered ad libitum. The experiment was conducted in two periods. First, animals were maintained worm-free (14 days of acclimatisation and 44 days of records) and then, in Period 2 (42 days), animals were artificially infected with 6000 L3 of Haemonchus contortus. Worm egg counts were recorded on Days 9, 23, 27, 30, 42 post-infection. While DMI, FCR, average daily gain and BW were analysed using a generalised linear model ... Presentar Todo |
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Palabras claves : |
FEED CONVERSION EFFICIENCY; GASTROINTESTINAL NEMATODES; NEMATODES. |
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Asunto categoría : |
L01 Ganadería |
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URL : |
https://www.publish.csiro.au/an/pdf/AN20121
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Marc : |
LEADER 03132naa a2200265 a 4500
001 1061810
005 2022-06-29
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1071/AN20121$2DOI
100 1 $aFERREIRA, G.
245 $aFeed conversion efficiency in sheep genetically selected for resistance to gastrointestinal nematodes$h[electronic resource]
260 $c2021
500 $aArticle history: Submitted: 24 March 2020 Accepted: 12 February 2021 Published online: 10 March 2021.
520 $aAbstract: Context. It has been indicated that there might be an antagonism between selection for gastrointestinal nematode resistance and high productivity and feed conversion efficiency in ruminants. Aims. This study aimed to determine whether genetic selection for resistance to gastrointestinal nematodes would alter the feed intake and feed efficiency of sheep with or without an infection of Haemonchus contortus. Methods. Sixty-seven Corriedale lambs (357 14 days old) derived from flocks genetically selected to be resistant (n = 29) or susceptible (n = 38) to gastrointestinal nematodes (GIN) were evaluated for individual dry-matter intake (DMI), feed conversion ratio (FCR) and residual feed intake (RFI). Considering bodyweight (BW), GIN line and sires, males were allotted to one of three outdoor pens and females to one of two, each pen being equipped with five automated feeding systems and two automatic weighing platforms to record individual feed intake and BW. Feed (lucerne haylage, crude protein 20.5%, metabolisable energy 9.2 MJ/kg DM) and water were offered ad libitum. The experiment was conducted in two periods. First, animals were maintained worm-free (14 days of acclimatisation and 44 days of records) and then, in Period 2 (42 days), animals were artificially infected with 6000 L3 of Haemonchus contortus. Worm egg counts were recorded on Days 9, 23, 27, 30, 42 post-infection. While DMI, FCR, average daily gain and BW were analysed using a generalised linear model including dams age, pen and GIN line as fixed effects, RFI was analysed including only GIN line. Key results. In both periods, GIN line did not have a significant (P > 0.05) effect on DMI, FCR, RFI, average daily gain or BW. Worm egg count was different (P < 0.05) on Day 23 post-infection (Period 2), being higher in susceptible line. Conclusions. The most important finding of this study is that breeding GIN-resistant animals would not have a negative effect on feed conversion efficiency when evaluated as FCR or RFI in 1-year old lambs fed ad libitum with a high-protein diet. Implications. Breeding for resistance to internal nematodes does not affect feed efficiency or productivity.
653 $aFEED CONVERSION EFFICIENCY
653 $aGASTROINTESTINAL NEMATODES
653 $aNEMATODES
700 1 $aCIAPPESONI, G.
700 1 $aCASTELLS, D.
700 1 $aAMARILHO-SILVEIRA, F.
700 1 $aNAVAJAS, E.
700 1 $aGIORELLO, D.
700 1 $aBANCHERO, G.
700 1 $aDE BARBIERI, I.
773 $tAnimal Production Science, 2021, vol. 61(8), pages 754-760. OPEN ACCESS. doi: https://doi.org/10.1071/AN20121
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Registro original : |
INIA Tacuarembó (TBO) |
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| Registros recuperados : 124 | |
| 1. |  | [FERREIRA, G.]. [Análisis económico]. ln: Jornada Producción Intensiva con Lanares, 1985 nov 8 : La Estanzuela [Memorias]. Montevideo (Uruguay): CIAAB, 1985. p.1-9 (sic).| Biblioteca(s): INIA La Estanzuela. |
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| 4. | | FERREIRA, G. Aspectos económicos de los sistemas de producción ganaderos de basalto. ln: INIA Tacuarembó. Unidad Experimental Glencoe. DÍA DE CAMPO, 10 setiembre, Paysandú, 2009. Producción Animal y Pasturas. Medidas de manejo y alimentación frente a eventos climáticos adversos. Lecciones aprendidas y propuestas a futuro. Tacuarembó (Uruguay): INIA, 2009. p. 37-41 (INIA Serie Actividades de Difusión ; 589)| Biblioteca(s): INIA Tacuarembó. |
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| 6. | | Ferreira, G. Estrategias para valorizar sistemas pastoriles en el marco de políticas de seguridad alimentaria y bienestar animal y social ln: Reunión del Grupo Técnico Regional del Cono Sur en Mejoramiento y Utilización de los Recursos Forrajeros del Area Tropical y Subtropical, Grupo Campos, 20., 2004, Salto, Uruguay Saldanha, S.; Bemhaja, M.; Moliterno, E.; Olmos, F.; Uriarte, G., eds. Sustentabilidad, desarrollo y conservación de los ecosistemas: memorias. Montevideo (Uruguay): Facultad de Agronomía, 2004. p. 85-96 Universidad de la República (Uruguay). Regional Norte. Facultad de Agronomía; Instituto Nacional de Investigación Agropecuaria, Uruguay (INIA)| Biblioteca(s): INIA Tacuarembó. |
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| 7. | | FERREIRA, G. Estudios de mercado de carnes uruguayas en el Reino Unido: carne ecológica y natural. In: Congreso de producción y comercialización de carne : "Del campo al Plato", 2., Montevideo, 2002. Otras presentaciones sobre Carnes: Mitos y Realidades Dr. Eustaquio Montero El público se maneja con conceptos y nociones que se basan en slogans que se transforman en dogmas y terminan modificando el comportamiento alimentario....| Tipo: Presentaciones Orales |
| Biblioteca(s): INIA Tacuarembó. |
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| 10. | | FERREIRA, G. Resultados económicos módulo de invernada. ln: INIA Tacuarembó; Unidad Experimental Glencoe. Producción animal y pasturas en Basalto. Día de campo, 15 noviembre, Paysandú, 2001. Tacuarembó (Uruguay): INIA, 2001. p. 18 (INIA Serie Actividades de Difusión ; 271)| Biblioteca(s): INIA Tacuarembó. |
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| 11. | | FERREIRA, G. Prólogo. Unidad Experimental La Magnolia, 3 abril, 2009. ln: INIA TACUAREMBÓ. Soluciones tecnológicas para la raza Braford: gira técnica. En el marco del CONGRESO MUNDIAL BRAFORD, 4., Punta del Este, Uruguay, 2009. Tacuarembó: INIA, 2009.| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA Tacuarembó. |
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| 12. | | FERREIRA, G. Proyecto regional agroforestal. ln: INIA Tacuarembó. Unidad Experimental "La Magnolia". Día de Campo, 15 de diciembre de 2010, Tacuarembó. Alternativas tecnológicas para suelos de areniscas. Tacuarembó (Uruguay): INIA, 2010. p. 17-20 (INIA Serie Actividades de Difusión ; 633)| Biblioteca(s): INIA Tacuarembó. |
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| 19. | | Ferreira, G.Mederos, A. Estimación de costo/beneficio en el control del footrot ln: Mederos, A.; Ferreira, G.; Montossi, F.; Bonino, J.; Casaretto, A.; Scremini, P.; Gil, A. Estudios sobre footrot ovino en el Uruguay: relevamiento de su prevalencia, evaluación de las pérdidas productivas y económicas. Tacuarembó (Uruguay): INIA, 2001. p. 16-20 (INIA Serie Actividades de Difusión ; 274)| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
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| Registros recuperados : 124 | |
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