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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
10/05/2018 |
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Actualizado : |
29/03/2021 |
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Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
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Autor : |
LEMA, O.M.; AGUILAR, I.; DIONELLO, N.J.L.; CARDOSO, F.F.; RAVAGNOLO, O.; GIMENO, D. |
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Afiliación : |
OSCAR MARIO LEMA QUEIJO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; IGNACIO AGUILAR GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Universidade Federal de Pelotas, Brazil.; Universidade Federal de Pelotas, Brazil./Embrapa Pecuaria Sul, Brazil.; OLGA RAVAGNOLO GUMILA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Facultad de Agronomía, Universidad de la República, Uruguay ./ Secretariado Uruguayo de la Lana, Uruguay. |
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Título : |
Additive, heterotic and recombination losses for direct and maternal effects in growth for British, Continental and Zebu crosses. |
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Fecha de publicación : |
2018 |
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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. |
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Idioma : |
Inglés |
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Contenido : |
Summary: Individual and maternal additive and non-additive effects for weights taken every 3 months from birth to 36 months were estimated for Hereford (H/H), Angus (A/A), Salers (S/S) and Nellore (N/N). For the analysis 45.794 weight records from 4.050 animals (2.036 male and 2.014 females), were used. Data corresponds to 39 different breed combinations, H/H and A/A pure breed and 37 groups whit A/A, S/S and N/N crosses with H/H. Data was grouped into 754 contemporary groups defined by sex, year at birth, calving period, experiment, cow parity and the date of weight. Parameters were estimated through model were genetic crossbreeding effects based on Dickerson full model. British breeds provided improved combinations of additive effects, while Zebu breed provided larger values for heterosis and recombination loss. The benefit of using crossbred females is maintained until 3 years of age for British x British and British x Continental. The benefit is also maintained until 3 years of age for Zebu x British while proportion of British is larger than proportion of Zebu. Additive and non-additive effects relevance are maintained at least until 36 months of age. The best combination for growth until 36 months of age is obtained by F1 N/H females, given the maximum use of maternal heterosis and the use of half of the individual heterosis between these breeds, which compensates the negative additive effects of the Zebu breed. |
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Palabras claves : |
BEEF CATTLE; CROSSBREEDING; NON-ADDITIVE EFFECTS. |
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Thesagro : |
GANADO DE CARNE; MEJORAMIENTO ANIMAL. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/9539/1/Lema-Additive-heterotic-and-recombination-losses-dir-and-mat-eff-in-growth-for-Bt-Cont-and-Zb-crosses.pdf
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Marc : |
LEADER 02265nam a2200229 a 4500
001 1058569
005 2021-03-29
008 2018 bl uuuu u01u1 u #d
100 1 $aLEMA, O.M.
245 $aAdditive, heterotic and recombination losses for direct and maternal effects in growth for British, Continental and Zebu crosses.$h[electronic resource]
260 $aIn: Proceedings of the World Congress on Genetics Applied to Livestock Production, 11., Aotea Centre Auckland, New Zealand: WCGALP, ICAR, 11-16 feb 2018.$c2018
520 $aSummary: Individual and maternal additive and non-additive effects for weights taken every 3 months from birth to 36 months were estimated for Hereford (H/H), Angus (A/A), Salers (S/S) and Nellore (N/N). For the analysis 45.794 weight records from 4.050 animals (2.036 male and 2.014 females), were used. Data corresponds to 39 different breed combinations, H/H and A/A pure breed and 37 groups whit A/A, S/S and N/N crosses with H/H. Data was grouped into 754 contemporary groups defined by sex, year at birth, calving period, experiment, cow parity and the date of weight. Parameters were estimated through model were genetic crossbreeding effects based on Dickerson full model. British breeds provided improved combinations of additive effects, while Zebu breed provided larger values for heterosis and recombination loss. The benefit of using crossbred females is maintained until 3 years of age for British x British and British x Continental. The benefit is also maintained until 3 years of age for Zebu x British while proportion of British is larger than proportion of Zebu. Additive and non-additive effects relevance are maintained at least until 36 months of age. The best combination for growth until 36 months of age is obtained by F1 N/H females, given the maximum use of maternal heterosis and the use of half of the individual heterosis between these breeds, which compensates the negative additive effects of the Zebu breed.
650 $aGANADO DE CARNE
650 $aMEJORAMIENTO ANIMAL
653 $aBEEF CATTLE
653 $aCROSSBREEDING
653 $aNON-ADDITIVE EFFECTS
700 1 $aAGUILAR, I.
700 1 $aDIONELLO, N.J.L.
700 1 $aCARDOSO, F.F.
700 1 $aRAVAGNOLO, O.
700 1 $aGIMENO, D.
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Registro original : |
INIA La Estanzuela (LE) |
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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
15/10/2014 |
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Actualizado : |
31/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
B - 1 |
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Autor : |
INVERNIZZI, C.; RIVAS, F.; BETTUCCI, L. |
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Afiliación : |
FEDERICO RIVAS FRANCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Resistance to Chalkbrood Disease in Apis mellifera L. (Hymenoptera: Apidae) Colonies with Different Hygienic Behaviour. |
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Fecha de publicación : |
2011 |
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Fuente / Imprenta : |
Neotropical Entomology, 2011, v.40, no.1, p.28-34. |
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ISSN : |
1519-566X |
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DOI : |
10.1590/S1519-566X2011000100004 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 03 August 2009 / Accepted 10 June 2010. |
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Contenido : |
ABSTRACT.
Chalkbrood disease affects the larvae of honeybees Apis mellifera L. and is caused by the fungus Ascosphaera apis. Infected larvae die when they are stretched in the cap cell and suffer a gradual hardening that ends in a very hard structure (mummie). Several studies have demonstrated that colonies that express an efficient hygienic behaviour (uncapping of cell and subsequent removal of dead brood) exhibit a higher resistance to the disease. However, it remains unclear whether the advantage of hygienic colonies over less hygienic ones lies in the ability to remove mummies or in the early detection of infected larvae and its cannibalization before they harden. To elucidate this aspect, the hygienic behaviour of 24 colonies, which were subsequently provided with pollen cakes containig a. apis, was evaluated. The number of mummies and the number of partially cannibalized and whole larvae in uncapped cells were recorded. The most hygienic colonies controlled the disease better. These colonies also had a higher tendency to uncap cells that contained infected larvae and cannibalize them. The presence of a. apis in partially cannibalized and whole larvae in uncapped cells indicate that the advantage of hygienic colonies over less hygienic ones lies in the early detection of infected larvae death and their quick removal from the cell before they become mummies.
© 2011 Sociedade Entomológica do Brasil. |
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Palabras claves : |
Ascosphaera apis; Honey bee; Larva; Selection. |
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Thesagro : |
ABEJA MELÍFERA; MIEL DE ABEJA. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 02231naa a2200253 a 4500
001 1051114
005 2019-10-31
008 2011 bl uuuu u00u1 u #d
022 $a1519-566X
024 7 $a10.1590/S1519-566X2011000100004$2DOI
100 1 $aINVERNIZZI, C.
245 $aResistance to Chalkbrood Disease in Apis mellifera L. (Hymenoptera$bApidae) Colonies with Different Hygienic Behaviour.$h[electronic resource]
260 $c2011
500 $aArticle history: Received 03 August 2009 / Accepted 10 June 2010.
520 $aABSTRACT. Chalkbrood disease affects the larvae of honeybees Apis mellifera L. and is caused by the fungus Ascosphaera apis. Infected larvae die when they are stretched in the cap cell and suffer a gradual hardening that ends in a very hard structure (mummie). Several studies have demonstrated that colonies that express an efficient hygienic behaviour (uncapping of cell and subsequent removal of dead brood) exhibit a higher resistance to the disease. However, it remains unclear whether the advantage of hygienic colonies over less hygienic ones lies in the ability to remove mummies or in the early detection of infected larvae and its cannibalization before they harden. To elucidate this aspect, the hygienic behaviour of 24 colonies, which were subsequently provided with pollen cakes containig a. apis, was evaluated. The number of mummies and the number of partially cannibalized and whole larvae in uncapped cells were recorded. The most hygienic colonies controlled the disease better. These colonies also had a higher tendency to uncap cells that contained infected larvae and cannibalize them. The presence of a. apis in partially cannibalized and whole larvae in uncapped cells indicate that the advantage of hygienic colonies over less hygienic ones lies in the early detection of infected larvae death and their quick removal from the cell before they become mummies. © 2011 Sociedade Entomológica do Brasil.
650 $aABEJA MELÍFERA
650 $aMIEL DE ABEJA
653 $aAscosphaera apis
653 $aHoney bee
653 $aLarva
653 $aSelection
700 1 $aRIVAS, F.
700 1 $aBETTUCCI, L.
773 $tNeotropical Entomology, 2011$gv.40, no.1, p.28-34.
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