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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
09/09/2019 |
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Actualizado : |
14/10/2019 |
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Tipo de producción científica : |
Abstracts/Resúmenes |
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Autor : |
FERREIRA, G.; DE BARBIERI, I.; CASTELLS, D.; NAVAJAS, E.; GIORELLO, D.; COSTA, J.T.C.; BANCHERO, G.; CIAPPESONI, G. |
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Afiliación : |
GRACIALDA FERREIRA DE FERREIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUIS IGNACIO DE BARBIERI ETCHEBERRY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SUL (Secretariado Uruguayo de la Lana).; 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; CARLOS GABRIEL CIAPPESONI SCARONE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Differences in growth between Corriedale sheep divergent lines for resistance to nematodes. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
In: Annual Meeting of the European Federation of Animal Science, 70., Ghent, Belgium, 26-30 August, 2019. Book of abstracts No. 25. |
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Páginas : |
p. 574 |
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DOI : |
10.3920/978-90-8686-890-2 |
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Idioma : |
Inglés |
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Contenido : |
The association between genetic resistance of lambs to gastrointestinal parasites (GIP) with dry matter intake (DMI) average daily gain (ADG) and residual feed intake (RFI) was studied. Sixty-four Corriedale lambs (357±14 days old), from divergent lines for resistance to GIP (27 resistant-R and 37 susceptible-S) developed by the Uruguayan Wool Secretariat were used. The animals were allotted to one of five outdoor pens, they were stratified by sex, body weight, and sire. Each pen was equipped with five automated feeding systems and two automatic weighing platforms allowing individual records of feed intake and body weight. After 14 days of acclimatization to diet (ad libitum Lucerne silage: DM 36.5%, CP 21.7%, ME 2.51%) and feeding system, two tests were run over two periods of 44 (P1) and 42 days (P2), respectively. Firstly, the animals were maintained worm-free (P1) followed by an artificial
infestation of Haemonchus contortus (P2). The infestation occurred in three consecutive days with 2,000 L3 larvae per day. The second period was split into two subperiods from 0-23 and 24-42 days post infestation (P2a and P2b, respectively). Records for faecal egg count (FEC) were taken in days 9, 23, 27, 30, 42 post infestation. The DMI (kg/ day) was computed as the average of the individual daily intake, ADG (kg/day) was calculated by regression using
all weights for each period, RFI is the residuals resulting from the model DMI = ADG + metabolic weight (defined as mid-weight for each period ^0.75) + pen (1-5) + type of birth (1 or 2). There were no differences between lines in DMI, ADG, RFI for both periods. However, statically significative differences (P<0.05) were found in P2b for ADG and FEC (at day 23). The R line showed higher ADG than S line (0.132±0.017 vs 0.091±0.014 kg/day) and
lower parasite infestation (1,049 vs 2,479 back-transformed FEC mean). Probably, the high CP diet content and the age of the animals contribute to decreasing the differences in FEC between lines. These preliminary results suggest a difference in growth pattern between R&S lines during the infestation period without effects on DMI. MenosThe association between genetic resistance of lambs to gastrointestinal parasites (GIP) with dry matter intake (DMI) average daily gain (ADG) and residual feed intake (RFI) was studied. Sixty-four Corriedale lambs (357±14 days old), from divergent lines for resistance to GIP (27 resistant-R and 37 susceptible-S) developed by the Uruguayan Wool Secretariat were used. The animals were allotted to one of five outdoor pens, they were stratified by sex, body weight, and sire. Each pen was equipped with five automated feeding systems and two automatic weighing platforms allowing individual records of feed intake and body weight. After 14 days of acclimatization to diet (ad libitum Lucerne silage: DM 36.5%, CP 21.7%, ME 2.51%) and feeding system, two tests were run over two periods of 44 (P1) and 42 days (P2), respectively. Firstly, the animals were maintained worm-free (P1) followed by an artificial
infestation of Haemonchus contortus (P2). The infestation occurred in three consecutive days with 2,000 L3 larvae per day. The second period was split into two subperiods from 0-23 and 24-42 days post infestation (P2a and P2b, respectively). Records for faecal egg count (FEC) were taken in days 9, 23, 27, 30, 42 post infestation. The DMI (kg/ day) was computed as the average of the individual daily intake, ADG (kg/day) was calculated by regression using
all weights for each period, RFI is the residuals resulting from the model DMI = ADG + metabolic weight (defined as mid-weight for eac... Presentar Todo |
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Palabras claves : |
SHEEP. |
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Asunto categoría : |
A50 Investigación agraria |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13243/1/De-Barbieri-2019.pdf
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Marc : |
LEADER 02899nam a2200229 a 4500
001 1060142
005 2019-10-14
008 2019 bl uuuu u01u1 u #d
024 7 $a10.3920/978-90-8686-890-2$2DOI
100 1 $aFERREIRA, G.
245 $aDifferences in growth between Corriedale sheep divergent lines for resistance to nematodes.$h[electronic resource]
260 $aIn: Annual Meeting of the European Federation of Animal Science, 70., Ghent, Belgium, 26-30 August, 2019. Book of abstracts No. 25.$c2019
300 $ap. 574
520 $aThe association between genetic resistance of lambs to gastrointestinal parasites (GIP) with dry matter intake (DMI) average daily gain (ADG) and residual feed intake (RFI) was studied. Sixty-four Corriedale lambs (357±14 days old), from divergent lines for resistance to GIP (27 resistant-R and 37 susceptible-S) developed by the Uruguayan Wool Secretariat were used. The animals were allotted to one of five outdoor pens, they were stratified by sex, body weight, and sire. Each pen was equipped with five automated feeding systems and two automatic weighing platforms allowing individual records of feed intake and body weight. After 14 days of acclimatization to diet (ad libitum Lucerne silage: DM 36.5%, CP 21.7%, ME 2.51%) and feeding system, two tests were run over two periods of 44 (P1) and 42 days (P2), respectively. Firstly, the animals were maintained worm-free (P1) followed by an artificial infestation of Haemonchus contortus (P2). The infestation occurred in three consecutive days with 2,000 L3 larvae per day. The second period was split into two subperiods from 0-23 and 24-42 days post infestation (P2a and P2b, respectively). Records for faecal egg count (FEC) were taken in days 9, 23, 27, 30, 42 post infestation. The DMI (kg/ day) was computed as the average of the individual daily intake, ADG (kg/day) was calculated by regression using all weights for each period, RFI is the residuals resulting from the model DMI = ADG + metabolic weight (defined as mid-weight for each period ^0.75) + pen (1-5) + type of birth (1 or 2). There were no differences between lines in DMI, ADG, RFI for both periods. However, statically significative differences (P<0.05) were found in P2b for ADG and FEC (at day 23). The R line showed higher ADG than S line (0.132±0.017 vs 0.091±0.014 kg/day) and lower parasite infestation (1,049 vs 2,479 back-transformed FEC mean). Probably, the high CP diet content and the age of the animals contribute to decreasing the differences in FEC between lines. These preliminary results suggest a difference in growth pattern between R&S lines during the infestation period without effects on DMI.
653 $aSHEEP
700 1 $aDE BARBIERI, I.
700 1 $aCASTELLS, D.
700 1 $aNAVAJAS, E.
700 1 $aGIORELLO, D.
700 1 $aCOSTA, J.T.C.
700 1 $aBANCHERO, G.
700 1 $aCIAPPESONI, G.
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Registro original : |
INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
12/02/2019 |
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Tipo de producción científica : |
Documentos |
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Autor : |
PITTALUGA, O.; BERRETTA, E.J.; RISSO, D. |
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Afiliación : |
OSCAR ALBERTO PITTALUGA GONZALEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ELBIO JOAQUIN BERRETTA CARVALLO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DIEGO FERNANDO RISSO RIET, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Recría de reemplazos en Basalto: B) Efecto de la administración de forraje sobre la velocidad de crecimiento de terneras y vaquillonas en campo natural mejorado de Basalto. |
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Fecha de publicación : |
1994 |
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Fuente / Imprenta : |
In: INIA TACUAREMBÓ. UNIDAD EXPERIMENTAL GLENCOE. JORNADA, 27 DE OCTUBRE, PAYSANDÚ, 1994. Pasturas y producción animal en basalto. Tacuarembó, Uruguay: INIA, 1994. |
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Páginas : |
p. 16-19 |
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Serie : |
(INIA Serie Actividades de Difusión ; 37) |
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Idioma : |
Español |
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Contenido : |
La recría de reemplazo tiene dos fases críticas, tanto en machos como en hembras, que afectan sustancialmente el ciclo productivo y que corresponde al primer y segundo invierno de vida. Tanto al campo natural como los mejoramientos extensivos pueden permitir un crecimiento aceptable en estos períodos, si tenemos en cuenta una presión de pastoreo adecuada, la administración del forraje y el control de la competencia de los ovinos. Considerando estos aspectos se plantearon dos experimentos. Uno sobre campo natural con terneros y novillos y otro sobre mejoramiento en cobertura con terneras y vaquillonas. Este experimento fue realizado en una campo natural mejorado. |
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Palabras claves : |
ANIMAL PRODUCTION; CAMPO NATURAL MEJORADO; GRAZING. |
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Thesagro : |
FORRAJES; PROMOTORES DEL CRECIMIENTO ANIMAL; SUELO BASALTICO; URUGUAY. |
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Asunto categoría : |
L01 Ganadería |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/9425/1/SAD-37p16-19.pdf
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Marc : |
LEADER 01609naa a2200253 a 4500
001 1025149
005 2019-02-12
008 1994 bl uuuu u00u1 u #d
100 1 $aPITTALUGA, O.
245 $aRecría de reemplazos en Basalto$bB) Efecto de la administración de forraje sobre la velocidad de crecimiento de terneras y vaquillonas en campo natural mejorado de Basalto.
260 $c1994
300 $ap. 16-19
490 $a(INIA Serie Actividades de Difusión ; 37)
520 $aLa recría de reemplazo tiene dos fases críticas, tanto en machos como en hembras, que afectan sustancialmente el ciclo productivo y que corresponde al primer y segundo invierno de vida. Tanto al campo natural como los mejoramientos extensivos pueden permitir un crecimiento aceptable en estos períodos, si tenemos en cuenta una presión de pastoreo adecuada, la administración del forraje y el control de la competencia de los ovinos. Considerando estos aspectos se plantearon dos experimentos. Uno sobre campo natural con terneros y novillos y otro sobre mejoramiento en cobertura con terneras y vaquillonas. Este experimento fue realizado en una campo natural mejorado.
650 $aFORRAJES
650 $aPROMOTORES DEL CRECIMIENTO ANIMAL
650 $aSUELO BASALTICO
650 $aURUGUAY
653 $aANIMAL PRODUCTION
653 $aCAMPO NATURAL MEJORADO
653 $aGRAZING
700 1 $aBERRETTA, E.J.
700 1 $aRISSO, D.
773 $tIn: INIA TACUAREMBÓ. UNIDAD EXPERIMENTAL GLENCOE. JORNADA, 27 DE OCTUBRE, PAYSANDÚ, 1994. Pasturas y producción animal en basalto. Tacuarembó, Uruguay: INIA, 1994.
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