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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; INIA Tacuarembó. |
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Fecha : |
09/11/2017 |
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Actualizado : |
25/11/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DE BARBIERI, I.; MONTOSSI, F.; VIÑOLES, C.; KENYON, P. R. |
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Afiliación : |
LUIS IGNACIO DE BARBIERI ETCHEBERRY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINA VIÑOLES GIL, Estación Experimental Bernardo Rosengurtt, Universidad de la República, Cerro Largo, Uruguay; PAUL R. KENYON, Sheep Research Centre, Massey University, Palmerston North, New Zealand. |
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Título : |
Time of shearing the ewe not only affects lamb live weight and survival at birth and weaning, but also ewe wool production and quality. |
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Complemento del título : |
Research article. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
New Zealand Journal of Agricultural Research, 2017, p. 1-10. |
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ISSN : |
00288233 |
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DOI : |
10.1080/00288233.2017.1388825 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 16 Jun 201; Accepted 03 Oct 2017; Published online: 24 Oct 2017. |
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Contenido : |
ABSTRACT.
During a four-year period, mature ewes were either shorn in mid-pregnancy or post-partum to study impacts on lamb live weight and survival. Furthermore, placental measurements were collected post-partum from a subset of single-bearing ewes and yearly fleece weights and wool samples were collected from a subset of single- and twin-bearing ewes. Lambs born to ewes shorn in mid-pregnancy were heavier (p < .05) and displayed greater (p < .05) survival than those born from post-partum shorn ewes regardless of litter size. Shearing treatment had no effect (p > .05) on the weight of the placenta, and diameter or the weight of the cotyledons. However, the number of cotyledons was greater (p < .05) in mid-pregnancy than post-partum shorn ewes. Ewes shorn in mid-pregnancy produced lighter (p < .05) fleeces with greater (p < .05) yields. The fleece displayed shorter (p < .05) staple length, stronger staple strength (p < .05), and was less (p < .05) bright with poorer (p < .05) colour than those shorn in post-partum.
© 2017 The Royal Society of New Zealand |
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Palabras claves : |
LAMB BIRTH WEIGHT; LAMB SURVIVAL; MID PREGNANCY; MID-PREGNANCY; PLACENTA; WOOL. |
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Thesagro : |
CORDERO; LANA; OVEJA. |
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Asunto categoría : |
--
L01 Ganadería |
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Marc : |
LEADER 02143naa a2200301 a 4500
001 1057740
005 2019-11-25
008 2017 bl uuuu u00u1 u #d
022 $a00288233
024 7 $a10.1080/00288233.2017.1388825$2DOI
100 1 $aDE BARBIERI, I.
245 $aTime of shearing the ewe not only affects lamb live weight and survival at birth and weaning, but also ewe wool production and quality.$h[electronic resource]
260 $c2017
500 $aArticle history: Received 16 Jun 201; Accepted 03 Oct 2017; Published online: 24 Oct 2017.
520 $aABSTRACT. During a four-year period, mature ewes were either shorn in mid-pregnancy or post-partum to study impacts on lamb live weight and survival. Furthermore, placental measurements were collected post-partum from a subset of single-bearing ewes and yearly fleece weights and wool samples were collected from a subset of single- and twin-bearing ewes. Lambs born to ewes shorn in mid-pregnancy were heavier (p < .05) and displayed greater (p < .05) survival than those born from post-partum shorn ewes regardless of litter size. Shearing treatment had no effect (p > .05) on the weight of the placenta, and diameter or the weight of the cotyledons. However, the number of cotyledons was greater (p < .05) in mid-pregnancy than post-partum shorn ewes. Ewes shorn in mid-pregnancy produced lighter (p < .05) fleeces with greater (p < .05) yields. The fleece displayed shorter (p < .05) staple length, stronger staple strength (p < .05), and was less (p < .05) bright with poorer (p < .05) colour than those shorn in post-partum. © 2017 The Royal Society of New Zealand
650 $aCORDERO
650 $aLANA
650 $aOVEJA
653 $aLAMB BIRTH WEIGHT
653 $aLAMB SURVIVAL
653 $aMID PREGNANCY
653 $aMID-PREGNANCY
653 $aPLACENTA
653 $aWOOL
700 1 $aMONTOSSI, F.
700 1 $aVIÑOLES, C.
700 1 $aKENYON, P. R.
773 $tNew Zealand Journal of Agricultural Research, 2017, p. 1-10.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
28/05/2021 |
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Actualizado : |
31/05/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
-- - -- |
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Autor : |
MARTÍNEZ, G.; LEMA, O.M.; AGUILAR, I.; GIMENO, D.; RAVAGNOLO, O. |
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Afiliación : |
GUILLERMO MARTÍNEZ BOGGIO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; OSCAR MARIO LEMA QUEIJO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; IGNACIO AGUILAR GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DIEGO GIMENO, Secretariado Uruguayo de la Lana (SUL).; OLGA RAVAGNOLO GUMILA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Reproductive performance of Angus, Hereford, Salers and Nellore crossbred females: Additive and non-additive effects. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Journal of Animal Breeding and Genetics, May 2021, art. no. 12553. Doi: https://doi.org/10.1111/jbg.12553 |
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Páginas : |
p.1-10. |
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DOI : |
10.1111/jbg.12553 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 7 December 2020 // Revised: 17 April 2021 // Accepted: 24 April 2021. First published: 18 May 2021.
Corresponding author: guillermo.martinezboggio@gmail.com |
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Contenido : |
Reproductive traits in breeding herds can be improved through crossbreeding, which results in breed differences, heterosis and breed complementarity. The aim of this study was to estimate group additive genetic and dominance effects for three reproductive traits; probability of artificial insemination (AIP); calving success (CS); and days to calving (DC) for Hereford (H), Angus (A), Nellore (N) and Salers (S) breeds under grazing conditions. Data were obtained from an experiment carried out during 1992?2002 by the Faculty of Agronomy, Universidad de la Republica (UdelaR), Uruguay and Caja Notarial de Seguridad Social. The data set contained reproductive information of 1,164 females from 11 different genetic groups (GG) consisting of crosses between H, N, S and A. AIP, CS and DC were examined in first-calf heifers, while CS and DC were examined in second-calf and 3-to 7-year-old cows. Least square means for each GG and group additive genetic and dominance effects were estimated for each trait. F1 crossbreed females performed better for artificial insemination probability than purebred females. Crossbred A/H heifers had the highest AIPs and CS rates, while crossbred N/H 3-to 7-year-old cows recorded the highest averages for CS and DC. Estimates of group additive genetic effects did not differ amongst A, S, N and H; however, dominance increased the AIP and CS of the heifers. |
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Palabras claves : |
ADDITIVE GROUP GENETIC EFFECTS; BEEF CATLLE; CROSSBREEDING; DOMINANCE; REPRODUCTIVE PERFORMANCE. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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Marc : |
LEADER 02411naa a2200265 a 4500
001 1062107
005 2021-05-31
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1111/jbg.12553$2DOI
100 1 $aMARTÍNEZ, G.
245 $aReproductive performance of Angus, Hereford, Salers and Nellore crossbred females$bAdditive and non-additive effects.$h[electronic resource]
260 $c2021
300 $ap.1-10.
500 $aArticle history: Received: 7 December 2020 // Revised: 17 April 2021 // Accepted: 24 April 2021. First published: 18 May 2021. Corresponding author: guillermo.martinezboggio@gmail.com
520 $aReproductive traits in breeding herds can be improved through crossbreeding, which results in breed differences, heterosis and breed complementarity. The aim of this study was to estimate group additive genetic and dominance effects for three reproductive traits; probability of artificial insemination (AIP); calving success (CS); and days to calving (DC) for Hereford (H), Angus (A), Nellore (N) and Salers (S) breeds under grazing conditions. Data were obtained from an experiment carried out during 1992?2002 by the Faculty of Agronomy, Universidad de la Republica (UdelaR), Uruguay and Caja Notarial de Seguridad Social. The data set contained reproductive information of 1,164 females from 11 different genetic groups (GG) consisting of crosses between H, N, S and A. AIP, CS and DC were examined in first-calf heifers, while CS and DC were examined in second-calf and 3-to 7-year-old cows. Least square means for each GG and group additive genetic and dominance effects were estimated for each trait. F1 crossbreed females performed better for artificial insemination probability than purebred females. Crossbred A/H heifers had the highest AIPs and CS rates, while crossbred N/H 3-to 7-year-old cows recorded the highest averages for CS and DC. Estimates of group additive genetic effects did not differ amongst A, S, N and H; however, dominance increased the AIP and CS of the heifers.
653 $aADDITIVE GROUP GENETIC EFFECTS
653 $aBEEF CATLLE
653 $aCROSSBREEDING
653 $aDOMINANCE
653 $aREPRODUCTIVE PERFORMANCE
700 1 $aLEMA, O.M.
700 1 $aAGUILAR, I.
700 1 $aGIMENO, D.
700 1 $aRAVAGNOLO, O.
773 $tJournal of Animal Breeding and Genetics, May 2021, art. no. 12553. Doi: https://doi.org/10.1111/jbg.12553
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