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Registros recuperados : 8 | |
6. | | MONTOSSI, F.; HODGSON, J.; MORRIS, S.T.; RISSO, D.; GORDON, I.L. A comparative study of herbage intake, ingestive behaviour and diet selection, and effects of condensed tannins upon body and wool growth in lambs grazing Yorkshire fog (Holcus lanatus) and annual ryegrass (Lolium multiflorum) dominant swards. Journal of Agricultural Science, 2001, v. 136, no. 2, p. 241-251. DOI: https://doi.org/10.1017/S0021859601008668 Article history: Revised MS received 19 April 2000 // .Published online by Cambridge University Press 25 April 2001.Biblioteca(s): INIA Tacuarembó. |
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7. | | MULVANEY, F.J.; MORRIS, S.T.; KENYON, P.R.; MOREL, P.C.H.; WEST, D.M.; VIÑOLES, C.; GLOVER, K.M.M. Comparison between the reproductive performance of ewe hoggets and mature ewes following a progesterone-based oestrus synchronization protocol. New Zealand Journal of Agricultural Research, 2013, v.56, no.4, p. 288-296. 0028-8233 Article history: Received 27 May 2013 // Accepted 5 September 2013.Biblioteca(s): INIA Las Brujas. |
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8. | | CRAIGIE, C.R.; NAVAJAS, E.A.; PURCHAS, R.W.; MALTIN, C.A.; BUNGER, L.; HOSKIN, S.O.; ROSS, D.W.; MORRIS, S.T.; ROEHE, R. A review of the development and use of video image analysis (VIA) for beef carcass evaluation as an alternative to the current EUROP system and other subjective systems. Meat Science, 2012, vol.92, no.4, p.307-318. doi: https://doi.org/10.1016/j.meatsci.2012.05.028 Article history: Received 22 July 2011 / Received in revised form 26 April 2012 / Accepted 31 May 2012.Biblioteca(s): INIA Las Brujas. |
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Registros recuperados : 8 | |
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
|
Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
16/11/2015 |
Actualizado : |
16/11/2015 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
B - 1 |
Autor : |
KENYON, P.R.; VIÑOLES, C.; MORRIS, S.T |
Afiliación : |
CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Effect of teasing by the ram on the onset of puberty in Romney ewe lambs. |
Fecha de publicación : |
2012 |
Fuente / Imprenta : |
New Zealand Journal of Agricultural Research, 2012, v.55, no.3, p. 183-191. |
ISSN : |
N 0028-8233 |
DOI : |
10.1080/00288233.2012.693105 |
Idioma : |
Inglés |
Contenido : |
ABSTRACT.
In two consecutive years (2008 and 2009), ewe lambs that had not attained puberty were allocated to one of two groups (Unteased [n=50 in both years] or Teased [n = 50 in 2008 and n=49 in 2009]) for 17 days (D1 to D17). In 2009, the ovaries of all ewe lambs were examined on D5, D9 and D12 by transrectal ultrasonography. From D18 to D28, crayon-harnessed teaser rams were introduced to both groups each year. In both years a greater proportion (P < 0.05) of Teased than Unteased ewe lambs achieved puberty (based on progesterone concentrations) during D1 to D17 and displayed oestrus during D18 to D28. Teased ewe lambs had larger (P < 0.05) follicle diameters on D9 and D12 compared with the Unteased but differences in corpus luteum sizes were not found (P > 0.05). We have demonstrated that teasing advances the onset of puberty. In ewe lambs that responded to teasing, it appears the response is somewhat delayed in comparison to that observed in mature ewes. |
Palabras claves : |
EWE LAMBS; HOGGETS; PUBERTY; TEASING. |
Thesagro : |
CORDEROS. |
Asunto categoría : |
-- |
Marc : |
LEADER 01626naa a2200229 a 4500 001 1053922 005 2015-11-16 008 2012 bl uuuu u00u1 u #d 022 $aN 0028-8233 024 7 $a10.1080/00288233.2012.693105$2DOI 100 1 $aKENYON, P.R. 245 $aEffect of teasing by the ram on the onset of puberty in Romney ewe lambs.$h[electronic resource] 260 $c2012 520 $aABSTRACT. In two consecutive years (2008 and 2009), ewe lambs that had not attained puberty were allocated to one of two groups (Unteased [n=50 in both years] or Teased [n = 50 in 2008 and n=49 in 2009]) for 17 days (D1 to D17). In 2009, the ovaries of all ewe lambs were examined on D5, D9 and D12 by transrectal ultrasonography. From D18 to D28, crayon-harnessed teaser rams were introduced to both groups each year. In both years a greater proportion (P < 0.05) of Teased than Unteased ewe lambs achieved puberty (based on progesterone concentrations) during D1 to D17 and displayed oestrus during D18 to D28. Teased ewe lambs had larger (P < 0.05) follicle diameters on D9 and D12 compared with the Unteased but differences in corpus luteum sizes were not found (P > 0.05). We have demonstrated that teasing advances the onset of puberty. In ewe lambs that responded to teasing, it appears the response is somewhat delayed in comparison to that observed in mature ewes. 650 $aCORDEROS 653 $aEWE LAMBS 653 $aHOGGETS 653 $aPUBERTY 653 $aTEASING 700 1 $aVIÑOLES, C. 700 1 $aMORRIS, S.T 773 $tNew Zealand Journal of Agricultural Research, 2012$gv.55, no.3, p. 183-191.
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