02724naa a2200241 a 450000100080000000500110000800800410001902400430006010000200010324501440012326000090026750009470027652009730122365000220219665300220221865300180224065300190225865300180227770000170229570000170231270000170232977301360234610500052020-05-13       2014    bl uuuu     u00u1 u    #d7 a10.1016/j.smallrumres.2014.03.0042DOI1 aDE BARBIERI, I.  aEffect of shearing ewes during mid-and late-pregnancy on lambs weight at birth and survival to weaning under grazing conditions in Uruguay.  c2014  aArticle history:Received 7 September 2013; Received in revised form 11 March 2014; Accepted 14 March 2014;Available online 25 March 2014 . Acknowledgements: The authors thank the dedication, effort and compromise of the following farmers, and their families and staffinvolved in the present study: A. Dighiero (El AlgarroboStation), R. Ferro (El Mirador Station), A. Fraschini (El Gaucho Station), J. L. Galimberti (El Pescadero Station),O. Martigani (La Acacia Station), and J. Silva (El Algarrobo Station). In addition, we thank A. Dighiero (son), C. Silveira, R. San Julián, S. Luzardo, P. Platero, M. Nolla y A.Mederos for their technical support and invaluable workeither at the field or lab. Lastly, we thank the sheep farmercooperative Central Lanera Uruguaya for its support during the development of this study, and in particular to R.Irigoyen given his key role as an institutional counterpartalong the three years of this project.  aDuring a three-year period on commercial farms in Uruguay mature ewes and hoggets wereeither shorn in mid- or late-pregnancy to examine for effects on lamb live weight and sur-vival to weaning. The study included singleton- and twin-bearing ewes and single bearinghoggets and their lambs. Lambs born to mature ewes and hoggets shorn in mid pregnancywere heavier (P < 0.05) at birth than those born from ewes shorn in late pregnancy. Theweaning weight of lambs born from twin bearing ewes and single bearing hoggets did notdiffer between the shearing treatments (P > 0.05). Shearing treatment had an inconsistenteffect on the weaning weight of lambs born to singleton bearing ewes. Shearing treatmenthad no effect on lamb survival to weaning in all groups (P > 0.05). Combined these resultssuggest there is little scope to increase lamb performance to weaning by shearing ewesand hoggets at mid pregnancy compared to late pregnancy under Uruguayan commercialconditions.  aPRODUCCION ANIMAL  aLAMB BIRTH WEIGHT  aLAMB SURVIVAL  aLATE PREGNANCY  aMID PREGNANCY1 aMONTOSSI, F.1 aVIÑOLES, C.1 aKENYON, P.R.  tSmall Ruminant Research, Volume 119, Issues 1–3, June 2014, Pages 28-32. DOI: http://dx.doi.org/10.1016/j.smallrumres.2014.03.004