Influence of pre and postnatal energy restriction on the productive performance of ewes and lambs

Influence of pre and postnatal energy restriction on the productive performance of ewes and lambs

The objective of this study was to evaluate the influence of feeding energy levels during the last third of gestation and lactation on performance of ewes and lambs up to weaning. The experiment was carried out in the sheep raising sector of Universidade Estadual de Londrina (UEL), from August to December of 2007. Thirty-two adult lambs with 105 days of gestation, average live weight of 57.55 kg and average body condition scores of 3.42 were used in the beginning of the experiment. The animals were confined in collective pens, distributed randomly in three treatments: 2.4; 2.2 and 2.0 Mcal of metabolizable energy (ME)/kg of dry matter (DM). Feed supply was ad libitum during the last third of gestation and lactation. Weaning occurred at 70 days. Body weight, body condition score and milk production of ewes and body weight of the lambs were analyzed. There were no significant differences for body weight and body condition of ewes at lambing; however, the level of 2.4 Mcal enabled better results for those characteristics at weaning and higher gain in weight and body condition scoring during the experiment. Severe energetic restriction (2.0 Mcal ME/kg DM) determined lower average daily milk production. Lambs from levels 2.4 and 2.2 presented similar weights in all measurements and were superior to those in level 2.0. Lambs from level 2.4 presented higher average weight gain from birth to weaning. The energetic restriction upon lambs at the end of gestation and during lactation limits the performance of ewes and lambs up to weaning.

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Main Authors: Castro,Filipe Alexandre Boscaro de, Ribeiro,Edson Luis de Azambuja, Mizubuti,Ivone Yurika, Silva,Leandro das Dores Ferreira da, Barbosa,Marco Aurélio Alves de Freitas, Sousa,Cícero Leandro de, Paiva,Fernando Henrique Pereira de, Koritiaki,Natália Albieri
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Zootecnia 2012
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400017
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spelling oai:scielo:S1516-359820120004000172012-05-23Influence of pre and postnatal energy restriction on the productive performance of ewes and lambsCastro,Filipe Alexandre Boscaro deRibeiro,Edson Luis de AzambujaMizubuti,Ivone YurikaSilva,Leandro das Dores Ferreira daBarbosa,Marco Aurélio Alves de FreitasSousa,Cícero Leandro dePaiva,Fernando Henrique Pereira deKoritiaki,Natália Albieri body condition milk production mortality sheep weight gain The objective of this study was to evaluate the influence of feeding energy levels during the last third of gestation and lactation on performance of ewes and lambs up to weaning. The experiment was carried out in the sheep raising sector of Universidade Estadual de Londrina (UEL), from August to December of 2007. Thirty-two adult lambs with 105 days of gestation, average live weight of 57.55 kg and average body condition scores of 3.42 were used in the beginning of the experiment. The animals were confined in collective pens, distributed randomly in three treatments: 2.4; 2.2 and 2.0 Mcal of metabolizable energy (ME)/kg of dry matter (DM). Feed supply was ad libitum during the last third of gestation and lactation. Weaning occurred at 70 days. Body weight, body condition score and milk production of ewes and body weight of the lambs were analyzed. There were no significant differences for body weight and body condition of ewes at lambing; however, the level of 2.4 Mcal enabled better results for those characteristics at weaning and higher gain in weight and body condition scoring during the experiment. Severe energetic restriction (2.0 Mcal ME/kg DM) determined lower average daily milk production. Lambs from levels 2.4 and 2.2 presented similar weights in all measurements and were superior to those in level 2.0. Lambs from level 2.4 presented higher average weight gain from birth to weaning. The energetic restriction upon lambs at the end of gestation and during lactation limits the performance of ewes and lambs up to weaning.info:eu-repo/semantics/openAccessSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia v.41 n.4 20122012-04-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400017en10.1590/S1516-35982012000400017
institution SCIELO
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country Brasil
countrycode BR
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access En linea
databasecode rev-scielo-br
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region America del Sur
libraryname SciELO
language English
format Digital
author Castro,Filipe Alexandre Boscaro de
Ribeiro,Edson Luis de Azambuja
Mizubuti,Ivone Yurika
Silva,Leandro das Dores Ferreira da
Barbosa,Marco Aurélio Alves de Freitas
Sousa,Cícero Leandro de
Paiva,Fernando Henrique Pereira de
Koritiaki,Natália Albieri
spellingShingle Castro,Filipe Alexandre Boscaro de
Ribeiro,Edson Luis de Azambuja
Mizubuti,Ivone Yurika
Silva,Leandro das Dores Ferreira da
Barbosa,Marco Aurélio Alves de Freitas
Sousa,Cícero Leandro de
Paiva,Fernando Henrique Pereira de
Koritiaki,Natália Albieri
Influence of pre and postnatal energy restriction on the productive performance of ewes and lambs
author_facet Castro,Filipe Alexandre Boscaro de
Ribeiro,Edson Luis de Azambuja
Mizubuti,Ivone Yurika
Silva,Leandro das Dores Ferreira da
Barbosa,Marco Aurélio Alves de Freitas
Sousa,Cícero Leandro de
Paiva,Fernando Henrique Pereira de
Koritiaki,Natália Albieri
author_sort Castro,Filipe Alexandre Boscaro de
title Influence of pre and postnatal energy restriction on the productive performance of ewes and lambs
title_short Influence of pre and postnatal energy restriction on the productive performance of ewes and lambs
title_full Influence of pre and postnatal energy restriction on the productive performance of ewes and lambs
title_fullStr Influence of pre and postnatal energy restriction on the productive performance of ewes and lambs
title_full_unstemmed Influence of pre and postnatal energy restriction on the productive performance of ewes and lambs
title_sort influence of pre and postnatal energy restriction on the productive performance of ewes and lambs
description The objective of this study was to evaluate the influence of feeding energy levels during the last third of gestation and lactation on performance of ewes and lambs up to weaning. The experiment was carried out in the sheep raising sector of Universidade Estadual de Londrina (UEL), from August to December of 2007. Thirty-two adult lambs with 105 days of gestation, average live weight of 57.55 kg and average body condition scores of 3.42 were used in the beginning of the experiment. The animals were confined in collective pens, distributed randomly in three treatments: 2.4; 2.2 and 2.0 Mcal of metabolizable energy (ME)/kg of dry matter (DM). Feed supply was ad libitum during the last third of gestation and lactation. Weaning occurred at 70 days. Body weight, body condition score and milk production of ewes and body weight of the lambs were analyzed. There were no significant differences for body weight and body condition of ewes at lambing; however, the level of 2.4 Mcal enabled better results for those characteristics at weaning and higher gain in weight and body condition scoring during the experiment. Severe energetic restriction (2.0 Mcal ME/kg DM) determined lower average daily milk production. Lambs from levels 2.4 and 2.2 presented similar weights in all measurements and were superior to those in level 2.0. Lambs from level 2.4 presented higher average weight gain from birth to weaning. The energetic restriction upon lambs at the end of gestation and during lactation limits the performance of ewes and lambs up to weaning.
publisher Sociedade Brasileira de Zootecnia
publishDate 2012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400017
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