Productive performance of Brazilian Somali ewes in the tropical Northeast region of Brazil
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/16429 |
Resumo: | Mean age at puberty was 333.4 days when ewes weighed 18.3 kg. First lambing occurred at 531.8 days and 22.2 kg body weight. Ovulation rate at puberty was 1.05 at first 1.13 at second ovulations. In laparotomized lambs, 87.5 percent ovulated before first puberal estrus and right ovary appeared to be more active. In rainy and dry seasons respectively, the estrus cycle length was 18.91 and 18.26 days and estrus period was 29.20 and 30.77 hours, being longer in older ewes (28.01 vs 31.23 hours). There was no significant difference in fertility rate at parturition and abortions, due to age of ewes. The mean gestation period was 148.7 days and sex ratio of lambs was 47.80. Overall prolificacy was 1.26 and 1.10 and 1.32 for primipara and pluripara ewes respectively. There was a marked difference in mortality of lambs born to primipara (19.05%) and pluripara (5.33%) ewes. Interval between parturition to first post-partum estrus was 70.13 days and interval between lambings was 281.3 days. Milk production averaged 211.7 g/ewe/day during first 80 days lactation. Mean birth weight was 2.02 kg and 10.5 kg at weaning. Mean body weight immediately before and after breeding season and at parturition were 25.2, 26.2 and 26.1 kg, respectively. |
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Productive performance of Brazilian Somali ewes in the tropical Northeast region of BrazilDesempenho produtivo de ovelhas da raça Somalis brasileira no Nordeste do Brasilreproduction; puberty; gestation; fertility; sex ratio; lactationreprodução; puberdade; gestação; fertilidade; proporção sexual; lactaçãoMean age at puberty was 333.4 days when ewes weighed 18.3 kg. First lambing occurred at 531.8 days and 22.2 kg body weight. Ovulation rate at puberty was 1.05 at first 1.13 at second ovulations. In laparotomized lambs, 87.5 percent ovulated before first puberal estrus and right ovary appeared to be more active. In rainy and dry seasons respectively, the estrus cycle length was 18.91 and 18.26 days and estrus period was 29.20 and 30.77 hours, being longer in older ewes (28.01 vs 31.23 hours). There was no significant difference in fertility rate at parturition and abortions, due to age of ewes. The mean gestation period was 148.7 days and sex ratio of lambs was 47.80. Overall prolificacy was 1.26 and 1.10 and 1.32 for primipara and pluripara ewes respectively. There was a marked difference in mortality of lambs born to primipara (19.05%) and pluripara (5.33%) ewes. Interval between parturition to first post-partum estrus was 70.13 days and interval between lambings was 281.3 days. Milk production averaged 211.7 g/ewe/day during first 80 days lactation. Mean birth weight was 2.02 kg and 10.5 kg at weaning. Mean body weight immediately before and after breeding season and at parturition were 25.2, 26.2 and 26.1 kg, respectively.A puberdade, em média, ocorreu aos 333,4 dias de idade e 18.3 kg de peso vivo, e o primeiro parto aos 531,8 dias e 22,2kg de peso. As taxas de ovulação foram de 1,05 para a primeira e de 1,13 para a segunda. Das borregas laparotomizadas, 87,5% ovularam antes do primeiro estro clínico e o ovário direito mostrou maior atividade. O ciclo estral foi de 18,91 e 18,26 dias e o período estral de 29,90 e 30,77 horas, para a época chuvosa e seca, respectivamente, sendo maior em fêmeas adultas (28,01 vs 31,23 horas). Não houve diferença estatística entre fêmeas jovens e adultas para as taxas de fertilidade ao parto e de aborto. O período de gestação e a proporção sexual foram de 148,7 dias e 47,8%. A prolificidade total foi de 1,26, sendo 1,10 e 1,32 para matrizes primíparas e pluríparas, respectivamente. A mortalidade foi de 19,05 e 5,33% em crias oriundas de matrizes primíparas e pluríparas, respectivamente. O intervalo entre o parto e primeiro estro pós-parto foi de 70,12 dias e o intervalo entre partos, de 281,3 dias. A produção média diária de leite nos primeiros 80 dias de lactação foi de 211,7 g/ovelha. A média do peso ao nascer e ao desmame foi de 2,02 e 10,5 kg. Os pesos médios, pró e pós-estação de monta e ao parto, foram 25,2; 26,2 e 26,1 kg, respectivamente.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSimplício, Aurino AlvesRiera, Gerardo SimónFigueiredo, Elsio Antonio Pereira deNunes, José Ferreira2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16429Pesquisa Agropecuaria Brasileira; v.17, n.12, dez. 1982; 1795-1803Pesquisa Agropecuária Brasileira; v.17, n.12, dez. 1982; 1795-18031678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16429/10691info:eu-repo/semantics/openAccess2014-04-16T11:50:19Zoai:ojs.seer.sct.embrapa.br:article/16429Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T11:50:19Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Productive performance of Brazilian Somali ewes in the tropical Northeast region of Brazil Desempenho produtivo de ovelhas da raça Somalis brasileira no Nordeste do Brasil |
title |
Productive performance of Brazilian Somali ewes in the tropical Northeast region of Brazil |
spellingShingle |
Productive performance of Brazilian Somali ewes in the tropical Northeast region of Brazil Simplício, Aurino Alves reproduction; puberty; gestation; fertility; sex ratio; lactation reprodução; puberdade; gestação; fertilidade; proporção sexual; lactação |
title_short |
Productive performance of Brazilian Somali ewes in the tropical Northeast region of Brazil |
title_full |
Productive performance of Brazilian Somali ewes in the tropical Northeast region of Brazil |
title_fullStr |
Productive performance of Brazilian Somali ewes in the tropical Northeast region of Brazil |
title_full_unstemmed |
Productive performance of Brazilian Somali ewes in the tropical Northeast region of Brazil |
title_sort |
Productive performance of Brazilian Somali ewes in the tropical Northeast region of Brazil |
author |
Simplício, Aurino Alves |
author_facet |
Simplício, Aurino Alves Riera, Gerardo Simón Figueiredo, Elsio Antonio Pereira de Nunes, José Ferreira |
author_role |
author |
author2 |
Riera, Gerardo Simón Figueiredo, Elsio Antonio Pereira de Nunes, José Ferreira |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Simplício, Aurino Alves Riera, Gerardo Simón Figueiredo, Elsio Antonio Pereira de Nunes, José Ferreira |
dc.subject.por.fl_str_mv |
reproduction; puberty; gestation; fertility; sex ratio; lactation reprodução; puberdade; gestação; fertilidade; proporção sexual; lactação |
topic |
reproduction; puberty; gestation; fertility; sex ratio; lactation reprodução; puberdade; gestação; fertilidade; proporção sexual; lactação |
description |
Mean age at puberty was 333.4 days when ewes weighed 18.3 kg. First lambing occurred at 531.8 days and 22.2 kg body weight. Ovulation rate at puberty was 1.05 at first 1.13 at second ovulations. In laparotomized lambs, 87.5 percent ovulated before first puberal estrus and right ovary appeared to be more active. In rainy and dry seasons respectively, the estrus cycle length was 18.91 and 18.26 days and estrus period was 29.20 and 30.77 hours, being longer in older ewes (28.01 vs 31.23 hours). There was no significant difference in fertility rate at parturition and abortions, due to age of ewes. The mean gestation period was 148.7 days and sex ratio of lambs was 47.80. Overall prolificacy was 1.26 and 1.10 and 1.32 for primipara and pluripara ewes respectively. There was a marked difference in mortality of lambs born to primipara (19.05%) and pluripara (5.33%) ewes. Interval between parturition to first post-partum estrus was 70.13 days and interval between lambings was 281.3 days. Milk production averaged 211.7 g/ewe/day during first 80 days lactation. Mean birth weight was 2.02 kg and 10.5 kg at weaning. Mean body weight immediately before and after breeding season and at parturition were 25.2, 26.2 and 26.1 kg, respectively. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-16 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/16429 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/16429 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/16429/10691 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.17, n.12, dez. 1982; 1795-1803 Pesquisa Agropecuária Brasileira; v.17, n.12, dez. 1982; 1795-1803 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416653780811776 |