Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental x Nellore calves
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Publication Date: | 2013 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UNESP |
Download full: | http://dx.doi.org/10.1590/S1516-35982013000700003 http://hdl.handle.net/11449/132296 |
Summary: | The objective of this study was to analyze the influence of genetic group (GG) of the calf during gestation, mobilization of body reserves and period of postpartum anestrus in Nellore cows. Thirty-seven primiparous and multiparous cows were used: 24 gave birth to Nellore (NEL), and 13 gave birth to 1/2 Simmental x 1/2 Nellore (SIM) calves. According to the date of calving, cows were divided into three blocks, with intervals of 20 days between blocks. The body condition (BC) of the cows was estimated subjectively on a scale from 0 to 5 points, with intermediate grading of 0.5 points. We measured the thickness of subcutaneous fat (SF) between the 12th and 13th ribs and rump by ultrasound. Blood samples from each cow were collected weekly from the third week after birth until weaning, to analyze the level of progesterone; in the samples collected until 16 weeks postpartum, we analyzed the concentration of nonesterified fatty acids(NEFA). The gestation period of mothers of NEL calves was eight days longer, on average. The variables relating to the mobilization of body reserves (NEFA, BC and SF) were not influenced by calf GG, with the only significant effects being the number of days postpartum, witha peak in the concentration of NEFA between the sixth and eighth weeks and linear decrease in BC and NF. Mothers of NEL calves remained in anestrus for 4.6 weeks longer than the mothers of crossbred calves. |
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Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental x Nellore calvesAnestrusBody conditionCrossingSubcutaneous fatThe objective of this study was to analyze the influence of genetic group (GG) of the calf during gestation, mobilization of body reserves and period of postpartum anestrus in Nellore cows. Thirty-seven primiparous and multiparous cows were used: 24 gave birth to Nellore (NEL), and 13 gave birth to 1/2 Simmental x 1/2 Nellore (SIM) calves. According to the date of calving, cows were divided into three blocks, with intervals of 20 days between blocks. The body condition (BC) of the cows was estimated subjectively on a scale from 0 to 5 points, with intermediate grading of 0.5 points. We measured the thickness of subcutaneous fat (SF) between the 12th and 13th ribs and rump by ultrasound. Blood samples from each cow were collected weekly from the third week after birth until weaning, to analyze the level of progesterone; in the samples collected until 16 weeks postpartum, we analyzed the concentration of nonesterified fatty acids(NEFA). The gestation period of mothers of NEL calves was eight days longer, on average. The variables relating to the mobilization of body reserves (NEFA, BC and SF) were not influenced by calf GG, with the only significant effects being the number of days postpartum, witha peak in the concentration of NEFA between the sixth and eighth weeks and linear decrease in BC and NF. Mothers of NEL calves remained in anestrus for 4.6 weeks longer than the mothers of crossbred calves.Fundacao Univ Fed Grande Dourados, Fac Ciencias Agr, BR-79804970 Dourados, MS, BrazilUniv Estadual Paulista, Fac Med Vet & Zootecnia, Dept Exploracao & Prod Anim, Botucatu, SP, BrazilUniv Estadual Mato Grosso Sul, Curso Zootecnia, Aquidauana, MS, BrazilUniv Estadual Paulista, Fac Med Vet & Zootecnia, Dept Exploracao & Prod Anim, Botucatu, SP, BrazilRevista Brasileira Zootecnia Brazilian Journal Animal SciUniversidade Federal da Grande Dourados (UFGD)Universidade Estadual Paulista (Unesp)Universidade Estadual de Mato Grosso do Sul (UEMS)Vargas Júnior, Fernando Miranda deWechsler, Francisco Stefano [UNESP]Oliveira, Marcus Vinicius Morais deSeno, Leonardo de Oliveira [UNESP]Fernandes, Alexandre Rodrigo Mendes [UNESP]Camilo, Fernando Rossi [UNESP]2014-12-03T13:10:38Z2014-12-03T13:10:38Z2013-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article475-480application/pdfhttp://dx.doi.org/10.1590/S1516-35982013000700003Revista Brasileira de Zootecnia-brazilian Journal of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 42, n. 7, p. 475-480, 2013.1516-35981806-9290http://hdl.handle.net/11449/13229610.1590/S1516-35982013000700003S1516-35982013000700003WOS:0003223170000032-s2.0-84880707145S1516-35982013000700003.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Zootecnia0.7350,337info:eu-repo/semantics/openAccess2023-11-20T06:11:06Zoai:repositorio.unesp.br:11449/132296Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-20T06:11:06Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental x Nellore calves |
title |
Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental x Nellore calves |
spellingShingle |
Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental x Nellore calves Vargas Júnior, Fernando Miranda de Anestrus Body condition Crossing Subcutaneous fat |
title_short |
Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental x Nellore calves |
title_full |
Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental x Nellore calves |
title_fullStr |
Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental x Nellore calves |
title_full_unstemmed |
Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental x Nellore calves |
title_sort |
Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental x Nellore calves |
author |
Vargas Júnior, Fernando Miranda de |
author_facet |
Vargas Júnior, Fernando Miranda de Wechsler, Francisco Stefano [UNESP] Oliveira, Marcus Vinicius Morais de Seno, Leonardo de Oliveira [UNESP] Fernandes, Alexandre Rodrigo Mendes [UNESP] Camilo, Fernando Rossi [UNESP] |
author_role |
author |
author2 |
Wechsler, Francisco Stefano [UNESP] Oliveira, Marcus Vinicius Morais de Seno, Leonardo de Oliveira [UNESP] Fernandes, Alexandre Rodrigo Mendes [UNESP] Camilo, Fernando Rossi [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal da Grande Dourados (UFGD) Universidade Estadual Paulista (Unesp) Universidade Estadual de Mato Grosso do Sul (UEMS) |
dc.contributor.author.fl_str_mv |
Vargas Júnior, Fernando Miranda de Wechsler, Francisco Stefano [UNESP] Oliveira, Marcus Vinicius Morais de Seno, Leonardo de Oliveira [UNESP] Fernandes, Alexandre Rodrigo Mendes [UNESP] Camilo, Fernando Rossi [UNESP] |
dc.subject.por.fl_str_mv |
Anestrus Body condition Crossing Subcutaneous fat |
topic |
Anestrus Body condition Crossing Subcutaneous fat |
description |
The objective of this study was to analyze the influence of genetic group (GG) of the calf during gestation, mobilization of body reserves and period of postpartum anestrus in Nellore cows. Thirty-seven primiparous and multiparous cows were used: 24 gave birth to Nellore (NEL), and 13 gave birth to 1/2 Simmental x 1/2 Nellore (SIM) calves. According to the date of calving, cows were divided into three blocks, with intervals of 20 days between blocks. The body condition (BC) of the cows was estimated subjectively on a scale from 0 to 5 points, with intermediate grading of 0.5 points. We measured the thickness of subcutaneous fat (SF) between the 12th and 13th ribs and rump by ultrasound. Blood samples from each cow were collected weekly from the third week after birth until weaning, to analyze the level of progesterone; in the samples collected until 16 weeks postpartum, we analyzed the concentration of nonesterified fatty acids(NEFA). The gestation period of mothers of NEL calves was eight days longer, on average. The variables relating to the mobilization of body reserves (NEFA, BC and SF) were not influenced by calf GG, with the only significant effects being the number of days postpartum, witha peak in the concentration of NEFA between the sixth and eighth weeks and linear decrease in BC and NF. Mothers of NEL calves remained in anestrus for 4.6 weeks longer than the mothers of crossbred calves. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-07-01 2014-12-03T13:10:38Z 2014-12-03T13:10:38Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1516-35982013000700003 Revista Brasileira de Zootecnia-brazilian Journal of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 42, n. 7, p. 475-480, 2013. 1516-3598 1806-9290 http://hdl.handle.net/11449/132296 10.1590/S1516-35982013000700003 S1516-35982013000700003 WOS:000322317000003 2-s2.0-84880707145 S1516-35982013000700003.pdf |
url |
http://dx.doi.org/10.1590/S1516-35982013000700003 http://hdl.handle.net/11449/132296 |
identifier_str_mv |
Revista Brasileira de Zootecnia-brazilian Journal of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 42, n. 7, p. 475-480, 2013. 1516-3598 1806-9290 10.1590/S1516-35982013000700003 S1516-35982013000700003 WOS:000322317000003 2-s2.0-84880707145 S1516-35982013000700003.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira de Zootecnia 0.735 0,337 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
475-480 application/pdf |
dc.publisher.none.fl_str_mv |
Revista Brasileira Zootecnia Brazilian Journal Animal Sci |
publisher.none.fl_str_mv |
Revista Brasileira Zootecnia Brazilian Journal Animal Sci |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
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UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1799965002425171968 |