The economic viability of the inclusion of urea in the ration for feedlot lambs
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Saúde e Produção Animal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402019000100809 |
Resumo: | SUMMARY The aim of this study was to evaluate the economic viability of the inclusion of urea in the ration provided to feedlot lambs. Twenty-four non-castrated male lambs, crossbred Dorper, with 2-5 months of age and a body weight (BW) of 25.0 ± 4.3 kg were used. A completely randomized design with four treatments and six replicates was adopted, in which the treatments were urea levels of 0.0, 0.5, 1.0 and 1.5% in the ration, on a dry matter (DM) basis. Lambs were fed ad libitum for 56 days and slaughtered at a BW of37.9 ± 5.1 kg. The analyzed economic indexes were the cost of the rations, cost of marginal factor (CMF), revenue of marginal factor (RMF), net revenue (NR) and benefit: cost ratio (BCR). The ration without urea presented the highest cost (0.30 US$/kg DM) and the ration with 1.0% DM of urea had the lowest cost (0.23 US$/kg DM). The CMF had a quadratic response to the urea level, reaching the lowest value (0.28 US$/day) with the addition of 0.9 to 1.0% DM of urea. The lowest and the highest NR values were obtained from the rations without and with 1.5% DM of urea, respectively (0.26 and 0.34 US$/day). The ration without urea had a worse BCR (1.74), whereas the ration with 1.0% DM of urea resulted in a better BCR (2.09). A better economic return for lambs finishing in feedlots is obtained with rations containing 1.0 to 1.5% DM of urea. |
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The economic viability of the inclusion of urea in the ration for feedlot lambsbenefit: cost ratioconcentrate feedeconomic returnnet revenuenonprotein nitrogenSUMMARY The aim of this study was to evaluate the economic viability of the inclusion of urea in the ration provided to feedlot lambs. Twenty-four non-castrated male lambs, crossbred Dorper, with 2-5 months of age and a body weight (BW) of 25.0 ± 4.3 kg were used. A completely randomized design with four treatments and six replicates was adopted, in which the treatments were urea levels of 0.0, 0.5, 1.0 and 1.5% in the ration, on a dry matter (DM) basis. Lambs were fed ad libitum for 56 days and slaughtered at a BW of37.9 ± 5.1 kg. The analyzed economic indexes were the cost of the rations, cost of marginal factor (CMF), revenue of marginal factor (RMF), net revenue (NR) and benefit: cost ratio (BCR). The ration without urea presented the highest cost (0.30 US$/kg DM) and the ration with 1.0% DM of urea had the lowest cost (0.23 US$/kg DM). The CMF had a quadratic response to the urea level, reaching the lowest value (0.28 US$/day) with the addition of 0.9 to 1.0% DM of urea. The lowest and the highest NR values were obtained from the rations without and with 1.5% DM of urea, respectively (0.26 and 0.34 US$/day). The ration without urea had a worse BCR (1.74), whereas the ration with 1.0% DM of urea resulted in a better BCR (2.09). A better economic return for lambs finishing in feedlots is obtained with rations containing 1.0 to 1.5% DM of urea.UFBA - Universidade Federal da Bahia2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402019000100809Revista Brasileira de Saúde e Produção Animal v.20 2019reponame:Revista Brasileira de Saúde e Produção Animalinstname:Universidade Federal da Bahia (UFBA)instacron:UFBA10.1590/s1519-9940200262019info:eu-repo/semantics/openAccessRozanski,SandraVivian,Diana RosanaKowalski,Luciana HelenaRochadelli,RobertoFreitas,José Antônio deGarcez Neto,Américo FróesFernandes,Sergio Rodrigoeng2019-08-19T00:00:00Zoai:scielo:S1519-99402019000100809Revistahttp://www.rbspa.ufba.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||rbspa@ufba.br1519-99401519-9940opendoar:2019-08-19T00:00Revista Brasileira de Saúde e Produção Animal - Universidade Federal da Bahia (UFBA)false |
dc.title.none.fl_str_mv |
The economic viability of the inclusion of urea in the ration for feedlot lambs |
title |
The economic viability of the inclusion of urea in the ration for feedlot lambs |
spellingShingle |
The economic viability of the inclusion of urea in the ration for feedlot lambs Rozanski,Sandra benefit: cost ratio concentrate feed economic return net revenue nonprotein nitrogen |
title_short |
The economic viability of the inclusion of urea in the ration for feedlot lambs |
title_full |
The economic viability of the inclusion of urea in the ration for feedlot lambs |
title_fullStr |
The economic viability of the inclusion of urea in the ration for feedlot lambs |
title_full_unstemmed |
The economic viability of the inclusion of urea in the ration for feedlot lambs |
title_sort |
The economic viability of the inclusion of urea in the ration for feedlot lambs |
author |
Rozanski,Sandra |
author_facet |
Rozanski,Sandra Vivian,Diana Rosana Kowalski,Luciana Helena Rochadelli,Roberto Freitas,José Antônio de Garcez Neto,Américo Fróes Fernandes,Sergio Rodrigo |
author_role |
author |
author2 |
Vivian,Diana Rosana Kowalski,Luciana Helena Rochadelli,Roberto Freitas,José Antônio de Garcez Neto,Américo Fróes Fernandes,Sergio Rodrigo |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Rozanski,Sandra Vivian,Diana Rosana Kowalski,Luciana Helena Rochadelli,Roberto Freitas,José Antônio de Garcez Neto,Américo Fróes Fernandes,Sergio Rodrigo |
dc.subject.por.fl_str_mv |
benefit: cost ratio concentrate feed economic return net revenue nonprotein nitrogen |
topic |
benefit: cost ratio concentrate feed economic return net revenue nonprotein nitrogen |
description |
SUMMARY The aim of this study was to evaluate the economic viability of the inclusion of urea in the ration provided to feedlot lambs. Twenty-four non-castrated male lambs, crossbred Dorper, with 2-5 months of age and a body weight (BW) of 25.0 ± 4.3 kg were used. A completely randomized design with four treatments and six replicates was adopted, in which the treatments were urea levels of 0.0, 0.5, 1.0 and 1.5% in the ration, on a dry matter (DM) basis. Lambs were fed ad libitum for 56 days and slaughtered at a BW of37.9 ± 5.1 kg. The analyzed economic indexes were the cost of the rations, cost of marginal factor (CMF), revenue of marginal factor (RMF), net revenue (NR) and benefit: cost ratio (BCR). The ration without urea presented the highest cost (0.30 US$/kg DM) and the ration with 1.0% DM of urea had the lowest cost (0.23 US$/kg DM). The CMF had a quadratic response to the urea level, reaching the lowest value (0.28 US$/day) with the addition of 0.9 to 1.0% DM of urea. The lowest and the highest NR values were obtained from the rations without and with 1.5% DM of urea, respectively (0.26 and 0.34 US$/day). The ration without urea had a worse BCR (1.74), whereas the ration with 1.0% DM of urea resulted in a better BCR (2.09). A better economic return for lambs finishing in feedlots is obtained with rations containing 1.0 to 1.5% DM of urea. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402019000100809 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402019000100809 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1519-9940200262019 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
UFBA - Universidade Federal da Bahia |
publisher.none.fl_str_mv |
UFBA - Universidade Federal da Bahia |
dc.source.none.fl_str_mv |
Revista Brasileira de Saúde e Produção Animal v.20 2019 reponame:Revista Brasileira de Saúde e Produção Animal instname:Universidade Federal da Bahia (UFBA) instacron:UFBA |
instname_str |
Universidade Federal da Bahia (UFBA) |
instacron_str |
UFBA |
institution |
UFBA |
reponame_str |
Revista Brasileira de Saúde e Produção Animal |
collection |
Revista Brasileira de Saúde e Produção Animal |
repository.name.fl_str_mv |
Revista Brasileira de Saúde e Produção Animal - Universidade Federal da Bahia (UFBA) |
repository.mail.fl_str_mv |
||rbspa@ufba.br |
_version_ |
1750297508640194560 |