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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
22/01/2016 |
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Data da última atualização: |
03/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, L. H. dos; LOBO, A. M. B. O.; FACO, O.; GONÇALVES, H. C.; LOBO, R. N. B. |
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Afiliação: |
Leonardo Hunaldo dos Santos, Federal University of Ceará (UFC) - Fortaleza, CE, Brazil; Federal University of Maranhão - Campus Imperatriz, Brazil; ANA MARIA BEZERRA OLIVEIRA LOBO, CNPC; OLIVARDO FACO, CNPC; Heraldo Cesar Gonçalves, UNESP - Brazil; RAIMUNDO NONATO BRAGA LOBO, CNPC. |
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Título: |
Breeding programs for dairy goats generate profits in Brazil. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Livestock Science, Amsterdam, v. 178, p. 27-34, 2015. |
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DOI: |
doi:10.1016/j.livsci.2015.05.032 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This work aims to evaluate the economic feasibility of a breeding program for dairy goats in developing countries. A traditional scheme was compared with a scheme using a progeny test. In the traditional scheme, farm records are used and the selection of bucks is based on reproduction and milk yield of their dams, while the selection of does is based on their own performance and on their dam's performance. Analyses were performed using the ZPLAN software, which uses a deterministic approach to estimate genetic and economic gains in breeding programs. The traditional selection scheme showed no economic viability and did not cover the costs for maintenance of the breeding program. The scheme using progeny tests of young bucks was viable, with considerable genetic profits for the objectives of selection and individual traits. The economic returns of this program exceeded its costs, with a return on investment of approximately 3%. In this scheme, somatic cell count was the trait with the largest economic impact, followed by milk yield. The intensity of use of young bucks in progeny testing should not exceed 10%. Above this value, no substantial monetary gains were obtained for the objective of selection, besides the reduction of the net present value of the breeding program. |
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Palavras-Chave: |
Contagem de células somáticas; Economic evaluation; Ganho genético; Genetic gain; Net present value; Valor presente líquido; Viabilidade económica. |
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Thesagro: |
Análise econômica; Cabra leiteira; Caprino; Seleção genética; Teste de progênie. |
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Thesaurus Nal: |
Economic analysis; Progeny testing; Selection criteria; Somatic cell count. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02400naa a2200373 a 4500
001 2034768
005 2016-03-03
008 2015 bl uuuu u00u1 u #d
024 7 $adoi:10.1016/j.livsci.2015.05.032$2DOI
100 1 $aSANTOS, L. H. dos
245 $aBreeding programs for dairy goats generate profits in Brazil.$h[electronic resource]
260 $c2015
520 $aAbstract: This work aims to evaluate the economic feasibility of a breeding program for dairy goats in developing countries. A traditional scheme was compared with a scheme using a progeny test. In the traditional scheme, farm records are used and the selection of bucks is based on reproduction and milk yield of their dams, while the selection of does is based on their own performance and on their dam's performance. Analyses were performed using the ZPLAN software, which uses a deterministic approach to estimate genetic and economic gains in breeding programs. The traditional selection scheme showed no economic viability and did not cover the costs for maintenance of the breeding program. The scheme using progeny tests of young bucks was viable, with considerable genetic profits for the objectives of selection and individual traits. The economic returns of this program exceeded its costs, with a return on investment of approximately 3%. In this scheme, somatic cell count was the trait with the largest economic impact, followed by milk yield. The intensity of use of young bucks in progeny testing should not exceed 10%. Above this value, no substantial monetary gains were obtained for the objective of selection, besides the reduction of the net present value of the breeding program.
650 $aEconomic analysis
650 $aProgeny testing
650 $aSelection criteria
650 $aSomatic cell count
650 $aAnálise econômica
650 $aCabra leiteira
650 $aCaprino
650 $aSeleção genética
650 $aTeste de progênie
653 $aContagem de células somáticas
653 $aEconomic evaluation
653 $aGanho genético
653 $aGenetic gain
653 $aNet present value
653 $aValor presente líquido
653 $aViabilidade económica
700 1 $aLOBO, A. M. B. O.
700 1 $aFACO, O.
700 1 $aGONÇALVES, H. C.
700 1 $aLOBO, R. N. B.
773 $tLivestock Science, Amsterdam$gv. 178, p. 27-34, 2015.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro |
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Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
04/09/2018 |
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Data da última atualização: |
04/09/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CALZAVARA, A. K.; PAIVA, P. H. G.; GABRIEL, L. C.; OLIVEIRA, A. L. M.; MILANI, K.; OLIVEIRA, H. C.; BIANCHINI, E.; PIMENTA, J. A.; OLIVEIRA, M. C. N. de; DIAS-PEREIRA, J.; STOLF-MOREIRA, R. |
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Afiliação: |
UEL; UEL; UEM; UEL; UEL; UEL; UEL; UEL; MARIA CRISTINA NEVES DE OLIVEIRA, CNPSO; UFV; UEL. |
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Título: |
Associative bacteria influence maize (Zea mays L.) growth, physiology and root anatomy under different nitrogen levels. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Plant biology, v. 20, n. 5, p. 870-878, 2018. |
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Idioma: |
Inglês |
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Thesagro: |
Bactéria; Fotossíntese; Inoculação; Inoculante; Milho; Raiz. |
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Thesaurus NAL: |
Corn; Nitrogen; Root inoculation. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 00954naa a2200337 a 4500
001 2095037
005 2018-09-04
008 2018 bl uuuu u00u1 u #d
100 1 $aCALZAVARA, A. K.
245 $aAssociative bacteria influence maize (Zea mays L.) growth, physiology and root anatomy under different nitrogen levels.$h[electronic resource]
260 $c2018
650 $aCorn
650 $aNitrogen
650 $aRoot inoculation
650 $aBactéria
650 $aFotossíntese
650 $aInoculação
650 $aInoculante
650 $aMilho
650 $aRaiz
700 1 $aPAIVA, P. H. G.
700 1 $aGABRIEL, L. C.
700 1 $aOLIVEIRA, A. L. M.
700 1 $aMILANI, K.
700 1 $aOLIVEIRA, H. C.
700 1 $aBIANCHINI, E.
700 1 $aPIMENTA, J. A.
700 1 $aOLIVEIRA, M. C. N. de
700 1 $aDIAS-PEREIRA, J.
700 1 $aSTOLF-MOREIRA, R.
773 $tPlant biology$gv. 20, n. 5, p. 870-878, 2018.
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