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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
22/01/2016 |
Data da última atualização: |
03/03/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SANTOS, L. H. dos; LOBO, A. M. B. O.; FACO, O.; GONÇALVES, H. C.; LOBO, R. N. B. |
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. |
Título: |
Breeding programs for dairy goats generate profits in Brazil. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Livestock Science, Amsterdam, v. 178, p. 27-34, 2015. |
DOI: |
doi:10.1016/j.livsci.2015.05.032 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Contagem de células somáticas; Economic evaluation; Ganho genético; Genetic gain; Net present value; Valor presente líquido; Viabilidade económica. |
Thesagro: |
Análise econômica; Cabra leiteira; Caprino; Seleção genética; Teste de progênie. |
Thesaurus Nal: |
Economic analysis; Progeny testing; Selection criteria; Somatic cell count. |
Categoria do assunto: |
G Melhoramento Genético |
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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