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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
23/09/2020 |
Data da última atualização: |
23/09/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
HAILE, A.; GETACHEW, T.; MIRKENA, T.; DUGUMA, G.; GIZAW, S.; WURZINGER, M.; SOELKNER, J.; MWAI, O.; DESSIE, T.; ABEBE, A.; ABATE, Z.; JEMBERE, T.; REKIK, M.; LOBO, R. N. B.; MWACHARO, J. M.; TERFA, Z. G.; KASSIE, G. T.; MUELLER, J. P.; RISCHKOWSKY, B. |
Afiliação: |
RAIMUNDO NONATO BRAGA LOBO, CNPC. |
Título: |
Community-based sheep breeding programs generated substantialgenetic gains and socioeconomic benefits. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Animal, v. 14, n. 7, p. 1362-1370, 2020. |
DOI: |
10.1017/S1751731120000269 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Community-based breeding programs (CBBPs) for small ruminants have been suggested as alternatives to centralised,government-controlled breeding schemes which have been implemented in many developing countries. An innovativemethodological framework on how to design, implement and sustain CBBPs was tested in three sites in Ethiopia: Bonga, Horroand Menz. In these CBBPs, the main selection trait identified through participatory approaches was 6-month weight in all threesites. In Horro and Bonga, where resources such as feed and water permitted larger litter sizes, twinning rate was included.Ten-year (2009 to 2018) performance data from the breeding programs were analysed using Average Information RestrictedMaximum Likelihood method (AI-REML). Additionally, the socioeconomic impact of CBBPs was assessed. Results indicated that6-month weight increased over the years in all breeds. In Bonga, the average increase was 0.21±0.018 kg/year, followed by0.18±0.007 and 0.11±0.003 kg/year in Horro and Menz, respectively. This was quite substantial in an on-farm situation. Thebirth weight of lambs did not improve over the years in Bonga and Horro sheep but significant increases occurred in Menz.Considering that there was no direct selection on birth weight in the community flock, the increased weights observed in Menzcould be due to correlated responses, but this was not the case in Bonga and Horro. The genetic trend for prolificacy over theyears in both Bonga and Horro flocks was positive and significant (P<0.01). This increase in litter size, combined with theincreased 6-month body weight, increased income by 20% and farm-level meat consumption from slaughter of one sheep peryear to three. The results show that CBBPs are technically feasible, result in measurable genetic gains in performance traits andimpact the livelihoods of farmers. MenosAbstract: Community-based breeding programs (CBBPs) for small ruminants have been suggested as alternatives to centralised,government-controlled breeding schemes which have been implemented in many developing countries. An innovativemethodological framework on how to design, implement and sustain CBBPs was tested in three sites in Ethiopia: Bonga, Horroand Menz. In these CBBPs, the main selection trait identified through participatory approaches was 6-month weight in all threesites. In Horro and Bonga, where resources such as feed and water permitted larger litter sizes, twinning rate was included.Ten-year (2009 to 2018) performance data from the breeding programs were analysed using Average Information RestrictedMaximum Likelihood method (AI-REML). Additionally, the socioeconomic impact of CBBPs was assessed. Results indicated that6-month weight increased over the years in all breeds. In Bonga, the average increase was 0.21±0.018 kg/year, followed by0.18±0.007 and 0.11±0.003 kg/year in Horro and Menz, respectively. This was quite substantial in an on-farm situation. Thebirth weight of lambs did not improve over the years in Bonga and Horro sheep but significant increases occurred in Menz.Considering that there was no direct selection on birth weight in the community flock, the increased weights observed in Menzcould be due to correlated responses, but this was not the case in Bonga and Horro. The genetic trend for prolificacy over theyears in both Bonga and Horro flocks was... Mostrar Tudo |
Palavras-Chave: |
Genetic parameter; Local breed. |
Thesaurus Nal: |
Animal breeding; Body weight; Community programs; Genetic trend; Sheep breeds; Small ruminants. |
Categoria do assunto: |
G Melhoramento Genético |
Marc: |
LEADER 03060naa a2200445 a 4500 001 2125083 005 2020-09-23 008 2020 bl uuuu u00u1 u #d 024 7 $a10.1017/S1751731120000269$2DOI 100 1 $aHAILE, A. 245 $aCommunity-based sheep breeding programs generated substantialgenetic gains and socioeconomic benefits.$h[electronic resource] 260 $c2020 520 $aAbstract: Community-based breeding programs (CBBPs) for small ruminants have been suggested as alternatives to centralised,government-controlled breeding schemes which have been implemented in many developing countries. An innovativemethodological framework on how to design, implement and sustain CBBPs was tested in three sites in Ethiopia: Bonga, Horroand Menz. In these CBBPs, the main selection trait identified through participatory approaches was 6-month weight in all threesites. In Horro and Bonga, where resources such as feed and water permitted larger litter sizes, twinning rate was included.Ten-year (2009 to 2018) performance data from the breeding programs were analysed using Average Information RestrictedMaximum Likelihood method (AI-REML). Additionally, the socioeconomic impact of CBBPs was assessed. Results indicated that6-month weight increased over the years in all breeds. In Bonga, the average increase was 0.21±0.018 kg/year, followed by0.18±0.007 and 0.11±0.003 kg/year in Horro and Menz, respectively. This was quite substantial in an on-farm situation. Thebirth weight of lambs did not improve over the years in Bonga and Horro sheep but significant increases occurred in Menz.Considering that there was no direct selection on birth weight in the community flock, the increased weights observed in Menzcould be due to correlated responses, but this was not the case in Bonga and Horro. The genetic trend for prolificacy over theyears in both Bonga and Horro flocks was positive and significant (P<0.01). This increase in litter size, combined with theincreased 6-month body weight, increased income by 20% and farm-level meat consumption from slaughter of one sheep peryear to three. The results show that CBBPs are technically feasible, result in measurable genetic gains in performance traits andimpact the livelihoods of farmers. 650 $aAnimal breeding 650 $aBody weight 650 $aCommunity programs 650 $aGenetic trend 650 $aSheep breeds 650 $aSmall ruminants 653 $aGenetic parameter 653 $aLocal breed 700 1 $aGETACHEW, T. 700 1 $aMIRKENA, T. 700 1 $aDUGUMA, G. 700 1 $aGIZAW, S. 700 1 $aWURZINGER, M. 700 1 $aSOELKNER, J. 700 1 $aMWAI, O. 700 1 $aDESSIE, T. 700 1 $aABEBE, A. 700 1 $aABATE, Z. 700 1 $aJEMBERE, T. 700 1 $aREKIK, M. 700 1 $aLOBO, R. N. B. 700 1 $aMWACHARO, J. M. 700 1 $aTERFA, Z. G. 700 1 $aKASSIE, G. T. 700 1 $aMUELLER, J. P. 700 1 $aRISCHKOWSKY, B. 773 $tAnimal$gv. 14, n. 7, p. 1362-1370, 2020.
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Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
29/03/2022 |
Data da última atualização: |
29/03/2022 |
Tipo da produção científica: |
Documentos |
Autoria: |
MORAES NETO, S. P. de. |
Afiliação: |
SEBASTIAO PIRES DE MORAES NETO, CPAC. |
Título: |
Compilação de alguns estudos sobre Tectona grandis (Teca): ênfase para plantio no domínio do Cerrado brasileiro. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2021. |
Páginas: |
57 p. |
Série: |
(Embrapa Cerrados. Documentos, 391). |
Idioma: |
Português |
Conteúdo: |
A teca é uma árvore com grande potencial econômico e aceitação no merca- do nacional e internacional. No Brasil, seu plantio vem crescendo em particu- lar na porção mais ao norte do território. Em sua área de ocorrência natural ocupa áreas entre 8o a 25o de Latitude Norte no Sudoeste da Ásia. Esse inter- valo de valores de latitude, apesar de estar localizado na porção Sul, também existe nos domínios do Brasil. Atualmente, no Cerrado típico brasileiro seu plantio ainda é considerado in- cipiente, com exceção de plantios no Mato Grosso em áreas de domínio do Cerrado e áreas de transição entre o Cerrado e o Pantanal e o Cerrado com a Amazônia, necessitando experimentos para melhor conhecimento da espé- cie em outras localidades do Cerrado. Para adquirir maior embasamento sobre a espécie, existe a necessidade de conhecimentos sobre assuntos como melhoramento, biologia reprodutiva, propagação vegetativa, quebra de dormência das sementes, manejo silvicul- tural e do solo, pragas, tecnologia da madeira e econômicos. Esses assuntos são tratados parcialmente nesta compilação sobre a teca, esperando preen- cher algumas lacunas de saber do leitor, estimulando-o a novas pesquisas sobre o tema. |
Thesagro: |
Madeira; Teca. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/233091/1/Doc-391-Sebastiao-Pires.pdf
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Marc: |
LEADER 01744nam a2200157 a 4500 001 2141557 005 2022-03-29 008 2021 bl uuuu 00u1 u #d 100 1 $aMORAES NETO, S. P. de 245 $aCompilação de alguns estudos sobre Tectona grandis (Teca)$bênfase para plantio no domínio do Cerrado brasileiro.$h[electronic resource] 260 $aPlanaltina, DF: Embrapa Cerrados$c2021 300 $a57 p. 490 $a(Embrapa Cerrados. Documentos, 391). 520 $aA teca é uma árvore com grande potencial econômico e aceitação no merca- do nacional e internacional. No Brasil, seu plantio vem crescendo em particu- lar na porção mais ao norte do território. Em sua área de ocorrência natural ocupa áreas entre 8o a 25o de Latitude Norte no Sudoeste da Ásia. Esse inter- valo de valores de latitude, apesar de estar localizado na porção Sul, também existe nos domínios do Brasil. Atualmente, no Cerrado típico brasileiro seu plantio ainda é considerado in- cipiente, com exceção de plantios no Mato Grosso em áreas de domínio do Cerrado e áreas de transição entre o Cerrado e o Pantanal e o Cerrado com a Amazônia, necessitando experimentos para melhor conhecimento da espé- cie em outras localidades do Cerrado. Para adquirir maior embasamento sobre a espécie, existe a necessidade de conhecimentos sobre assuntos como melhoramento, biologia reprodutiva, propagação vegetativa, quebra de dormência das sementes, manejo silvicul- tural e do solo, pragas, tecnologia da madeira e econômicos. Esses assuntos são tratados parcialmente nesta compilação sobre a teca, esperando preen- cher algumas lacunas de saber do leitor, estimulando-o a novas pesquisas sobre o tema. 650 $aMadeira 650 $aTeca
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