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Registro Completo |
Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
Data corrente: |
12/07/2023 |
Data da última atualização: |
23/08/2023 |
Tipo da produção científica: |
Documentos |
Autoria: |
RODRIGUES, A. P. O.; SILVA, T. B. A. da; FONSECA, F. A. L. da. |
Afiliação: |
ANA PAULA OEDA RODRIGUES, CNPASA; THYSSIA BOMFIM ARAÚJO DA SILVA, INSTITUTO FEDERAL DO AMAZONAS, Presidente Figueiredo-AM; FLÁVIO AUGUSTO LEÃO DA FONSECA, INSTITUTO FEDERAL DO AMAZONAS, Manaus-AM. |
Título: |
Aspectos metodológicos da experimentação com larvas de peixes de água doce. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Palmas: Embrapa Pesca e Aquicultura, 2023. |
Páginas: |
44 p. |
Descrição Física: |
il. |
Série: |
(Embrapa Pesca e Aquicultura. Documentos, 54). |
ISSN: |
2318-1400 |
Idioma: |
Português |
Conteúdo: |
Este trabalho teve por objetivo consolidar de forma simplificada os principais detalhes metodológicos em ensaios com larvas. Começamos o documento explicando primeiramente as terminologias específicas da fase larval e como elas afetam a condução de ensaios. Na sequência, apresentamos estruturas e utensílios utilizados para experimentação e aspectos importantes do manejo de larvas. Por fim,descrevemos algumas das principais variáveis comumente utilizadas em experimentação com larvas. |
Palavras-Chave: |
Larva de peixe; Manejo de larvas; Objetivo de desenvolvimento sustentável; Selo ODS 15. |
Thesagro: |
Alevino; Alimentação; Aquicultura; Larva; Peixe de Água Doce; Qualidade da Água. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154915/1/doc-54-2023.pdf
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Marc: |
LEADER 01363nam a2200289 a 4500 001 2154915 005 2023-08-23 008 2023 bl uuuu u0uu1 u #d 022 $a2318-1400 100 1 $aRODRIGUES, A. P. O. 245 $aAspectos metodológicos da experimentação com larvas de peixes de água doce.$h[electronic resource] 260 $aPalmas: Embrapa Pesca e Aquicultura$c2023 300 $a44 p.$cil. 490 $a(Embrapa Pesca e Aquicultura. Documentos, 54). 520 $aEste trabalho teve por objetivo consolidar de forma simplificada os principais detalhes metodológicos em ensaios com larvas. Começamos o documento explicando primeiramente as terminologias específicas da fase larval e como elas afetam a condução de ensaios. Na sequência, apresentamos estruturas e utensílios utilizados para experimentação e aspectos importantes do manejo de larvas. Por fim,descrevemos algumas das principais variáveis comumente utilizadas em experimentação com larvas. 650 $aAlevino 650 $aAlimentação 650 $aAquicultura 650 $aLarva 650 $aPeixe de Água Doce 650 $aQualidade da Água 653 $aLarva de peixe 653 $aManejo de larvas 653 $aObjetivo de desenvolvimento sustentável 653 $aSelo ODS 15 700 1 $aSILVA, T. B. A. da 700 1 $aFONSECA, F. A. L. da
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Embrapa Pesca e Aquicultura (CNPASA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos; Embrapa Pecuária Sudeste. |
Data corrente: |
10/07/2018 |
Data da última atualização: |
10/07/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
GALVANI, D. B.; PIRES, A. V.; SUSIN, I.; GOUVÊA, V. N.; BERNDT, A.; ABDALLA, A. L.; TEDESCHI, L. O. |
Afiliação: |
Diego Barcelos Galvani, CNPC; Alexandre V. Pires, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), Universidade de São Paulo (USP) - Piracicaba, SP, Brazil; Ivanete Susin, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), Universidade de São Paulo (USP) - Piracicaba, SP, Brazil; Vinícius N. Gouvêa, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), Universidade de São Paulo (USP) - Piracicaba, SP, Brazil; Alexandre Berndt, CPPSE; Adibe L. Abdall, Centro de Energia Nuclear na Agricultura, Universidade de São Paulo (USP) - Piracicaba, SP, Brazil; Luís O. Tedeschi, Department of Animal Science, Texas A&M University, College Station, TX, United States. |
Título: |
Net protein requirements and metabolizable protein use for growing ram lambs fed diets differing in concentrate level and roughage source. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Small Ruminant Research, v. 165, n. 79-86, Aug. 2018. |
DOI: |
https://doi.org/10.1016/j.smallrumres.2018.05.012 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Two trials were conducted to determine net protein requirements and the use of metabolizable protein (MP) for growing ram lambs when fed diets with different concentrate levels and roughage quality. In a comparative slaughter trial, eighty-four ½ Dorper"×"½ Santa Inês ram lambs (18.0 ± 3.3 kg of BW) were individually penned and divided into 2 diet groups differing in roughage source: low-quality (sugarcane bagasse) roughage (LQR) or medium-quality (coastcross hay) roughage (MQR). In each group, 7 lambs were randomly selected and slaughtered after a 10 days adaptation period (baseline). Other 21 lambs from each diet group were fed ad libitum and slaughtered at 25, 35, or 45 kg of BW, and the remaining 28 lambs (14 from each diet group) were submitted to 1 of 2 levels of feed restriction (70 or 50% of the ad libitum intake). Body N content and retention were determined. In the second trial, 6 ram lambs (44.3 ± 5.6 kg of BW) were kept in metabolic cages and used in a 6 × 6 Latin square experiment designed to determine N digestibility and microbial N synthesis, and to compute MP supply by the 2 diets and 3 levels of intake. Nitrogen intake and microbial N synthesis were greater for the animals fed the MQR diet than for those fed the LQR diet (P < 0.05). Neither the endogenous and metabolic N losses, nor the net protein requirements for growth differed between diets (P > 0.05). However, the proportion of MP used for both maintenance and growth was lower for the animals fed the MQR diet (P < 0.05), likely because of an excess of MP reaching duodenum of these animals. We concluded that a reduction of the concentrate level in diets for growing ram lambs, achieved by improving the quality of the diet roughage, allows a greater supply of MP and may contribute to reduce diet protein concentration. MenosAbstract: Two trials were conducted to determine net protein requirements and the use of metabolizable protein (MP) for growing ram lambs when fed diets with different concentrate levels and roughage quality. In a comparative slaughter trial, eighty-four ½ Dorper"×"½ Santa Inês ram lambs (18.0 ± 3.3 kg of BW) were individually penned and divided into 2 diet groups differing in roughage source: low-quality (sugarcane bagasse) roughage (LQR) or medium-quality (coastcross hay) roughage (MQR). In each group, 7 lambs were randomly selected and slaughtered after a 10 days adaptation period (baseline). Other 21 lambs from each diet group were fed ad libitum and slaughtered at 25, 35, or 45 kg of BW, and the remaining 28 lambs (14 from each diet group) were submitted to 1 of 2 levels of feed restriction (70 or 50% of the ad libitum intake). Body N content and retention were determined. In the second trial, 6 ram lambs (44.3 ± 5.6 kg of BW) were kept in metabolic cages and used in a 6 × 6 Latin square experiment designed to determine N digestibility and microbial N synthesis, and to compute MP supply by the 2 diets and 3 levels of intake. Nitrogen intake and microbial N synthesis were greater for the animals fed the MQR diet than for those fed the LQR diet (P < 0.05). Neither the endogenous and metabolic N losses, nor the net protein requirements for growth differed between diets (P > 0.05). However, the proportion of MP used for both maintenance and growth was lower for the animals ... Mostrar Tudo |
Palavras-Chave: |
Metabolizable protein supply; Protein retention. |
Thesagro: |
Alimento Para Animal; Concentrado Protéico; Cordeiro; Exigência Nutricional; Nutrição Animal; Ovino; Proteína. |
Thesaurus NAL: |
Animal feeding; Animal nutrition; Dietary protein; Metabolizable energy; Microbial proteins; Nutrient requirements; Protein concentrates; Sheep. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 03091naa a2200409 a 4500 001 2093153 005 2018-07-10 008 2018 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.smallrumres.2018.05.012$2DOI 100 1 $aGALVANI, D. B. 245 $aNet protein requirements and metabolizable protein use for growing ram lambs fed diets differing in concentrate level and roughage source.$h[electronic resource] 260 $c2018 520 $aAbstract: Two trials were conducted to determine net protein requirements and the use of metabolizable protein (MP) for growing ram lambs when fed diets with different concentrate levels and roughage quality. In a comparative slaughter trial, eighty-four ½ Dorper"×"½ Santa Inês ram lambs (18.0 ± 3.3 kg of BW) were individually penned and divided into 2 diet groups differing in roughage source: low-quality (sugarcane bagasse) roughage (LQR) or medium-quality (coastcross hay) roughage (MQR). In each group, 7 lambs were randomly selected and slaughtered after a 10 days adaptation period (baseline). Other 21 lambs from each diet group were fed ad libitum and slaughtered at 25, 35, or 45 kg of BW, and the remaining 28 lambs (14 from each diet group) were submitted to 1 of 2 levels of feed restriction (70 or 50% of the ad libitum intake). Body N content and retention were determined. In the second trial, 6 ram lambs (44.3 ± 5.6 kg of BW) were kept in metabolic cages and used in a 6 × 6 Latin square experiment designed to determine N digestibility and microbial N synthesis, and to compute MP supply by the 2 diets and 3 levels of intake. Nitrogen intake and microbial N synthesis were greater for the animals fed the MQR diet than for those fed the LQR diet (P < 0.05). Neither the endogenous and metabolic N losses, nor the net protein requirements for growth differed between diets (P > 0.05). However, the proportion of MP used for both maintenance and growth was lower for the animals fed the MQR diet (P < 0.05), likely because of an excess of MP reaching duodenum of these animals. We concluded that a reduction of the concentrate level in diets for growing ram lambs, achieved by improving the quality of the diet roughage, allows a greater supply of MP and may contribute to reduce diet protein concentration. 650 $aAnimal feeding 650 $aAnimal nutrition 650 $aDietary protein 650 $aMetabolizable energy 650 $aMicrobial proteins 650 $aNutrient requirements 650 $aProtein concentrates 650 $aSheep 650 $aAlimento Para Animal 650 $aConcentrado Protéico 650 $aCordeiro 650 $aExigência Nutricional 650 $aNutrição Animal 650 $aOvino 650 $aProteína 653 $aMetabolizable protein supply 653 $aProtein retention 700 1 $aPIRES, A. V. 700 1 $aSUSIN, I. 700 1 $aGOUVÊA, V. N. 700 1 $aBERNDT, A. 700 1 $aABDALLA, A. L. 700 1 $aTEDESCHI, L. O. 773 $tSmall Ruminant Research$gv. 165, n. 79-86, Aug. 2018.
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