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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
30/08/2018 |
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Data da última atualização: |
06/05/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZAFALON, L. F.; SANTANA, R. C. M.; ESTEVES, S. N.; FIM JÚNIOR, G. A. |
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Afiliação: |
LUIZ FRANCISCO ZAFALON, CPPSE; RAUL COSTA MASCARENHAS SANTANA, CPPSE; SERGIO NOVITA ESTEVES, CPPSE; Guilherme Aparecido Fim Júnior, Unesp Jaboticabal. |
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Título: |
Somatic cell count in the diagnosis of subclinical mastitis in sheep of different breeds. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, Londrina, v.39, n.4, p.1555-1564, jul./ago. 2018 |
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ISSN: |
1679-0359 |
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DOI: |
10.5433/1679-0359.2018v39n4p1555 |
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Idioma: |
Inglês |
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Conteúdo: |
The aims of this study were to determine the occurrence of subclinical mastitis in sheep of different breeds and the values for somatic cell count (SCC) in milk for the diagnosis of the disease at lactation and weaning, a fundamental prerequisite for identifying animals in need of control measures. Milk samples were obtained from 1,457 mammary halves of Santa Inês, Texel, Ile de France, and Dorper sheep at two different periods, during the second week of lactation and at weaning. After teats antisepsis, the samples were collected, and identification of the infectious etiology of mastitis and determination of SCC were performed. Microorganisms were identified in 117/762 (15.3%) mammary halves in the second week of lactation and in 86/694 (12.4%) at weaning. Coagulase-negative staphylococci (CoNS) were the etiological agents with the highest incidence alone and in association with other microorganisms, with percentages of 58.1% and 60.6%, respectively. The Santa Inês presented a higher incidence of subclinical mastitis when compared to the other breeds. The cut-off values of SCC for subclinical mastitis were determined at both sampling periods and varied according to stage of lactation, as well breed. These results illustrate the lack of a universal value that can be used for the diagnosis of mastitis and suggests the need for permanent follow-up in herds in order to control the disease. |
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Palavras-Chave: |
Teste diagnóstico. |
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Thesagro: |
Leite; Ovelha. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/182166/1/SomaticCellCount.pdf
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Marc: |
LEADER 02084naa a2200217 a 4500
001 2094820
005 2019-05-06
008 2018 bl uuuu u00u1 u #d
022 $a1679-0359
024 7 $a10.5433/1679-0359.2018v39n4p1555$2DOI
100 1 $aZAFALON, L. F.
245 $aSomatic cell count in the diagnosis of subclinical mastitis in sheep of different breeds.$h[electronic resource]
260 $c2018
520 $aThe aims of this study were to determine the occurrence of subclinical mastitis in sheep of different breeds and the values for somatic cell count (SCC) in milk for the diagnosis of the disease at lactation and weaning, a fundamental prerequisite for identifying animals in need of control measures. Milk samples were obtained from 1,457 mammary halves of Santa Inês, Texel, Ile de France, and Dorper sheep at two different periods, during the second week of lactation and at weaning. After teats antisepsis, the samples were collected, and identification of the infectious etiology of mastitis and determination of SCC were performed. Microorganisms were identified in 117/762 (15.3%) mammary halves in the second week of lactation and in 86/694 (12.4%) at weaning. Coagulase-negative staphylococci (CoNS) were the etiological agents with the highest incidence alone and in association with other microorganisms, with percentages of 58.1% and 60.6%, respectively. The Santa Inês presented a higher incidence of subclinical mastitis when compared to the other breeds. The cut-off values of SCC for subclinical mastitis were determined at both sampling periods and varied according to stage of lactation, as well breed. These results illustrate the lack of a universal value that can be used for the diagnosis of mastitis and suggests the need for permanent follow-up in herds in order to control the disease.
650 $aLeite
650 $aOvelha
653 $aTeste diagnóstico
700 1 $aSANTANA, R. C. M.
700 1 $aESTEVES, S. N.
700 1 $aFIM JÚNIOR, G. A.
773 $tSemina: Ciências Agrárias, Londrina$gv.39, n.4, p.1555-1564, jul./ago. 2018
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
22/01/2008 |
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Data da última atualização: |
11/04/2008 |
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Autoria: |
CRUZ, A. F. da; WANDER, A. E.; SILVA JUNIOR, R. P. da. |
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Afiliação: |
Alethéia Ferreira da Cruz, Universidade Federal de Goiás; Alcido Elenor Wander, CNPAF; Renato Pinto da Silva Junior, Universidade Federal de Goiás. |
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Título: |
Economic viability of biogas plant use in pig production in brazilian states of Minas Gerais and Goiás. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: TROPENTAG: CONFERENCE ON INTERNATIONAL AGRICULTURAL RESEARCH FOR DEVELOPMENT, 2007, Witzenhausen. Proceedings. Witzenhausen; Universities of Kassel-Witzenhausen and Göttingen, 2007. |
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Páginas: |
4 p. |
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Idioma: |
Inglês |
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Conteúdo: |
The modern pig production chain delivers the most consumed meat type worldwide. During several decades, the economic profits of the activity was more important than the related environmental issues. From the nineties on the environmental impacts of the swine manure became more evident. Actors of the chain were challenged to adjust their production systems due to the negative externalities. Swine manure was endangering the sustainability of the activity in the long run. Thus, the adoption of new treatment forms of manure became compulsory to reduce environmental impacts and to sustain the activity in the involved enterprises. Among the different treatment forms of manure, this study proposed the adoption of biogas plants of the Canadian Type and the use of their byproducts as to enable environmental adjusts and increase income of the pig producing farmers. Three systems were analyzed: (1) system located in Uberlândia (Minas Gerais State), with biogas use for thermic energy and combustion, as well as for carbon credits generation; (2) system located in Rio Verde (Goiás State), with generation of carbon credits, without farmers' investment; and (3) again the system in Rio Verde simulating farmers' investment. The main objective was to assess the economic viability of each system. At the end three different studies were considered, using net present value, internal rate of return, benefit-cost-ratio and payback period. Considering these methods, all considered systems were viable and economically attractive. The best economic performance was obtained with the Uberlândia system, influenced by the effective use of byproducts generated at the biogas plant. MenosThe modern pig production chain delivers the most consumed meat type worldwide. During several decades, the economic profits of the activity was more important than the related environmental issues. From the nineties on the environmental impacts of the swine manure became more evident. Actors of the chain were challenged to adjust their production systems due to the negative externalities. Swine manure was endangering the sustainability of the activity in the long run. Thus, the adoption of new treatment forms of manure became compulsory to reduce environmental impacts and to sustain the activity in the involved enterprises. Among the different treatment forms of manure, this study proposed the adoption of biogas plants of the Canadian Type and the use of their byproducts as to enable environmental adjusts and increase income of the pig producing farmers. Three systems were analyzed: (1) system located in Uberlândia (Minas Gerais State), with biogas use for thermic energy and combustion, as well as for carbon credits generation; (2) system located in Rio Verde (Goiás State), with generation of carbon credits, without farmers' investment; and (3) again the system in Rio Verde simulating farmers' investment. The main objective was to assess the economic viability of each system. At the end three different studies were considered, using net present value, internal rate of return, benefit-cost-ratio and payback period. Considering these methods, all considered systems were viabl... Mostrar Tudo |
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Palavras-Chave: |
Economic; Esterco suino; Goiás; Minas Gerais; Swine manure. |
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Thesagro: |
Biogás; Cerrado; Economia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02494naa a2200253 a 4500
001 1215948
005 2008-04-11
008 2007 bl uuuu u00u1 u #d
100 1 $aCRUZ, A. F. da
245 $aEconomic viability of biogas plant use in pig production in brazilian states of Minas Gerais and Goiás.
260 $c2007
300 $a4 p.
520 $aThe modern pig production chain delivers the most consumed meat type worldwide. During several decades, the economic profits of the activity was more important than the related environmental issues. From the nineties on the environmental impacts of the swine manure became more evident. Actors of the chain were challenged to adjust their production systems due to the negative externalities. Swine manure was endangering the sustainability of the activity in the long run. Thus, the adoption of new treatment forms of manure became compulsory to reduce environmental impacts and to sustain the activity in the involved enterprises. Among the different treatment forms of manure, this study proposed the adoption of biogas plants of the Canadian Type and the use of their byproducts as to enable environmental adjusts and increase income of the pig producing farmers. Three systems were analyzed: (1) system located in Uberlândia (Minas Gerais State), with biogas use for thermic energy and combustion, as well as for carbon credits generation; (2) system located in Rio Verde (Goiás State), with generation of carbon credits, without farmers' investment; and (3) again the system in Rio Verde simulating farmers' investment. The main objective was to assess the economic viability of each system. At the end three different studies were considered, using net present value, internal rate of return, benefit-cost-ratio and payback period. Considering these methods, all considered systems were viable and economically attractive. The best economic performance was obtained with the Uberlândia system, influenced by the effective use of byproducts generated at the biogas plant.
650 $aBiogás
650 $aCerrado
650 $aEconomia
653 $aEconomic
653 $aEsterco suino
653 $aGoiás
653 $aMinas Gerais
653 $aSwine manure
700 1 $aWANDER, A. E.
700 1 $aSILVA JUNIOR, R. P. da
773 $tIn: TROPENTAG: CONFERENCE ON INTERNATIONAL AGRICULTURAL RESEARCH FOR DEVELOPMENT, 2007, Witzenhausen. Proceedings. Witzenhausen; Universities of Kassel-Witzenhausen and Göttingen, 2007.
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Embrapa Arroz e Feijão (CNPAF) |
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