Caracterização do leite ovino em função do período de lactação
Ano de defesa: | 2012 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos
|
Departamento: |
Ciência e Tecnologia dos Alimentos
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/5713 |
Resumo: | Sheep milk is produced in Brazil mainly in the South and Southeast regions and, because it has a higher content of solids than cow milk, it is usually processed into dairy products, especially cheese and yogurt. In this sense, the reduced number of studies in the area, associated to the lack of scientific information related to dairy products from ovine culture, stimulated the creation of the present study that aims to evaluate the physicochemical composition and to determine and analyze the content of mineral elements and the profile of fatty acids of sheep milk, related to the period of lactation. Two treatments were used: treatment 1 with milk of ½ Laucane blood sheep and treatment 2 with milk of Ile de France x Texel crossbred sheep, which were milked from the 1st to the 10th week of lactation. The progress in the lactation period of ½ blood and crossbred sheep showed an increase in fat content, with 7.37 and 6.47% in the first week passing to 7.54 and 7.62% in the last week, respectively. The values of protein were 4.75% for ½ Laucane blood sheep and 4.97% for Ile de France x Texel crossbred sheep in the beginning of the lactation reaching the tenth week with values of 4.67 and 4.61%, respectively. There is a higher concentration of saturated fatty acids for the Ile de France x Texel crossbred sheep with values oscillating between 67.09 and 74.65%. Regarding the concentrations of mono and polyunsaturated fatty acids, a superiority for ½ Laucane blood sheep was observed, with values of monounsaturated fatty acids ranging from 22.50 to 28.50% and polyunsaturated from 4.52 to 5.20%. The mineral elements Ca, S, P, Mg, K and Na present in ovine milk did not show a pattern of variation during the evaluated lactation period for both genetic groups. The Ca content was higher for the milk of ½ Laucane blood sheep, demonstrating a variation between 131.63 and 218.49 mg/100 mL. The amount of P obtained in ovine milk was lower than that of Ca, where ½ Laucane blood sheep showed higher values, presenting the same behavior that the element Ca. The Na and K content was higher in the milk of ½ Laucane blood sheep, not differing significantly in the fourth and fifth weeks for the two genetic groups evaluated, in the same way that K did not differ in the third week of lactation either. Similar to the other minerals, S and Mg content was lower for Ile de France x Texel crossbred sheep. |
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2012-09-132012-09-132012-02-15PELLEGRINI, Luiz Gustavo de. Characterization of ovine milk with respect to the period of lactation. 2012. 60 f. Dissertação (Mestrado em Ciência e Tecnologia dos Alimentos) - Universidade Federal de Santa Maria, Santa Maria, 2012.http://repositorio.ufsm.br/handle/1/5713Sheep milk is produced in Brazil mainly in the South and Southeast regions and, because it has a higher content of solids than cow milk, it is usually processed into dairy products, especially cheese and yogurt. In this sense, the reduced number of studies in the area, associated to the lack of scientific information related to dairy products from ovine culture, stimulated the creation of the present study that aims to evaluate the physicochemical composition and to determine and analyze the content of mineral elements and the profile of fatty acids of sheep milk, related to the period of lactation. Two treatments were used: treatment 1 with milk of ½ Laucane blood sheep and treatment 2 with milk of Ile de France x Texel crossbred sheep, which were milked from the 1st to the 10th week of lactation. The progress in the lactation period of ½ blood and crossbred sheep showed an increase in fat content, with 7.37 and 6.47% in the first week passing to 7.54 and 7.62% in the last week, respectively. The values of protein were 4.75% for ½ Laucane blood sheep and 4.97% for Ile de France x Texel crossbred sheep in the beginning of the lactation reaching the tenth week with values of 4.67 and 4.61%, respectively. There is a higher concentration of saturated fatty acids for the Ile de France x Texel crossbred sheep with values oscillating between 67.09 and 74.65%. Regarding the concentrations of mono and polyunsaturated fatty acids, a superiority for ½ Laucane blood sheep was observed, with values of monounsaturated fatty acids ranging from 22.50 to 28.50% and polyunsaturated from 4.52 to 5.20%. The mineral elements Ca, S, P, Mg, K and Na present in ovine milk did not show a pattern of variation during the evaluated lactation period for both genetic groups. The Ca content was higher for the milk of ½ Laucane blood sheep, demonstrating a variation between 131.63 and 218.49 mg/100 mL. The amount of P obtained in ovine milk was lower than that of Ca, where ½ Laucane blood sheep showed higher values, presenting the same behavior that the element Ca. The Na and K content was higher in the milk of ½ Laucane blood sheep, not differing significantly in the fourth and fifth weeks for the two genetic groups evaluated, in the same way that K did not differ in the third week of lactation either. Similar to the other minerals, S and Mg content was lower for Ile de France x Texel crossbred sheep.O leite de ovelha é produzido no Brasil principalmente nas regiões Sul e Sudeste e, por apresentar maior teor de sólidos do que o leite de vaca, geralmente é processado em derivados lácteos, especialmente queijos e iogurtes. Neste sentido, o reduzido número de trabalhos realizados na área, associado à carência de informações científicas relacionadas aos produtos lácteos oriundos da ovinocultura estimularam a realização do presente trabalho com o objetivo de avaliar a composição físico-química e, determinar e analisar o teor dos elementos minerais e o perfil de ácidos graxos do leite de ovelhas, em relação ao período de lactação. Foram utilizados dois tratamentos, leite de ovelhas ½ sangue Lacaune e o leite de ovelhas cruza Ile de France x Texel, sendo estas ordenhadas da 1ª a 10ª semana de lactação. Com avanço no período de lactação, ovelhas ½ sangue e cruza apresentaram aumento no teor de gordura, com 7,37 e 6,47 % na primeira semana passando a 7,54 e 7,62 % na última semana, respectivamente. Os valores encontrados de proteína foram de 4,75 % para as ovelhas ½ sangue Lacaune e 4,97 % para as cruzas Ile de France x Texel no início da lactação chegando a décima semana com valores de 4,67 e 4,61 %, respectivamente. Há maior concentração de ácidos graxos saturados para as ovelhas cruza Ile de France x Texel com valores oscilando entre 67,09 e 74,65 %. Com relação às concentrações de ácidos graxos mono e poliinsaturados observa-se superioridade para ovelhas ½ sangue Lacaune, com valores de ácidos graxos monoinsaturados variando entre 22,50 a 28,59 % e poliinsaturados de 4,57 a 5,20%. Os elementos minerais Ca, S, P, Mg, K e Na presentes no leite ovino, não apresentaram um padrão de variação durante o período de lactação avaliado para ambos grupos genéticos. O teor de cálcio foi superior para o leite das ovelhas ½ sangue Lacaune, demonstrando uma variação entre 131,63 a 218,49 mg/100mL. A quantidade de P obtida no leite ovino foi menor que a de Ca, onde ovelhas ½ sangue Lacaune apresentaram valores superiores, apresentando o mesmo comportamento que o elemento Ca. O teor de Na e K apresentou-se mais elevado no leite das ovelhas ½ sangue Lacaune, não diferindo significativamente na quarta e quinta semana para os dois grupos genéticos avaliados, da mesma forma que o potássio também não diferiu na terceira semana de lactação. De forma semelhante aos demais minerais, os teores de S e Mg foram menores para as ovelhas cruza Ile de France x Texel.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em Ciência e Tecnologia dos AlimentosUFSMBRCiência e Tecnologia dos AlimentosLeite de ovelhaGenótiposComposiçãoPerfil lipídicoMineraisMilkSheepGenotypesCompositionLipid profileMineralsCNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOSCaracterização do leite ovino em função do período de lactaçãoCharacterization of ovine milk with respect to the period of lactationinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisRichards, Neila Silvia Pereira dos Santoshttp://lattes.cnpq.br/0618653776990780Pinto, Andrea Trollerhttp://lattes.cnpq.br/5128560186039381Viégas, Juliohttp://lattes.cnpq.br/6750187644177333http://lattes.cnpq.br/8510670773789181Pellegrini, Luiz Gustavo de5007000000064005003003005006698fb34-e594-4cf4-a9c3-f688b9a456c3a6eff8d9-0bba-44f6-ba25-3b3256633572aa5d5b39-41ab-4931-9e6b-5edfcc756526daa5418c-de3e-4713-8dc6-4a8e8dba8d1ainfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALPELLEGRINI, LUIZ GUSTAVO DE.pdfapplication/pdf282672http://repositorio.ufsm.br/bitstream/1/5713/1/PELLEGRINI%2c%20LUIZ%20GUSTAVO%20DE.pdff64d2789e3b78ef624e4ef10f1f76e2eMD51TEXTPELLEGRINI, LUIZ GUSTAVO DE.pdf.txtPELLEGRINI, LUIZ GUSTAVO DE.pdf.txtExtracted texttext/plain131707http://repositorio.ufsm.br/bitstream/1/5713/2/PELLEGRINI%2c%20LUIZ%20GUSTAVO%20DE.pdf.txt5f83409cbfd45afe08adba6135dbd70bMD52THUMBNAILPELLEGRINI, LUIZ GUSTAVO DE.pdf.jpgPELLEGRINI, LUIZ GUSTAVO DE.pdf.jpgIM Thumbnailimage/jpeg5133http://repositorio.ufsm.br/bitstream/1/5713/3/PELLEGRINI%2c%20LUIZ%20GUSTAVO%20DE.pdf.jpg060c2b0740a78a073da2a38712f82a87MD531/57132023-06-23 17:12:03.29oai:repositorio.ufsm.br:1/5713Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2023-06-23T20:12:03Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Caracterização do leite ovino em função do período de lactação |
dc.title.alternative.eng.fl_str_mv |
Characterization of ovine milk with respect to the period of lactation |
title |
Caracterização do leite ovino em função do período de lactação |
spellingShingle |
Caracterização do leite ovino em função do período de lactação Pellegrini, Luiz Gustavo de Leite de ovelha Genótipos Composição Perfil lipídico Minerais Milk Sheep Genotypes Composition Lipid profile Minerals CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
title_short |
Caracterização do leite ovino em função do período de lactação |
title_full |
Caracterização do leite ovino em função do período de lactação |
title_fullStr |
Caracterização do leite ovino em função do período de lactação |
title_full_unstemmed |
Caracterização do leite ovino em função do período de lactação |
title_sort |
Caracterização do leite ovino em função do período de lactação |
author |
Pellegrini, Luiz Gustavo de |
author_facet |
Pellegrini, Luiz Gustavo de |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Richards, Neila Silvia Pereira dos Santos |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/0618653776990780 |
dc.contributor.referee1.fl_str_mv |
Pinto, Andrea Troller |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/5128560186039381 |
dc.contributor.referee2.fl_str_mv |
Viégas, Julio |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/6750187644177333 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/8510670773789181 |
dc.contributor.author.fl_str_mv |
Pellegrini, Luiz Gustavo de |
contributor_str_mv |
Richards, Neila Silvia Pereira dos Santos Pinto, Andrea Troller Viégas, Julio |
dc.subject.por.fl_str_mv |
Leite de ovelha Genótipos Composição Perfil lipídico Minerais |
topic |
Leite de ovelha Genótipos Composição Perfil lipídico Minerais Milk Sheep Genotypes Composition Lipid profile Minerals CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
dc.subject.eng.fl_str_mv |
Milk Sheep Genotypes Composition Lipid profile Minerals |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
description |
Sheep milk is produced in Brazil mainly in the South and Southeast regions and, because it has a higher content of solids than cow milk, it is usually processed into dairy products, especially cheese and yogurt. In this sense, the reduced number of studies in the area, associated to the lack of scientific information related to dairy products from ovine culture, stimulated the creation of the present study that aims to evaluate the physicochemical composition and to determine and analyze the content of mineral elements and the profile of fatty acids of sheep milk, related to the period of lactation. Two treatments were used: treatment 1 with milk of ½ Laucane blood sheep and treatment 2 with milk of Ile de France x Texel crossbred sheep, which were milked from the 1st to the 10th week of lactation. The progress in the lactation period of ½ blood and crossbred sheep showed an increase in fat content, with 7.37 and 6.47% in the first week passing to 7.54 and 7.62% in the last week, respectively. The values of protein were 4.75% for ½ Laucane blood sheep and 4.97% for Ile de France x Texel crossbred sheep in the beginning of the lactation reaching the tenth week with values of 4.67 and 4.61%, respectively. There is a higher concentration of saturated fatty acids for the Ile de France x Texel crossbred sheep with values oscillating between 67.09 and 74.65%. Regarding the concentrations of mono and polyunsaturated fatty acids, a superiority for ½ Laucane blood sheep was observed, with values of monounsaturated fatty acids ranging from 22.50 to 28.50% and polyunsaturated from 4.52 to 5.20%. The mineral elements Ca, S, P, Mg, K and Na present in ovine milk did not show a pattern of variation during the evaluated lactation period for both genetic groups. The Ca content was higher for the milk of ½ Laucane blood sheep, demonstrating a variation between 131.63 and 218.49 mg/100 mL. The amount of P obtained in ovine milk was lower than that of Ca, where ½ Laucane blood sheep showed higher values, presenting the same behavior that the element Ca. The Na and K content was higher in the milk of ½ Laucane blood sheep, not differing significantly in the fourth and fifth weeks for the two genetic groups evaluated, in the same way that K did not differ in the third week of lactation either. Similar to the other minerals, S and Mg content was lower for Ile de France x Texel crossbred sheep. |
publishDate |
2012 |
dc.date.accessioned.fl_str_mv |
2012-09-13 |
dc.date.available.fl_str_mv |
2012-09-13 |
dc.date.issued.fl_str_mv |
2012-02-15 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PELLEGRINI, Luiz Gustavo de. Characterization of ovine milk with respect to the period of lactation. 2012. 60 f. Dissertação (Mestrado em Ciência e Tecnologia dos Alimentos) - Universidade Federal de Santa Maria, Santa Maria, 2012. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/5713 |
identifier_str_mv |
PELLEGRINI, Luiz Gustavo de. Characterization of ovine milk with respect to the period of lactation. 2012. 60 f. Dissertação (Mestrado em Ciência e Tecnologia dos Alimentos) - Universidade Federal de Santa Maria, Santa Maria, 2012. |
url |
http://repositorio.ufsm.br/handle/1/5713 |
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por |
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500700000006 |
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Universidade Federal de Santa Maria |
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Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos |
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UFSM |
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BR |
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Ciência e Tecnologia dos Alimentos |
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Universidade Federal de Santa Maria |
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