Sistema alimentar de cabras em lactação como fator indutor da qualidade do leite.
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFPB |
Texto Completo: | https://repositorio.ufpb.br/jspui/handle/123456789/18973 |
Resumo: | Innovating the goat's feeding system in the conditions of the semi-arid can be a means of aggregation of value to its products such as the quality, flavour and induction of beneficial substances to consumers ' health. In this context, it was aimed to evaluate feeding systems of lactating goats as a factor of inducing the quality of the milk, as well as its performance in the conditions of the semi-arid. Eighteen crossbred goats (Saanen and Alpine- american) were used for the experiment, distributed in a completely randomized design with three treatments. Experimental treatments consisted of: confined goats receiving diet with elephant grass hay and concentrate (CS); Goats in a confined system receiving diet with elephantgrass hay, concentrate and forage palm (PCS) and goats in a pasture system with supplementation of 1.5% in relation to body weight (SPS). Except for the NDF and TDN, the goats have diferente performance (P<0,05) compared to the rated feeding systems. In relation to the apparent digestibility, it differed from the EE, TCH and FNC differed, where the DEE was lower (P <0.05) for SCP goats compared to the other systems studied, and the apparent digestibility of THC and FNC was higher (P <0.05) for SCP goats. Ruminal pH values were within the optimum range for adequate fermentation in the ruminal environment. The observed N-NH 3 concentrations were not limiting for microbial growth. As for PL and PLCG 4% (kg / day), the SCP goats presented higher yields (P <0.05) than the other systems. Total protein, albumin, uric acid, glucose, AST, GGT, phosphorus, sodium and chloride were influenced in their concentration by the time of collection. In relation to the feeding systems, these differed (P <0.05), influencing the blood parameters with the exception of serum calcium. For the studied plant species, the phytochemical prospection verified the presence of relevant secondary metabolites, mainly steroids, flavonoids and tannins. The total phenol content in the milk did not show a significant difference (P <0.05), however the SPS animals obtained higher (P = 0.0443) concentrations of flavonoids when compared to the milk of SCP animals. The antioxidant activity presented significant difference only for DPPH, being higher (P = 0.0243) for SC animals than SPS. The milk of SCP-fed animals obtained higher concentrations of saturated fatty acids (SFA). The milk of SPS animals had a higher fat content when compared to the SCP system, besides having a higher quantity of polyunsaturated fatty acids (PUFA) and some monounsaturated fatty acids (MUFAs), including the monounsaturated C16: 1c7, the cis and trans isomers of C18: 1, linoleic acid (C18: 2n6) and linolenic acid (C18: 3n3). The diets also conferred sensorial changes in the milk for the parameters: characteristic taste, persistence and intensity after test and global acceptance. SCS milk was described with lower goat flavor, persistence and intensity after test, and the overall acceptance was higher than the other evaluated systems. |
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Sistema alimentar de cabras em lactação como fator indutor da qualidade do leite.Caatinga.Caprinos.Palma forrageira.Perfil sanguíneo.Semiárido.Sensorial.CNPQ::CIENCIAS AGRARIAS::ZOOTECNIAInnovating the goat's feeding system in the conditions of the semi-arid can be a means of aggregation of value to its products such as the quality, flavour and induction of beneficial substances to consumers ' health. In this context, it was aimed to evaluate feeding systems of lactating goats as a factor of inducing the quality of the milk, as well as its performance in the conditions of the semi-arid. Eighteen crossbred goats (Saanen and Alpine- american) were used for the experiment, distributed in a completely randomized design with three treatments. Experimental treatments consisted of: confined goats receiving diet with elephant grass hay and concentrate (CS); Goats in a confined system receiving diet with elephantgrass hay, concentrate and forage palm (PCS) and goats in a pasture system with supplementation of 1.5% in relation to body weight (SPS). Except for the NDF and TDN, the goats have diferente performance (P<0,05) compared to the rated feeding systems. In relation to the apparent digestibility, it differed from the EE, TCH and FNC differed, where the DEE was lower (P <0.05) for SCP goats compared to the other systems studied, and the apparent digestibility of THC and FNC was higher (P <0.05) for SCP goats. Ruminal pH values were within the optimum range for adequate fermentation in the ruminal environment. The observed N-NH 3 concentrations were not limiting for microbial growth. As for PL and PLCG 4% (kg / day), the SCP goats presented higher yields (P <0.05) than the other systems. Total protein, albumin, uric acid, glucose, AST, GGT, phosphorus, sodium and chloride were influenced in their concentration by the time of collection. In relation to the feeding systems, these differed (P <0.05), influencing the blood parameters with the exception of serum calcium. For the studied plant species, the phytochemical prospection verified the presence of relevant secondary metabolites, mainly steroids, flavonoids and tannins. The total phenol content in the milk did not show a significant difference (P <0.05), however the SPS animals obtained higher (P = 0.0443) concentrations of flavonoids when compared to the milk of SCP animals. The antioxidant activity presented significant difference only for DPPH, being higher (P = 0.0243) for SC animals than SPS. The milk of SCP-fed animals obtained higher concentrations of saturated fatty acids (SFA). The milk of SPS animals had a higher fat content when compared to the SCP system, besides having a higher quantity of polyunsaturated fatty acids (PUFA) and some monounsaturated fatty acids (MUFAs), including the monounsaturated C16: 1c7, the cis and trans isomers of C18: 1, linoleic acid (C18: 2n6) and linolenic acid (C18: 3n3). The diets also conferred sensorial changes in the milk for the parameters: characteristic taste, persistence and intensity after test and global acceptance. SCS milk was described with lower goat flavor, persistence and intensity after test, and the overall acceptance was higher than the other evaluated systems.Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqInovar o sistema de alimentação da caprinocultura nas condições do Semiárido pode ser uma via de agregação de valor aos seus produtos tais como a qualidade, sabor e indução de substancias benéficas a saúde dos consumidores. Neste contexto, objetivou-se avaliar sistemas alimentação de cabras em lactação como fator de induzir a qualidade do leite, bem como o seu desempenho nas condições do Semiárido. Dezoito cabras mestiças (Saanen e Alpina-americana) foram utilizadas no experimento, distribuídas em delineamento inteiramente casualizado com três tratamentos. Os tratamentos experimentais consistiram em: cabras em sistema confinado recebendo dieta com feno de capim elefante e concentrado (SC); cabras em sistema confinado recebendo dieta com feno de capim elefante, concentrado e palma forrageira (SCP) e cabras em sistema a pasto com suplementação de 1,5%, em relação ao peso corporal (SPS). Exceto para o FDN e NDT, as cabras tiveram desempenho diferente (P<0,05) em relação aos sistemas de alimentação avaliados. Em relação a digestibilidade aparente, diferiram o EE, CHOT e os CNF, onde a DEE foi menor (P<0,05) para cabras SCP comparado aos outros sistemas estudados, e a digestibilidade aparente dos CHOT e CNF foi maior (P<0,05) para as cabras em SCP. O pH ruminal não foi alterado de forma que permaneceu dentro da faixa ótima para a fermentação no ambiente ruminal. As concentrações de N-NH3 observadas não eram limitantes para o crescimento microbiano. Quanto a PL e PLCG 4% (kg/dia), as cabras em SCP apresentaram maiores produções (P<0,05) em relação aos demais sistemas. A ureia, creatinina, ácido úrico, glicose, AST, GGT e fosforo sofreram influência na sua concentração em relação aos sistemas de alimentação. Para as espécies vegetais estudadas, a prospecção fitoquímica constatou a presença de metabolitos secundários relevantes, principalmente esteroides, flavonoides e taninos. O teor de fenóis totais e flavonoides no leite não apresentou diferença significativa (P>0,05). A atividade antioxidante apresentou diferença apenas para o DPPH, sendo maior (P=0,0243) para animais em SC em relação ao SPS. O leite de animais alimentadas em SCP obtiveram maiores concentrações de ácidos graxos saturados (SFA). Já o leite de animais em SPS apresentaram maior teor de gordura quando comparado com o sistema SCP, além de apresentar maior quantidade de ácidos polinsaturados (PUFA) e alguns monoinsaturados (MUFA), incluindo os monoinsaturados C16:1c7, os isômeros cis e trans de C18:1, o ácido linoleico (C18:2n6) e linolênico (C18:3n3). As dietas também conferiram mudanças sensoriais no leite para os parâmetros: sabor característico, persistência e intensidade after test e aceitação global. O leite SPS foi descrito com menor sabor característico de cabra, persistência e intensidade after test, sendo a aceitação global maior em comparação aos outros sistemas avaliados.Universidade Federal da ParaíbaBrasilZootecniaPrograma de Pós-Graduação em ZootecniaUFPBMedeiros, Ariosvaldo Nunes dehttp://lattes.cnpq.br/7152553137665884Queiroga, Rita de Cássia Ramos do Egyptohttp://lattes.cnpq.br/4444927668450146Andrade, Alberício Pereira dehttp://lattes.cnpq.br/3850491807035834Fernandes, Beatriz Dantas Oliveira2020-12-28T13:38:06Z2018-09-042020-12-28T13:38:06Z2018-02-27info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesishttps://repositorio.ufpb.br/jspui/handle/123456789/18973porAttribution-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nd/3.0/br/info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFPBinstname:Universidade Federal da Paraíba (UFPB)instacron:UFPB2020-12-29T06:14:21Zoai:repositorio.ufpb.br:123456789/18973Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufpb.br/PUBhttp://tede.biblioteca.ufpb.br:8080/oai/requestdiretoria@ufpb.br|| diretoria@ufpb.bropendoar:2020-12-29T06:14:21Biblioteca Digital de Teses e Dissertações da UFPB - Universidade Federal da Paraíba (UFPB)false |
dc.title.none.fl_str_mv |
Sistema alimentar de cabras em lactação como fator indutor da qualidade do leite. |
title |
Sistema alimentar de cabras em lactação como fator indutor da qualidade do leite. |
spellingShingle |
Sistema alimentar de cabras em lactação como fator indutor da qualidade do leite. Fernandes, Beatriz Dantas Oliveira Caatinga. Caprinos. Palma forrageira. Perfil sanguíneo. Semiárido. Sensorial. CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
title_short |
Sistema alimentar de cabras em lactação como fator indutor da qualidade do leite. |
title_full |
Sistema alimentar de cabras em lactação como fator indutor da qualidade do leite. |
title_fullStr |
Sistema alimentar de cabras em lactação como fator indutor da qualidade do leite. |
title_full_unstemmed |
Sistema alimentar de cabras em lactação como fator indutor da qualidade do leite. |
title_sort |
Sistema alimentar de cabras em lactação como fator indutor da qualidade do leite. |
author |
Fernandes, Beatriz Dantas Oliveira |
author_facet |
Fernandes, Beatriz Dantas Oliveira |
author_role |
author |
dc.contributor.none.fl_str_mv |
Medeiros, Ariosvaldo Nunes de http://lattes.cnpq.br/7152553137665884 Queiroga, Rita de Cássia Ramos do Egypto http://lattes.cnpq.br/4444927668450146 Andrade, Alberício Pereira de http://lattes.cnpq.br/3850491807035834 |
dc.contributor.author.fl_str_mv |
Fernandes, Beatriz Dantas Oliveira |
dc.subject.por.fl_str_mv |
Caatinga. Caprinos. Palma forrageira. Perfil sanguíneo. Semiárido. Sensorial. CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
topic |
Caatinga. Caprinos. Palma forrageira. Perfil sanguíneo. Semiárido. Sensorial. CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
description |
Innovating the goat's feeding system in the conditions of the semi-arid can be a means of aggregation of value to its products such as the quality, flavour and induction of beneficial substances to consumers ' health. In this context, it was aimed to evaluate feeding systems of lactating goats as a factor of inducing the quality of the milk, as well as its performance in the conditions of the semi-arid. Eighteen crossbred goats (Saanen and Alpine- american) were used for the experiment, distributed in a completely randomized design with three treatments. Experimental treatments consisted of: confined goats receiving diet with elephant grass hay and concentrate (CS); Goats in a confined system receiving diet with elephantgrass hay, concentrate and forage palm (PCS) and goats in a pasture system with supplementation of 1.5% in relation to body weight (SPS). Except for the NDF and TDN, the goats have diferente performance (P<0,05) compared to the rated feeding systems. In relation to the apparent digestibility, it differed from the EE, TCH and FNC differed, where the DEE was lower (P <0.05) for SCP goats compared to the other systems studied, and the apparent digestibility of THC and FNC was higher (P <0.05) for SCP goats. Ruminal pH values were within the optimum range for adequate fermentation in the ruminal environment. The observed N-NH 3 concentrations were not limiting for microbial growth. As for PL and PLCG 4% (kg / day), the SCP goats presented higher yields (P <0.05) than the other systems. Total protein, albumin, uric acid, glucose, AST, GGT, phosphorus, sodium and chloride were influenced in their concentration by the time of collection. In relation to the feeding systems, these differed (P <0.05), influencing the blood parameters with the exception of serum calcium. For the studied plant species, the phytochemical prospection verified the presence of relevant secondary metabolites, mainly steroids, flavonoids and tannins. The total phenol content in the milk did not show a significant difference (P <0.05), however the SPS animals obtained higher (P = 0.0443) concentrations of flavonoids when compared to the milk of SCP animals. The antioxidant activity presented significant difference only for DPPH, being higher (P = 0.0243) for SC animals than SPS. The milk of SCP-fed animals obtained higher concentrations of saturated fatty acids (SFA). The milk of SPS animals had a higher fat content when compared to the SCP system, besides having a higher quantity of polyunsaturated fatty acids (PUFA) and some monounsaturated fatty acids (MUFAs), including the monounsaturated C16: 1c7, the cis and trans isomers of C18: 1, linoleic acid (C18: 2n6) and linolenic acid (C18: 3n3). The diets also conferred sensorial changes in the milk for the parameters: characteristic taste, persistence and intensity after test and global acceptance. SCS milk was described with lower goat flavor, persistence and intensity after test, and the overall acceptance was higher than the other evaluated systems. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-09-04 2018-02-27 2020-12-28T13:38:06Z 2020-12-28T13:38:06Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufpb.br/jspui/handle/123456789/18973 |
url |
https://repositorio.ufpb.br/jspui/handle/123456789/18973 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nd/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal da Paraíba Brasil Zootecnia Programa de Pós-Graduação em Zootecnia UFPB |
publisher.none.fl_str_mv |
Universidade Federal da Paraíba Brasil Zootecnia Programa de Pós-Graduação em Zootecnia UFPB |
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reponame:Biblioteca Digital de Teses e Dissertações da UFPB instname:Universidade Federal da Paraíba (UFPB) instacron:UFPB |
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Universidade Federal da Paraíba (UFPB) |
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UFPB |
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UFPB |
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Biblioteca Digital de Teses e Dissertações da UFPB |
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Biblioteca Digital de Teses e Dissertações da UFPB |
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Biblioteca Digital de Teses e Dissertações da UFPB - Universidade Federal da Paraíba (UFPB) |
repository.mail.fl_str_mv |
diretoria@ufpb.br|| diretoria@ufpb.br |
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1801843022258765824 |