Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos

Detalhes bibliográficos
Autor(a) principal: GALVIS, Olga Ximena Aguilar
Data de Publicação: 2018
Tipo de documento: Tese
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRPE
Texto Completo: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8113
Resumo: The objective of this study was to evaluate different carbohydrates sources associated with urea on intake, apparent digestibility of nutrients, productive and physiological response in goats. Thirty-one castrated males without a defined race and initial average weight of 19.8 ± 3.1 kg were randomly assigned to one of four treatments in a complete randomized design with the initial weight as a covariate. The treatments were: 1. corn + soybean meal, 2. corn + urea, 3. cassava meal (Manihot esculenta crantz) + urea and 4. cactus (Nopalea cochenillifera) + urea. All treatments had Tifton 85 (Cynodon spp) hay as roughage source (581.3 g kg -1 of DM), mineral salt mixture and ad libitum water access. The experiment lasted 120 days (30 days of adaptation and 90 days of measurements). The animals fed with cactus + urea presented lower ingestion of dry matter (497.5 g DM d-1, P < 0.05), which promoted lower intake of nutrients and metabolizable energy in comparison to diets with corn and cassava meal (743.6 g DM d-1). Crude protein intake was similar for treatments with corn (+ soybean or + urea (127.7 g d-1) and differed from cassava meal + urea and cactus+ urea (84.6 g d-1, P < 0.05). Apparent neutral detergent fiber corrected for ash and protein (NDFap) intake was lower with cactus + urea (292.8 g d-1, P < 0.05), however, when it was expressed in relation to live weigh was similar among different sources of carbohydrates (12.4 g d-1, P > 0.05). Apparent digestibility of DM (656.8 g kg-1), organic matter (675.9 g kg-1), NDFap (530.9 g kg-1), and non-fibrous carbohydrates (831.7 g kg-1), were similar among the sources of carbohydrates associated with urea (P < 0.05). The time spent for feeding (265.5 min dia-1), rumination (447.4 min dia-1) and idle (727.4 min dia-1) were similar among carbohydrates sources. Blood glucose concentration was lower for animals fed with cactus + urea, and lower concentrations of triglycerides and cholesterol were observed in animals fed with cassava meal. Retention of nitrogen (5.27 g d-1) and microbial protein synthesis (22 g d-1) was similar for all treatments. Corn + soybean meal had higher final body weight (29.3 kg FBW), daily average gain (104.0 g d-1 AG), empty body weight (22.9 kg EBW) compared with cassava diet or cactus + urea (25.2 kg and 20.7 kg FBW, 18.9 e 15.2 Kg EBW, 73.1 and 21.4 g d-1 AG, respectively P > 0.05). Animals fed with cassava + urea showed similarity in variables response to corn + urea and differ from cactus + urea. Cactus + urea reduced commercial yield compared with corn (+ soybean meal or + urea) (39.2% vs43.5% , P <0.05). The carcass compactness and leg muscle indexes, muscle: fat and muscle: bone ratio were similar in animals fed with cassava and corn diets (+ soybean meal + urea) and superior compared with cactus + urea (P <0.05). The pH of the carcass at 0h (6.85) and 24h (5.5) after slaughter, the proportion of commercial cuts in the carcass, the chemical composition in Semimembranosus muscle, physical-chemical characteristics except shear force were similar among carbohydrate sources associated with urea (P > 0.05). The results suggested that despite the lower weight of the carcass, meat characteristics and quality for animals fed with cassava meal + urea were similar to those fed corn + soybean meal, indicating that cassava meal + urea could substitute corn and soybean meal in tropical regions due to availability and cost. The replacement of corn by cactus associated with high levels of urea (30 g kg MS-1) decreased nutrient consumption and, therefore performance, yield and carcass characteristics.
id URPE_635b9b1d1299085feb192bf9adaa5e6a
oai_identifier_str oai:tede2:tede2/8113
network_acronym_str URPE
network_name_str Biblioteca Digital de Teses e Dissertações da UFRPE
repository_id_str
spelling CARVALHO, Francisco Fernando Ramos deBATISTA, Ângela Maria VieiraCABRAL, Ana Maria DuarteFERREIRA, Marcelo de AndradeMONNERAT, João Paulo Ismério dos SantosVÉRAS, Antonia Sherlânea ChavesBARRETO, Ligia Maria Gomeshttp://lattes.cnpq.br/7642900762783243GALVIS, Olga Ximena Aguilar2019-06-27T13:07:52Z2018-02-08GALVIS, Olga Ximena Aguilar. Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos. 2018. 91 f. Tese (Programa de Pós-Graduação em Zootecnia) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8113The objective of this study was to evaluate different carbohydrates sources associated with urea on intake, apparent digestibility of nutrients, productive and physiological response in goats. Thirty-one castrated males without a defined race and initial average weight of 19.8 ± 3.1 kg were randomly assigned to one of four treatments in a complete randomized design with the initial weight as a covariate. The treatments were: 1. corn + soybean meal, 2. corn + urea, 3. cassava meal (Manihot esculenta crantz) + urea and 4. cactus (Nopalea cochenillifera) + urea. All treatments had Tifton 85 (Cynodon spp) hay as roughage source (581.3 g kg -1 of DM), mineral salt mixture and ad libitum water access. The experiment lasted 120 days (30 days of adaptation and 90 days of measurements). The animals fed with cactus + urea presented lower ingestion of dry matter (497.5 g DM d-1, P < 0.05), which promoted lower intake of nutrients and metabolizable energy in comparison to diets with corn and cassava meal (743.6 g DM d-1). Crude protein intake was similar for treatments with corn (+ soybean or + urea (127.7 g d-1) and differed from cassava meal + urea and cactus+ urea (84.6 g d-1, P < 0.05). Apparent neutral detergent fiber corrected for ash and protein (NDFap) intake was lower with cactus + urea (292.8 g d-1, P < 0.05), however, when it was expressed in relation to live weigh was similar among different sources of carbohydrates (12.4 g d-1, P > 0.05). Apparent digestibility of DM (656.8 g kg-1), organic matter (675.9 g kg-1), NDFap (530.9 g kg-1), and non-fibrous carbohydrates (831.7 g kg-1), were similar among the sources of carbohydrates associated with urea (P < 0.05). The time spent for feeding (265.5 min dia-1), rumination (447.4 min dia-1) and idle (727.4 min dia-1) were similar among carbohydrates sources. Blood glucose concentration was lower for animals fed with cactus + urea, and lower concentrations of triglycerides and cholesterol were observed in animals fed with cassava meal. Retention of nitrogen (5.27 g d-1) and microbial protein synthesis (22 g d-1) was similar for all treatments. Corn + soybean meal had higher final body weight (29.3 kg FBW), daily average gain (104.0 g d-1 AG), empty body weight (22.9 kg EBW) compared with cassava diet or cactus + urea (25.2 kg and 20.7 kg FBW, 18.9 e 15.2 Kg EBW, 73.1 and 21.4 g d-1 AG, respectively P > 0.05). Animals fed with cassava + urea showed similarity in variables response to corn + urea and differ from cactus + urea. Cactus + urea reduced commercial yield compared with corn (+ soybean meal or + urea) (39.2% vs43.5% , P <0.05). The carcass compactness and leg muscle indexes, muscle: fat and muscle: bone ratio were similar in animals fed with cassava and corn diets (+ soybean meal + urea) and superior compared with cactus + urea (P <0.05). The pH of the carcass at 0h (6.85) and 24h (5.5) after slaughter, the proportion of commercial cuts in the carcass, the chemical composition in Semimembranosus muscle, physical-chemical characteristics except shear force were similar among carbohydrate sources associated with urea (P > 0.05). The results suggested that despite the lower weight of the carcass, meat characteristics and quality for animals fed with cassava meal + urea were similar to those fed corn + soybean meal, indicating that cassava meal + urea could substitute corn and soybean meal in tropical regions due to availability and cost. The replacement of corn by cactus associated with high levels of urea (30 g kg MS-1) decreased nutrient consumption and, therefore performance, yield and carcass characteristics.Objetivou-se avaliar diferentes fontes de carboidratos associadas à ureia sobre o consumo e digestibilidade aparente dos nutrientes, resposta produtiva e fisiológica em caprinos. Foram utilizados 31 machos castrados, sem padrão racial definido, peso inicial de 19,8 ± 3,1 kg delineamento inteiramente casualizado (peso inicial utilizado como co-variável), com quatro tratamentos: 1. milho + farelo de soja; 2. milho + ureia; 3. raspa de mandioca (Manihot esculenta crantz) + ureia; 4. Palma forrageira (Nopalea cochenillifera) + ureia. As dietas continham feno de Tifton 85 (Cynodon spp) (581,3 g kg-1) e mistura de sal mineral. O experimento abrangeu 30 dias de adaptação e 90 dias de coleta de dados. Os animais alimentados com palma forrageira + ureia apresentaram menor consumo de matéria seca (497,5 g MS d-1) (P<0,05), portanto, menor consumo de nutrientes e de energia metabolizável em relação às dietas contendo milho ou raspa de mandioca (743,6 g MS d-1). O consumo de proteína bruta foi maior nos animais alimentados com milho (+ farelo de soja ou + ureia) (127,7 g d-1) e diferiram das matérias primas alternativas (84,6 g d-1) (P<0,05). O consumo de fibra detergente Neutro corrigida para cinzas e proteína (FDNcp) foi inferior (P<0,05) nas dietas com palma forrageira + ureia (292,8 g d-1), mas quando se expresso em relação ao peso corporal foi semelhante entres os tratamentos (12,4 g kg PC-1) (P<0,05). Os coeficientes de digestibilidade (CD) aparente da MS (656,8 g kg1), MO (675,9 g kg1), FDNcp (530,9 g kg1), CNF (831,7 g kg1), foram similares entre as diferentes fontes de carboidratos associadas à ureia (P<0,05). O tempo despendido para atividades alimentação (265,5 min dia-1), ruminação (447,4 min dia-1) e ócio (727,4 min dia-1) foi semelhante (P>0,05). A concentração de glicose sanguínea foi menor para os animais alimentados com palma forrageira e foram observadas menores concentrações de triglicerídeos e colesterol nos animais alimentados com raspa de mandioca. O nitrogênio retido (5,27 g d-1) e sínteses de proteína microbiana (21.9 g d-1) foram similares (P>0,05). O ganho de peso (104,0 g d-1), peso corporal ao final PCF(29,3 kg) e peso do corpo vazio PCV (22,9 kg) foram maiores para os animais alimentados com milho+ farelo de soja diferente dos que receberam raspa de mandioca + ureia (73,1 g d-1) e palma forrageira + ureia (21,2 g d-1) com PCF 25,2 kg e 20,7 kg e PCV de 18,9 e 15,2 Kg para raspa de mandioca e palma forrageira (+ ureia), respectivamente (P>0,05). Os animais alimentados com raspa de mandioca + ureia apresentaram semelhança ao tratamento milho + ureia e diferem palma forrageira + ureia para estas variáveis. Os animais que receberam palma forrageira + ureia apresentaram menor (P<0,05) rendimento da carcaça fria (39,2%) em relação aos alimentados com milho (+ farelo de soja ou + ureia) (43,5%). Os índices de compacidade da carcaça e musculosidade da perna, razão músculo:gordura e músculo:osso nos animais alimentados com raspa de mandioca foram semelhantes as dietas com milho (+ farelo de soja ou + ureia) e superiores ao tratamento palma forrageira + ureia (P<0,05). O pH da carcaça 0 (6,9) e 24h (5,5) após o abate, a proporção dos cortes comercias na carcaça, composição química no músculo Semimembranosus, características físico-químicas foram semelhantes entre as fontes de carboidratos associadas à ureia (P>0,05). As características e qualidade da carne dos animais alimentados com raspa de mandioca + ureia foram próximas àqueles alimentados com milho + farelo soja, indicando que a raspa de mandioca + ureia pode substituir o milho e o farelo de soja na alimentação dos caprinos em regiões tropicais em função da disponibilidade e custo. A substituição do milho pela palma forrageira associada a altos níveis de ureia (30 g kg MS-1) diminui o consumo de nutrientes e, por conseguinte, o desempenho, rendimento e características da carcaça.Submitted by Mario BC (mario@bc.ufrpe.br) on 2019-06-27T13:07:52Z No. of bitstreams: 1 Olga Ximena Aguilar Galvis.pdf: 1155302 bytes, checksum: 85ae2a7d02a4b46673b5a406618dce38 (MD5)Made available in DSpace on 2019-06-27T13:07:52Z (GMT). No. of bitstreams: 1 Olga Ximena Aguilar Galvis.pdf: 1155302 bytes, checksum: 85ae2a7d02a4b46673b5a406618dce38 (MD5) Previous issue date: 2018-02-08Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em ZootecniaUFRPEBrasilDepartamento de ZootecniaNutrição animalCaprinoUreiaCarboidratoCIENCIAS AGRARIAS::ZOOTECNIAUtilização de ureia associada a fontes de carboidratos na alimentação de caprinosinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis-3881065194686295060600600600600-768565415068297243213468589812708456022075167498588264571info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPEORIGINALOlga Ximena Aguilar Galvis.pdfOlga Ximena Aguilar Galvis.pdfapplication/pdf1155302http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8113/2/Olga+Ximena+Aguilar+Galvis.pdf85ae2a7d02a4b46673b5a406618dce38MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8113/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51tede2/81132019-06-27 10:07:52.846oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2024-05-28T12:36:32.889459Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false
dc.title.por.fl_str_mv Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos
title Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos
spellingShingle Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos
GALVIS, Olga Ximena Aguilar
Nutrição animal
Caprino
Ureia
Carboidrato
CIENCIAS AGRARIAS::ZOOTECNIA
title_short Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos
title_full Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos
title_fullStr Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos
title_full_unstemmed Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos
title_sort Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos
author GALVIS, Olga Ximena Aguilar
author_facet GALVIS, Olga Ximena Aguilar
author_role author
dc.contributor.advisor1.fl_str_mv CARVALHO, Francisco Fernando Ramos de
dc.contributor.advisor-co1.fl_str_mv BATISTA, Ângela Maria Vieira
dc.contributor.advisor-co2.fl_str_mv CABRAL, Ana Maria Duarte
dc.contributor.referee1.fl_str_mv FERREIRA, Marcelo de Andrade
dc.contributor.referee2.fl_str_mv MONNERAT, João Paulo Ismério dos Santos
dc.contributor.referee3.fl_str_mv VÉRAS, Antonia Sherlânea Chaves
dc.contributor.referee4.fl_str_mv BARRETO, Ligia Maria Gomes
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/7642900762783243
dc.contributor.author.fl_str_mv GALVIS, Olga Ximena Aguilar
contributor_str_mv CARVALHO, Francisco Fernando Ramos de
BATISTA, Ângela Maria Vieira
CABRAL, Ana Maria Duarte
FERREIRA, Marcelo de Andrade
MONNERAT, João Paulo Ismério dos Santos
VÉRAS, Antonia Sherlânea Chaves
BARRETO, Ligia Maria Gomes
dc.subject.por.fl_str_mv Nutrição animal
Caprino
Ureia
Carboidrato
topic Nutrição animal
Caprino
Ureia
Carboidrato
CIENCIAS AGRARIAS::ZOOTECNIA
dc.subject.cnpq.fl_str_mv CIENCIAS AGRARIAS::ZOOTECNIA
description The objective of this study was to evaluate different carbohydrates sources associated with urea on intake, apparent digestibility of nutrients, productive and physiological response in goats. Thirty-one castrated males without a defined race and initial average weight of 19.8 ± 3.1 kg were randomly assigned to one of four treatments in a complete randomized design with the initial weight as a covariate. The treatments were: 1. corn + soybean meal, 2. corn + urea, 3. cassava meal (Manihot esculenta crantz) + urea and 4. cactus (Nopalea cochenillifera) + urea. All treatments had Tifton 85 (Cynodon spp) hay as roughage source (581.3 g kg -1 of DM), mineral salt mixture and ad libitum water access. The experiment lasted 120 days (30 days of adaptation and 90 days of measurements). The animals fed with cactus + urea presented lower ingestion of dry matter (497.5 g DM d-1, P < 0.05), which promoted lower intake of nutrients and metabolizable energy in comparison to diets with corn and cassava meal (743.6 g DM d-1). Crude protein intake was similar for treatments with corn (+ soybean or + urea (127.7 g d-1) and differed from cassava meal + urea and cactus+ urea (84.6 g d-1, P < 0.05). Apparent neutral detergent fiber corrected for ash and protein (NDFap) intake was lower with cactus + urea (292.8 g d-1, P < 0.05), however, when it was expressed in relation to live weigh was similar among different sources of carbohydrates (12.4 g d-1, P > 0.05). Apparent digestibility of DM (656.8 g kg-1), organic matter (675.9 g kg-1), NDFap (530.9 g kg-1), and non-fibrous carbohydrates (831.7 g kg-1), were similar among the sources of carbohydrates associated with urea (P < 0.05). The time spent for feeding (265.5 min dia-1), rumination (447.4 min dia-1) and idle (727.4 min dia-1) were similar among carbohydrates sources. Blood glucose concentration was lower for animals fed with cactus + urea, and lower concentrations of triglycerides and cholesterol were observed in animals fed with cassava meal. Retention of nitrogen (5.27 g d-1) and microbial protein synthesis (22 g d-1) was similar for all treatments. Corn + soybean meal had higher final body weight (29.3 kg FBW), daily average gain (104.0 g d-1 AG), empty body weight (22.9 kg EBW) compared with cassava diet or cactus + urea (25.2 kg and 20.7 kg FBW, 18.9 e 15.2 Kg EBW, 73.1 and 21.4 g d-1 AG, respectively P > 0.05). Animals fed with cassava + urea showed similarity in variables response to corn + urea and differ from cactus + urea. Cactus + urea reduced commercial yield compared with corn (+ soybean meal or + urea) (39.2% vs43.5% , P <0.05). The carcass compactness and leg muscle indexes, muscle: fat and muscle: bone ratio were similar in animals fed with cassava and corn diets (+ soybean meal + urea) and superior compared with cactus + urea (P <0.05). The pH of the carcass at 0h (6.85) and 24h (5.5) after slaughter, the proportion of commercial cuts in the carcass, the chemical composition in Semimembranosus muscle, physical-chemical characteristics except shear force were similar among carbohydrate sources associated with urea (P > 0.05). The results suggested that despite the lower weight of the carcass, meat characteristics and quality for animals fed with cassava meal + urea were similar to those fed corn + soybean meal, indicating that cassava meal + urea could substitute corn and soybean meal in tropical regions due to availability and cost. The replacement of corn by cactus associated with high levels of urea (30 g kg MS-1) decreased nutrient consumption and, therefore performance, yield and carcass characteristics.
publishDate 2018
dc.date.issued.fl_str_mv 2018-02-08
dc.date.accessioned.fl_str_mv 2019-06-27T13:07:52Z
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.citation.fl_str_mv GALVIS, Olga Ximena Aguilar. Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos. 2018. 91 f. Tese (Programa de Pós-Graduação em Zootecnia) - Universidade Federal Rural de Pernambuco, Recife.
dc.identifier.uri.fl_str_mv http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8113
identifier_str_mv GALVIS, Olga Ximena Aguilar. Utilização de ureia associada a fontes de carboidratos na alimentação de caprinos. 2018. 91 f. Tese (Programa de Pós-Graduação em Zootecnia) - Universidade Federal Rural de Pernambuco, Recife.
url http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8113
dc.language.iso.fl_str_mv por
language por
dc.relation.program.fl_str_mv -3881065194686295060
dc.relation.confidence.fl_str_mv 600
600
600
600
dc.relation.department.fl_str_mv -7685654150682972432
dc.relation.cnpq.fl_str_mv 1346858981270845602
dc.relation.sponsorship.fl_str_mv 2075167498588264571
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural de Pernambuco
dc.publisher.program.fl_str_mv Programa de Pós-Graduação em Zootecnia
dc.publisher.initials.fl_str_mv UFRPE
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Departamento de Zootecnia
publisher.none.fl_str_mv Universidade Federal Rural de Pernambuco
dc.source.none.fl_str_mv reponame:Biblioteca Digital de Teses e Dissertações da UFRPE
instname:Universidade Federal Rural de Pernambuco (UFRPE)
instacron:UFRPE
instname_str Universidade Federal Rural de Pernambuco (UFRPE)
instacron_str UFRPE
institution UFRPE
reponame_str Biblioteca Digital de Teses e Dissertações da UFRPE
collection Biblioteca Digital de Teses e Dissertações da UFRPE
bitstream.url.fl_str_mv http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8113/2/Olga+Ximena+Aguilar+Galvis.pdf
http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8113/1/license.txt
bitstream.checksum.fl_str_mv 85ae2a7d02a4b46673b5a406618dce38
bd3efa91386c1718a7f26a329fdcb468
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
repository.name.fl_str_mv Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)
repository.mail.fl_str_mv bdtd@ufrpe.br ||bdtd@ufrpe.br
_version_ 1810102259495731200