Suplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e características nutricionais e produtivas de vacas de corte
Autor(a) principal: | |
---|---|
Data de Publicação: | 2012 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://locus.ufv.br/handle/123456789/5773 |
Resumo: | The objective of this investigation was based on an experiment related to animal production and nutritional evaluations of calves and their mothers which were kept on pasture. Calves were supplemented with creep-feeding techniques. The experiment was aimed to assess the efficacy of supplementation of heifers calves with different levels of crude protein and assess the nutritional characteristics and production of beef cows. 60 heifer calves were used; predominantly Nelore blood, aged between 126 ± 3,08 days, and an average initial weight of 123 ± 3,09 kg. Their mothers with initial weight and body condition score of 450 ± 6,97 kg and 3,7 ± 0,07, respectively. The experimental design was completely randomized with six treatments and ten repetitions. Treatments for heifer calves were different levels of protein levels in supplements of 7.3, 16.7, 25.6, 34.6 and 43.2% crude protein on dry matter basis, and the control group receiving only mineral mix ad libitum. The supplements were fed daily at a rate of 0.5 kilogram per heifer. The cows received only mineral mix ad libitum. Supplemented heifers had higher average daily gain in the control group (P <0.10) and no difference was observed between the different supplemented groups. There were no differences (P> 0.10) in total dry matter intake and milk dry matter. The control group had a higher dry matter intake from pasture (P <0.10). The apparent digestibility of dry matter, lipids, carbohydrates, fiber, neutral detergent fiber corrected for ash and protein, and total digestible nutrients did not differ for any of the treatments (P> 0.10). Effects were observed (P <0.10) on the urinary excretion of urea nitrogen g / day. And a linear profile for increasing levels of crude protein supplementation was observed. There were no effect (P> 0.10) levels for supplementation on the flow of microbial nitrogen compounds in g / day. There was no effect (P> 0.10) in microbial efficiency expressed as g microbial crude protein /kg of total digestible nutrients consumed, and the flow of microbial nitrogen compounds in relation to nitrogen intake (g/g) of nitrogen intake showed negative linear profiles. Treatments did not affect daily microbial production (P> 0.10). The concentration of serum urea nitrogen was higher in animals that received some type of supplement on compared to non-supplemented animals (P <0.10). This fact can be attributed to higher crude protein intake. There weren´t any significant differences (P>0,10) between the last weight, average daily gains, body condition score and the milk production of the cows as soon as the treatments of the calves. It is concluded that multiple supplementation increments the average daily gains of nursing calves. There was no detectable effect of the supplement composition, in terms of protein concentration. The feeding of 0,5 kg/day of multiple supplements to nursing calves doesn´t influence the average daily gains of weight, body condition score and the production of milk from the cows. |
id |
UFV_4e3ca1d3ddcff961c6ce38322fe51ae5 |
---|---|
oai_identifier_str |
oai:locus.ufv.br:123456789/5773 |
network_acronym_str |
UFV |
network_name_str |
LOCUS Repositório Institucional da UFV |
repository_id_str |
2145 |
spelling |
Cardenas, Javier Enrique Garcéshttp://lattes.cnpq.br/2454500969245685Paulino, Mário Fonsecahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787752E3Rennó, Luciana Navajashttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4703874J9Marcondes, Marcos Ináciohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4731725A6Chizzotti, Mario Luizhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4702813P02015-03-26T13:55:17Z2013-09-062015-03-26T13:55:17Z2012-11-30CARDENAS, Javier Enrique Garcés. Supplementation of beef heifers infants with different levels of crude protein and nutritional characteristics and production of beef cows. 2012. 37 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2012.http://locus.ufv.br/handle/123456789/5773The objective of this investigation was based on an experiment related to animal production and nutritional evaluations of calves and their mothers which were kept on pasture. Calves were supplemented with creep-feeding techniques. The experiment was aimed to assess the efficacy of supplementation of heifers calves with different levels of crude protein and assess the nutritional characteristics and production of beef cows. 60 heifer calves were used; predominantly Nelore blood, aged between 126 ± 3,08 days, and an average initial weight of 123 ± 3,09 kg. Their mothers with initial weight and body condition score of 450 ± 6,97 kg and 3,7 ± 0,07, respectively. The experimental design was completely randomized with six treatments and ten repetitions. Treatments for heifer calves were different levels of protein levels in supplements of 7.3, 16.7, 25.6, 34.6 and 43.2% crude protein on dry matter basis, and the control group receiving only mineral mix ad libitum. The supplements were fed daily at a rate of 0.5 kilogram per heifer. The cows received only mineral mix ad libitum. Supplemented heifers had higher average daily gain in the control group (P <0.10) and no difference was observed between the different supplemented groups. There were no differences (P> 0.10) in total dry matter intake and milk dry matter. The control group had a higher dry matter intake from pasture (P <0.10). The apparent digestibility of dry matter, lipids, carbohydrates, fiber, neutral detergent fiber corrected for ash and protein, and total digestible nutrients did not differ for any of the treatments (P> 0.10). Effects were observed (P <0.10) on the urinary excretion of urea nitrogen g / day. And a linear profile for increasing levels of crude protein supplementation was observed. There were no effect (P> 0.10) levels for supplementation on the flow of microbial nitrogen compounds in g / day. There was no effect (P> 0.10) in microbial efficiency expressed as g microbial crude protein /kg of total digestible nutrients consumed, and the flow of microbial nitrogen compounds in relation to nitrogen intake (g/g) of nitrogen intake showed negative linear profiles. Treatments did not affect daily microbial production (P> 0.10). The concentration of serum urea nitrogen was higher in animals that received some type of supplement on compared to non-supplemented animals (P <0.10). This fact can be attributed to higher crude protein intake. There weren´t any significant differences (P>0,10) between the last weight, average daily gains, body condition score and the milk production of the cows as soon as the treatments of the calves. It is concluded that multiple supplementation increments the average daily gains of nursing calves. There was no detectable effect of the supplement composition, in terms of protein concentration. The feeding of 0,5 kg/day of multiple supplements to nursing calves doesn´t influence the average daily gains of weight, body condition score and the production of milk from the cows.A presente investigação foi elaborada com base em um experimento relacionado às avaliações produtivas e nutricionais de bezerras lactentes, suplementadas com a técnica de creep-feeding, e suas respectivas mães, mantidas a pasto. Objetivou-se avaliar a eficiência da suplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e as características nutricionais e produtivas de vacas de corte. Utilizaram-se 60 bezerras de corte com predominância de sangue Nelore, lactentes, com idade média de 126 ± 3,08 dias e peso médio inicial de 123 ± 3,09 kg, e suas respectivas mães, vacas de corte com predominância de sangue Nelore, com peso inicial e escore de condição corporal inicial médio de 450 ± 6,97 kg e 3,7 ± 0,07, respectivamente. O delineamento experimental foi inteiramente casualizado com seis tratamentos e dez repetições. Os tratamentos destinados às bezerras foram constituídos pelos níveis de proteína bruta nos suplementos de 7,3; 16,7; 25,6; 34,6 e 43,2% com base na matéria seca, e um tratamento controle recebendo apenas mistura mineral ad libitum. Os suplementos foram fornecidos diariamente, na quantidade de 0,5 quilograma por bezerra. As vacas receberam apenas mistura mineral ad libitum. As bezerras suplementadas apresentaram ganho médio diário superior as do grupo controle (P<0,10) e não houve diferença entre os grupos para os distintos níveis de proteína bruta. Não houve diferenças (P>0,10) no consumo de matéria seca total, matéria seca de leite. Os animais do grupo controle tiveram maior consumo de matéria seca de pasto (P<0,10). A digestibilidade aparente total da matéria seca, extrato etéreo, carboidratos não fibrosos, fibra insolúvel em detergente neutro corrigida para cinzas e proteína e nutrientes digestíveis totais não diferiu entre os tratamentos (P>0,10). Não houve efeito (P>0,10) dos níveis de suplementação sobre o fluxo de compostos nitrogenados microbianos em g/dia. Não houve efeito (P>0,10) na eficiência de síntese microbiana expressa como g proteína bruta microbiana/kg de nutrientes digestíveis totais consumidos, e o fluxo de compostos nitrogenados microbianos em relação ao nitrogênio ingerido (g/g) apresentou perfil linear negativo. Os tratamentos não influenciaram a produção microbiana diária (P>0,10). A concentração de nitrogênio uréico sérico foi maior nos animais que receberam algum tipo de suplemento em relação aos não suplementados (P<0,10); tal fato pode ser atribuído ao maior consumo de proteína bruta. Não houve diferenças significativas (P> 0,10) entre o peso final, ganho médio diário, escore de condição corporal e produção de leite das vacas quanto aos tratamentos das suas crias. Conclui-se que a suplementação múltipla incrementa o ganho médio diário de bezerras lactentes, não sendo detectado efeito da composição do suplemento, em termos de concentração de proteína, quando suplementadas com 0,5 kg/dia e que a estratégia de suplementação múltipla de bezerras de corte lactentes não influencia o ganho de peso, o escore de condição corporal e a produção de leite das vacas.application/pdfporUniversidade Federal de ViçosaMestrado em ZootecniaUFVBRGenética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e ForragiculBezerras de corteForragemSuplementaçãoBeef heifersForageSupplementationCNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMALSuplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e características nutricionais e produtivas de vacas de corteSupplementation of beef heifers infants with different levels of crude protein and nutritional characteristics and production of beef cowsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf1213197https://locus.ufv.br//bitstream/123456789/5773/1/texto%20completo.pdf02abf79adff3c795b9720166246f77f2MD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain61138https://locus.ufv.br//bitstream/123456789/5773/2/texto%20completo.pdf.txtf7c984f7a957caf0573f2f27a141e3dcMD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3580https://locus.ufv.br//bitstream/123456789/5773/3/texto%20completo.pdf.jpg42288a66874b5933debcbf8d05c364b0MD53123456789/57732016-04-10 23:20:47.995oai:locus.ufv.br:123456789/5773Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-11T02:20:47LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.por.fl_str_mv |
Suplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e características nutricionais e produtivas de vacas de corte |
dc.title.alternative.eng.fl_str_mv |
Supplementation of beef heifers infants with different levels of crude protein and nutritional characteristics and production of beef cows |
title |
Suplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e características nutricionais e produtivas de vacas de corte |
spellingShingle |
Suplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e características nutricionais e produtivas de vacas de corte Cardenas, Javier Enrique Garcés Bezerras de corte Forragem Suplementação Beef heifers Forage Supplementation CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL |
title_short |
Suplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e características nutricionais e produtivas de vacas de corte |
title_full |
Suplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e características nutricionais e produtivas de vacas de corte |
title_fullStr |
Suplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e características nutricionais e produtivas de vacas de corte |
title_full_unstemmed |
Suplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e características nutricionais e produtivas de vacas de corte |
title_sort |
Suplementação de bezerras de corte lactentes com diferentes níveis de proteína bruta e características nutricionais e produtivas de vacas de corte |
author |
Cardenas, Javier Enrique Garcés |
author_facet |
Cardenas, Javier Enrique Garcés |
author_role |
author |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/2454500969245685 |
dc.contributor.author.fl_str_mv |
Cardenas, Javier Enrique Garcés |
dc.contributor.advisor1.fl_str_mv |
Paulino, Mário Fonseca |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787752E3 |
dc.contributor.referee1.fl_str_mv |
Rennó, Luciana Navajas |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4703874J9 |
dc.contributor.referee2.fl_str_mv |
Marcondes, Marcos Inácio |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4731725A6 |
dc.contributor.referee3.fl_str_mv |
Chizzotti, Mario Luiz |
dc.contributor.referee3Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4702813P0 |
contributor_str_mv |
Paulino, Mário Fonseca Rennó, Luciana Navajas Marcondes, Marcos Inácio Chizzotti, Mario Luiz |
dc.subject.por.fl_str_mv |
Bezerras de corte Forragem Suplementação |
topic |
Bezerras de corte Forragem Suplementação Beef heifers Forage Supplementation CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL |
dc.subject.eng.fl_str_mv |
Beef heifers Forage Supplementation |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL |
description |
The objective of this investigation was based on an experiment related to animal production and nutritional evaluations of calves and their mothers which were kept on pasture. Calves were supplemented with creep-feeding techniques. The experiment was aimed to assess the efficacy of supplementation of heifers calves with different levels of crude protein and assess the nutritional characteristics and production of beef cows. 60 heifer calves were used; predominantly Nelore blood, aged between 126 ± 3,08 days, and an average initial weight of 123 ± 3,09 kg. Their mothers with initial weight and body condition score of 450 ± 6,97 kg and 3,7 ± 0,07, respectively. The experimental design was completely randomized with six treatments and ten repetitions. Treatments for heifer calves were different levels of protein levels in supplements of 7.3, 16.7, 25.6, 34.6 and 43.2% crude protein on dry matter basis, and the control group receiving only mineral mix ad libitum. The supplements were fed daily at a rate of 0.5 kilogram per heifer. The cows received only mineral mix ad libitum. Supplemented heifers had higher average daily gain in the control group (P <0.10) and no difference was observed between the different supplemented groups. There were no differences (P> 0.10) in total dry matter intake and milk dry matter. The control group had a higher dry matter intake from pasture (P <0.10). The apparent digestibility of dry matter, lipids, carbohydrates, fiber, neutral detergent fiber corrected for ash and protein, and total digestible nutrients did not differ for any of the treatments (P> 0.10). Effects were observed (P <0.10) on the urinary excretion of urea nitrogen g / day. And a linear profile for increasing levels of crude protein supplementation was observed. There were no effect (P> 0.10) levels for supplementation on the flow of microbial nitrogen compounds in g / day. There was no effect (P> 0.10) in microbial efficiency expressed as g microbial crude protein /kg of total digestible nutrients consumed, and the flow of microbial nitrogen compounds in relation to nitrogen intake (g/g) of nitrogen intake showed negative linear profiles. Treatments did not affect daily microbial production (P> 0.10). The concentration of serum urea nitrogen was higher in animals that received some type of supplement on compared to non-supplemented animals (P <0.10). This fact can be attributed to higher crude protein intake. There weren´t any significant differences (P>0,10) between the last weight, average daily gains, body condition score and the milk production of the cows as soon as the treatments of the calves. It is concluded that multiple supplementation increments the average daily gains of nursing calves. There was no detectable effect of the supplement composition, in terms of protein concentration. The feeding of 0,5 kg/day of multiple supplements to nursing calves doesn´t influence the average daily gains of weight, body condition score and the production of milk from the cows. |
publishDate |
2012 |
dc.date.issued.fl_str_mv |
2012-11-30 |
dc.date.available.fl_str_mv |
2013-09-06 2015-03-26T13:55:17Z |
dc.date.accessioned.fl_str_mv |
2015-03-26T13:55:17Z |
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 |
CARDENAS, Javier Enrique Garcés. Supplementation of beef heifers infants with different levels of crude protein and nutritional characteristics and production of beef cows. 2012. 37 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2012. |
dc.identifier.uri.fl_str_mv |
http://locus.ufv.br/handle/123456789/5773 |
identifier_str_mv |
CARDENAS, Javier Enrique Garcés. Supplementation of beef heifers infants with different levels of crude protein and nutritional characteristics and production of beef cows. 2012. 37 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2012. |
url |
http://locus.ufv.br/handle/123456789/5773 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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 de Viçosa |
dc.publisher.program.fl_str_mv |
Mestrado em Zootecnia |
dc.publisher.initials.fl_str_mv |
UFV |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul |
publisher.none.fl_str_mv |
Universidade Federal de Viçosa |
dc.source.none.fl_str_mv |
reponame:LOCUS Repositório Institucional da UFV instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
LOCUS Repositório Institucional da UFV |
collection |
LOCUS Repositório Institucional da UFV |
bitstream.url.fl_str_mv |
https://locus.ufv.br//bitstream/123456789/5773/1/texto%20completo.pdf https://locus.ufv.br//bitstream/123456789/5773/2/texto%20completo.pdf.txt https://locus.ufv.br//bitstream/123456789/5773/3/texto%20completo.pdf.jpg |
bitstream.checksum.fl_str_mv |
02abf79adff3c795b9720166246f77f2 f7c984f7a957caf0573f2f27a141e3dc 42288a66874b5933debcbf8d05c364b0 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
fabiojreis@ufv.br |
_version_ |
1801212926206410752 |