Effect of the inclusion of lysine and methionine on the nutritional performance and ingestive behavior of lambs
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/33777 |
Resumo: | Lysine and methionine are the most limiting amino acids for ruminants; their inclusion in the free form is not effective, since they are quickly degraded by ruminal microorganisms, making the fulfillment of the requirements of metabolizable protein difficult. The objective of this study was to evaluate the effects of including different levels of lysine and methionine, protected from ruminal degradation, in the diet of lambs; more specifically, their effects on intake, digestibility, nitrogen balance and ingestive behavior. The experiment was conducted at the Experimental Farm Capim Branco, Federal University of Uberlândia, from September to October 2016. Five 1/2Dorper x 1/2Santa Inês lambs, at approximately eight months of age and an average weight of 50 kg, were distributed in a 5x5 Latin square design, with five treatments and five replicates. The treatments consisted of different levels (0 g, 8 g, 16 g, 24 g and 32 g) of lysine and methionine added to the diet, protected from ruminal degradation (MicroPEARLS LM ®). The feed was composed of corn silage and concentrate (30V: 70C), offered twice daily at 08h00 and 16h00. The experiment lasted 75 days and was divided into five phases. Each phase lasted 15 days, with 10 days for adaptation of the animals and five days of data collection. The animals were kept in individual metabolic cages, with a feeder, drinker and salt shaker. A digestibility assay was performed to determine the consumption and apparent digestibility coefficients of dry matter (DM), crude protein (CP), neutral detergent fiber and acid (NDF/NDA). Urine volume and density, stool weight and fecal score, nitrogen balance and ingestive behavior were recorded. In relation to metabolic and body weight, DM intake (kg day-1) presented a positive linear response with the inclusion of amino acids, as well as the CP intake, NDF intake, ingested nitrogen and nitrogen balance, which were positive in all treatments. There was no difference (P < 0.05) in the digestibility coefficients of DM, CP and NDF. Water consumption was high in all treatments, but did not differ by treatment (P > 0.05). Ingestive behavior was not influenced (P > 0.05). The inclusion of up to 32 g of protected lysine and methionine increases DM and nutrient intake, without negatively affecting digestibility. The high CP intake induced an increase in the urinary nitrogen excretion, and consequently, an increase in the energy expenditure. |
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Effect of the inclusion of lysine and methionine on the nutritional performance and ingestive behavior of lambsEfeito da inclusão de lisina e metionina protegidas sobre o desempenho nutricional e comportamento ingestivo de borregasAmino acidsDigestibilityNitrogenOvis ariesProtein.AminoácidosDigestibilidadeNitrogênioOvis AriesProteína.Lysine and methionine are the most limiting amino acids for ruminants; their inclusion in the free form is not effective, since they are quickly degraded by ruminal microorganisms, making the fulfillment of the requirements of metabolizable protein difficult. The objective of this study was to evaluate the effects of including different levels of lysine and methionine, protected from ruminal degradation, in the diet of lambs; more specifically, their effects on intake, digestibility, nitrogen balance and ingestive behavior. The experiment was conducted at the Experimental Farm Capim Branco, Federal University of Uberlândia, from September to October 2016. Five 1/2Dorper x 1/2Santa Inês lambs, at approximately eight months of age and an average weight of 50 kg, were distributed in a 5x5 Latin square design, with five treatments and five replicates. The treatments consisted of different levels (0 g, 8 g, 16 g, 24 g and 32 g) of lysine and methionine added to the diet, protected from ruminal degradation (MicroPEARLS LM ®). The feed was composed of corn silage and concentrate (30V: 70C), offered twice daily at 08h00 and 16h00. The experiment lasted 75 days and was divided into five phases. Each phase lasted 15 days, with 10 days for adaptation of the animals and five days of data collection. The animals were kept in individual metabolic cages, with a feeder, drinker and salt shaker. A digestibility assay was performed to determine the consumption and apparent digestibility coefficients of dry matter (DM), crude protein (CP), neutral detergent fiber and acid (NDF/NDA). Urine volume and density, stool weight and fecal score, nitrogen balance and ingestive behavior were recorded. In relation to metabolic and body weight, DM intake (kg day-1) presented a positive linear response with the inclusion of amino acids, as well as the CP intake, NDF intake, ingested nitrogen and nitrogen balance, which were positive in all treatments. There was no difference (P < 0.05) in the digestibility coefficients of DM, CP and NDF. Water consumption was high in all treatments, but did not differ by treatment (P > 0.05). Ingestive behavior was not influenced (P > 0.05). The inclusion of up to 32 g of protected lysine and methionine increases DM and nutrient intake, without negatively affecting digestibility. The high CP intake induced an increase in the urinary nitrogen excretion, and consequently, an increase in the energy expenditure.Lisina e metionina são os aminoácidos mais limitantes para ruminantes. This is in the population is a effective, wireless in microrganisms ruminais as degradam rapid, dificulting of the proteins of protein metabolizable. Objetivou-se a incluir as teorias de lisina e metionina protegidas sobre a degradação ruminal na taxa de juro, sobre o consumo, a digestibilidade, o balanço de nitrogênio e o comportamento ingestivo. O experimento foi realizado na Fazenda Experimental Capim Branco, da Universidade Federal de Uberlândia, no período de setembro a outubro de 2016. Foram publicados 5 anos 1 / 2Dper x 1 / 2Santa Inês, com idades médias de 50 kg Distribuído em esquema quadrado latino 5x5, sendo cinco tratamentos e cinco repetições. Os tratamentos consistiram na inclusão de diferentes teores de lisina e metionina protegida na degradação ruminal (MicroPEARLS LM®) na ração, sendo: 0g, 8g, 16g, 24g e 32g. A medida foi feita pela silagem do milho e concentrada, na 30V: 70C, sendo ofertadas duas vezes ao dia (8 e 16 horas). O experimento teve duração de 75 dias, sendo divido em cinco fases. A fase teve a duração de quinze dias, sendo dez dias de adaptação dos animais e cinco dias de coleta de dados. Os animais foram descendentes em gaivotas metabólicas individuais, dispostas de comedouro, bebedouros e saleiro. Processos de digestibilidade para a determinação do consumo e dos coeficientes de digestibilidade da matéria seca (MS), proteína bruta (PB), fibra em detergente neutro e ácido (FDN / FDA). Foram conquistados o volume e a densidade de urina, peso das fezes e escore fecal, balanço de nitrogênio e estudo do comportamento ingestivo. Os consumos de MS (kg dia-1), em relação ao peso metabólico e corporal, e as equações lineares positivas à inclusão dos aminoácidos, assim como os consumos de PB, FDN, nitrogênio ingerido e balanço de nitrogênio, que foram positivos em todos os tratamentos. Não houve diferença (P <0,05) para os coeficientes de digestibilidade da MS, PB e FDN. O consumo de água foi elevado em todos os tratamentos e não diferiram entre si (P> 0,05). O comportamento ingestivo não foi influenciado (P> 0,05). nitrogênio ingerido e balanço de nitrogênio, que foram positivos em todos os tratamentos. Não houve diferença (P <0,05) para os coeficientes de digestibilidade da MS, PB e FDN. O consumo de água foi elevado em todos os tratamentos e não diferiram entre si (P> 0,05). O comportamento ingestivo não foi influenciado (P> 0,05). nitrogênio ingerido e balanço de nitrogênio, que foram positivos em todos os tratamentos. Não houve diferença (P <0,05) para os coeficientes de digestibilidade da MS, PB e FDN. O consumo de água foi elevado em todos os tratamentos e não diferiram entre si (P> 0,05). O comportamento ingestivo não foi influenciado (P> 0,05).UEL2019-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Empírica de Campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3377710.5433/1679-0359.2019v40n2p957Semina: Ciências Agrárias; Vol. 40 No. 2 (2019); 957-970Semina: Ciências Agrárias; v. 40 n. 2 (2019); 957-9701679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/33777/25278Copyright (c) 2019 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessAraújo, Carolina MoreiraMacedo Junior, Gilberto de LimaOliveira, Karla AlvesVaranis, Laura Ferrari MonteiroAssis, Tamires Soares deSiqueira, Marco Tulio Santos2022-10-19T14:44:23Zoai:ojs.pkp.sfu.ca:article/33777Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-19T14:44:23Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Effect of the inclusion of lysine and methionine on the nutritional performance and ingestive behavior of lambs Efeito da inclusão de lisina e metionina protegidas sobre o desempenho nutricional e comportamento ingestivo de borregas |
title |
Effect of the inclusion of lysine and methionine on the nutritional performance and ingestive behavior of lambs |
spellingShingle |
Effect of the inclusion of lysine and methionine on the nutritional performance and ingestive behavior of lambs Araújo, Carolina Moreira Amino acids Digestibility Nitrogen Ovis aries Protein. Aminoácidos Digestibilidade Nitrogênio Ovis Aries Proteína. |
title_short |
Effect of the inclusion of lysine and methionine on the nutritional performance and ingestive behavior of lambs |
title_full |
Effect of the inclusion of lysine and methionine on the nutritional performance and ingestive behavior of lambs |
title_fullStr |
Effect of the inclusion of lysine and methionine on the nutritional performance and ingestive behavior of lambs |
title_full_unstemmed |
Effect of the inclusion of lysine and methionine on the nutritional performance and ingestive behavior of lambs |
title_sort |
Effect of the inclusion of lysine and methionine on the nutritional performance and ingestive behavior of lambs |
author |
Araújo, Carolina Moreira |
author_facet |
Araújo, Carolina Moreira Macedo Junior, Gilberto de Lima Oliveira, Karla Alves Varanis, Laura Ferrari Monteiro Assis, Tamires Soares de Siqueira, Marco Tulio Santos |
author_role |
author |
author2 |
Macedo Junior, Gilberto de Lima Oliveira, Karla Alves Varanis, Laura Ferrari Monteiro Assis, Tamires Soares de Siqueira, Marco Tulio Santos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Araújo, Carolina Moreira Macedo Junior, Gilberto de Lima Oliveira, Karla Alves Varanis, Laura Ferrari Monteiro Assis, Tamires Soares de Siqueira, Marco Tulio Santos |
dc.subject.por.fl_str_mv |
Amino acids Digestibility Nitrogen Ovis aries Protein. Aminoácidos Digestibilidade Nitrogênio Ovis Aries Proteína. |
topic |
Amino acids Digestibility Nitrogen Ovis aries Protein. Aminoácidos Digestibilidade Nitrogênio Ovis Aries Proteína. |
description |
Lysine and methionine are the most limiting amino acids for ruminants; their inclusion in the free form is not effective, since they are quickly degraded by ruminal microorganisms, making the fulfillment of the requirements of metabolizable protein difficult. The objective of this study was to evaluate the effects of including different levels of lysine and methionine, protected from ruminal degradation, in the diet of lambs; more specifically, their effects on intake, digestibility, nitrogen balance and ingestive behavior. The experiment was conducted at the Experimental Farm Capim Branco, Federal University of Uberlândia, from September to October 2016. Five 1/2Dorper x 1/2Santa Inês lambs, at approximately eight months of age and an average weight of 50 kg, were distributed in a 5x5 Latin square design, with five treatments and five replicates. The treatments consisted of different levels (0 g, 8 g, 16 g, 24 g and 32 g) of lysine and methionine added to the diet, protected from ruminal degradation (MicroPEARLS LM ®). The feed was composed of corn silage and concentrate (30V: 70C), offered twice daily at 08h00 and 16h00. The experiment lasted 75 days and was divided into five phases. Each phase lasted 15 days, with 10 days for adaptation of the animals and five days of data collection. The animals were kept in individual metabolic cages, with a feeder, drinker and salt shaker. A digestibility assay was performed to determine the consumption and apparent digestibility coefficients of dry matter (DM), crude protein (CP), neutral detergent fiber and acid (NDF/NDA). Urine volume and density, stool weight and fecal score, nitrogen balance and ingestive behavior were recorded. In relation to metabolic and body weight, DM intake (kg day-1) presented a positive linear response with the inclusion of amino acids, as well as the CP intake, NDF intake, ingested nitrogen and nitrogen balance, which were positive in all treatments. There was no difference (P < 0.05) in the digestibility coefficients of DM, CP and NDF. Water consumption was high in all treatments, but did not differ by treatment (P > 0.05). Ingestive behavior was not influenced (P > 0.05). The inclusion of up to 32 g of protected lysine and methionine increases DM and nutrient intake, without negatively affecting digestibility. The high CP intake induced an increase in the urinary nitrogen excretion, and consequently, an increase in the energy expenditure. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-15 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa Empírica de Campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/33777 10.5433/1679-0359.2019v40n2p957 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/33777 |
identifier_str_mv |
10.5433/1679-0359.2019v40n2p957 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/33777/25278 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 40 No. 2 (2019); 957-970 Semina: Ciências Agrárias; v. 40 n. 2 (2019); 957-970 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306080287719424 |