Dietary chitosan improves nitrogen use and feed conversion in diets for mid-lactation dairy cows
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.livsci.2017.04.003 http://hdl.handle.net/11449/169654 |
Resumo: | Feed additives and fat sources have been used to meet high productive dairy cow energy requirements. This study aimed to evaluate dietary chitosan and soybean oil effects on mid-lactation dairy cow intake, digestibility, metabolism and productive performance. Twenty-four Holstein cows (134.7±53.1 days in milk, 36.14±5.32 kg/day of milk yield, and 581.2±73.6 kg of body weight, Mean±SD) were used in a replicated 4×4 Latin square design with 21-d periods, with 14 d of adaptation and 7 d for data collection. The treatment arrangement was a 2×2 factorial design with two levels of chitosan (0 and 4 g/kg of dietary dry matter – DM) and two levels of soybean oil (0 and 33 g/kg of dietary DM). Chitosan decreased intake only in diets without oil (P<0.05). Regardless of fat addition, chitosan increased DM and CP digestibility (P<0.05). Soybean oil and chitosan increased total serum cholesterol (P<0.05). Chitosan diet had higher urea plasma concentration than control diet (CON) (P<0.05). Over all, soybean oil increased propionate and decreased acetate ruminal molar proportion, and therefore decreased acetate:propionate ratio (P<0.05). Chitosan decreased milk yield, nitrogen use and feed conversion efficiencies in oil-diets (P<0.05). Soybean oil decreased short and medium milk fatty acids concentration (P<0.05). Chitosan had no effect on long-chain milk fatty acids in diets with soybean oil (P>0.05). However, in free oil-diets, chitosan increased milk polyunsaturated fatty acids concentration, nitrogen and energy efficiency. Chitosan addition in free-fat diets improved feed efficiency, increased milk unsaturated fatty acids concentration and association with soybean oil negatively affect animal performance. |
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Dietary chitosan improves nitrogen use and feed conversion in diets for mid-lactation dairy cowsChitinDigestibilityFatty acidsMilk yieldRuminal fermentationFeed additives and fat sources have been used to meet high productive dairy cow energy requirements. This study aimed to evaluate dietary chitosan and soybean oil effects on mid-lactation dairy cow intake, digestibility, metabolism and productive performance. Twenty-four Holstein cows (134.7±53.1 days in milk, 36.14±5.32 kg/day of milk yield, and 581.2±73.6 kg of body weight, Mean±SD) were used in a replicated 4×4 Latin square design with 21-d periods, with 14 d of adaptation and 7 d for data collection. The treatment arrangement was a 2×2 factorial design with two levels of chitosan (0 and 4 g/kg of dietary dry matter – DM) and two levels of soybean oil (0 and 33 g/kg of dietary DM). Chitosan decreased intake only in diets without oil (P<0.05). Regardless of fat addition, chitosan increased DM and CP digestibility (P<0.05). Soybean oil and chitosan increased total serum cholesterol (P<0.05). Chitosan diet had higher urea plasma concentration than control diet (CON) (P<0.05). Over all, soybean oil increased propionate and decreased acetate ruminal molar proportion, and therefore decreased acetate:propionate ratio (P<0.05). Chitosan decreased milk yield, nitrogen use and feed conversion efficiencies in oil-diets (P<0.05). Soybean oil decreased short and medium milk fatty acids concentration (P<0.05). Chitosan had no effect on long-chain milk fatty acids in diets with soybean oil (P>0.05). However, in free oil-diets, chitosan increased milk polyunsaturated fatty acids concentration, nitrogen and energy efficiency. Chitosan addition in free-fat diets improved feed efficiency, increased milk unsaturated fatty acids concentration and association with soybean oil negatively affect animal performance.Department of Animal Nutrition and Production University of Sao PauloDepartment of Animal Science UNESP - Universidade Estadual Paulista “Júlio de Mesquita Filho”Department of Animal Science University of Sao PauloDepartment of Animal Science UNESP - Universidade Estadual Paulista “Júlio de Mesquita Filho”Universidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Del Valle, Tiago A.Paiva, Pablo G. de [UNESP]Ferreira de Jesus, Elmeson [UNESP]Almeida, Gustavo F. deZanferari, FilipeCosta, Artur G.B.V.B.Bueno, Ives C.S.Rennó, Francisco P.2018-12-11T16:47:02Z2018-12-11T16:47:02Z2017-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article22-29application/pdfhttp://dx.doi.org/10.1016/j.livsci.2017.04.003Livestock Science, v. 201, p. 22-29.1871-1413http://hdl.handle.net/11449/16965410.1016/j.livsci.2017.04.0032-s2.0-850183776772-s2.0-85018377677.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLivestock Science0,730info:eu-repo/semantics/openAccess2023-10-03T06:04:27Zoai:repositorio.unesp.br:11449/169654Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:53:21.062718Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Dietary chitosan improves nitrogen use and feed conversion in diets for mid-lactation dairy cows |
title |
Dietary chitosan improves nitrogen use and feed conversion in diets for mid-lactation dairy cows |
spellingShingle |
Dietary chitosan improves nitrogen use and feed conversion in diets for mid-lactation dairy cows Del Valle, Tiago A. Chitin Digestibility Fatty acids Milk yield Ruminal fermentation |
title_short |
Dietary chitosan improves nitrogen use and feed conversion in diets for mid-lactation dairy cows |
title_full |
Dietary chitosan improves nitrogen use and feed conversion in diets for mid-lactation dairy cows |
title_fullStr |
Dietary chitosan improves nitrogen use and feed conversion in diets for mid-lactation dairy cows |
title_full_unstemmed |
Dietary chitosan improves nitrogen use and feed conversion in diets for mid-lactation dairy cows |
title_sort |
Dietary chitosan improves nitrogen use and feed conversion in diets for mid-lactation dairy cows |
author |
Del Valle, Tiago A. |
author_facet |
Del Valle, Tiago A. Paiva, Pablo G. de [UNESP] Ferreira de Jesus, Elmeson [UNESP] Almeida, Gustavo F. de Zanferari, Filipe Costa, Artur G.B.V.B. Bueno, Ives C.S. Rennó, Francisco P. |
author_role |
author |
author2 |
Paiva, Pablo G. de [UNESP] Ferreira de Jesus, Elmeson [UNESP] Almeida, Gustavo F. de Zanferari, Filipe Costa, Artur G.B.V.B. Bueno, Ives C.S. Rennó, Francisco P. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Del Valle, Tiago A. Paiva, Pablo G. de [UNESP] Ferreira de Jesus, Elmeson [UNESP] Almeida, Gustavo F. de Zanferari, Filipe Costa, Artur G.B.V.B. Bueno, Ives C.S. Rennó, Francisco P. |
dc.subject.por.fl_str_mv |
Chitin Digestibility Fatty acids Milk yield Ruminal fermentation |
topic |
Chitin Digestibility Fatty acids Milk yield Ruminal fermentation |
description |
Feed additives and fat sources have been used to meet high productive dairy cow energy requirements. This study aimed to evaluate dietary chitosan and soybean oil effects on mid-lactation dairy cow intake, digestibility, metabolism and productive performance. Twenty-four Holstein cows (134.7±53.1 days in milk, 36.14±5.32 kg/day of milk yield, and 581.2±73.6 kg of body weight, Mean±SD) were used in a replicated 4×4 Latin square design with 21-d periods, with 14 d of adaptation and 7 d for data collection. The treatment arrangement was a 2×2 factorial design with two levels of chitosan (0 and 4 g/kg of dietary dry matter – DM) and two levels of soybean oil (0 and 33 g/kg of dietary DM). Chitosan decreased intake only in diets without oil (P<0.05). Regardless of fat addition, chitosan increased DM and CP digestibility (P<0.05). Soybean oil and chitosan increased total serum cholesterol (P<0.05). Chitosan diet had higher urea plasma concentration than control diet (CON) (P<0.05). Over all, soybean oil increased propionate and decreased acetate ruminal molar proportion, and therefore decreased acetate:propionate ratio (P<0.05). Chitosan decreased milk yield, nitrogen use and feed conversion efficiencies in oil-diets (P<0.05). Soybean oil decreased short and medium milk fatty acids concentration (P<0.05). Chitosan had no effect on long-chain milk fatty acids in diets with soybean oil (P>0.05). However, in free oil-diets, chitosan increased milk polyunsaturated fatty acids concentration, nitrogen and energy efficiency. Chitosan addition in free-fat diets improved feed efficiency, increased milk unsaturated fatty acids concentration and association with soybean oil negatively affect animal performance. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-07-01 2018-12-11T16:47:02Z 2018-12-11T16:47:02Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.livsci.2017.04.003 Livestock Science, v. 201, p. 22-29. 1871-1413 http://hdl.handle.net/11449/169654 10.1016/j.livsci.2017.04.003 2-s2.0-85018377677 2-s2.0-85018377677.pdf |
url |
http://dx.doi.org/10.1016/j.livsci.2017.04.003 http://hdl.handle.net/11449/169654 |
identifier_str_mv |
Livestock Science, v. 201, p. 22-29. 1871-1413 10.1016/j.livsci.2017.04.003 2-s2.0-85018377677 2-s2.0-85018377677.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Livestock Science 0,730 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
22-29 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128288027049984 |