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Analysis of NH3-N Slow Release systems for fiber digestibility of low-quality forage: in vitro approach Scientia Agricola
Cruz,Camila Conceição Tomé da; Pereira,Elaine Inácio; Sato,Patrícia Suemi; Guimarães,Gelton Geraldo Fernandes; Souza,Gilberto Batista de; Bernardi,Alberto Carlos de Campos; Ribeiro,Caue.
ABSTRACT: Urea is a common non-protein supplement used in ruminant feed; however, excessive consumption may lead to poisoning by NH3. Although the slow release of urea into the rumen has shown to be an essential aspect for ruminant feed, to date only a few studies have addressed this matter. In this study we examined the influence of five different NH3-N slow release systems based on clay-urea nanocomposites on the fiber digestibility of low-quality forage (sugarcane straw) in vitro. Physical properties of nanocomposites were evaluated and their effects on digestibility were tested in vitro using pristine urea as a positive control (level of 1 % of DM of sugarcane straw sample) and sugarcane (with no additives) as a negative control. Ammonia release and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Slow-release urea; Ruminants feed; Non-protein nitrogen.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000500401
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Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea Animal Sciences
Alves, Evanilton Moura; Instituto Federal Baiano; Pedreira, Márcio dos Santos; Universidade Estadual do Sudoeste da Bahia; Moreira, Beatriz Silva; Universidade Estadual do Sudoeste da Bahia; Freire, Leile Daiane Ribeiro; Universidade Estadual do Sudoeste da Bahia; Lima, Thiago Ramos; Universidade Estadual do Sudoeste da Bahia; Santos-Cruz, Cristiane Leal dos; Universidade Estadual do Sudoeste da Bahia.
This study aimed to evaluate the effects of adding slow-release urea to replace conventional urea in the diet on carcass characteristics of feedlot sheep. We used 20 Santa Ines x SRD rams, with average body weight of 21.1±1.2 kgand average age of 120 days, distributed in a completely randomized design with 5 treatments. The replacement levels used as treatments were 0, 20, 40, 60, and 80%, composing diets of about 12% crude protein, with 50 % Tifton-85 hay and 50% concentrate. There was no influence of slow release urea on weight at slaughter (35.17 kg), and on hot (16.75 kg) and cold (16.24 kg) carcass weight, but the yield of these carcasses showed quadratic trend, revealing lower percentages at 48.5 and 47.63% replacement levels, respectively. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ciências Agrárias; Produção Animal meat cuts; Non-protein nitrogen; Nutrition; Small ruminants; Yield.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21379
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Desempenho de búfalos em pastagem de quicuio-da-amazônia (Brachiaria humidicola) com misturas minerais contendo uréia. Infoteca-e
NASCIMENTO, C. N. B. do; CARVALHO, L. O. D. de M.; SIMÃO NETO, M.; DUTRA, S.; BELTRÃO JUNIOR, N. da S..
1993
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Bubalino; Nutrição mineral; Suplementação; Pastejo; Capim quicuio da amazônia; Nitrogênio não proteico; Brachiaria humidicola; Buffalo; Nutrition; Suplementation; Granzing; Ureia; Non-protein nitrogen.
Ano: 1993 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/378461
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Effects of polymer coated slow-release urea on ruminal fermentation and nutrient total tract digestion of beef steers R. Bras. Zootec.
Gardinal,Rodrigo; Gandra,Jefferson Rodrigues; Calomeni,Gustavo Delfino; Vendramini,Thiago Henrique Annibale; Takiya,Caio Seiti; Freitas Júnior,José Esler de; Souza,Heraldo Namorato de; Rennó,Francisco Palma.
ABSTRACT The objective of this study was to evaluate the effects of polymer coated slow-release urea (SRU) in high-forage diets of beef steers on nutrient intake and digestibility, ruminal fermentation, microbial protein synthesis, and energy balance. Eight 24-mo-old rumen-fistulated castrated Nellore steers (average body weight = 418.0±40.0 kg) were used in a replicated 4 × 4 Latin square design. Animals were randomly distributed to receive one of the following diets: no urea inclusion; 1.0% inclusion of feed grade urea in the diet (dry matter [DM] basis); 1.0% inclusion of slow-release urea 1 in the diet (DM basis); and 1.0% inclusion of slow-release urea 2 in the diet (DM basis). Slow-release urea 2 had a similar composition to that of slow-release urea...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ammonia; Digestibility; Microbial protein; Nellore; Non-protein nitrogen; Soybean.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000200063
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Effects of polymer-coated slow-release urea on performance, ruminal fermentation, and blood metabolites in dairy cows R. Bras. Zootec.
Calomeni,Gustavo Delfino; Gardinal,Rodrigo; Venturelli,Beatriz Conte; Freitas Júnior,José Esler de; Vendramini,Thiago Henrique Annibale; Takiya,Caio Seiti; Souza,Heraldo Namorato de; Rennó,Francisco Palma.
ABSTRACTThe objective of this experiment was to quantify the effects of feeding polymer-coated slow-release urea on nutrient intake and total tract digestion, milk yield and composition, nutrient balances, ruminal fermentation, microbial protein synthesis, and blood parameters in dairy cows. Sixteen Holstein cows (580±20 kg of live weight (mean ± standard deviation); 90 to 180 days in milk (DIM); and 28 kg/d of average milk yield) were used in a replicated 4 × 4 Latin square experimental design. The animals were assigned to each square according to milk yield and DIM. The animals were randomly allocated to receive one of the following experimental diets: 1) control (without urea addition); urea (addition of 1% on the diet DM basis); polymer-coated slow...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nitrogen balance; Nitrogen efficiency; Non-protein nitrogen.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000900327
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Milled legume grain as urease source for the ammonization of elephant grass hay PAB
Morais,Leonardo Fiusa de; Almeida,João Carlos de Carvalho; Nepomuceno,Delci de Deus; Morenz,Mirton José Frota; Melo,Bárbara Maria Gomes de; Freitas,Rafaela Scalise Xavier de.
Abstract: The objective of this work was to evaluate the use of soybean (Glycine max), pigeon pea (Cajanus cajan), and jack bean (Canavalia ensiformis) as urease sources for elephant grass (Pennisetum purpureum) hay ammoniated with urea. The experimental design was completely randomized in a double factorial arrangement with one additional treatment: 4 urease source levels x 3 urease sources + 1 control. Chemical-bromatological analyses and carbohydrate fractionation were performed in the hay, and cumulative gas production in vitro was determined. There were interactions between urease level and source for neutral detergent fiber and acid detergent fiber, in which 1 and 2% jack bean lowered acid detergent fiber values, and 2% jack bean and 3% soybean...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cajanus cajan; Canavalia ensiformis; Pennisetum purpureum; Non-protein nitrogen; Roughage.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001201268
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Nitrogen metabolism and microbial synthesis in sheep fed diets containing slow release urea to replace the conventional ure Animal Sciences
Alves, Evanilton Moura; Instituto Federal Baiano; Magalhães, Daniel Rodrigues; Instituo Federal Baiano; Freitas, Mazzilli Amaral; Universidade Estadual do Sudoeste da Bahia; Santos, Edileusa de Jesus dos; Universidade Estadual do Sudoeste da Bahia; Pereira, Mara Lúcia Albuquerque; Universidade Estadual do Sudoeste da Bahia; Pedreira, Márcio dos Santos; Universidade Estadual do Sudoeste da Bahia.
This study aimed to evaluate the effects of adding slow release urea to replace conventional urea in diets for feedlot sheep on nitrogen metabolism and microbial protein synthesis. The substitution levels used as treatments were 0, 20, 40, 60 and 80%. We used 25 Santa Ines x SRD sheep distributed in the treatments in a completely randomized design. The animals were given 50% Tifton-85 hay and 50% concentrate, comprising diets with approximately 12% crude protein. The ingestion, digestion and excretion of nitrogen were not affected by the addition of slow release urea to the diet, in which the digested nitrogen accounted for 72.98% of the ingested. The concentration of plasma urea-N showed a quadratic variation, with the maximum at the level of 72.18%...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zootecnia; Nutrição animal; Avaliação de alimentos nitrogen balance; Microbial efficiency; Non-protein nitrogen.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21377
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Nitrogen sources associated with different physical forms of corn grain in the diet for steers in feedlot Animal Sciences
Porsch, Renata Volpatto; Machado, Diego Soares; Brondani, Ivan Luiz; Cocco, Joziane Michelon; Alves Filho, Dari Celestino; Oliveira, Leonardo Mendes de.
This study evaluated the substitution of soybean meal with non-protein nitrogen sources, in combination with ground or whole corn for feedlot cattle. Fifty-four Charolais x Nellore steers with 22 ± 0.23 months and 250 ± 15.80 kg were assigned to a 3 x 2 factorial completely randomized experimental design. The treatments consisted of different combinations of concentrate formulation: soybean meal with whole or ground corn, conventional urea with whole or ground corn, and protected urea with whole or ground corn. There was interaction between nitrogen source and collection date for serum albumin, with increasing elevation for soybean meal; while there was elevation from day 0 to day 84, stabilizing until the slaughter, for urea. Higher intakes of dry matter...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Albumin; Ingestive behavior; Non-protein nitrogen; Performance..
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/42541
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Performance, digestibility and carcass characteristics of feedlot dairy steers fed diets with different urea levels Arq. Bras. Med. Vet. Zootec.
Magalhães,K.A.; Valadares Filho,S.C.; Paulino,P.V.R.; Paulino,M.F.; Valadares,R.F.D..
The effects of urea levels on feed intake, digestibility and carcass traits of 27 confined cross bred steers weighing 303.25 ± 60.8kg, were evaluated. After weighing, castrating, vaccinating and a period of seven days, three steers were slaughtered at the beginning of the experiment and the remaining 24 were allotted in a completely randomized design to four isonitogenous experimental diets (12% of crude protein) and increasing level of urea on the dry matter-basis (0.0; 0.65; 1.30 and 1.65%) to replace soybean meal, so that the final content of the experimental diets were approximately 22, 37, 50 and 63% of crude protein in the form of NPN. Corn and elephant grass silages were supplied at a 70:30 ratio and the total diet had a 65:35, forage: concentrate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Feedlot; Carcass; Intake; Digestibility; Non-protein nitrogen.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000500023
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Performance of lactating crossbred cows on pasture supplemented with conventional urea or slow release urea Arq. Bras. Med. Vet. Zootec.
Abreu,D.C.; Lana,R.P.; Oliveira,A.S.; Barbosa,F.A.; Andrade,F.L.; Silva,P.T.; Fonseca,M.A.; Ghedini,C.P.; Paula,R.M.; Magalhães,F.A..
The effect of using conventional urea (CU) or slow release urea (SRU) was evaluated by replacing soybean meal (SBM) in concentrated supplements in levels of 2, 4 or 6% (dry matter basis) on productive performance of crossbred Holstein x Zebu lactating dairy cows (499±61kg body weight and 167 days of lactation) grazing on elephant grass (11.5% CP and 60% NDF) under rotational grazing during the rainy season. A supplement control (no urea) was used containing SBM as a protein source. A total of 21 cows were distributed an incomplete randomized block design with three periods of 21 days each (14 days of adaptation and seven days of collection). The animals entered the paddocks with a pasture height of 110-120cm and left when the grass reached the height of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Non-protein nitrogen; Milk.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000501487
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Productive performance and composition of milk protein fraction in dairy cows supplemented with fat sources R. Bras. Zootec.
Freitas Júnior,José Esler de; Rennó,Francisco Palma; Santos,Marcos Veiga dos; Gandra,Jefferson Rodrigues; Maturana Filho,Milton; Venturelli,Beatriz Conte.
The objective of this study was to evaluate the use of fat sources in rations for lactating cows on the productive performance and composition of milk protein fraction. Twelve Holstein cows were used, grouped in three balanced 4 × 4 Latin squares, fed with the following rations: control; refined soybean oil; whole raw soybean; and calcium salts of unsaturated fatty acid (Megalac-E). Dry matter and nutrient intake, and daily milk production were evaluated. The samples used to analyze milk composition were collected in two alternate days and were obtained from two daily milking. Milk composition and total nitrogen, non-protein nitrogen and non-casein nitrogen ratios were analyzed. The casein, serum protein and true protein ratios were obtained by difference....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fat supplementation; Intake; Milk production and composition; Non-protein nitrogen; True protein.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000400021
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Slow-release Urea in Supplement Fed to Beef Steers. Repositório Alice
GONÇALVES, A. P.; GOMES, R. da C..
2015
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Controlled release; Feed intake; Non-protein nitrogen; Short chain fatty acids.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1030945
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Slow-release urea in supplement fed to beef steers BABT
Gonçalves,Ana Paula; Nascimento,Carolina Fernanda Moysés do; Ferreira,Fernanda Altieri; Gomes,Rodrigo da Costa; Manella,Marcelo de Queiroz; Marino,Carolina Tobias; Demarchi,João José Assumpção de Abreu; Rodrigues,Paulo Henrique Mazza.
Replacing regular urea (RU) by slow-release urea (SRU) at two levels of non-protein nitrogen (NPN) in concentrate, offered with low-quality roughage, was evaluated in beef steers on dry matter intake (DMI), ruminal fermentation parameters, plasma urea nitrogen (PUN), total tract apparent digestibility of diets and in situ degradability of nitrogen sources. Eight ruminally cannulated steers were allocated into two 4x4 Latin squares, totalizing four treatments: 40 NPN/0 SRU: 40% of concentrate crude protein (CP) as NPN, resulting from 0% of SRU and 100% of RU; 40 NPN/50 SRU: 40% of concentrate CP as NPN, resulting from 50% of SRU and 50% of RU; 40 NPN/100 SRU: 40% of concentrate CP as NPN, resulting from 100% of SRU and 0% of RU; 80 NPN/100 SRU: 80% of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Controlled release; Feed intake; Non-protein nitrogen; Short chain fatty acids.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000100022
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Substituição de uréia por cloreto de amônio em dietas de bovinos: digestibilidade, síntese de proteína microbiana, parâmetros ruminais e sanguíneos - DOI: 10.4025/actascianimsci.v31i3.5938 Animal Sciences
Castañeda, Roman David; UEM; Branco, Antonio Ferriani; UEM; Coneglian, Sabrina Marcantonio; UEM; Barreto, Julio Cesar; UEM; Granzotto, Fernanda; UEM; Teixeira, Silvana; UEM.
Foram utilizados cinco bovinos machos, castrados, da raça Holandesa Preta e Branca, com 450 kg de peso vivo em um delineamento quadrado latino 5 x 5, sendo os tratamentos cinco níveis de substituição, 0, 25, 50, 75 e 100% de ureia por cloreto de amônio, como fontes de nitrogênio não-proteico da dieta. Houve redução linear (p < 0,05) na ingestão e no fluxo fecal, além de aumento na digestibilidade da MS, MO, PB, FDN e EE com a inclusão do cloreto de amônio na dieta. A inclusão de cloreto de amônio na dieta influenciou de forma quadrática (p < 0,05) o pH da urina, aumentou (p < 0,05) o volume urinário assim como a excreção de ácido úrico. Os tratamentos não influenciaram (p > 0,05) a excreção de alantoína e de derivados de purinas na urina,...
Palavras-chave: 5.04.03.00-1 derivativos de purina; Fermentação ruminal; Ingestão; Nitrogênio não-proteico; Ruminantes; Sais aniônicos anionic salts; Intake; Non-protein nitrogen; Purine derivatives; Ruminal fermentation; Ruminants.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/5938
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Substitution of soybean meal for urea in diets based on deferred buffelgrass hay for feedlot sheep R. Bras. Zootec.
Pereira,Gildenia Araújo; Oliveira,Juliana Silva de; Santos,Edson Mauro; Carvalho,Gleidson Giordano Pinto de; Araújo,Gherman Garcia Leal de; Sousa,Wandrick Hauss de; Homem Neto,Sansão de Paula; Cartaxo,Felipe Queiroga.
ABSTRACT The objective of this study was to evaluate the effect of substituting soybean meal for urea in diets based on deferred buffelgrass on the performance of feedlot sheep. Thirty mixed-breed sheep with an average initial body weight of 17±1.5 kg were distributed in a completely randomized design in which the experimental treatments consisted of five diets with six replicates. Diets were composed of deferred buffelgrass plus concentrates and calculated to be isoproteic. Treatments were represented by the substitution of soybean meal for the urea levels (0, 25, 50, 75, and 100%). Nutrient intake did not differ among animals fed diets with urea levels. Hot and cold carcass weights, hot and cold carcass dressing percentages, initial and final pH, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass quality; Non-protein nitrogen; Protein; Standing hay.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100602
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Sunflower cake in the ration of dairy cows: microbial production, production, composition and fatty acid profile of milk - doi: 10.4025/actascianimsci.v33i4.11327 Animal Sciences
Pereira, Elzânia Sales; Universidade Federal do Ceará; Pimentel, Patrícia Guimarães; Universidade Federal do Ceará; Bomfim, Marco Aurélio Delmondes; Embrapa Caprinos e Ovinos; Carneiro, Maria Socorro de Souza; Universidade Federal do Ceará; Cândido, Magno José Duarte; Universidade Federal do Ceará.
The objective of this study was to evaluate the microbial production, production, composition and fatty acids profile of milk from dairy cows fed rations with growing levels of sunflower cake. Eight Girolando cows were used, averaging 515 kg of body weight. The experimental design was a 4 x 4 Latin square, in duplicate, where the factors consisted of the rates of sunflower cake inclusion in the concentrate portion (0, 7, 14 and 21%). A decreasing linear effect was observed for protein and fat production in milk and N urea content. Allantoin rates (mmol day-1) were influenced by the levels of sunflower cake inclusion, with quadratic effect (p < 0.05). Uric acid, total purines, absorbed purines, microbial nitrogen and microbial synthesis were not affected...
Tipo: Trabalho de campo Palavras-chave: 5.04.03.00-1 coproduto; Nitrogênio não-proteico; Síntese microbiana co-product; Non-protein nitrogen; Microbial synthesis.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/11327
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The effect of vinasse on the growth performance and feed digestibility of Holstein male calves Animal Sciences
Gerimipour, Ali Reza; Azin, Mehrdad; Sanjabi, Mohammad Reza.
Industrial effluents of alcohol production are problematic for the environment. One of the proposed solutions to the reduction of harmful effects of the wastewater is to convert it into vinasse. The purpose of the present study is to investigate effects of rations with different levels of vinasse as a source of protein in the diet of 28 male Holstein calves, previously health checked, with an average initial weight of 300 ± 22.56 kg and the maximum similarity of weight and age. The calves were divided randomly into four treatments varied in vinasse (substituted for cottonseed meal): 0 (control), 5, 10 and 15 % with seven replications and each group was given its own specific diet for 110 days. Growth performance, nutrient digestibility and feed intake were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Daily Gain; Feed Intake; Non-protein nitrogen; By-product..
Ano: 2019 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/45666
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