Consulta: creatorFacets:"Gandra,Jefferson Rodrigues"
Registros recuperados: 8
Data/hora: 13/06/2024 12:48:59

Effects of polymer coated slow-release urea on ruminal fermentation and nutrient total tract digestion of beef steers
Provedor de dados: 96
Autores: 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

Fatty acid profile and composition of milk protein fraction in dairy cows fed long-chain unsaturated fatty acids during the transition period
Provedor de dados: 96
Autores: Rennó,Francisco Palma; Freitas Júnior,José Esler de; Gandra,Jefferson Rodrigues; Verdurico,Lenita Camargo; Santos,Marcos Veiga dos; Barletta,Rafael Villela; Venturelli,Beatriz Conte; Vilela,Flávio Garcia.
The objective of this study was to evaluate the utilization of different sources of unsaturated long-chain fatty acids in diets for dairy cows during the transition period and early lactation on the milk fatty acid profile and composition of the protein fraction. Thirty-six Holstein cows were divided into three groups, fed the following diets: control (C); soybean oil (SO); and calcium salts of long-chain unsaturated fatty acids (CS). The milk samples utilized for analysis were obtained weekly from parturition to twelve weeks of lactation; each one of the samples originated from two daily milkings. Milk composition and total nitrogen, non-protein nitrogen and non-casein nitrogen levels were analyzed. The cows receiving the diet with calcium salts had lower...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calcium salts of fatty acids; Corn silage; Soybean oil.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001100008

Productive performance and composition of milk protein fraction in dairy cows supplemented with fat sources
Provedor de dados: 96
Autores: 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

Effect of unsaturated fatty acid supplementation on digestion, metabolism and nutrient balance in dairy cows during the transition period and early lactation
Provedor de dados: 96
Autores: Rennó,Francisco Palma; Freitas Júnior,José Esler de; Gandra,Jefferson Rodrigues; Maturana Filho,Milton; Verdurico,Lenita Camargo; Rennó,Luciana Navajás; Barletta,Rafael Villela; Vilela,Flávio Garcia.
The objective of this study was to evaluate the influence of unsaturated fatty acids in diets for dairy cows during the transition period and early lactation on intake, digestion and nutrient balance. Thirty-six multiparous and pregnant Holstein cows were randomly distributed to receive one of the experimental diets in the period from 35 days before the expected date of parturition to 84 days post-partum. Diets were fed as a total mixed ration and were as follows: control (C); soybean oil (SO), based on inclusion of 30 g/kg (DM basis); and calcium salts of unsaturated fatty acids (CS), based on inclusion of 30 g/kg (DM basis). Pre-partum dry matter intakes (DMI) of cows fed C, SO and CS were 11.9, 9.5 and 9.6 kg/d, respectively. Post-partum DMI was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dry matter intake; Energy balance; Ruminant digestion.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000400212

Productive performance and milk protein fraction composition of dairy cows supplemented with sodium monensin
Provedor de dados: 96
Autores: Gandra,Jefferson Rodrigues; Rennó,Francisco Palma; Freitas Júnior,José Esler de; Santos,Marcos Veiga dos; Silva,Luís Felipe Prada e; Araújo,Ana Paula Chaves de.
The objective of this work was to evaluate the levels of sodium monensin on lactating cows and their effects on productive performance and milk protein fraction composition. It was used 12 Holstein cows, distributed in four balanced 3 × 3 Latin squares, and fed three diets: one control without monensin, and two diets with monensin at the levels of 24 or 48 mg/kg DM added to the concentrate. Milk production was daily measured throughout the entire experimental period. The samples used for analysis of milk composition were collected on two alternated days from the two daily milking. Non-protein nitrogen, total nitrogen and non-casein nitrogen contents were directly evaluated in the milk, and casein, whey protein and true protein contents were indirectly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Casein; Dairy cows; Ionophores; Milk yield and composition; Productive efficiency.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000800025

Digestible lysine levels in diets for pigs from 24 to 50 kg under sanitary segregation
Provedor de dados: 96
Autores: Gandra,Érika Rosendo de Sena; Trindade Neto,Messias Alves da; Berto,Dirlei Antonio; Budiño,Fábio Enrique Lemos; Gandra,Jefferson Rodrigues; Schammass,Eliana Aparecida.
This study evaluated the relationship between digestible lysine and metabolizable energy for barrow and gilts from 24 to 50 kg. Performance, digestibility and blood profile were studied. The experimental design was of randomized blocks, with five treatments, eight replicates and two animals per experimental unit in the performance assay and four replicates and one animal per experimental unit in the digestibility assay. The blood profile was chosen at 20 random animals of each sex, with four replicates per treatment and the animal as experimental unit. The treatments were 0.80, 0.90, 1.00, 1.10 and 1.20% digestible lysine. There was a linear effect of lysine levels on weight gain and feed conversion in females and crude protein in both sexes, gross energy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Barrow; Gilt; Leucocytes; Metabolizable energy; Specific genotype.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900011

Nutrient digestion, microbial protein synthesis, and blood metabolites of Jersey heifers fed chitosan and whole raw soybeans
Provedor de dados: 96
Autores: Gandra,Jefferson Rodrigues; Takiya,Caio Seiti; Oliveira,Euclides Reuter de; Paiva,Pablo Gomes de; Goes,Rafael Henrique de Tonissi e Buschinelli de; Gandra,Érika Rosendo de Sena; Araki,Hayne Mayumi Cariolano.
ABSTRACT This study was undertaken to determine the effects of chitosan and whole raw soybean on nutrient intake and total tract digestion, nitrogen utilization, microbial protein synthesis, blood metabolites, and energy balance of dairy heifers. Twelve Jersey heifers (6±0.5 months of age and 139.50±25.56 kg of live weight; mean ± standard deviation) were randomly assigned to a replicated Latin square design with a 2 × 2 factorial arrangement. The experimental period consisted of 14 days of adaptation to diets, six days of sampling, and five days of washout. The experimental diets were: control (CO); chitosan (CHI, inclusion of 2.0 g kg−1 DM of chitosan); whole raw soybean (WS, 163.0 g kg−1 of WS on diet DM basis); and chitosan + whole raw soybean...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial; Nitrogen metabolism; Oilseed; Rumen modulator.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000300130

Parâmetros sanguíneos de vacas leiteiras suplementadas com diferentes fontes de gordura
Provedor de dados: 65
Autores: Freitas Júnior,José Esler de; Rennó,Francisco Palma; Silva,Luiz Felipe Prada e; Gandra,Jefferson Rodrigues; Maturana Filho,Milton; Foditsch,Carla; Venturelli,Beatriz Conte.
O objetivo deste trabalho foi avaliar a utilização de diferentes fontes de gordura nas rações de vacas em lactação e seus efeitos sobre o consumo de matéria seca e as concentrações dos parâmetros sangüíneos. Foram utilizadas 12 vacas da raça Holandês, agrupadas em três quadrados latinos balanceados 4x4 e alimentadas com as seguintes rações: 1) controle; 2) óleo de soja refinado; 3) grão de soja in natura; e 4) sais de cálcio de ácidos graxos (Megalac-E). As concentrações de colesterol total, colesterol, lipoproteína de baixa densidade (LDL) e colesterol de alta densidade (HDL) foram maiores (P&lt;0,05) para as vacas alimentadas com as rações contendo fontes de gordura em relação à ração controle. As concentrações de uréia e nitrogênio ureico no soro foram...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lipídios; Enzimas hepáticas; Perfil metabólico; Lipidograma; Proteinograma.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000400032