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Search Results: 1 - 10 of 235865 matches for " Francisco Carlos de Oliveira;Fontes "
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Efeito da ractopamina e de métodos de formula??o de dietas sobre o desempenho e as características de carca?a de suínos machos castrados em termina??o
Marinho, Paula Cambraia;Fontes, Dalton de Oliveira;Silva, Francisco Carlos de Oliveira;Silva, Martinho de Almeida e;Pereira, Francisco Alves;Arouca, Cláudio Luiz Corrêa;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000500011
Abstract: an experiment was conduced with the objective of evaluating the effects of diet formulation methods and supplementation of ractopamine (rac) on the performance and carcass characteristics of finishing barrows. sixty commercial hybrid swines were used, distributed in a randomized experimental block design, in a 2 x 3 factorial arrangment, with two levels of rac and three methods of diet formulation. supplementation with rac improved the final weight, daily weight gain (dwg) and feed conversion (fc) of the finishing barrows. addition of rac improved also the carcass characteristics by reducing the backfat thickness in point p1 and increase daily lean meat deposition rate. diets formulated based in the concept of ideal protein or by the increase of soybean meal provided better results on fc, but did not influence significantly daily feed intake, dwg and carcass characteristics. finishing barrows supplemented with rac during 21 or 28 days showed better performance and carcass quality. diets formulated to attend the levels of digestible lysine by the inclusion of l-lysine hcl with the adjustment of other amino acids for ideal protein relation (ideal protein) or by the greater inclusion of soybean meal (increase of cp) provided better results of feed conversion in finishing borrows supplemented with rac during 28 days.
Efeito dos níveis de lisina digestível e da ractopamina sobre o desempenho e as características de carca?a de suínos machos castrados em termina??o
Marinho, Paula Cambraia;Fontes, Dalton de Oliveira;Silva, Francisco Carlos de Oliveira;Silva, Martinho de Almeida e;Pereira, Francisco Alves;Arouca, Cláudio Luiz Corrêa;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000800012
Abstract: an experiment was carried out with the objective of evaluating the effect of different lysine levels in diets supplemented or not with ractopamine (rac) on the performance and carcass characteristics of finishing barrows. forty commercial hybrid swines were distributed to a randomized experimental block design, in a 2 x 2 factorial arrangement, with two digestible lysine levels (0.67 and 0.87%), with adjustment for the others amino acids to achieve an ideal protein relationship, and two levels of rac (0 and 5.0 ppm) in a period of 28 days. supplementation with rac resulted in a higher daily weight gain and of daily lean meat deposition rate, and better feed conversion. the lysine levels did not affect the performance of the animals, however there was a reduction of backfat thickness on p1 and p2 points and increased the daily lean meat deposition rate on the carcass of swine fed with diets containing 0.87% of digestible lysine when in vivo evaluated. in conclusion, performance and carcass characteristics of swine fed with diets supplemented with rac in the finishing phase improved; however the effect of rac on the loin depth was higher for the higher level of 0.87% of digestible lysine.
Níveis de lisina para leitoas selecionadas geneticamente para deposi??o de carne magra na carca?a, dos 15 aos 30 kg
Fontes, Dalton de Oliveira;Donzele, Juarez Lopes;Oliveira, Rita Flávia Miranda de;Silva, Francisco Carlos de Oliveira;Lopes, Darci Clementino;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000100012
Abstract: fifty hybrid gilts, with high genetic potential for lean gain and initial and final weight of 15.39 ± 0.59 and 30.93 ± 1.72 kg, respectively, were used to evaluate diet with different levels of lysine. an experimental design of randomized blocks, with five treatments, five replicates and two animals per experimental unit, was used. the treatments corresponded to a basal diet with 19% crude protein, supplemented with five levels of hcl-l-lisine, that resulted in diets with 0.95, 1.05, 1.15, 1.25 and 1.35% of lysine. the daily weight gain and daily lysine intake linearly increased with the dietary lysine level. there was quadratic effect of lysine levels on daily feed intake and feed/gain ratio, that increased to the lysine level of 1.26% (0.365%/mcal of de) or 1.13% (0.328%/mcal of de) of true digestible lysine, corresponding to the total and digestible lysine estimated intake of 14.62 and 13.12 g/day, respectively. there was no effect of treatments on protein and water percentage in carcass and on blood serum urea levels. the treatments influenced quadraticly the fat percentage and fat deposition rate in carcass, that decreased until 1.25 and 1.18% lysine level, respectively. the protein deposition linearly increased with the dietary lysine level. it was concluded that gilts from 15 to 30 kg require 1.26% of total lysine or 1.13% of digestible lysine, corresponding to a total and digestible lysine estimated intake of 14.6 and 13.1 g/day, respectively.
Níveis de lisina para leitoas selecionadas geneticamente para deposi??o de carne magra na carca?a, dos 30 aos 60 kg
Fontes, Dalton de Oliveira;Donzele, Juarez Lopes;Oliveira, Rita Flávia Miranda de;Lopes, Darci Clementino;Ferreira, Aloízio Soares;Silva, Francisco Carlos de Oliveira;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000100011
Abstract: fifty hybrid gilts, with high genetic potential for lean gain and initial and final average weight of 30.0 ± 0.45 and 59.9 ± 2.53 kg, respectively, were used in an experiment to evaluate diet with different levels of lysine. an experimental design of randomized blocks, with five treatments, five replicates and two animals per experimental unit, was used. the treatments corresponded to a basal diet with 17.5% crude protein, supplemented with five levels of hcl-l-lysine, resulting in diets with 0.80, 0.90, 1.00, 1.10, and 1.20% of total lysine. there were no effects of treatments on daily weight gain and serum urea concentration, however, daily feed intake and daily lysine intake increased linearly with the dietary lysine level. there was a quadratic effect of lysine levels on feed:gain ratio, that increased up to the total lysine level of 1.16% (0.347%/mcal of de) or 1.05% (0.315%/mcal of de) of digestible lysine, corresponding to the total and digestible lysine intake of 21.8 and 19.7 g/day, respectively. there was no effect of treatments on protein percentage, however, the water percentage in carcass linearly decreased. there was quadratic effect of treatments on fat percentage and fat deposition rate in carcass, that decreased up to the lysine level of 1.09 and 1.12%, respectively. the protein deposition rate improved quadraticly up to the level of lysine of 1.04%. it was concluded that gilts with high genetic potential for lean gain, from 30 to 60 kg require 1.16% of total lysine or 1.05% (0.315%/mcal of de) of true digestible lysine, corresponding to total and digestible lysine intake of 21.8 and 19.72 g/day, respectively, for maximal performance. the level of total lysine of 1.04% or 0,93% of digestible lysine proportioned the best protein deposition rate.
Available phosphorus in diets for 15 to 30 kg pigs genetically selected for meat deposition
Arouca, Cláudio Luiz Corrêa;Silva, Francisco Carlos de Oliveira;Fontes, Dalton de Oliveira;Saraiva, Alysson;Donzele, Juarez Lopes;Silva, Martinho de Almeida e;Paula, Eriane de;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000100010
Abstract: with the objective to evaluate the effect of dietary available phosphorus levels (ap) on the performance, blood and bone parameters of castrated male and female pigs, genetically selected for meat deposition, 60 commercial hybrids pigs with initial weight of 15.54±0.68 kg were allotted in a completely randomized block design, with six treatments (0.103, 0.210, 0.317, 0.424, 0.531, and 0.638% ap), five replicates, and two animals per experimental unit. pigs were fed ad libitum and water was provided until the end of the experimental period (21 days), when animals reached 31.31±2.94 kg. daily weight gain and daily feed intake increased, while the feed conversion improved quadratically up to 0.534, 0.487, and 0.574% ap maximum responses, respectively. the ap intake and the values of inorganic phosphorus in serum increased linearly with increasing the levels of ap in the diets. alkaline phosphatase activity increased quadratically up to 0.558% maximum response. bone breaking strength and calcium, phosphorus, and ash contents in the bones increased linearly with increasing ap concentration in the diets. the available phosphorus requirement of castrated male and female pigs genetically selected for meat deposition from 15 to 30 kg for best results of performance is 0.574%, corresponding to a daily intake of 8.26 g of available phosphorus.
Níveis de lisina para leitoas dos 6 aos 16 kg com alto potencial para deposi??o de carne magra na carca?a
Moreira, Huedy Flavio Vasconcelos;Fontes, Dalton de Oliveira;Silva, Francisco Carlos de Oliveira;Silva, Martinho de Almeida e;Fontes, Flávia Adriana Pereira Vieira;Gomes, Flávio Francisco Edson;Rossoni, Mariana Cruz;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000400016
Abstract: the experiment was carried out to establish the lysine requirement of females swine, from 6 to 16 kg live weight. sixty crossbreed gilts with high genetic potential for lean gain and average initial and final weight of 6.0 ± 0.21 kg and 16.0 ± 0.32 kg, respectively, were assigned to a randomized blocks design, with five treatments, four replications and three animals per experimental unit. the treatments corresponded to a basal diet with 21.60% crude protein, supplemented with five levels of hcl-l- lysine, resulting in diets with 1.3; 1.4; 1.5; 1.6 and 1.7% of total lysine. there was no effect of treatments on daily weight gain. there was quadratic effect of lysine levels on daily feed intake, daily lysine intake and feed/gain ratio, that increased to the estimated lysine level of 1.56%. there was no effect of treatments on protein percentage and carcass protein deposition rate, otherwise, fat percentage and carcass water and fat deposition rate increased linearly. it was concluded that gilts from 6 to 16 kg, with high genetic potential for lean gain, require 1.56% total lysine or 1.38% digestible lysine to achieve best development and 1.70% total lysine or 1.50% digestible lysine for the best carcass composition, corresponding, respectively, to an estimated feed intake of 8.46 and 10.06 g total lysine/day.
Níveis de lisina para suínos machos castrados selecionados geneticamente para deposi??o de carne magra na carca?a, dos 95 aos 122 kg
Arouca, Cláudio Luiz Corrêa;Fontes, Dalton de Oliveira;Bai?o, Nelson Carneiro;Silva, Martinho de Almeida e;Silva, Francisco Carlos de Oliveira;
Ciência e Agrotecnologia , 2007, DOI: 10.1590/S1413-70542007000200038
Abstract: an experiment was conducted to determine lysine requirements of barrows, during the late-finishing phase, to evaluate the effects of lysine levels on performance and carcass characteristics of animals. fifty hybrid pigs (ag-pic 412 x c-22), averaging 95.39 ± .85 kg initial weight and 122.29 ± 3.02 kg final weight were used in a completely randomized block design with five dietary treatments ranging from .50 to .90% of total lysine (.10% increments), five replicates and two animals per experimental unit. initial body weight and relationship coefficient were used to establish the blocks. quadratic effect of lysine level on average daily gain, feed conversion, daily lysine intake and daily lean gain was observed. there was no effect of treatments on daily feed intake, p1 backfat thickness, p2 backfat thickness, loin depth, lean percentage, carcass yield, carcass length, carcass length brazilian method, 10th rib fat depth, last rib fat depth and ham percentage. based on these results, it was concluded that the total dietary lysine requirement for barrows with high genetic potential for lean gain, from 95 to 122 kg, is 0.72% total lysine, which corresponds to approximately 25.46 g/day of lysine intake.
Available phosphorus levels for 95 to 120 kg barrows genetically selected for lean gain
Arouca, Cláudio Luís Corrêa;Silva, Francisco Carlos de Oliveira;Fontes, Dalton de Oliveira;Donzele, Juarez Lopes;Oliveira, Rita Flávia Miranda de;Haese, Douglas;Kill, Jo?o Luís;Paula, Eriane de;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000600017
Abstract: with the objective of evaluating available phosphorus (ap) levels in diets for barrows selected for lean meat deposition, eighty commercial hybrid pigs with initial weight of 94.05±1.05 kg were used in this experiment. pigs were allotted in a completely randomized block design, with five treatments (0.092, 0.156, 0.220, 0,284, and 0.348% of ap), eight replicates and two pigs per experimental unit. the average daily weight gain of pigs increased and the feed conversion improved quadratically with increasing ap in the diets up to the estimated levels of 0.21 and 0.20%, respectively. there was no effect of the dietary ap on average daily feed intake. however, ap intake, bone strength and concentration of phosphorus in the bones increased linearly with increasing ap in the diets. the levels of ap did not affect carcass traits; however, the alkaline phosphatase activity was improved and the values of serum inorganic phosphorus increased quadratically up to the estimated levels of 0.26 and 0.27% of ap, respectively. the available phosphorus levels of 0.21, 0.27, and 0.35%, corresponding to daily ap intakes of 6.34, 8.13, and 10.44 g result, respectively, in greatest performance, blood and bone parameters of 95 to 120 kg barrows selected for lean gain.
Redu??o do nível de proteína bruta e suplementa??o de aminoácidos em ra??es para suínos machos castrados mantidos em ambiente termoneutro dos 30 aos 60 kg
Ferreira, Rony Antonio;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Araújo, Claudio Vieira de;Silva, Francisco Carlos de Oliveira;Fontes, Dalton de Oliveira;Saraiva, Edilson Paes;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000200024
Abstract: an study was conducted to evaluate the influence of reduction of crude protein (cp) levels and amino acid supplementation in diets on the performance of castrated swines (landracex large white) maintained in a termoneutral environment. fifty crossbreed piglets (average initial body weight of 30.2 kg) were allotted to a completely randomized experimental design with five treatments (17, 16, 15, 14 and 13% cp) and five replications and two animals per experimental unit. experimental diets and water were fed ad libitum up to the end of the experiment, when the animals reached the average weight of 60.2 kg. temperature in the room was kept at 22.0oc and the relative humidity at 82.8%, corresponding to a black globe-humidity index (bghi) of 69.2. reduction of dietary cp level affected body weight gain (wg) of the animals, those animals fed diet with 17% cp showed smaller wg than the animals fed diet with 15 and 14% cp. feed intake (fi) and feed:gain ratio were not affected by treatments. reduction of cp level increased the protein and fat deposition in the carcass and reduced the total nitrogen excretion. the level of crude protein of diet to castrated swines from 30 to 60 kg maintained in a termoneutral environment could be reduced from 17 to 13% with no effect on performance, since diets are supplemented with essential limitant amino acids.
Sonolência e apnéia do sono: uma parceria desastrosa Sleepiness and sleep apnea: a disastrous partnership
Francisco Hora de Oliveira Fontes
Jornal Brasileiro de Pneumologia , 2008, DOI: 10.1590/s1806-37132008000700001
Abstract:
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