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Search Results: 1 - 10 of 67254 matches for " Marcílio Fontes;Silva "
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Efeito do tratamento com hidróxido de sódio sobre a fra o fibrosa, digestibilidade e tanino do feno de jurema-preta (Mimosa tenuiflora. Wild)
Pereira Filho José Morais,Vieira Ednéia de Lucena,Silva Aderbal Marcos de Azevedo,Cezar Marcílio Fontes
Revista Brasileira de Zootecnia , 2003,
Abstract: O experimento foi conduzido com o objetivo de avaliar o efeito do tratamento com hidróxido de sódio (NaOH) na fra o fibrosa, no teor de tanino e na digestibilidade in vitro da matéria seca do feno de jurema-preta. As folhas foram colhidas manualmente e desidratadas à sombra. O tratamento químico consistiu na pulveriza o do feno com solu o de 0; 2; 4; 6 e 8% de NaOH, na propor o de 1 litro da solu o para 1 kg de feno. Amostras do feno foram submetidas à determina o da matéria seca (MS), proteína bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA), tanino e digestibilidade in vitro da matéria seca (DIVMS), que se constituíram nas variáveis analisadas. O delineamento foi o inteiramente casualizado, com cinco tratamentos e quatro repeti es. O tratamento com NaOH proporcionou efeito linear decrescente nos teores de MS, hemicelulose e tanino, enquanto, para FDN e FDA, ocorreu efeito quadrático. A PB n o foi afetada e a DIVMS melhorou com o aumento da concentra o de NaOH. A estimativa da DIVMS pelo teor de tanino, apesar de significativa, carece de mais estudos.
Prediction of carcass tissue composition of F1 crossbred goats finished on native pasture
Silva, Rayana de Medeiros;Pereira Filho, José Morais;Silva, Aderbal Marcos de Azevêdo;Cezar, Marcílio Fontes;Silva, Anderson Luiz Nascimento da;Medeiros, Ariosvaldo Nunes de;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011000100026
Abstract: the objective of this study was to estimate tissue composition of the carcass from physical composition of commercial cuts of f1 crossbred goats (boer with females of non-defined racial standard) finished on native pasture with four levels of supplementation with concentrate (0.0; 0.5; 1.0 and 1.5% of bw in dry matter). it was used 24 non-castrated animals at initial body weight of 15.52 kg and at 120 days of age. the carcass was sectioned in the half, and from the lefthalf carcass, the following cuts were detached: leg, loin, ribs, shoulder and neck, which were dissected in muscle, bone and fat. carcass weight and yield were predicted from the weight and yield of tissues in the commercial cuts by regression analysis. all the cuts can be used to predict muscle and fat weight in the carcass. for the muscle, the relationship was linear and positive in the cuts leg, ribs, shoulder and neck, and cubic in the loin; for all the cuts, fat kept a linear relationship with the carcass. muscle and fat yield of all the commercial cuts showed a positive linear relationship with carcass yield, except for rib fat, for which a cubic relationship was found. considering all the results obtained and using the relationship with the highest determination coefficient, the ribs were the cut that provided the best estimate of the carcass muscle and fat yields of f1 crossbred goats (boer with females of non-defined racial standard) finished on native pasture.
The effect of supplementation on the tissue composition of the commercial cuts of cross-bred F1 (Boer × SPRD) finished in native pasture
Silva, Rayana de Medeiros;Pereira Filho, José Morais;Silva, Anderson Luiz Nascimento da;Cezar, Marcílio Fontes;Silva, Aderbal Marcos de Azevêdo;Oliveira, Nadjanara Souza;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000600026
Abstract: the present study aimed to assess the effect of levels of supplementation with concentrate on the tissue composition of commercial cuts of goats finished in native pasture. it was used 24 non-castrated cross-bred f1 (boer × sprd) goats at the age of 120 days, with initial average body weight (bw) of 15.52 kg distributed in four levels of supplementation with concentrated feed (0.0; 0.5; 1.0 and 1.5% of body weight in dry matter) and slaughtered at 25.12 kg; 26.62 kg; 28.56 kg and 29.19 kg, respectively, corresponding to 218 days of life. the carcass was sectioned in the half, and from the left half of the carcass, the following cuts were separated: leg, loin, ribs, shoulder and neck, which were dissected into muscle, bone and fat, with the results expressed in weight and yield of the tissues in relation to the weight of the cut. supplementation incresead the muscle weight, as well as the fat weight and yield and decreased the muscle:fat relationship; however there was no influence on the proportion of muscle in the five studied cuts. therefore, in order to obtain better finished commercial meat cuts, supplementation of 1.0 and 1.5% of body weight is recommended. nevertheless, supplementation is unnecessary for obtaining lighter meat cuts with a good proportion of muscle.
Respostas fisiológicas de caprinos de diferentes grupos genéticos no semi-árido paraibano
Souza, Bonifácio Benicio de;Souza, Expedito Danusio de;Silva, Rosangela Maria Nunes da;Cezar, Marcílio Fontes;Santos, José Romulo Soares dos;Silva, Gustavo de Assis;
Ciência e Agrotecnologia , 2008, DOI: 10.1590/S1413-70542008000100045
Abstract: this experiment was realized in pendencia's experimental station of emepa-pb in soledade- pb city. it aimed to avaliate the fisiological and hematological parameters of caprines from diferent genetic groups in the semi-arid conditions. thirty males weithing about 25,17 kg were used, being six animals from each genetic group: ? boer + ? srd (bo), ? anglo-nubiana + ? srd (an), ? savana + ? srd (sa), ? kalarari + ? srd (ka) e ? moxotó + ? srd (mo). it was verified significative effect (p<0,05) among the genetic groups for breathing frequency and hematocrit. the bo presented breathing frequency more elevated (p<0,05) than the an and mo; and its hematocrit was less elevated (p<0,05) than the mo. the period affects sifgnificatively (p<0,05) the rectal temperature and breathing frequency, being the superior averages in the afternoon period. for the other parameters there were not significative differences among the genetic groups studied. besides this, it can be concluded that the studied animals are adaptaded to the semi-arid climatic conditions.
Composi??o tecidual e química dos cortes comerciais da carca?a de cordeiros Santa Inês terminados em pastagem nativa com suplementa??o
Santos, José R?mulo Soares dos;Pereira Filho, José Morais;Silva, Aderbal Marcos de Azevêdo;Cezar, Marcílio Fontes;Borburema, Jucileide Barboza;Silva, José Orlando Ramos;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009001200028
Abstract: the objective of this study was to evaluate the effects of feed supplementation on the chemical and tissue composition of leg and loin from carcass of santa inês lambs, finished on pasture. twenty-four castrated 3 to 4 month-old santa inês lambs were used, initial live body weight (lw) 15.8 kg, distributed in three concentrate supplementation levels (0.0, 1.0 and 1.5% lw). a randomized complete design was used, with three treatments and eight replications (lambs). the leg and loin were dissected in muscle, bone, fat and to determine tissue composition and the meat was submitted to chemical analyses. the supplementation influenced the yields of loin and leg muscles, bones, fat, dry matter, ash, crude protein and fat. the supplementation improved muscle yield and chemical composition of the loin and leg from santa inês lambs finished on native pasture. when the objective is to produce lighter carcasses, the recommended concentrate level is 1.0% lw, and 1.5% lw is recommended to produce heavier carcasses.
Effect of supplementation on the performance of F1 crossbred goats finished in native pasture
Carvalho Júnior, Aloísio Monteiro de;Pereira Filho, José Morais;Silva, Rayana de Medeiros;Silva, Aderbal Marcos de Azevêdo;Cezar, Marcílio Fontes;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011001100032
Abstract: the present study aimed to assess the effect of supplementation on the performance of f1 (boer × females of no defined breed) goats finished in native pasture. the experiment was conducted at the universidade federal de campina grande, patos campus, paraíba, brazil, with twenty-four 120-day-old non-castrated f1 (boer × ndb) male goats, with a 15.52 kg live weight (lw). animals were distributed in four levels of supplementation (0.0; 0.5; 1.0; 1.5% of body) and six replicates. in order to perform the evaluation of dry matter availability, the herbaceous vegetation was divided into grass and herbaceous dicotyledon and evaluated at the beginning (5/28/2007), in the middle (7/9/2007) and at the end (8/6/2007) of the experiment. in the beginning of the experiment, the availability of grass dry matter was 1,102.89 kg/ha, and at the end of the experiment, the availability of the referred matter was greater (1,494.81); on the other hand, the opposite occurred for the dicotyledons, with a dry matter content of 1,759.46 kg/ha in the beginning of the experiment, and only 236.76 kg/ha at the end of the experiment. supplementation made it possible to estimate the increase in dry matter intake of 257.15 g/day and of 20.79 g/kg0.75/day, as well as the daily weight gain of 103 g for each percentage point increase that resulted from supplementation. the availability and nutritional quality of forage had a strong influence on the effect of supplementation on dry matter intake, with a negative response for supplementation levels of up to 0.74% of the live weight consequently, the finishing of f1 crossbred goats in a grazing area in the caatinga can be improved with the supplementation of concentrate at levels 1.0 to 1.5% of the live weight.
Características da carca?a de ovinos Santa Inês terminados em pastejo e submetidos a diferentes níveis de suplementa??o
Dantas, Adriano Freitas;Pereira Filho, José Morais;Silva, Aderbal Marcos de Azevedo;Santos, Ecileide Mamede dos;Sousa, Bonifácio Benício de;Cézar, Marcílio Fontes;
Ciência e Agrotecnologia , 2008, DOI: 10.1590/S1413-70542008000400037
Abstract: the aim of this study was to evaluate carcass characteristics of santa inês lambs, maintained in native pasture and submitted to different supplementation levels in the diet (1,5%, 1,0% e 0,0% do lw). twenty-four castrated sheep with 15 ±1,44 kg of mean live weight (lw) were used and average age of 150 days. the concentrate was constituted of cracked corn, soybean meal and mineral salt. a completely randomized design with three treatment and eight replicates was used. the use of the supplementation makes possible to get lambs with desirable characteristics of the carcass, such as: better yield, increase rib eye area, less lose of weight in the cooling, and greater weight of retail cuts. according to the economical analysis it may be concluded that, if the aim is to get lighter carcasses with weight around 7 kg and with minimum level of fat there is not any necessity of supplementation with concentrate, but, if the aim is to get the carcasses weighing from 10 to 12 kg and with better level of finishing, it is recommended supplementation with 1,0 to 1,5% of the live weight with concentrate.
Efeito do tratamento com hidróxido de sódio sobre a fra??o fibrosa, digestibilidade e tanino do feno de jurema-preta (Mimosa tenuiflora. Wild)
Pereira Filho, José Morais;Vieira, Ednéia de Lucena;Silva, Aderbal Marcos de Azevedo;Cezar, Marcílio Fontes;Amorim, Francisco Uchoa;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000100009
Abstract: experiment was carried out with the goal to evaluate the effect of sodium hydroxide (naoh) on fiber fraction, tannin level and dry matter in vitro digestibility of jurema-preta hay. leaves were harvested by hand and dried under shadow. chemical treatment was done by pulverization of hay with 0; 2; 4; 6 and 8% naoh solution following the proportion of 1 liter of solution to 1 kg of hay. samples of hay were submitted to determinations of dry matter (dm), crude protein (cp), neutral detergent fiber (ndf), acid detergent fiber (adf), tannin and dm in vitro digestibility which were the variables analyzed. design completely randomized was used with five treatments and four repetitions. naoh treatment caused linear effect in dm, hemicellulose and tannin contents; while for ndf and adf was observed quadratic effect. cp was not affected and dmivd was improved by naoh concentration increase. dmivd estimated by tannin content need to be more studied, instead of its significance.
Characteristics of carcass and non-carcass components in feedlot native goats in the Brazilian semiarid region
Silva, Andrea Souza da;Furtado, Dermeval Araújo;Medeiros, Ariosvaldo Nunes de;Costa, Roberto Germano;Cezar, Marcílio Fontes;Pereira Filho, José Morais;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011000800027
Abstract: the objective of this study was to evaluate the characteristics of carcass and non-carcass components in brazilian semi-arid native goats of different genotypes in feedlot system. it was used 30 non-castrated azul, graúna and moxotó goats with average initial weight of 15.93 ± 2.4, distributed in a completely randomized design with 3 genotypes and 10 replicates. the experimental diet used had a roughage:concentrate ratio of 47:53. there was a significant effect for weight gain and subcutaneous fat thickness according to genotype. retail cut yields did not differ among the studied breeds. the percentage of non-carcass components in relation to live weight and empty body weight were not different among genotypes. graúna and azul genotypes showed daily gain greater than moxotó genotype. the subcutaneous fat thickness presented by azul and moxotó genotypes was greater than that of graúna genotype. all genotypes have good quantitative and morphometric carcass traits in addition to satisfactory yields of cut and non-carcass components, but for subcutaneous fat thickness (carcass finishing), azul and moxotó genotypes stand out.
Efeito da suplementa??o nas características de carca?a e dos componentes n?o-carca?a de caprinos F1 Boer × SRD terminados em pastagem nativa
Carvalho Júnior, Aloísio Monteiro de;Pereira Filho, José Morais;Silva, Rayana de Medeiros;Cezar, Marcílio Fontes;Silva, Aderbal Marcos de Azevêdo;Silva, Anderson Luiz Nascimento da;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000700020
Abstract: the objective of this study was to evaluate the effect of supplementation on the carcass characteristics of crossbred boer goats finished on native pasture. twenty-four boer crossbreed goats were used, 120 days old and with an initial 15.52 kg bw. the supplemental feeding was randomly assigned to the animals according to a completely randomized design with 4 supplementation levels (0.0, 0.5, 1.0 and 1.5%) and six replications (goats). the animals had access to the pasture from 7:30 a.m. until 4 p.m. throughout the experimental period and were taken to stalls to receive supplemental feeding in individual cages equipped with hods and a water. full and empty digestive tract (dt) were weighed, as well as the bladder and gall bladder to obtain the empty body weight (ebw). the visceras yield tended to be different from that observed for absolute weight, except for hoof yield that presented a decreasing linear behavior. the hot and cold carcass weights and the yields and the empty body weight and the biological yield presented positively response to the supplementation levels. regarding the participation of wholesale cuts in the carcass, only the neck yield presented linear effect in response to the increase in supplementation levels. full digestive tract and digestive content weights did not respond to the supplementation levels. the digestive content weight was decisive for the effect of supplemental feeding in the full digestive tract weight. wholesale cuts weight responded positively to the supplementation levels.
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