Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

4 ( 1 )

3 ( 1 )

2019 ( 93 )

2018 ( 180 )

Custom range...

Search Results: 1 - 10 of 71051 matches for " Roberto Germano da; "
All listed articles are free for downloading (OA Articles)
Page 1 /71051
Display every page Item
Características anátomo-estruturais da pele de ovinos (Ovis áries L.) lanados e deslanados, relacionadas com o aspecto físico-mecanico do couro
Jacinto, Manuel Antonio Chagas;Silva Sobrinho, Américo Garcia da;Costa, Roberto Germano;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000400020
Abstract: the objective of the study was establishing the anatomical-structural differences between the skin of non-wool sheep of the morada nova breed and wool-on sheep of the polwarth or ideal breeds and their relations to the physical-mechanical characteristics of their leather after tanning. ten animals of both breeds were used, with five animals of approximately one and four years of age of each breed. the animals were slaughtered, and immediately after skinning, samples were taken viewing the microtomy of the skin in the dorsal, lateral, ventral, hind and palette regions, parallel and perpendicular to the head-tail axle, and perpendicular to the grain of the skin. the skins were depilated, chromium-tanned and re-tanned. from the leather, three samples were taken from the two directions considered from the regions studied for physical-mechanical analysis, for tension and tear resistance and distension on the lastometer. the average of the results of the physical-mechanical analysis were compared by tukey test at the levels of 1 and 5% probability. the breed, the age, the region and the position exerted a positive effect on the values of the resistance of the leather to tension for the morada nova four year old sheep, reaching a minimum of 200 kg/cm2. the region and the position exerted a positive effect on the values of tear-resistence of the leather for both breeds studied, reaching a minimum of 40 kg/cm. the resistance of the leather on distension was superior to 8 mm, for all the animals studied, not influenced by breed, age, region or position. the skin of the ideal sheep presented a thermostatic skin layer greater than the reticular layer with great folicular and glandular density, contrary to the skin of the morada nova sheep where the thermostatic and reticular layers are of approximately the same thickness, with less folicular and glandular density.
Orienta??es sobre amamenta??o: a vantagem do Programa de Saúde da Família em municípios gaúchos com mais de 100.000 habitantes no ambito do PROESF
Cruz, Suélen Henriques da;Germano, Juliana de Araújo;Tomasi, Elaine;Facchini, Luiz Augusto;Piccini, Roberto Xavier;Thumé, Elaine;
Revista Brasileira de Epidemiologia , 2010, DOI: 10.1590/S1415-790X2010000200008
Abstract: objectives: to describe the breastfeeding orientation provided to pregnant women, and to compare its frequency during prenatal care in the psf (family health program) with the traditional health care model. methods: as part of the proesf/ufpel (2005) evaluation survey, this study investigated women who had delivered two years before the interview, living in the catchment area of 93 primary healthcare units (ubs) in 17 cities with more than 100,000 inhabitants, in rio grande do sul, brazil. interviews were carried out with 568 women who received prenatal care in their ubs, between march and may 2005, by qualified interviewers, through standardized questionnaires. analysis was performed using t-test for comparison of means, and the chi-square test for proportions, considering a 5% significance level. prevalence ratios were calculated, with 95% confidence intervals. results: breastfeeding orientations were more frequent in areas with psf model. about 18% of the mothers have not received any guidance, 39% received it at least once, and 43% received all the investigated orientations, and proportions were significantly different according to the type of ubs, with higher rates in the psf. conclusions: the psf model was more effective in providing breastfeeding orientation. this advantage should be promoted, either as an expansion of the strategy, increasing coverage, or encouraging traditional ubs workers to provide breastfeeding orientation in prenatal care.
Efeito de níveis de mel?o em substitui??o ao milho moído sobre o desempenho, o consumo e a digestibilidade dos nutrientes em ovinos Morada Nova
Lima, Cláudio Adriano Correia de;Lima, Guilherme Ferreira da Costa;Costa, Roberto Germano;Medeiros, Ariosvaldo Nunes de;Aguiar, Emerson Moreira de;Lima Júnior, Valdi de;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000100024
Abstract: performance, intake, and nutrients digestibility of 32 morada nova confined lambs were evaluated, using diets with increasing levels (0, 30, 60, 100%) of melon (cucumis melo l.) in substitution of corn grain. animals were about 6 months old, with an average of 15 kg of initial body weight and slaughtered at 25 kg. they were allocated in a completely randomized design with four treatments and eight replicates. the dry matter intake (dmi) presented a quadratic behavior for both sex, varying from 769 to 837 g for males, and from 722 to 646 g for females. intakes of om (organic matter), cp (crude protein), ee (ether extract), ndf (neutral detergent fiber), tdn (total digestible nutrients), tch (total carbohydrate) and nfc (non fiber-carbohydrate) showed a quadratic curve, reflecting the same behavior of dmi. there was a decreasing linear response for the coefficient of apparent digestibility of dry matter (dm). the apparent digestibility coefficients of om, cp, ee, ndf, and tch presented an increasing linear response with the addition of melon in substitution of ground corn in the diet. concerning the average daily gain (adg) there was a better performance for males compared with females, as the levels of melon increased. feed efficiency and conversion were not influenced by the treatments. there was an increasing linear effect for the days of confinement, which varied from 79 to 90. the levels of melon added to the morada nova lambs' diets provided reasonable performances. the treatment with 60% participation of melon shows the best economical return. on the other hand, when the level of melon is above 30%, the days in confinement increase, elevating the slaughter age.
Body composition and nutritional requirements of protein and energy for body weight gain of lambs browsing in a tropical semiarid region
Silva, Aderbal Marcos de Azevêdo;Santos, Ecileide Mamede dos;Pereira Filho, José Morais;Bakke, Olaf Andreas;Gonzaga Neto, Severino;Costa, Roberto Germano da;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000100028
Abstract: this study evaluated body fat, protein and energy contents and nutritional requirements for body weight (bw) gain of lambs in tropical semiarid conditions. thirty-two castrated santa inês 3-to-4-month old lambs (initial bw: 15.8 kg ± 1.4 kg) were used. eight lambs were initially slaughtered to serve as the reference for initial body weight composition. the remaining 24 animals were placed in a randomized block with three treatments and eight replications. each one of the eight experimental blocks consisted initially of three 15 kg lambs to which treatments (daily supplement levels: 0.0, 1.0, and 1.5% of body weight of a corn, soybean and minerals concentrate mixture adjusted for a daily 200 g bw gain at 1.5% level) were randomly assigned. as one of the lambs reached 30 kg all three were slaughtered. body composition (per kg of empty body weight - ebw), ranged from 171.59 to 145.84 g protein, from 0.53 to 319.00 g fat, and from 2,06 to 3,90 mcal energy, for lambs from 15 to 30 kg ebw, respectively. net requirements for 200 g bw gain/day ranged from 25.99 to 22.09 g protein and from 0.311 to 0.591 mcal energy for lambs from 15 to 30 kg ebw, respectively. santa inês lambs browsing in tropical semiarid regions require more protein and less energy than lambs raised in temperate regions or kept in feedlots in tropical areas, as reported in the literature.
Utiliza??o de resíduo agroindustrial de abacaxi desidratado em dietas para caprinos em crescimento: digestibilidade e desempenho
Correia, Marta Xavier de Carvalho;Costa, Roberto Germano;Silva, José Humberto Vilar da;Carvalho, Francisco Fernando Ramos de;Medeiros, Ariosvaldo Nunes de;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000600033
Abstract: the objective of this study was to evaluate the effect of replacing coastcross (cynodon dactylon) hay with a dehydrated pineapple by-product (dpb) on performance, apparent digestibility, and intake of digestible nutrients in growing goats. twenty-four crossbred saanen x criola female goats averaging 19.2 kg of body weight (bw) at the beginning of the trial were used in a completely randomized design. animals were assigned to one of the following four treatments: 0, 33, 66, or 100% of dpb in the diet. replacing coastcross hay with dpb did not significantly affect the apparent digestibility of dry matter (dm), crude protein (cp), and neutral detergent fiber (ndf). however, the apparent digestibility of both organic matter (om) and cellulose (cel) increased linearly while that of acid detergent fiber (adf) showed a quadratic effect with the increasing levels of dpb in the diet. the average intake of digestible nutrients, expressed in g/kg bw0.75, for treatments with 0, 33, 66, or 100% of dietary dpb were in this order: 62.35, 63.58, 59.53 and 54.47 for dm; 60.40, 61.51, 57.94 and 51.83 for om; 7.91, 7.86, 7.27 and 6.44 for cp; 24.85, 22.94, 21.61 and 18.75 for ndf; 7.62, 5.30, 5.96 and 7.11 for adf; and 37.62, 27.83, 32.91 and 31.98 for cel. replacing coastcross hay by dpb in the diet improved the apparent digestibility of om, cel, and adf and resulted in bw that was considered satisfactory for growing female goats.
Mensura??o dos custos e avalia??o de rendas em sistemas de produ??o de leite caprino nos Cariris Paraibanos
Dal Monte, Hélio Luiz Beretta;Costa, Roberto Germano;Holanda Júnior, Evandro Vasconcelos;Pimenta Filho, Edgard Cavalcanti;Cruz, George Rodrigo Beltr?o da;Menezes, Marcos Paulo Carrera;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010001100029
Abstract: the study aimed at calculating milk production cost and evaluating the income in goat milk farm activity by production systems. the production systems are located in the sub region of cariris paraibanos and they were defined by criteria of technical and economical efficiency, with grouping method by multivariate data analysis and formation of five groups. the method used for production cost was the operational cost, and the criterion adopted for the conversion of the milk activity cost for the cost of the milk was the participation of the milk income in the gross income of the activity. the criteria adopted for analysis of income were gross margin and net margin. in the count of goat milk production cost the values were r$ 0.67/l r$ 0.73/l, r$ 0.80/l, r$ 0.88/l and r$ 1.21/l for the production systems 1, 2, 3, 4 and 5. systems of production 1 and 2 with high technology and net margin of r$ 9,147.30 and r$ 3,995.18 in the milk activity, were the ones that showed the lowest costs and they are economically the most advantageous
Typology and characterization of goat milk production systems in the Cariris Paraibanos
Costa, Roberto Germano;Dal Monte, Hélio Luiz Beretta;Pimenta Filho, Edgard Cavalcanti;Holanda Júnior, Evandro Vasconcelos;Cruz, George Rodrigo Beltr?o da;Menezes, Marcos Paulo Carrera;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000300027
Abstract: this work was aimed to identify the typology and the characteristics of the goat milk production systems. seventy rural properties were researched. multivariate data analysis with cluster formation techinique was used, and also the identification of five different groups of production systems. the production systems were classified through technical and economical efficiency, ranking groups 1 and 2 as high technological level, groups 3 and 4 as medium level, and the group 5 as low level. the high technological level systems used practices of more rational handling with larger technological employment becoming better specialized. these systems present the largest revenues of milk and unitary net profit. medium technological production systems adopt technological recommendations and look for alternatives of handling practices. production system 1 adopts intensive sanitary practices for the farmyard facilities and stables, but this does not happen in the production system 2. vermifuge is applied three times a year in system 1 while in the system 2 it is applied twice a year. the producers of the systems 1 and 2 obtain more financial resources through official credit lines, and the producers of the group 2 are more punctual on the pay off deadlines.
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.
Nutritional value of silk flower hay for lambs
Silva, Aderbal Marcos de Azevêdo;Costa, Roberto Germano da;Pereira Filho, José Morais;Bakke, Ivonete Alves;L?bo, Katiuscia Menezes da Silva;Lira Filho, Gerson Edmo;Nóbrega, Giovanna Henriques da;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010001200026
Abstract: it was evaluated four levels of silk flower (calotropis procera s.w.) hay (sfh) as a substitute of sorghum (sorghum bicolor) hay (sbh) in diet for lambs. nutritional value of silk-flower hay was determined based on aparent digestibility and on metabolic, productive and economical performance of santa inês lambs. it was used twenty-four castrated males at 15.72 ± 1.92 kg body weight randomly distributed in four diets with silk-fklower and sorghum hay ratios (100:0, 66:33, 33:66, 0:100), and supplemented with a concentrate mixture based on 50% roughage:50% concentrate (weight/weight). increase in the levels of silk-flower hay in the diet reduced weight gain and nutrient intake and it increased feed conversion and digestibility coeficients of all the nutrients. nitrogen balance was similar in all levels of silk-flower hay, although there was a tendency of reduction in nitrogen retention at levels 66% and 100% of silk-flower hay. at the levels 0 and 33% of silk-flower hay in the diet, dry matter ingestion (170 and 180 g/day), daily average weight gain (84 and 89 g/kg0.75) and feed conversion (4.99 and 5.02) were satisfactory. silk-flower hay can represent up to 16.5% of the total food ingestion or 33% of the roughage in diet for lambs.
Composi??o centesimal e análise sensorial da carne de ovinos Morada Nova alimentados com dietas contendo mel?o em substitui??o ao milho
Costa, Roberto Germano;Lima, Cláudio Adriano Correia de;Medeiros, Ariosvaldo Nunes de;Lima, Guilherme Ferreira da Costa;Marques, Carlo Aldrovandi Torre?o;Queiroga, Rita de Cássia Ramos do Egypto;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011001200026
Abstract: the objective of this trial was to evaluate the influence of the addition of melon fruit replacing ground corn in diets on the centesimal composition and sensory analysis of meat from morada nova lambs. twenty morada nova males with average weight of 15 kg were distributed in a completely randomized design with four increasing levels (0, 30, 60 and 100%) of melon in substitution of ground corn, each one with five replications. to determine the chemical composition of meat, the semimembranosus muscle was used. with the muscle longissimus dorsi sensory analysis, the attributes of taste, odor, juiciness, softness and overall appearance were conducted by quantifying, by means of scoring. data analysis showed no significant differences in proximate composition (moisture, protein, lipid and ash). at the sensory analysis, juiciness showed quadratic response with a maximum peak of 5.18 and the other organoleptic qualities (flavor, tenderness and overall appearance) were not affected by the inclusion of melon replacing corn in diets. the use of melon in diets for morada nova sheep diets does not affect the main organoleptic qualities of meat.
Page 1 /71051
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.