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Mananoligossacarídeos, ácidos organicos e probióticos para leit?es de 21 a 49 dias de idade
Corassa,A.; Lopes,D.C.; Bellaver,C.;
Archivos de Zootecnia , 2012, DOI: 10.4321/S0004-05922012000300015
Abstract: an experiment was conduced using two hundred piglets maintained from twenty one to forty nine days of age under sanitary challenge, to know effects of mannan oligosaccharides, organic acids and probiotics about performance, gastrointestinal ph and feces score. an experimental design of randomized blocks with five treatments, ten replicates and four animals by experimental unity was used. the treatments were constituted by diet without additive, diet with mannan oligosaccharides, diet with acidifier and probiotic, diet with combination of mannan oligosaccharides, acidifier and probiotic and diet with antimicrobials. in the period from 21 to 35 days the animals fed the diet without additive presented larger feed intake, while those fed diet with acidifier and probiotic presented smaller weight gain. in the periods from 36 to 49 days and total larger weight gain for piglets with antimicrobials in relation to diet without additive and acidifier and probiotic was observed. piglets of diet without additives presented worses feed:gain relations in total period. the feces scores and ph values were not influenced by the treatments. diets supplemented with mannan oligosaccharide or mannan oligosaccharide, acidifier and probiotic propitiated similar performance for pigs from twenty one to forty nine days of age fed diet with antimicrobials.
Desempenho, características de carca?a e composi??o óssea de suínos alimentados com diferentes níveis de ractopamina e fitase
Corassa, Anderson;Lopes, Darci Clementino;Teixeira, Alexandre de Oliveira;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000800016
Abstract: the experiment was carried out aiming at evaluate the effect of using ractopamine and phytase in diets for swines at the end of the finishing period on performance, carcass characteristics and mineral composition on the third metacarpus bone. it was used 240 barrows with initial weight 100.7 ± 3.9 kg in a random block design, in a 2 × 3 factorial arrangement, with two levels of ractopamine (5 ppm and 10 ppm) and three levels of phytase (0, 500, and 750 ftu) totalizing six diets evaluated in five replications of eight animals per experimental unit. the experiment was conducted for three weeks and, at the end, the animals were slaughtered for carcass evaluation. there was no interaction among the levels of ractopamine and phytase for any of the variables. body weight, ration daily intake, farm to slaughter shrink, percentage of fat-free lean and contents of ash, phosphorus and fluoride in the bone were not influenced by the diets. the level 10 ppm ractopamine promoted the best results of weight gain, feed conversion, hot carcass weight, total fat-free lean, payment index, and content of calcium in the bone. the evaluated levels of phytase did not influence neither the performance nor the characteristics of the carcass, except the yield, which was higher for the animals fed 500 ftu diet than those that did not receive phytase. diets 10 ppm ractopamine provided better performance and carcass characteristics than 5-ppm diets. replacement of inorganic source by phytase (500 or 750 ftu) in the diet does not affect performance, characteristics of carcass neither mineral composition in the bone of swines fed diets with ractopamine.
Ractopamina e fitase em dietas para suínos na fase de termina??o
Corassa, Anderson;Lopes, Darci Clementino;Teixeira, Alexandre de Oliveira;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009001100015
Abstract: the objective of this study was to evaluate the effects of ractopamine and enzyme phytase on the performance and carcass characteristics of finishing pigs. three hundred and fifty-four commercial type barrows were used from a single source with 94.1 ± 5.7 kg initial body weight in a randomized complete block design, with six treatments and five replications with 11 or 12 animals per experimental unit evaluated. the following feeds were: control diet based on tables of nutritional requirements; (a) diet control with nutritional adjustment for ractopamine; (fit) diet a with phytase; (rac) diet a with ractopamine; (rac+fit) diet a with ractopamine and phytase; and (rac+fite) diet a with ractopamine and phytase with part of the demands for calcium and available phosphorus met by the enzyme. the experiment lasted 21 days and at the end the animals were slaughtered for carcass evaluation. the results were compared by orthogonal contrasts. feed intake was not influenced by the diets. the diet with adjusted protein and amino acid levels and without ractopamine did not improve performance compared with the control diet. there was effect of ractopamine on daily gain and feed conversion at the end of the 21-day period, and also on the pre-slaughter weight, hot carcass weight, carcass dressing, total fat-free lean and payment index. phytase inclusion in diets containing ractopamin for calcium and phosphorus available levels above the finishing pigs′ requirements did not effect the weight gain, feed conversion and carcass traits. ractopamine improved performance and carcass traits. the use of phytase in diets containing ractopamine in partial substitution of inorganic mineral sources made possibly to maintain performance and carcass traits.
Influence of the application of pre-emergent herbicides on the soil fauna of conventional sugarcane plantations
Rodrigo Ferreira da Silva,Douglas Leandro Scheid,Geomar Mateus Corassa,Gilvan Moisés Bertollo
Biotemas , 2012,
Abstract: The goal of this work was to evaluate the influence of pre-emergent herbicides on the edaphic fauna community found in soils of conventional sugarcane plantations. The experimental design was in randomized blocks, in a 6x3 factorial, with six control treatments of weed plants (T1: fallow; T2: manual weeding; T3:Tebuthiuron to 1,200gia.ha-1; T4: Ametryn to 3,000gia.ha-1; T5: Tebuthiuron to 1,000gia.ha-1 + Ametryn to 1,500gia.ha-1, T6: Tebuthiuron to 1,200gia.ha-1 + Ametryn to 3,000gia.ha-1) and three evaluation times (0, 40, and 80 days after herbicide application: DAHA). The abundance, the groups of the organisms, Margalef’s richness index, Pielou′s uniformity index, Simpson’s dominance, Shannon’s diversity index, number of Collembola and above-ground dry mass were evaluated. There were no differences in the treatments for Margalef’s richness index, Pielou′s uniformity index, Simpson’s dominance and Shannon’s index. The abundance of organisms was higher at 80 DAHA in the manual weeding treatment. Tebuthiuron did not affect Collembola populations when used alone or in combination with ametryn. The treatment with the herbicide Ametryn to 3,000gia.ha-1 reduced Collembola populations in relation to the fallow treatment and manual weeding.
New Report of Costalimaita ferruginea (Fabricius) (Coleoptera: Chrysomelidae) on Eucalyptus sp. (Myrtaceae) in Sinop - Mato Grosso, Brazil Novo Registro de Costalimaita ferruginea (Fabricius) (Coleoptera: Chrysomelidae) em plantas de Eucalyptus sp. (Myrtaceae) em Sinop - Mato Grosso, Brasil
Evaldo Martins Pires,Janaína de Nadai Corassa,Marliton Rocha Barreto,Marcus Alvarenga Soares
EntomoBrasilis , 2013, DOI: 10.12741/ebrasilis.v6i1.207
Abstract: Costalimaita ferruginea (Fabricius) (Coleoptera: Chrysomelidae) is the main Coleoptera defoliator of eucalyptus in Brazil and has a strong association with plants of the family Myrtaceae, bein the eucalyptus important for the sectors of energy, paper, pulp and furniture industry. The objective of the present study was to record the occurrence of this Chrysomelidae in eucalyptus plants in Sinop, State of Mato Grosso, Brazil, during the months of November 2010 to January 2011, thus contributing to increase in knowledge on the geographic distribution of this insect and also hypothesize that the Coleoptera may soon become a major pest of eucalyptus in the state of Mato Grosso. Costalimaita ferruginea (Fabricius) (Coleoptera: Chrysomelidae) é o principal Coleoptera desfolhador de eucalipto do Brasil e possui grande associa o com plantas da família Myrtaceae, sendo o eucalipto importante nos setores de energia, papel, celulose e indústria moveleira. O objetivo deste estudo foi registrar a ocorrência desse Chrysomelidae em plantas de eucalipto município de Sinop, Mato Grosso, Brasil, durante os meses de novembro de 2010 a janeiro de 2011, contribuindo assim para o aumento no conhecimento sobre a distribui o geográfica desse inseto e ainda, lan ar a hipótese de que brevemente esse Coleoptera poderá ser tornar uma importante praga da eucaliptocultura do estado de Mato Grosso.
Efeito de iscas formicidas granuladas sobre a biodiversidade de mirmecofauna n o alvo em serapilheira de eucalipto
Janaína De Nadai Corassa,Iris Cristiane Magistrali,Jorge Candido Moreno,Edison Bisognin Cantarelli
Comunicata Scientiae , 2013,
Abstract: Avaliou-se o efeito do uso sistemático de iscas granuladas destinadas ao controle de formigascortadeiras sobre a comunidade de formigas n o-alvo da serapilheira em eucaliptais do municípiode Vera, Mato Grosso. As formigas foram coletadas, usando o método de extrator de Winkler,em 50 amostras de 1m2 de serapilheira, em cada uma das fases: oito dias antes da distribui odas iscas, oito dias depois da distribui o das iscas e posteriormente a cada mês, totalizando 13coletas. Cada amostra teve distancia mínima de 50 m uma da outra. Os exemplares de formicídeosforam montados via seco, etiquetados e identificados em nível de gênero e de espécie. A análisedo efeito residual foi realizada pelo comparativo do número de indivíduos e espécies ao longodos meses. Um total de 273 formigas foi distribuído entre nove gêneros, quatro subfamílias e trezeespécies. Constatou-se que o índice de diversidade ao final do período de estudo n o voltou aosníveis iniciais encontrados antes do tratamento com o formicida, sugerindo que o princípio ativoda isca formicida altera os padr es de diversidade pré-existentes, causando impacto negativo namirmecofauna n o alvo. Este é o primeiro trabalho realizado na regi o e serve como subsídio paratrabalhos futuros sobre diversidade de formigas em serapilheira de eucaliptos
Adi??o de complexo multienzimático em dietas à base de soja extrusada: valores energéticos e digestibilidade de nutrientes em pintos de corte
Brito, Claudson Oliveira;Albino, Luiz Fernando Teixeira;Rostagno, Horacio Santiago;Gomes, Paulo Cezar;Carvalho, Débora Cristine Oliveira;Corassa, Anderson;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000400015
Abstract: this experiment was conducted to evaluate the effect of multienzymatic complex (mc) addition in diets with different types of extruded soybeans on the energy values and nutrient digestibility coefficients for broiler chicks. a total of 288 avian farms males broiler chicks averaging eight days old was allotted to a 3 x 2 factorial arrangement (under, standard and over processed extruded full fat soybean-based diets with and without mc, in a total of six treatments with eight replicates and six birds per experimental unit. feces were collected and weighed during five days. it was observed that the mc addition (composed by cellulase, amylase and protease) increased the coefficients of dietary ileal apparent digestibility of dm, cp, ge, and fat by 4.8, 1.3, 4.8, and 6%, respectively. however, under processed extruded full fat soybean-based diets, with mc, increased most the ileal digestibility: 10.7% (dm), 4.2% (cp), 11.4%, (ge), and 17.55% fat. the mc addition increased the ileal digestibilility of ndf, adf, and hemicelullose at average 10.60, 23.05, and 6.39%, respectively. the birds fed diets with standard processed extruded full fat soybean showed higher values of coefficients of nutrient ileal digestibility and of metabolizable energy than those fed extruded under and over processed full fat soybean-based diet.
Hidrolisado de mucosa intestinal de suínos em substitui??o ao plasma sangüíneo em dietas para leit?es de 21 a 49 dias
Corassa, Anderson;Lopes, Darci Clementino;Pena, Sérgio de Miranda;Freitas, Letícia Silva de;Pena, Graciane de Miranda;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000900012
Abstract: a trial was conduced to evaluate the effect partial or total substitution of blood plasma for hydrolyzed of intestinal mucosa of swine (hi) in diets of pigs from 21 to 49 days of age. a total of 140 piglets weaned at 21.7 ± 2.9 days of age with average weight of 5.54 ± 0.65 kg were allotted to a randomized experimental block design, with five treatments, seven replications of four animals per experimental unit. the experiment was divided in the phases from 21 to 35 days and from 36 to 49 days of age. the treatments consisted of a diet with plasma and four diets with different levels of hi 50 and hi 62 products in substitution of plasma. the partial or total plasma substitution for hi 50 and hi 62 products did not result in differences for average daily feed intake, average daily weight gain and feed:gain ratio of piglets in the evaluated periods. the absolute and relative weight of the functional viscera was not affected by treatments. there were not effects of the treatments on the characteristics of intestinal integrity in the duodenum, jejunum and ileum of piglets with 35 days of age. the products hi 50 and hi 62 could substitute total or partially the plasma in diets of pigs from 21 to 49 days of age without significant effects.
Análise multivariada das medidas morfométricas de potros da ra?a Mangalarga Marchador: análise de componentes principais
Pinto, Luís Fernando Batista;Almeida, Fernando Queiroz de;Quirino, Célia Raquel;Azevedo, Pedro Cezar Nehme de;Cabral, Grasiele Coelho;Corassa, Anderson;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000200029
Abstract: this work aimed to evaluate body measures of colts and fillies of mangalarga marchador breed with principal components analysis. measures were performed at birth week, in 55 colts and 41 fillies; at six months of age, in 35 colts and 37 fillies; and at twelve months of age, in 19 colts and 31 fillies. there were made 25 linear measures, including height, length, width and girth, and 11 angular measures. evaluation of animals with 12 months of age was made with 19 linear and 11 angular measures. analysis of linear measures in newly born reduced the number of measures from 25 to 7 and 9 in fillies and colts, respectively, while for angular measures the reduction was from 11 to 6 and 7 in the fillies and colts, respectively. analysis of linear measures in animals with six months age reduced the number of measures from 25 to 8 and 9, in the fillies and colts, respectively, while for angular measures the reduction was from 11 to 6, in both sexes. at twelve months of age the reduction of linear measures was from 19 to 6 and 5, for fillies and colts, respectively, while for angular measures the reduction was from 11 to 6 and 5, for fillies and colts, respectively. principal components analysis was efficient to reduce the number of linear and angular measures for morfometric evaluation of colts and fillies, with larger reduction among linear measures. the two first principal components, in the different evaluated ages, did not explained 80% of total variation available, and were not possible to judge at two-dimensional level
Avalia??o morfométrica de eqüinos da ra?a Mangalarga Marchador: medidas angulares
Cabral, Grasiele Coelho;Almeida, Fernando Queiroz de;Azevedo, Pedro Cezar Nehme de;Quirino, Célia Raquel;Santos, Edson Mauro;Corassa, Anderson;Pinto, Luís Fernando Batista;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000700017
Abstract: this work was carried out to evaluate angular measures of foals, from birth to 12 months age, and mature animals of the mangalarga marchador horse. eleven angular measures of 98 foals, 55 males and 43 females, were taken on the birth day and at each thirty days up to complete 12 months of age. results of measures were submitted to analysis of variance and mathematical model included effects of sex, region, nutritional management, herd, month and year of birth. the variables studied were not influenced by sex, herd, nutritional management, month and year of birth. the values increases and decreases at each month, what can be result of unequal growth of bones that form the angles. average values observed for shoulder-floor angle of foals varied from 58.3 to 63.40, for males, and from 58.1 to 63.1o, for females. the average value of shoulder-floor angle was 66,8o for stallions and mares. there were observed a relative agreement between the angles of anterior and posterior legs comparing values of angles shoulder-humerus with coxae-femur, humerus-radius with femur-tibia, metacarpus-phalanx with metatarsus-phalanx and tibia-metatarsus with metatarsus-phalanx. in anterior leg was observed variation directly proportional of the angles shoulder-floor and shoulder-humerus, while in posterior leg the variation there were inversely proportional between the angles coxae-floor and coxae-femur.
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