oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Search Results: 1 - 10 of 55 matches for " Ciniro; "
All listed articles are free for downloading (OA Articles)
Page 1 /55
Display every page Item
Composi??o físico-química e potencial para ensilagem do sorgo-de-guiné gigante em seis épocas de semeadura
Mateus, Gustavo Pavan;Crusciol, Carlos Alexandre Costa;Costa, Ciniro;
Pesquisa Agropecuária Brasileira , 2005, DOI: 10.1590/S0100-204X2005000900014
Abstract: the lack of alternative crops for fall-winter cultivation is a drawback in the utilization of agricultural production systems, especialy in regions with dry winters. the purpose of this study was to evaluate the potential of giant guinea sorghum (sorghum bicolor subsp. bicolor guinea race) for forage production, ensiling and plant chemical composition, in different sowing dates. the experimental design was a randomized block, with four replications, and six sowing dates. although sowing was late, giant guinea sorghum showed anticipation in development stages due to sensibility to photoperiod; its dry matter production was low, nevertheless the species presented a better quality of forage mass. due to the considerable capacity of dry matter production and ensiling potential, this species is a good option.
Suplementa??o mineral e mobiliza??o de cálcio nos ossos de eqüinos em pastagem de Brachiaria humidicola
Puoli Filho, José Nicolau Prospero;Arrigoni, Ciniro Costa, Mário de Beni;Silveira, Antonio Carlos;
Pesquisa Agropecuária Brasileira , 1999, DOI: 10.1590/S0100-204X1999000500020
Abstract: during 150 days 12 female quarter horse yearlings at one year of age were kept solely on brachiaria humidicola pasture, on a complete randomized design, with three treatments and four replications: level 0 (nrc1989); level 50 (50% above nrc); level 100 (100% above nrc). it was used 270 g of sugar as an intake promoter. biopsis were perfomed on the wing of ileum of each animal, one at the onset and the other at the end of trial, in order to evaluate ca mobilization and ca:p of the bone. forage samples were collected monthly to evaluate oxalate levels and chemical composition. there was a time effect on ca mobilization and ca:p (p< 0.05), regardless the treatments. the average of the three treatments, at the onset and at the end of the trial, for ca and p levels and ca:p was, respectively: 10.05, 5.22, 1.93:1 and 6.24, 4.06, 1.54:1. the levels of oxalate in the grass varied from 1.18 to 2.00%. suplementing ca to young horses at a level 200% greater than the national research council recomendation did not prevent ca mobilization from the bone when the animals were grazing brachiaria humidicola for an extended period of time.
Emiss?o de gases do efeito estufa em diferentes usos da terra no bioma Cerrado
Siqueira Neto, Marcos;Piccolo, Marisa de Cássia;Costa Junior, Ciniro;Cerri, Carlos Clemente;Bernoux, Martial;
Revista Brasileira de Ciência do Solo , 2011, DOI: 10.1590/S0100-06832011000100006
Abstract: the conversion of native forests by cutting and burning into farming areas leads to alterations in the dynamics of soil organic matter, with changes in emissions of greenhouse gases (ghgs: co2, ch4 and n2o) from the biosphere to the atmosphere. these cause an average temperature rise and, consequently, global climate change. the aim of this study was to examine relationships between the fluxes of co2, ch4 and n2o with moisture, microbial biomass and inorganic n forms in soil with different land uses in the cerrado biome (rio verde county, state of goias - brazil). the climate (k?ppen-geiger) was classified as aw and the soil as latossolo vermelho distrófico caulinítico / a clayey kaolinitic oxisol under original cerrado (brazilian savanna) vegetation. the experiment was arranged in a completely randomized design (crd) with four treatments (areas): native vegetation - cerrado (ce); brachiaria pasture (pa); soybean in conventional tillage (sc) and no-tillage (nt) corn followed by millet. no significant differences in annual co2 and n2o emissions were observed between treatments. this can be explained by the variability of gas fluxes due to climate seasonality, with lower emissions in the winter due to low soil moisture. mean emissions of co2 were 108.9 ± 85.6 mg m-2 h-1 , and of n2o 13.5 ± 7.6 mg m-2 h-1 . for ch4 significant differences in the fluxes were only observed in pasture (32 mg m-2 h-1 ), while in the other areas inflows between 46 and 15 mg m-2 h-1 were observed. the ghg fluxes showed close correlation with soil moisture. the n-no3- emissions were significantly correlated with co2-emissions in all areas. considering all treatments together, the three ghg fluxes were correlated with the microbial c and n contents. however, the cmicro: nmicro ratio was not significantly correlated with the ghg flux. only for pasture the co2 and n2o fluxes were correlated with the content of soil inorganic-n. results suggested that the ghg fluxes in the cerrado are related to
Porcentagens de saponinas e taninos em vinte e oito cultivares de alfafa (Medicago sativa L.) em duas épocas de corte - Botucatu - SP
Vieira, Maria Eunice de Queiroz;Costa, Ciniro;Silveira, Ant?nio Carlos;Arrigoni, Mário De Beni;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000600007
Abstract: the experiment was carried out to evaluate saponins and tannins contents, the proteins solubility (ps) of 28 alfalfa cultivates: crioula, monarca, br 4, alto great, mh 4, sw 9210 a, 5929, br 1, el grande, 5715, mh 15, valley plus, br 2, rio, sw 8210, maricopa, ici 990, 5888, p 30, alfa-200, wl 516, sw 8112 a, br 3, florida 77, araucana, falcon, semit 921 and sutter. the analyzed material came from the 10th and 14th harvests (which occurred on 12/08/97 and 04/16/98, respectively) from an experiment conducted at the college of veterinary medicine and animal science, unesp, botucatu. samples from each cultivate were weighed and oven-dried at 52oc. saponins were extracted with a hydrophilic and lipophilic solvent, and their content was calculated by means of the following equation: y = 0.8121x - 1.4759 (r2 = 1.00). total and condensed tannins were ultrasound-extracted for 12 min. total tannin content was calculated by means of the following equation: y = 44.978 + 0.5644 (r2 = 0.9977); condensed tannin content was determined by multiplying the absorbency by 78.26 and dividing it by the dry matter content. ps was determined through the koh method, using the following formula: ps (%) = (100) (soluble protein) / crude protein. no differences were detected (p>0.05) among cultivates in saponin content, total tannin and condensed content of ps. harvest time effect was observed (p<0.05) in total tannin content only. the low average saponin content (1.0%) and protein solubility (34.11%) do not constitute a limiting factor for the use of the above alfalfa cultivars.
Medidas objetivas das carca?as e composi??o química do lombo de cordeiros alimentados e terminados com três níveis de proteína bruta em creep feeding
Ortiz, Jessé Siqueira;Costa, Ciniro;Garcia, Cledson Augusto;Silveira, Liciana Vaz de Arruda;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000700026
Abstract: the objective of this trial was to evaluate the effects of three concentrate protein levels (15, 20 or 25% cp) on measurements of carcass and longissimus dorsi muscle, weights and yields of cuts, and chemical composition and tenderness of meat of suffolk lambs in creep feeding. fifteen single birth lambs were used in this study. lambs were slaughtered when they reached a final body weight of 28 kg. after slaughter, carcasses were maintained in a refrigerator at 5oc for 24 hours followed by measurements on the left half carcass done after separation of the commercial cuts. the longissimus dorsi area was measured to obtain the loin eye area (lea, cm2). both left and right loins were frozen; the left was used for determination of chemical composition while the right for a tenderness test ("warner bratzler shear force"). different concentrate crude protein levels did not affect carcass measurements as well as measurements on the longissimus dorsi. however, significant differences among treatments were observed for weight and yield of shoulder clod with the highest values found on the 25% crude protein concentrate. chemical analyses of longissimus dorsi showed significant differences across treatments for ether extract, ash, and tenderness. it can be concluded that the diet containing soybean meal must be formulated to yield 25% of crude protein because it reduced the fat content and improved the tenderness of the meat. in addition, it also increased both weight and yield of shoulder clod with no changes on carcass measurements and weight and yields of the remaining cuts.
Efeito de diferentes níveis de proteína bruta na ra??o sobre o desempenho e as características de carca?a de cordeiros terminados em creep feeding
Ortiz, Jessé Siqueira;Costa, Ciniro;Garcia, Cledson Augusto;Silveira, Liciana Vaz de Arruda;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000700027
Abstract: this trial was carried out to evaluate the effects of different concentrate crude protein levels (15, 20 or 25%) on production and carcass traits of suffolk lambs in creep feeding. an economical analysis of the production system was also performed. fifteen single birth lambs fed ad libitum twice a day were used in this study. the average daily intake was measured by subtracting the orts from the amount of feed offered to the animals. lambs were weighed every fourteen days to determine body weight gain. to measure slaughter body weight (sw) animals were fasted for 16 h and then weighted. after evisceration both hot carcass weight and yield were obtained. to determine cold carcass yield and cooling losses, carcasses were placed in a refrigerator at 5oc for 24 hours and weighted again. the different concentrate crude protein levels affected the daily weight gain only when the slaughter age was used as the covariable. conversely, crude protein levels did not significantly change carcass traits in the present trial. it can be concluded that the concentrate with 25% of crude protein is recommended to suffolk lambs in creep feeding because of the higher daily weight gain and maintenance of carcass traits.
Influência do método de fena??o e tempo de armazenamento sobre a composi??o bromatológica e ocorrência de fungos no feno de alfafa (Medicago sativa, L. cv. Flórida 77)
Nascimento, Jussimara Manoela;Costa, Ciniro;Silveira, Ant?nio Carlos;Arrigoni, Mário De Beni;
Revista Brasileira de Zootecnia , 2000, DOI: 10.1590/S1516-35982000000300005
Abstract: the objective of this experiment was to study the influence of six haying and four storage periods on the chemical composition and mold growth of alfafa hay. a 6x4 factorial arrangement was used in a completely randomized design, with five replicates for chemical analyses and four replicates for mold determinations. the haying methods were: t1- (shade, s) shade-drying; the forage was carried to a barn immediately after cutting and spreaded (s); t2 and t3: the material was sun-dried until a 50% weight loss and was shade-dried thereafter; t2 was spreaded (sun 50%, s) and t3 was piled up (sun 50%, p). treatments t4 and t5 consisted of sun-drying and revolving the forage until a 60% weight loss and then completing the drying process under shade, with the material either spreaded (t4, sun 60%, s) or piled up (t5, sun 60%, p). t6 consisted of sun-drying until an 80% loss and then piling up under shade (sun 80%, p). the four storage periods were: 0, 15, 30 and 60 days. it was observed that the hays originating from the longest sun-drying periods showed the worst quality in terms of cp, ndf and adf. mold occurrence was highest in the shade-dried hay (t1) and also in the piled-up material, due to lack of ventilation necessary for moisture removal. the most adequate method for alfalfa conservation consisted of sun-drying the forage until a 50% weight loss, followed by shade-drying of the spreaded material.
Níveis de energia no desempenho e características da carca a de cordeiros alimentados em creep feeding
Garcia Cledson Augusto,Costa Ciniro,Monteiro Alda Lúcia Gomes,Neres Marcela Abbado
Revista Brasileira de Zootecnia , 2003,
Abstract: O trabalho foi realizado no Setor de Ovinocultura da Universidade de Marília, objetivando estudar os efeitos de três níveis de energia (2,6; 2,8 e 3,0 Mcal EM/kg MS) na ra o de cordeiros inteiros Suffolk criados em creep feeding, sobre o desempenho e características de carca a. Na pari o numerava-se e registravam-se o peso ao nascer dos cordeiros que, posteriormente, foram distribuídos aleatoriamente, compondo doze repeti es por tratamento. As ra es foram isoprotéicas (18,46% PB) fornecidas ad libitum duas vezes ao dia, pesando-se as respectivas sobras. Os cordeiros foram pesados a cada 14 dias, permanecendo com as ovelhas até atingirem o peso vivo final, preestabelecido em 31 kg. Em seguida, os cordeiros permaneceram em jejum alimentar por 16 horas, até o momento do abate, obtendo-se o peso vivo ao abate. Após o abate, registraram-se os pesos da carca a quente e do conteúdo digestivo, para o cálculo do peso de corpo vazio. As carca as permanecerem por 24 horas na camara de refrigera o em temperatura de 5oC, obtendo-se o peso da carca a fria. Para o ganho médio diário ocorreu diferen a significativa entre os tratamentos, utilizando-se como covariável a idade de abate, com melhor desempenho para os cordeiros que receberam a ra o com 3,0 Mcal EM. Para as características da carca a n o houve efeito dos tratamentos. Concluiu-se que o nível 3,0 Mcal EM foi o mais indicado para a ra o de cordeiros Suffolk alimentados e terminados em creep feeding.
Medidas objetivas e composi o tecidual da carca a de cordeiros alimentados com diferentes níveis de energia em creep feeding
Garcia Cledson Augusto,Monteiro Alda Lúcia Gomes,Costa Ciniro,Neres Marcela Abbado
Revista Brasileira de Zootecnia , 2003,
Abstract: O trabalho foi desenvolvido no Setor de Ovinocultura da Universidade de Marília, SP, objetivando avaliar o efeito dos três níveis de energia (2,6; 2,8 e 3,0 Mcal EM/kg MS) sobre as medidas objetivas das carca as e do lombo, pesos e rendimentos dos cortes, além da composi o tecidual e musculosidade da carca a de cordeiros alimentados em creep feeding. As ra es foram isoprotéicas (18,50% PB), fornecidas ad libitum, duas vezes ao dia. Os cordeiros permaneceram com as ovelhas até o abate, quando atingiam o peso preestabelecido de 31 kg. Posteriormente, os animais foram submetidos a jejum alimentar, registrando-se o peso vivo ao abate. Durante o resfriamento na camara de refrigera o a 5oC, por 24 horas, as carca as foram penduradas pelas articula es tarso metartasiana, distanciadas em 17 cm; sendo em seguida mensuradas. As carca as foram seccionadas ao meio e a metade esquerda dividida em sete regi es anat micas (paleta, perna, lombo, costelas falsas, costelas verdadeiras, baixo e pesco o), possibilitando o cálculo dos pesos e rendimentos dos cortes. Posteriormente, efetuou-se as mensura es no músculo Longissimus dorsi e a perna esquerda foi dissecada e determinados os pesos dos músculos, da gordura e dos ossos, além de calculado o índice de musculosidade. Os resultados revelaram diferen as significativas para as medidas de profundidade do tórax, peso e rendimento das costelas verdadeiras e gordura intermuscular da perna, sendo que o nível de 3,0 Mcal EM na ra o proporcionou os melhores resultados, para cordeiros Suffolk alimentados e terminados em creep feeding.
Porcentagens de saponinas e taninos em vinte e oito cultivares de alfafa (Medicago sativa L.) em duas épocas de corte - Botucatu - SP
Vieira Maria Eunice de Queiroz,Costa Ciniro,Silveira Ant?nio Carlos,Arrigoni Mário De Beni
Revista Brasileira de Zootecnia , 2001,
Abstract: O objetivo do estudo foi determinar os conteúdos de saponinas, taninos e a solubilidade da proteína (SP) de 28 cultivares de alfafa: Crioula, Monarca, BR 4, Alto Great, MH 4, SW 9210 A, 5929, BR 1, EL Grande, 5715, MH 15, Valley Plus, BR 2, Rio, SW 8210, Maricopa, ICI 990, 5888, P 30, Alfa-200, WL 516, SW 8112 A, BR 3, Florida 77, Araucana, Falcon, Semit 921 e Sutter. O material analisado foi obtido do 10o e 14o corte, respectivamente; em 08/12/97 e 16/04/98, de um experimento desenvolvido na Faculdade de Medicina Veterinária e Zootecnia, UNESP, Botucatu. Amostras de cada cultivar foram colhidas, pesadas e secas em estufa a 52oC. As saponinas foram extraídas com solvente hidrofílico e lipofílico e o conteúdo foi calculado pela equa o y=0,8121x-1,4759, R2 = 1,00. A extra o dos taninos totais e condensados foi efetuada por meio de ultra-som (12 min), sendo os taninos totais determinados pela equa o: y=44,978 + 0,5644 com R2=0,9977 e os condensados, multiplicando-se a absorbancia por 78,26 dividido pelo teor de matéria seca. A SP foi determinada pelo método de KOH, de acordo com a seguinte fórmula: SP (%) = proteína solúvel x 100/proteína bruta da amostra. Os teores de saponinas, taninos totais e condensados e a solubilidade da proteína n o diferiram (P>0,05) entre as cultivares. Houve efeito (P<0,05) da época de corte apenas sobre o teor de taninos totais. Os teores médios de saponinas de 1,00% aliados à baixa solubilidade média da proteína bruta (34,11%) n o se constituem em fatores limitantes para uso dos cultivares de alfafa estudadas.
Page 1 /55
Display every page Item


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