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| Borgatti,LMO; Albuquerque,R; Meister,NC; Souza,LWO; Lima,FR; Trindade Neto,MA. |
| The aim of this study was to compare performance and carcass characteristics of broilers fed diets with different Dietary Electrolyte balances (DEB) during the summer season. A total of 1,280 one-day-old Ross sexed chicks were distributed in 32 experimental units according to a randomized block design in a 4x2 factorial arrangement (4 levels and 2 sexes) and 4 replicates per treatment (40 birds per replicate). Feed program consisted of 3 phases (1-21, 22-42, 43-49 days of age). Experimental diets were formulated based on corn and soybean meal and adjusted to 210, 250, 290 and 330 mEq/kg of Na + K - Cl through the addition of sodium carbonate, potassium carbonate and ammonium chloride. Weekly measurements of body weight gain and feed intake were done, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler performance; Chloride; Electrolytes; Potassium; Sodium. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000300004 |
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| Celeghini,ECC; Arruda,RP; Albuquerque,R; Silva,FHA; Faria,DE; Andrade,AFC; Nascimento,J; Raphael,CF. |
| This experiment was designed with the objective of developing a simple, practical, and high repeatability technique for the simultaneous evaluation of the integrity of the plasmatic and acrosomal membranes, as well as funcional mitochondria of domestic fowl spermatozoa using an association of fluorescent probes. Four ejaculates (motility > 80% and abnormal morphology < 10%) from each of six Ross male broiler breeder (n=24) were diluted in TALP sperm medium (25x10(6) spermatozoa/mL) and split into two aliquots, and one of these aliquots was flash frozen in liquid nitrogen and thawed to damage all cellular membranes. Three treatments were prepared from these aliquots, with the following ratios of Fresh semen:Flash frozen semen: 100:0 (T100), 50:50... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fluorescent probes; Membranes; Rooster; Sperm. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000300001 |
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| Murarolli,VDA; Burbarelli,MFC; Polycarpo,GV; Ribeiro,PAP; Moro,MEG; Albuquerque,R. |
| This study aimed to evaluate diets supplemented with prebiotic, probiotic and symbiotic as an alternative to antibiotics on the performance and immune response against the virus of Newcastle disease in broiler chickens. 1,400 one-day old male Cobb 500 chicks were raised until 42 days old in a completely randomized design with 2x2+1 factorial scheme with seven replications. The treatments were: diet without supplementation (base diet - BD), BD + prebiotic, BD + probiotic, BD + symbiotic (prebiotic + probiotic), and BD + antibiotic. The parameters evaluated were performance and antibody serum titers against Newcastle disease. No antibiotic effect was observed on performance. The symbiotic provided better results for weight gain and feed:gain ratio until 21... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative additives; Performance enhancers; Vaccine titerss. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000300008 |
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| Cardoso,ALSP; Albuquerque,R; Tessari,ENC. |
| The humoral immune response of broilers fed diets supplemented with Zinc (Zn) (0, 40, and 400mg/kg) and vitamin E (0, 12, and 120mg/kg), separately or combined, was evaluated. A completely randomized design was used according to a 3x3 factorial arrangement, with nine treatments and four repetitions per treatment. Sexed birds (n=1440) were distributed in 36 boxes with 40 chicks each and reared until 41 days of age. Vaccination against Newcastle Disease (ND) was performed when birds were 14 days old. ELISA and HI tests were used to assess antibody levels before vaccination and at 28, 35 and 41 days of age. The results were analyzed using Proc Mixed from SAS. The interaction between the highest dietary levels of Zn and vitamin E resulted in higher antibody... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broilers; Humoral Immunity; Newcastle Disease; Vitamin E; Zinc. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000200005 |
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| Albuquerque,R; Fagundes,ACA; Shirama,NN; Moraes,CSD. |
| Foi estudado, para frangos de corte, mediante a utilização de 3 programas de alimentação (3, 4 e 5 fases de arraçoamento), com níveis nutricionais diferenciados, a ocorrência de ascite , sendo que machos e fêmeas foram criados separadamente durante a época do inverno. Utilizou-se 6 repetições por tratamento, sendo 40 aves por repetição. Avaliou-se o desempenho e a mortalidade (total e por ascite), além de se verificar hipertrofia do ventrículo direito e alteração do hematócrito. Não se obteve diferença significativa apenas para os valores do hematócrito, no entanto, melhores resultados foram atingidos na criação de machos em relação às fêmeas (p<0.05) para peso das aves, consumo de ração e peso dos ventrículos (VD e VT). Obteve-se correlação positiva... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ascite; Frangos de corte; Hipertrofia ventricular; Hematócrito; Programas alimentares. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000100005 |
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| Burbarelli,MFC; Merseguel,CEB; Ribeiro,PAP; Lelis,KD; Polycarpo,GV; Carão,ACP; Bordin,RA; Fernandes,AM; Souza,RLM; Moro,MEG; Albuquerque,R. |
| ABSTRACT The objective of this study was to investigate the influence of two cleaning and disinfection programs on broiler performance and on the microbiological status of the facilities. This trial was an observational study of comparative character. Two experiments were conducted, with 960 birds each. Both experiments were carried out in a positive-pressure broiler house. Broilers were distributed in pens equipped with a bell drinker and a tube feeder each. In the first experiment, new wood shavings were used as litter material, and in the second, reused wood shavings were used. Two treatments with16 replicates of 30 birds each were evaluated. The regular treatment consisted of dry and wet organic matter removal, followed by washing. The European... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poultry; Health; Biosecurity; Disinfectants. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400575 |
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| Meirelles,HT; Albuquerque,R; Borgatti,LMO; Souza,LWO; Meister,NC; Lima,FR. |
| One-day-old male Ross chicks were used in an experiment designed to compare two methionine sources, DL-methionine and methionine hydroxy analogue free acid (MHA-FA), and four different levels: 0.41; 0.47; 0.53; 0.59% (starter diet); 0.35; 0.41; 0.47; 0.53% (grower diet); and 0.30; 0.36; 0.42; 0.48% (finisher diet). One thousand two hundred and eighty chicks were housed in 32 experimental floor-pens (40 birds each) and fed 8 experimental diets based on corn and soybean meal for 47 days. The effects of methionine sources and levels were evaluated by performance data, carcass and cut yields, feather yield and abdominal fat content. Data were analyzed as a completely randomized design in a 2x4 factorial arrangement (2 sources and 4 levels), with 8 treatments... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid; Broilers; Carcass yield; Methionine source; Performance. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000100009 |
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| Ribeiro,PAP; Matos Jr,JB; Lara,LJC; Araújo,LF; Albuquerque,R; Baião,NC. |
| An experiment was carried out with 1200 23-week-old white Dekalb commercial laying hens to investigate production responses, egg quality, and energy utilization of laying hens fed different dietary energy levels at the beginning of lay. Birds were housed and divided in five groups of 240 birds according to dietary apparent metabolizable energy corrected for nitrogen (AMEn): 2700 kcal/kg; 2775 kcal/kg; 2850 kcal/kg; 2925 kcal/kg; and 3000 kcal/kg, with six replicates of 40 birds each. Birds were fed the experimental diets based on corn and soybean meal for 17 weeks. Diets were iso-nutritive, except for energy level. Increasing AMEn levels had a negative effect on egg production and egg mass (p≤0.05). AMEn levels did not influence body weight, egg weight, or... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Energy conversion; Egg quality; Laying hens. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400007 |
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| Takeara,P; Toledo,A.L; Gandra,E.R.S; Albuquerque,R; Trindade Neto,M.A. |
| Avaliou-se nível de lisina digestível para 1050 frangos de corte dos 12 aos 22 dias de idade. O delineamento experimental foi inteiramente ao acaso, com cinco tratamentos, sete repetições e 30 aves por unidade experimental. Os tratamentos foram: 1,05; 1,10; 1,15; 1,20 e 1,25% de lisina digestível. Avaliaram-se ganho de peso, consumo de ração, conversão alimentar, composição e deposição de nutrientes corporais. Foram constatados efeitos quadráticos de lisina digestível no consumo de ração e resposta linear ascendente no peso da carcaça. Na composição química da carcaça, houve resposta quadrática do nível de lisina na concentração de proteína. As taxas de deposição proteica, deposição de água, da carcaça e do corpo total tiveram aumento linear em resposta ao... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Frango; Composição corporal; Deposição lipídica; Deposição proteica; Desempenho. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000600023 |
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