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Registros recuperados: 8
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BEAK TRIMMING BY INFRARED RADIATION OF LAYERS Rev. Bras. Ciênc. Avic.
Pelicia,K; Garcia,EA; Santos,TA; Santos,GC; Vieira Filho,JA; Silva,AP; Moreira,J; Rabello,CBV; Garcia,RG.
ABSTRACT This study aimed at evaluating beak-trimming methods and intensities on the performance, beak length and uniformity, and egg parameters of commercial layers. During the rearing period, birds were distributed in randomized blocks, with a 2x3 factorial design + two treatments, consisting of beak trimming with infrared (IR) radiation (moderate or severe); three IR intensities (low: 42 nm, intermediate: 46 nm, or high: 52 nm); and two control hot blade (HB) beak trimming treatments (moderate or severe) with eight treatments and five replicates of 21 chicks each, totaling 840 birds. During the growing phase (second experiment) the factorial design was modified to 2 x 3 x 2 + 4, comprising two IR beak-trimming intensities (moderate or severe); three IR...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternative beak-trimming methods; Beak-trimming; Infrared radiation; Lohmann White layers.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100300
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Beak trimming methods and their effect on the performance and egg quality of Japanese quails (Coturnix japonica) during lay Rev. Bras. Ciênc. Avic.
Pizzolante,CC; Garcia,EA; Saldanha,ESPB; Laganá,C; Faitarone,ABG; Souza,HBA; Pelicia,K.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Age; Beak trimming; Feathering; Performance; Quails.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000100003
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Calcium and available phosphorus levels for laying hens in second production cycle Rev. Bras. Ciênc. Avic.
Pelicia,K; Garcia,EA; Faitarone,ABG; Silva,AP; Berto,DA; Molino,AB; Vercese,F.
This experiment studied the effect of four calcium (3.0, 3.5, 4.0, and 4.5%) and four available phosphorus levels (0.25, 0.30, 0.35, and 0.40%) in the diet of semi-heavy commercial layers after molting. Hisex Brown® layers between 90 and 108 weeks of age were distributed in a completely randomized experimental design with a 4x4 factorial arrangement with 16 treatments of five replicates of eight birds each. mortality, egg production, feed intake, egg mass, average egg weight, calcium and phosphorus intake, feed conversion ratio (per dozen eggs and per kg eggs), eggshell percentage and thickness, eggshell strength, eggshell weight per surface area (ESWSA), yolk percentage and color, albumen percentage, albumen and yolk heights, and blood and excreta calcium...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Available phosphorus; Egg quality; Nutritional requirements; Post-molting; Semi-heavy layers.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000100007
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Calcium levels and limestone particle size in the diet of commercial layers at the end of the first production cycle Rev. Bras. Ciênc. Avic.
Pelicia,K; Garcia,E; Móri,C; Faitarone,ABG; Silva,AP; Molino,AB; Vercese,F; Berto,DA.
This study evaluated the effect of dietary calcium levels and limestone particle size distribution on first-cycle layer performance and egg quality. A completely randomized experimental design in 4x3 factorial arrangement (four Ca levels - 3.0, 3.5, 4.0, 4.5%; and three limestone particle size distributions - 100% fine, 50% fine and 50% coarse, 30% fine and 70% coarse) was applied, totaling 12 treatments with six replicates of eight birds each. The treatments did not influence the most of evaluated performance and internal and external egg quality parameters. However, limestone particle size distribution quadratically affected with percentage of defective eggs, with the lowest percentage obtained with the distribution 61.75% fine limestone and 38.25%...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Egg production; Limestone; Marketable eggs; Nutrition; Poultry.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000200003
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Chicken Meat Submitted to Gamma Radiation and Packed with or without Oxygen Rev. Bras. Ciênc. Avic.
Pelicia,K; Garcia,EA; Molino,AB; Santos,GC; Vieira Filho,JA; Santos,TA; Berto,DA.
The objective of this study was to evaluate the effects on gamma radiation levels on the physical and microbiological characteristics of chicken breast meat. A completely randomized experimental design in a 4x2x3 factorial arrangement was adopted. Treatments consisted of four radiation concentrations (0, 2, 4, or 8kGy), two package sealing methods (with or without vacuum), and three storage times (01, 07, or 14 days), with ten replicates each, totaling 240 chicken breast fillets. Packaging and radiation had no influence (p>0.05) on chicken breast meat pH, water retention capacity, or presence of Salmonella spp. Breast fillets not submitted to radiation and vacuum packed presented higher water retention capacity (p<0.05) than those radiated at 4kGy...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Poultry production; Vacuum preservation; Storage period; Ionizing radiation.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200255
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Effects of dietary calcium levels and limestone particicle size on the performance, tibia and blood of laying hens Rev. Bras. Ciênc. Avic.
Pelicia,K; Mourao,JLM; Garcia,EA; Pinheiro,VMC; Berto,DA; Molino,AB; Faitarone,ABG; Vercese,F; Santos,GC; Silva,AP.
A total of 405 23-week-old ISA® Brown layers were distributed in a completely randomized experimental design in a factorial arrangement with nine treatments consisting of three dietary calcium levels (3.5, 3.75, and 4.5%) and three limestone particle sizes (100% fine limestone (FL), 70% FL + 30% coarse limestone (CL) and 50% (FL) + 50% (CL)), with nine replicates of five birds per cage. The following parameters were evaluated: percentage of lay, defective eggs, egg weight, egg mass, feed intake, feed conversion ratio (per kg eggs and per dozen eggs), and mortality. Dietary Ca levels significantly affected lay, with birds fed diets containing 4.5% calcium producing less eggs as compared to those fed 3.0 and 3.75% Ca. Egg production linearly decreased as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Egg production; Mineral nutrition; Mineral particle size.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000100005
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Evaluation of a radiographic method to detect tibial dyschondroplasia lesions in broilers Rev. Bras. Ciênc. Avic.
Pelicia,K; Aparecido Jr,IM; Garcia,EA; Molino,AB; Santos,GC; Berto,DA; Vieira Filho,JA; Murakami,ESM; Montenegro,AT; Silva,AM.
This study aimed at developing radiographic techniques for the early detection of dyschondroplastic lesions in the tibia of broilers. The experiment was carried out at the facilities of UNIFOR/MG and Formiga and UNIFENAS/ Alfenas with 420 one-day-old male Cobb broilers. At 20 days of age, all birds were radiographed and identified with an alpha-numeric metal ring in the right leg. At 40 days of age, 42 broilers previously selected as a function of bone mineral density and lesion thickness scores were again radiographed and scored, and then sacrificed. Their right tibia was removed for gross and histological examination of the growth plate. The results showed that radiographic techniques are correlated with gross and histological examination and that there...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler production; Histology; Gross examination; Radio-diagnosis; Tibia.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000200007
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Production performance and egg quality of quails (Coturnix japonica) during several periods of the day Rev. Bras. Ciênc. Avic.
Pizzolante,CC; Faltarone,ABG; Garcia,EA; Saldanha,ESPB; Deodato,AP; Sherer,MR; Mendes,AA; Mori,C; Pelicia,K.
Three experiments were carried out to analyze the performance and egg quality of Japanese quails throughout the day when submitted to different lighting programs. In each experiment, birds were submitted to a period of 28 days for adaptation to the lighting program. During the following three days, each day - from 7 am to 7 pm or 9 pm - was divided into six or seven periods of two hours each, and the remaining hours corresponded to another single period. All birds were submitted to the same management practices, and received water and feed ad libitum. The experimental diet was formulated according to NRC (1994) standards. It was observed lower feed intake in the period of 9 pm to 7 am, and a higher incidence of lay from 3 pm to 7 pm, as opposite to hens,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Periods of lay; Egg production; Lighting programs.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300002
Registros recuperados: 8
Primeira ... 1 ... Última
 

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