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Registros recuperados: 27
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Black bone syndrome in chiken meat Rev. Bras. Ciênc. Avic.
Baldo,GAA; Almeida Paz,ICL; Alves,MCF; Nääs,IA; Garcia,RG; Caldara,FR; Gavilan,CWS.
Black bone syndrome (BBS) affects poultry industry, and it is caused by the darkening of the tissue adjacent to the bone due to leak age of bone marrow contents during cooking. The objective of this experiment was to estimate BBS incidence in chicken thighs. A completely randomized experimental design, with two treatments (refrigerated or frozen) of 50 replicates each, was applied. The influence of BBS on meat quality was assessed according to bone lightness (*L), and meat appearance and sensorial characteristics. Lightness was measured using a colorimeter (Minolta® 410R) positioned on the proximal epiphyseal growth plate. Meat quality was evaluated after roasting by assigning scores for appearance (acceptable = no darkening, intermediate = little...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bone darkening; Commercial processing plant; Meat quality.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000400005
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BONE CHARACTERISTICS OF BROILERS SUPPLEMENTED WITH VITAMIN D Rev. Bras. Ciênc. Avic.
Colet,S; Garcia,RG; Almeida Paz,ICL; Caldara,FR; Borille,R; Royer,AFB; Nääs,IA; Sgavioli,S.
ABSTRACTVitamin D is added to broiler diets to supply its physiological requirement for bone formation. The fast growth rate of modern broilers is often associated with poor bone formation. Increasing vitamin D supplementation levels and the use of more available sources have applied to try to prevent leg problems, to increase carcass yield, and to improve the performance of broilers. The present study evaluated three vitamin D supplementation levels (1) 3,500 IU (control); (2) control + 1,954 IU of 25-hydroxycholecalciferol; and (3) control + 3,500 IU of vitamin D in broiler diets supplied up to 21 days of age. The objective was to investigate if the vitamin D levels above the recommendations could reduce leg problems in broilers. In this experiment, a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gait score; Tibial dyschondroplasia; Valgus; Varus; Pododermatitis..
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300325
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Bone mineral density of tibae and femura of broiler breeders: growth, development and production Rev. Bras. Ciênc. Avic.
Almeida Paz,ICL; Mendes,AA; Quinterio,RR; Vulcano,LC; Takahashi,SE; Garcia,RG; Komiyama,CM; Balog,A; Pelícia,K; Wescheler,FS; Scudeller,PSO; Piccinin,A.
The aim of this study was to follow-up the physiological variations in the development of the bone tissue, associating them with the egg production curve. This study was carried out in the facilities of the Faculdade de Medicina Veterinária e Zootecnia of the UNESP, Botucatu, Brazil. Twenty-three families of Ross broiler breeders were used, each family consisting of 13 females and 1 male, distributed in 23 pens of 5.0m² each. The management was that recommended by the genetic company manual (Agroceres Ross, 2003), with daily feeding until 6th week of age; and birds were fed according to a 5:2 schedule (5 days fed, 2 days of fasting) between 7 and 17 weeks of age, returning to daily feeding starting at 18 weeks of age. Birds did not receive afternoon...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bone; Bone density; Broiler breeders; Egg production; Shell quality.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000200002
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Bone mineral density: review Rev. Bras. Ciênc. Avic.
Almeida Paz,ICL; Bruno,LDG.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bone mineral density; Bone quality; Densitometry and poultry.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000200001
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Características de qualidade óssea e desempenho de avestruzes Rev. Bras. Ciênc. Avic.
Almeida Paz,ICL; Mendes,AA; Balog,A; Vulcano,LC; Almeida,ICL; Takahashi,SE; Komiyama,CM.
Tipo: Info:eu-repo/semantics/report
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000100012
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Caracterização da degeneração femoral em frangos de corte por meio da densidade mineral óssea Rev. Bras. Ciênc. Avic.
Almeida Paz,ICL; Mendes,AA; Balog,A; Almeida,ICL; Vulcano,LC; Komiyama,CM.
Tipo: Info:eu-repo/semantics/report
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000100011
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Chicken meat quality as a function of fasting period and water spray Rev. Bras. Ciênc. Avic.
Komiyama,CM; Mendes,AA; Takahashi,SE; Moreira,J; Garcia,RG; Sanfelice,C; Borba,HS; Leonel,FR; Almeida Paz,ICL; Balog,A.
This study aimed at evaluating the effect of different fasting periods and water spray during lairage on the quality of chicken meat. A number of 300 male Ross broilers were reared up to 42 days of age, and submitted to four pre-slaughter fasting periods (4, 8, 12, and 16 hours) and sprayed with water or not during lairage. Deboned breast meat was submitted to the following analysis: pH, color, drip loss, water retention capacity, cooking loss, and shear force. There was a significant effect (p < 0.05) of fasting period on meat luminosity was significantly different, with the highest value obtained for 4-hour fasting, whereas no difference was found among the other fasting periods. Meat pH values were different among fasting periods when birds received...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Color; Meat; PH.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000300008
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Comparison of techniques for tibial dyschondroplasia assessment in broiler chickens Rev. Bras. Ciênc. Avic.
Almeida Paz,ICL; Mendes,AA; Takita,TS; Vulcano,LC; Guerra,PC; Wechsler,FS; Garcia,RG; Takahashi,SE; Moreira,J; Pelícia,K; Komiyama,CM; Quinteiro,RR.
This study was carried out at Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, SP, Brazil, with the objective of evaluating the efficacy of four techniques in the assessment of tibial dyschondroplasia lesions in broiler chickens. Four hundred Cobb male chicks were reared from 1 to 39 days of age. At 39 days, forty birds were selected and tibial dyschondroplasia status was assessed by four different techniques: evaluation using the lixiscope, macroscopic examination, histological examination and bone mineral density assessment using optical radiographic densitometry. The efficacy of each technique to assess dyschondroplasia lesions in the tibial growth plate was determined in comparison to histology, which was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Histology; Lixiscope; Macroscopic lesions; Optical radiographic densitometry; Tibial dyschondroplasia.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000100005
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Efficiency of prebiotics and probiotics on the performance, yield, meat quality and presence of Salmonella spp in carcasses of free-range broiler chickens Rev. Bras. Ciênc. Avic.
Takahashi,SE; Mendes,AA; Saldanha,ESPB; Pizzolante,CC; Pelícia,K; Quinteiro,RR; Komiyama,CM; Garcia,RG; Almeida Paz,ICL.
Two trials were carried out in the present study. Trial I evaluated the performance, carcass yield and breast meat quality, whereas Trial II evaluated the efficacy of utilizing prebiotics + probiotics on the control of Salmonella spp incidence in the carcasses of free-range broilers. In Trial I, 688 one-day-old male chicks of the Naked Neck Label Rouge strain were used, distributed in a randomized block design arranged according to a 2 x 2 factorial: control diet or diet supplemented with probiotics and prebiotics; and two rearing systems (confined or with access to paddocks - 3m²/bird), using four replicates with 35 birds each. The birds were reared until 84 days of age following the recommendations of management and nutrition for free-range strains, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass yield; Free-range broilers; Performance; Prebiotics and probiotics; Salmonella spp.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000300003
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Equilibrium Condition during Locomotion and Gait in Broiler Chickens Rev. Bras. Ciênc. Avic.
Alves,MCF; Almeida Paz,ICL; Nääs,IA; Garcia,RG; Caldara,FR; Baldo,GAA; Nascimento,GR; Amadori,MS; Felix,GA; Garcia,EA; Molino,AR.
ABSTRACT The experiment was carried out with the objective of evaluating a methodology to estimate the angulation and equilibrium condition, relating them to gait score and the main diseases of the locomotion system in males and females of commercial broiler strains. A completely randomized experimental design in a factorial arrangement (2x2) was applied, consisting of two sexes and two genetic strains, with five replicates of 53 chickens each. The following characteristics related to broiler locomotion were studied: gait score (GS); incidence of Valgus (VAL) and Varus (VAR) deformities and of pododermatitis (POD); body angle relative the ground (ANG); equilibrium condition (EC); body weight (BW) and breast weight (BrW); and incidence of femoral...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Angulation; Bone pathologies; Broiler production; Locomotion problems; Posture; Welfare.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300419
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Estimating the impact of environmental conditions on hatching results using multivariable analysis Rev. Bras. Ciênc. Avic.
Nääs,IA; Gigli,ACS; Baracho,MS; Almeida Paz,ICL; Salgado,DD.
Hatching results are directly related to environmental and biological surroundings. This research study aimed at evaluating the influence of incubation environmental conditions on hatchability and one-day-old chickling quality of five production flocks using multivariable analysis tool. The experiment was carried out in a commercial hatchery located in the state of São Paulo, Brazil. Environmental variables such as dry bulb temperature, relative humidity, carbon dioxide concentration, and number of colony forming units of fungi were recorded inside a broiler multi-stage setter, a hatcher after eggs transference, and a chick-processing room. The homogeneity of parameter distribution among quadrants inside the setter, the hatcher, and the chick room was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler chick; Chick quality; Hatchability; Hatchery; Incubation conditions.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000400004
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Impact of exposure to cold on layer production Rev. Bras. Ciênc. Avic.
Alves,FMS; Felix,GA; Almeida Paz,ICL; Nääs,IA; Souza,GM; Caldara,FR; Garcia,RG.
Infrared thermographic images were used to evaluate the effect of the exposure of layers to cold. In this trial, 540 Isa Brown® layers with an average age of 69 weeks were housed in a conventional layer house typically used in Brazil during a period of cold environmental temperatures. Environmental and heat-transference data were recorded between July 13-16, 2010. It was verified that layers under cold stress conditions lost four times more energy that the recommendations trying to maintain their body temperature. Due to their reduced feed intake capacity, hens are not capable of increasing the availability of the metabolic energy required to maintain their body temperature and egg production, consequently resulting in economic losses.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Infrared image; Housing environment; Heat exchange; Economic evaluation; Egg production.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000300010
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Implications of the use of sorghum in broiler production Rev. Bras. Ciênc. Avic.
Garcia,RG; Mendes,AA; Almeida Paz,ICL; Komiyama,CM; Caldara,FR; Nääs,IA; Mariano,WS.
This study aimed at evaluating total or partial replacement of corn by sorghum in broiler diets and at estimating the effect of the pigment supplementation on broiler performance, carcass and cuts yield, and possible breast and leg pigmentation. We used 1680 one-d-old Ross® 308 broilers. Birds were sexed and distributed according to a completely randomized design (2 x 3 + 1). Treatments consisted of a control diet based on corn and diets with two levels corn replacement by sorghum (50 and 100%) and three pigments levels, with four replicates of 60 birds per treatment. There was no effect (p &gt; 0.05) of the dietary replacement of corn by sorghum on performance, carcass and parts yield, and no changes in breast and leg meat pH (p &gt;0.05). Meat...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Birds; Meat quality; Pigments; Replacement of corn.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300013
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Incidence and physical properties of PSE chicken meat in a commercial processing plant Rev. Bras. Ciênc. Avic.
Garcia,RG; Freitas,LW de; Schwingel,AW; Farias,RM; Caldara,FR; Gabriel,AMA; Graciano,JD; Komiyama,CM; Almeida Paz,ICL.
It is known that PSE meat present important functional defects, such as low water holding capacity and ultimate pH, which may compromise the quality of further-processed meat products. In this study, L* (lightness), a* (redness), and b* (yellowness) values of 500 chicken breast fillets were determined using a portable colorimeter (Minolta, model CR-400) in a commercial processing plant. Fillets were considered pale when their L* was &gt;49. Out of those samples, 30 fillets with normal color and 30 pale fillets were evaluated as to pH, drip loss, cooking loss, water holding capacity, shear force, and submitted to sensorial analysis. An incidence of 10.20% PSE meat was determined. Pale and normal fillets presented significantly different (p<0.05) pH...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Meat color; Meat pH; Pale meat; Poultry production; Water retention capacity.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000400003
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Infrared thermography applied to the evaluation of metabolic heat loss of chicks fed with different energy densities Rev. Bras. Ciênc. Avic.
Ferreira,VMOS; Francisco,NS; Belloni,M; Aguirre,GMZ; Caldara,FR; Nääs,IA; Garcia,RG; Almeida Paz,ICL; Polycarpo,GV.
Brazil must comply with international quality standards and animal welfare requirements in order to maintain its position as world's largest exporter of poultry meat. With the scenario of global climate change there is the forecast of occurrence of extreme events with characteristics of both excess cold and heat for several regions of the country. This study aimed to evaluate the effectiveness of using images of infrared thermography to evaluate the loss of sensible heat in young broilers fed different dietary energy levels. Twenty birds were reared in a house with appropriate brooding using infrared lamps. Birds were distributed in a completely randomized experimental into two treatments: T1 (control diet with 2950 kcal ME/kg-1), and T2 (high-energy diet...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Energy-dense diet; Infrared thermal imaging; Metabolic heat; Poultry; Wellbeing.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000200005
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Litter materials and the incidence of carcass lesions in broilers chickens Rev. Bras. Ciênc. Avic.
Garcia,RG; Almeida Paz,ICL; Caldara,FR; Nääs,IA; Bueno,LGF; Freitas,LW; Graciano,JD; Sim,S.
The aim of this study was to evaluate the effects of different litter materials on litter compaction, broiler feathering and the incidence of carcass lesions. In the experiment, 3240 one-day-old Ross® chicks were selected by sex and distributed according to a completely randomized experimental design in a 2 x 6 factorial arrangement (two sex and six litter materials). The following litter materials were used: wood shavings, rice husks, chopped Napier grass, 50% sugar cane bagasse plus 50% wood shavings, 50% sugar cane bagasse plus 50% rice husks, and pure sugar cane bagasse. Litter compaction was weekly assessed using a penetrometer. On days 21, 35 and 42 of the experimental period, feathering on the back and legs was scored according to a 0 - 10 scale. On...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Compaction; Fathering; Quality; Substrate.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000100005
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Morphological asymmetry and broiler welfare Rev. Bras. Ciênc. Avic.
Nääs,IA; Sonoda,LT; Romanini,CEB; Morello,GM; Neves,HAF; Baracho,MS; Souza,SRLS; Menezes,AG; Mollo Neto,M; Moura,DJ; Almeida Paz,ICL.
Health status, feed conversion ratio, and mortality are long known broiler chicken production indicators. However, further parameters are required by today's demanding meat markets, as these indicators are not sufficiently accurate to determine flock overall welfare. Morphological asymmetry has been pointed as an alternative welfare indicator as it reflects the ability of the bird to cope with the challenges that rearing conditions may impose. This study aimed at evaluating the possibility of using morphological asymmetry as a welfare indicator. Broilers from 28 to 42 days of age were used in the trial. Birds were randomly selected in a commercial poultry farm and transported to the laboratory. They walked over the force measurement platform in order to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal welfare assessment; Broiler feet force; Broiler leg abnormalities; Welfare indicator.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000400003
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Ostrich (Struthio camellus) carcass yield and meat quality parameters Rev. Bras. Ciênc. Avic.
Balog,A; Almeida Paz,ICL.
This article aimed at compiling recent studies on the main factors that influence ostrich meat quality and carcass yield. Few articles investigated the effect of subspecies, which generally are not even mentioned. There are important dietary effects, particularly those caused by dietary protein to energy ratio. Rigor mortis follow-up studies showed that there are no losses in meat quality when carcasses are hot-deboned. Age at slaughter influences some meat quality traits, such as tenderness and lipid content. Few effects of gender have been observed, and at the same age at slaughter, both male and female present the same meat quality traits.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass yield; Meat quality; Ostrich production; Tenderness.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000400002
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Productive, Qualitative, and Physiological Aspects of Layer Hens Fed with Propolis Rev. Bras. Ciênc. Avic.
Belloni,M; Almeida Paz,ICL; Nääs,IA; Alves,MCF; Garcia,RG; Caldara,FR; Seno,LO.
ABSTRACT Laying hens reared under tropical conditions are usually under heat stress. Propolis is known for its pharmaceutical properties, such as increasing cell tolerance to hyperthermia, because of its antioxidants effects. This study aimed at evaluating the influence of different dietary propolis inclusion levels on the performance, egg quality, and bird surface temperature of layers. In this experiment 120 55-wk-old Isa Brown(r) layers were distributed according to a completely randomized experimental design into four treatments (0, 1, 2 and 3% dietary propolis inclusion levels), with three replicates of ten birds each. Performance and egg quality parameters, and birds' surface temperature were evaluated. Egg production, egg mass, feed intake, and feed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Egg production; Infrared thermography; Natural diet supplement.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400467
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Quality parameters of the tibiae and femora of ostriches Rev. Bras. Ciênc. Avic.
Almeida Paz,ICL; Mendes,AA; Balog,A; Almeida,ICL; Martins,MRFB; Vulcano,LC; Komiyama,CM.
An experiment was carried out to establish mean bone quality values of the tibiae and femora of ostriches and to evaluate these bones. The right leg bones of 10 males and 10 female African Black ostriches were evaluated. Birds were radiographed immediately after slaughter (during bleeding), with the aid of a portable X-ray apparatus. The obtained radiographs were scanned and bone mineral density means were obtained using software. Bone strength, Seedor index, and dry matter percentage were evaluated and correlated to weight gain during the finishing period (3-13 months of age). Mean values of the evaluated bone quality traits, not previously found in literature, were established. There were no significant differences between males and females in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bones; Bone mineral density; Bone quality; Bone strength; Ostriches.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000300005
Registros recuperados: 27
Primeira ... 12 ... Última
 

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