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| Registros recuperados: 27 | |
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| 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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| 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 > 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 >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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| 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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| 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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| 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 >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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| Almeida Paz,ICL; Garcia,RG; Bernardi,R; Nääs,IA; Caldara,FR; Freitas,LW; Seno,LO; Ferreira,VMOS; Pereira,DF; Cavichiolo,F. |
| Two experiments were carried out at the Poultry Sector of the School of Agrarian Sciences of the Federal University of Grande Dourados to evaluate the incidence of leg problems in broilers reared on two distinct types of bedding material: rice husks or wood shavings, both new and reused. In both trials, a randomized experimental design was applied in factorial arrangement (2 x 2 x 2) using two genetic strains (Cobb® or Ross®); two sexes (male or female), and two litter materials (rice husks or wood shavings). In each trial 1080 one day pullets were reared equally divided in the treatments. The birds were placed in 4.5 m² boxes at a density of 10 birds m-2. All birds were fed diets with equal nutritional density, and water was offered ad libitum. Feeds were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gait score; Leg problems; Multicriteria analysis; Rice husks; Wood shaving. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000300008 |
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| 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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| Registros recuperados: 27 | |
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