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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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Broiler Pre-Slaughter Water Diet with Grass Lemongrass (Cymbopogon Citratus Stapf) Rev. Bras. Ciênc. Avic.
Garcia,RG; Royer,AF; Nääs,IA; Borille,R; Santana,M; Caldara,FR.
ABSTRACT The pre-slaughter management is one of the predisposing factors to the reduction in the quality of the carcass and broiler meat, mainly for being a stressful condition. This study evaluates the inclusion of lemongrass (Cymbopogon citratus Stapf) in the water used in the diet of pre-slaughter broilers for the first time. The carcass and meat quality parameters were evaluated. The experiment was carried out in the poultry production of an experimental sector of the Federal University of Grande Dourados - UFGD. A total of 2,594 broilers were distributed in an entirely randomized design in a factorial arrangement of 3x2x2, with three different lemongrass concentrations in the form of infusion (0. 1 and 5 g/L), two sexes and two genetic strains (Ross...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Meat; Welfare; Phytotherapy; Pre-slaughter; Meat quality.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400725
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Effects of the Addition of Pure Glycerin Supplementation in the Drinking Water on the Performance of Broilers Submitted to Heat Stress and Feed Restriction Rev. Bras. Ciênc. Avic.
Moraes,PO; Ceron,MS; Borille,R; Gianluppi,RDF; Lovato,GD; Cardinal,KM; Ribeiro,AML.
ABSTRACT The experiment was conducted to study the effect of pure glycerin supplementation (GLYC) in the drinking water of broilers subjected to heat stress and feed restriction. Water with 0, 1, or 2% glycerin was provided ad libitum to broilers in six hours of feed restriction. The birds were housed in two environments: thermoneutral (TN) - 25 ° C, and cyclic heat stress (HS) - 12h with 250C, 6h with 320C, 3h of 250 to 320C and 3h of 320 to 250C. The experimental design was randomized in a factorial arrangement of 2 x 3 + 2, with three GLYC levels, two environments and one control group with ad libitum feeding each environment. When submitted to HS, broiler receiving 2% glycerin presented higher weight gain (WG), water consumption (WC), feed intake (FI)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental temperature; Feed restriction; Glycerol; Performance; Water consumption.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300413
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Grape (Vitis Vinifera) Pomace Flour as Pigment Agent of Quail Eggs Rev. Bras. Ciênc. Avic.
Fróes,HG; Jácome,IMTD; Tavares,RA; Garcia,RG; Domingues,CHF; Bevilaqua,TMS; Martinelli,M; Naas,IA; Borille,R.
ABSTRACT The aim of the study was to evaluate the effect of dietary grape pomace flour (GPF) inclusion on the performance and egg quality of European quails (Coturnix coturnix coturnix) in lay. One hundred ninety-two (192), 42-day-old quails were distributed in a completely randomized design with four treatments (0, 2, 4 and 6% grape pomace flour inclusion) with six replicates of eight birds each. The performance parameters egg weight (g), average feed intake (g/bird), total feed intake (g/bird), egg production (%) and feed conversion ratio (kg/dozen) were evaluated, as well as egg quality traits Haugh unit, albumen weight (g), yolk weight (g), eggshell thickness (mm), egg specific gravity (g/cm3), and yolk pigmentation. There was no effect (p>0.05) of...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Additives; Egg production; Egg quality; Haugh Unit; Natural pigment..
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100183
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Influence of artificial lighting on the performance and egg quality of commercial layers: a review Rev. Bras. Ciênc. Avic.
Jácome,IMTD; Rossi,LA; Borille,R.
In Brazil, the egg production chain produces fresh eggs for the consumer market and for processing. Layers are housed in battery cage systems. Rearing and development farms are separate from egg-production farms. Considering the recent advance of Brazilian chicken egg production, scientific knowledge on management practices are required to disseminate and to consistently apply this knowledge to improve such practices. Artificial lighting is widely used in poultry reproduction, both in the production of hatchable eggs and of commercial eggs. Light is required for the release of hormones responsible for reproduction; however, the best lighting practices to stimulate laying poultry during the reproductive period still need to be determined, with the aim of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Photostimulation; Lighting programs; Sexual maturity; Egg production.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400001
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The use of light-emitting diodes (LED) in commercial layer production Rev. Bras. Ciênc. Avic.
Borille,R; Garcia,RG; Royer,AFB; Santana,MR; Colet,S; Naas,IA; Caldara,FR; Almeida Paz,ICL; Rosa,ES; Castilho,VAR.
Artificial lighting is one of the most powerful management tools available to commercial layer producers. Artificial light allows anticipating or delaying the beginning of lay, improving egg production, and optimizing feed efficiency. This study aimed at comparing the performance of commercial layers submitted to lighting using different LED colors or conventional incandescent lamps. The study was carried out in a layer house divided in isolated environments in order to prevent any influenced from the neighboring treatments. In total, 360 Isa Brown layers, with an initial age of 56 weeks, were used. The following light sources were used: blue LED, yellow LED, green LED, red LED, white LED, and 40W incandescent light. Birds in all treatment were submitted...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Artificial lighting; Commercial layers; Egg weight; Haugh units.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200009
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WELFARE OF BROILERS INGESTING A PRE-SLAUGHTER HYDRIC DIET OF LEMON GRASS Rev. Bras. Ciênc. Avic.
Royer,AFB; Garcia,RG; Borille,R; Santana,MR; Nääs,IA; Caldara,FR; Almeida Paz,ICL; Zeviani,WM; Alves,FMS; Sgavioli,S; Mariano,WS.
ABSTRACTThe pre-slaughter period is considered critical in broiler production. Several factors contribute to increase the birds' stress, such as handling, harvesting, and transportation, negatively affecting their welfare. This study aimed at evaluating the addition of lemon grass (Cymbopogon citratusStapf) to the drinking water of broilers during the pre-slaughter period on their behavior, blood cortisol, and surface temperature. The study was carried out at the experimental farm of the Federal University of Grande Dourados (UFGD), Dourados, MS, Brazil. In total, 2594 broilers were distributed according to a completely randomized experimental design, in a 3x2x2 factorial arrangement, with four replicates per treatment. Treatments consisted of three...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Behavior; Blood cortisol; Phytotherapy; Body surface temperature.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300301
Registros recuperados: 7
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